JP5630065B2 - Hot water system - Google Patents

Description

  The present invention relates to a multifunctional unit that can be retrofitted to an existing hot water supply system main body, and a hot water supply system including the hot water supply system main body and the multifunctional unit.

  Some hot water supply systems have a function of heating a heating liquid used in a heater such as a floor heater. Such a hot water supply system includes, for example, a hot water storage tank, a heating means for heating hot water in the hot water storage tank, a heat exchanger for heating the heating liquid by heat exchange with the hot water heated by the heating means, and a heating means. The hot water heated in step 1 is sent to the hot water storage tank and the heat exchanger and the hot water in the hot water storage tank is sent to the hot water heater such as a curan, and the hot water in the hot water storage tank is sent to the heating means and the tap water is supplied to the hot water storage tank and the hot water supply. Water circuit to send to the vessel.

  As such a hot water supply system, for example, one described in Patent Documents 1-3 is known.

JP 2004-101135 A Japanese Patent Laying-Open No. 2005-300079 JP 2003-194347 A

  However, since the hot water supply system as described above is different from the hot water supply system and the water circuit in comparison with the hot water supply system that does not have the function of heating the heating liquid, the heating means and the hot water storage tank are renewed according to the hot water supply circuit and the water circuit. There is a problem that it is necessary to design, and accordingly, the cost is increased and the development man-hour is increased.

  An object of the present invention is to solve the above-described problems, and is an existing hot water supply system body that does not have a function of heating a heating liquid used in a heater such as a floor heater. A multi-function unit including a heat exchanger that can be retrofitted and that can heat a heating liquid by heat exchange with hot water heated by heating means of an existing hot water supply system main body, and the multi-function It is to provide a hot water supply system to which a unit is attached later.

In order to solve the above-mentioned problems , the multi- function unit has a predetermined hot water supply system main body (2 , 2I ) comprising a hot water storage tank (11) and heating means (9) for heating the hot water in the hot water storage tank into hot water. , 2J, 2K, 2L, 2M, 2N, 2P, 2Q ), which can be connected to add a heating function (1 , 1I, 1J, 1K, 1L, 1M, 1N, 1P, 1Q, 1R) , 1S, 1T, 1U ), a first connection port (a1) to which a pipe (h5a) from an inlet (a7) into which the hot water flows in the heating means can be connected, and the hot water in the heating means The second connection port (a2) to which the pipe (h6a) from the hot water outlet (a8) from which the hot water is discharged can be connected to the pipe (h5b) from the discharge port (a9) from which the hot water is discharged in the hot water storage tank. Possible third connection port (a3) and A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected, and a heating liquid discharged from a predetermined heater (7) A fifth connection port (a5) to which one of the pipe (h12) from the outlet (a11) and the pipe (h13) from the inflow port (a11) into which the heating liquid flows can be connected, and the predetermined heating A sixth connection port (a6) to which the other of the discharge port and the inflow port in the container can be connected; a first flow path (h1) connecting the first connection port and the second connection port; A heat exchanger that exchanges heat between the second flow path (h2) connecting the fifth connection port and the sixth connection port, and the fluid flowing through the first flow path and the fluid flowing through the second flow path ( 3) and the third connection port with the heat exchanger and the first connection port in the first flow path A third flow path (h3) connected in a branched manner to a portion between and the fourth connection port connected in a branched manner to a portion between the heat exchanger and the second connection port in the first flow passage. The fourth channel (h4) and the branch point (N1) between the first channel and the third channel or the branch point (N2) between the first channel and the fourth channel. The adjustment valve (5) and the first pump (P1) disposed in the second flow path are provided.

And the hot-water supply system which concerns on a 1st, 2nd , 4th, 6th, 7th, 17th aspect is the above-mentioned multifunctional unit (1 , 1P ), and the hot-water supply system main body which can be connected with the said multifunctional unit ( 2 , 2P ) and a hot water supply system ( 100B, 100C, 100D, 100E, 100F, 100P ), wherein the multi-function unit includes the first connection port (a1) in the first flow path (h1). And a second pump (P2) disposed in a portion between the control valve (5) and the hot water system main body obtained by heating the inlet (a7) through which hot water flows and the hot water. A heating means (9) having a hot water outlet (a8) for discharging hot water, a discharge outlet (a9) for discharging hot water therein, and a hot water inlet (a10) for receiving the hot water discharged from the heating means. Has hot water storage tank (11 ), A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means, and a sixth flow path connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means. A third pump that is disposed in the flow path (h6) and the fifth flow path (h5) and sends hot water from the discharge port (a9) of the hot water storage tank (11) to the heating means (9) side. (P3), and the first connection port (a1) of the multi-function unit (1) is provided in the fifth flow path at a portion between the heating means and the third pump. The multi-function unit (1) is connected to the inlet (a7) side of the means and the third connection port (a3) of the multi-function unit is connected to the discharge port side of the hot water storage tank. ) Can be connected, and the sixth flow path has the first of the multi-function unit. The multi-function unit is installed such that a connection port is connected to the hot water outlet side of the heating means and the fourth connection port of the multi-function unit is connected to the hot water inlet side of the hot water storage tank. It can be connected.

In the hot water supply system (100B) according to the first aspect, the hot water supply system body (2) has a first control function (13aB) that controls the heating means (9) and the third pump (P3). It means further includes a (13B), the multi-functional unit (1), the first pump (P1), and controls the second pump (P2) and the adjusting valve (5), said first control means And further comprising a second control means (17B) for controlling the heating means (9) via the second control means, and controlling the second pump and the regulating valve via the second control means. It further has a second control function (13bB) for controlling the heating means in accordance with the control from the second control means, and the multi-function unit has the fifth flow path (h5) and the sixth flow path (h6). If it is not connected to Only the first control function of the first control function and the second control function is operated, and the multi-function unit is interposed between the heating means and the third pump in the fifth flow path. In the case of being connected and connected to the sixth flow path, the first control function and the second control function are activated.

In the hot water supply system (100C) according to the second aspect, the hot water supply system body (2) outputs a heating means control signal (s1) to the heating means (9) to control the heating means for the heating means. The multi-function unit (1) further includes first control means (13C) that operates with a heating capacity specified by a signal and operates the third pump (P3) with a predetermined discharge amount. The apparatus further includes second control means (17C) for controlling the pump (P1), the second pump (P2), and the regulating valve (5), and the second control means is configured such that the multi-function unit has the fifth flow path. The control signal for heating means is connected to the portion between the heating means (9) and the third pump (P3) in (h5) and connected to the sixth flow path (h6). When the heating means is stopped The control signal for the heating means to be relayed is changed so that the heating means is activated, the first and second pumps are activated, and the regulating valve is flowed on the heat exchanger side (α). Is controlled (S8).

Hot water supply system according to the third aspect is a hot water supply system according to the second aspect (100C), said second control means (17C), in the case of during operation of said heating means (9), the relay The heating capacity specified by the heating means control signal is changed to a higher heating capacity, the first pump (P1) is operated, and the second pump (P2) is made to be less than the predetermined discharge amount. The operation is performed with a large discharge amount, and the regulating valve (5) is controlled to a diversion ratio that ensures the flow on both the heat exchanger side (α) and the heating means side (S4).

In the hot water supply system (100D) according to the fourth aspect, the hot water supply system body (2) outputs a pump control signal (s2) to the third pump (P3) to control the third pump. A first control means (13D) for operating at a discharge amount specified by a signal and outputting a heating means control signal (s1) to the heating means to operate the heating means with a predetermined heating capacity; The multi-function unit (1) further includes second control means (17D) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5), and the second control means The multi-function unit is interposed and connected to a portion between the heating means and the third pump in the fifth flow path (h5) and is connected to the sixth flow path (h6), The heating means control signal and Relays a control signal for serial pump, in the case of stopping of the heating means, a control signal for the pump to the heating means control signal to said heating means both its relay by changing so as to operate to its relay Without change, the first pump and the second pump are operated, and the regulating valve is controlled to a diversion ratio that ensures a flow on the heat exchanger side (α) (T8).

Hot water supply system according to a fifth aspect is the hot water supply system according to the fourth aspect (100D), said second control means (17D), in the case of during operation of said heating means, said heating of the relay The control signal for the means is not changed, the discharge amount specified by the pump control signal relayed therewith is changed to a smaller discharge amount, the first pump (P1) is operated, and the pump before the change The second pump is operated with the discharge amount specified by the control signal for use, and the regulating valve has a diversion ratio that ensures the flow on both the heat exchanger side (α) and the hot water storage tank side (β). Control (T4).

In the hot water supply system (100E) according to the sixth aspect, the hot water supply system main body (2) includes sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11), and from the sensors. Based on the detection signal (s3), the heating means (9) and the third pump (P3) are controlled to operate the third pump at a predetermined discharge amount, and the heating means according to the contents of the detection signal. And a first control means (13E) that operates with a heating capacity, wherein the multi-function unit (1) includes the first pump (P1), the second pump (P2), and the regulating valve (5). The second control means further includes a second control means (17E), wherein the second control means is arranged such that the multi-function unit is interposed between the heating means and the third pump in the fifth flow path (h5). And connected And connected to the sixth flow path (h6), relays the detection signal, changes the relay detection signal so that the heating means is operated with a required heating capacity, and the first pump And the second pump is operated with a discharge amount larger than the predetermined discharge amount, and the regulating valve is operated on both the heat exchanger side (α) and the heating means side (β). The diversion ratio to be secured is controlled (U4, U8).

In the hot water supply system (100F) according to the seventh aspect, the heating means is based on a sensor (27) for detecting the remaining hot water amount or the remaining hot water temperature of the hot water storage tank (9) and a detection signal (s3) from the sensor. (9) and first control means for controlling the third pump (P3) to operate the heating means with a predetermined heating capacity and to operate the third pump with a discharge amount corresponding to the content of the detection signal ( 13F), and the multi-function unit (1) includes second control means (17F) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5). Further, the second control means includes the multi-function unit interveningly connected to a portion between the heating means and the third pump in the fifth flow path (h5) and the sixth flow path ( h6) The detection signal is relayed, the second pump is operated at a required discharge amount, the first pump P1 is operated, and the detection signal to be relayed is smaller than the required discharge amount by the third pump. The operation is changed so as to operate with the discharge amount, and the regulating valve is controlled to a flow dividing ratio that ensures the flow on both the heat exchanger side (α) and the heating means side (β) (V4, V8). It is.

The hot water supply system according to the eighth, ninth, eleventh, thirteenth, fifteenth, and eighteenth aspects includes the above-described multi-function unit (1P , 1Q, 1R, 1S, 1T, 1U ) and the multi-function unit. Hot water supply system (100P , 100Q, 100R, 100S, 100T, 100U ) including a hot water supply system main body ( 2K, 2N, 2L, 2M, 2P) connectable to the hot water system, and hot water flows into the hot water supply system main body A heating means (9) having an inlet (a7) and a hot water outlet (a8) for discharging hot water obtained by heating the hot water, a discharge outlet (a9) for discharging hot water therein, and hot water from the heating means A hot water storage tank (11) having a hot water inlet (a10) into which the hot water enters, a fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means, and the storage A sixth flow path (h6) that connects the hot water inlet of the tank and the hot water outlet of the heating means and the fifth flow path, and hot water from the discharge port of the hot water storage tank is supplied to the heating means side. A third pump (P3) for feeding to the first flow path, wherein the first connection port of the multi-function unit is provided in the fifth flow path at a portion between the third pump and the hot water storage tank. The multi-function unit can be connected and connected so that the third connection port of the multi-function unit is connected to the discharge port side of the hot water storage tank and is connected to the inlet side of the means. In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. So that it is connected to the There are those that are interposed can be connected.

In the hot water supply system (100Q) according to the eighth aspect, the hot water supply system body (2Q) has a first control function (15aB) for controlling the heating means (9) and the third pump (P3). The multi-functional unit (1Q) controls the first pump (P1) and the regulating valve (5), and the heating unit and the control unit (1Q) are controlled via the first control unit. Second control means (17Q) for controlling the third pump is further provided, wherein the first control means controls the regulating valve via the second control means and responds to the control from the second control means. And a second control function (13bQ) for controlling the heating means and the third pump, and the multi-function unit is connected to the fifth flow path (h5) and the sixth flow path (h6). If not Only the first control function of the first control function and the second control function is operated, and the multi-function unit is disposed between the third pump and the hot water storage tank (11) in the fifth flow path. In the case of being connected to the part and connected to the sixth flow path, the first control function and the second control function are activated.

In the hot water supply system (100R) according to the ninth aspect, the hot water supply system main body (2K) outputs a heating means control signal (s1) to the heating means (9) to cause the heating means to control the heating means. And a first control means (13K) for operating the third pump at a predetermined discharge amount by operating with the heating capacity specified in step (b) and outputting a pump control signal (s2) to the third pump (P3). The multi-function unit (1R) further comprises second control means (17R) for controlling the first pump (P1) and the regulating valve (5), and the second control means is provided with the multi-function unit. Is interposed and connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and is connected to the sixth flow path (h6). Control signal and the pom When the heating means and the third pump are stopped, the heating means control signal to be relayed is changed and relayed so that the heating means is activated and relayed. The pump control signal is changed and relayed so that the third pump operates, the first pump is operated, and the regulating valve is secured to the heat exchanger side (α). Control (W8).

Hot water supply system according to a tenth aspect is the hot water supply system according to a ninth aspect of (100R), said second control means (17R), in the case during operation of the heating means and the third pump, The heating means control signal and the pump control signal are relayed without change, the first pump is operated, and the regulating valve is connected to the heat exchanger side (α) and the heat pump heat source machine side (β). The flow rate is controlled so as to ensure both of the flows (W4).

In the hot water supply system (100S) according to the eleventh aspect, the hot water supply system main body (2N) outputs a heating means control signal (s1) to the heating means (9) so that the heating means (9) First control means (operating with heating capacity) and outputting a pump control signal (s2) to the third pump (P3) to operate the third pump with a discharge amount specified by the pump control signal ( 13N), the multi-function unit (1S) further includes second control means (17S) for controlling the first pump (P1) and the regulating valve (5), and the second control means includes: The multifunctional unit is interposed and connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and is connected to the sixth flow path (h6). , The control signal for the heating means And relaying the control signal for the pump, and when the heating means and the third pump are stopped, the control signal for the heating means to be relayed is changed and relayed so that the heating means operates. The pump control signal to be relayed is changed and relayed so that the third pump is operated, the first pump is operated, and the flow of the regulating valve to the heat exchanger side (α) is ensured. (Z8).

Hot water supply system according to a twelfth aspect is the hot water supply system (100S) of the first first aspect, the second control means (17S), said heating means (9) and said third pump (P3) Are relayed without changing the control signal for heating means (s1) and the control signal for pump (s2), the first pump (P1) is operated, and the regulating valve ( 5) is controlled to a diversion ratio that ensures the flow on both the heat exchanger side (α) and the heat pump heat source unit side (β) (Z4).

In the hot water supply system (100T) according to the thirteenth aspect, the hot water supply system body (2L) includes sensors (T1 to T5) for detecting the remaining hot water amount or the residual hot water temperature of the hot water storage tank (11), and the sensor. Based on the detection signal (s3), the heating means (9) and the third pump (P3) are controlled to operate the third pump at a predetermined discharge amount, and the heating means according to the contents of the detection signal. First control means (13L) that operates with a heating capacity, and the multi-function unit (1T) is a second control means for controlling the first pump (P1) and the regulating valve (5). 17T), and the second control means is configured such that the multi-function unit is interposed and connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank. Flow path (h ), Relaying the detection signal, and changing the detection signal to relay the heating means and the third pump when the heating means and the third pump are stopped and relays, and actuates the first pump is and the flow of the adjustment valve heat exchanger side (alpha) is controlled to flow ratio to be reserved (X8) ones.

Hot water supply system according to a fourteenth aspect is the hot water supply system in accordance with aspects of the 1 3 (100T), said second control means (17T), in the case of during operation of said heating means and said third pump The detection signal to be relayed is relayed without change, the first pump is operated, and the regulating valve flows on both the heat exchanger side (α) and the hot water tank side (β). Control is made to ensure a diversion ratio (X4).

In the hot water supply system (100U) according to the fifteenth aspect, the hot water supply system main body (2M) includes sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11), and from the sensors. Based on the detection signal (s3), the heating means (9) and the third pump (P3) are controlled, the heating means is operated with a predetermined heating capacity, and the third pump is operated according to the contents of the detection signal. First control means (13M) that operates with the discharged amount, and the multi-function unit (1U) is a second control means for controlling the first pump (P1) and the regulating valve (5). 17U), and the second control unit is configured such that the multi-function unit is interposed and connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank. Flow path (h ), Relays the detection signal, and when the heating means and the third pump are stopped, information on the remaining hot water amount or the remaining hot water temperature contained in the relayed detection signal is provided on the heating means. And the relay is changed so that the third pump is operated, and the first pump is operated, and the regulating valve is controlled to a diversion ratio that ensures the flow on the heat exchanger side (α) ( Y8).

Hot water supply system according to a sixteenth aspect is the hot water supply system (100 U) according to the embodiment of the first 5, the second control means (17U), said heating means (9) and said third pump (P3) Is relayed without changing the information of the remaining hot water amount or the remaining hot water temperature contained in the relayed detection signal, and the regulating valve (5) is connected to the heat exchanger side (α) and the The flow rate is controlled (Y4) so that both flows on the heating means side (β) are ensured.

In the hot water supply system (100P), in accordance with aspects of the hot water supply system according to a seventeenth aspect (100), or 18, wherein the hot water supply system body (2,2P), said heating means (9) and said third pump (P3 ) And a second control function (13b, 13bP) for controlling the first pump (P1) and the regulating valve (5), and the multi-function unit (1 , 1P) is not connected to the fifth flow path (h5) and the sixth flow path (h6), only the first control function of the first and second control functions is operated. When the multi-function unit is connected to the fifth flow path and the sixth flow path, the multi-function unit further includes control means (13, 13P) for operating the first and second control functions. is there.

A hot water supply system according to the nineteenth and twenty-ninth aspects is a hot water supply system (100G , 100H ) including the above-described multifunctional unit (1 , 1I ) and a hot water supply system body (2) connectable to the multifunctional unit. The multifunction unit includes a second pump (P2) disposed in a portion between the first connection port (a1) and the regulating valve (5) in the first flow path (h1). The hot water supply system main body further includes a heating means (9) having an inlet (a7) through which hot water flows in and a hot water outlet (a8) through which hot water obtained by heating the hot water is heated, and hot water inside thereof. A hot water storage tank (11) having a discharge outlet (a9) for discharging and a hot water inlet (a10) for hot water discharged from the heating means; the discharge port of the hot water storage tank; and the inlet of the heating means. The fifth flow path ( h5) and a sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means, and the fifth flow path includes the first channel of the multifunction unit. The multi-function unit is installed such that a connection port is connected to the inlet side of the heating means and the third connection port of the multi-function unit is connected to the discharge port side of the hot water storage tank. The second passage port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is connected to the hot water storage. The multi-function unit can be connected and connected so as to be connected to the hot water inlet side of the tank.

In the hot water supply system (100H) according to the nineteenth aspect, the hot water supply system body (2) further comprises first control means (13H) having a first control function (13a) for controlling the heating means (9). The multi-function unit (1) controls the first pump (P1), the second pump (P2) and the regulating valve (5), and the heating means (9) via the first control means. The first control means controls the second pump and the regulating valve via the second control means, and controls the second control means (17B). In response, when the second control function (13b) for controlling the heating means is further provided and the multi-function unit is not connected to the fifth flow path (h5) and the sixth flow path (h6), The first control function and the first control function; When only the first control function of the control functions is operated and the multi-function unit is connected to the fifth flow path and the sixth flow path, the first control function and the second control It activates the function.

The hot water supply system according to the twentieth, twenty-first, twenty-third, twenty-fifth, twenty-seventh and thirtieth aspects includes the above-mentioned multifunctional unit (1I , 1J, 1K, 1L, 1M, 1N ) and the multifunctional unit. A hot water supply system (100I , 100J, 100K, 100L, 100M, 100N ) including a hot water supply system main body (2I , 2J, 2K, 2L, 2M, 2N ) that can be connected, wherein the multi-function unit includes the third function unit. The hot water supply system main body (2I) is further provided with a second pump (P2) disposed in the flow path (h3) and for sending hot water flowing in from the third connection port (a3) to the regulating valve (5) side. Is a heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for hot water obtained by heating the hot water, and a discharge port (a9) for discharging hot water therein. And the heating hand A hot water storage tank (11) having a hot water inlet (a10) into which the hot water discharged from the hot water enters, a fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means, A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means and the fifth flow path, and hot water from the discharge port of the hot water storage tank is supplied to the heating means. A third pump (P3) for feeding to the side, wherein the first connection port of the multi-function unit is connected to the fifth flow path at a portion between the third pump and the hot water storage tank. The multi-function unit can be connected and connected so that the third connection port of the multi-function unit is connected to the discharge port side of the hot water storage tank while being connected to the inlet side of the heating means. In the sixth flow path, the multifunction unit The multi-function unit is configured such that the second connection port is connected to the hot water outlet side of the heating means and the fourth connection port of the multi-function unit is connected to the hot water inlet side of the hot water storage tank. Is capable of interfacing connection.

In the hot water supply system (100J) according to the twentieth aspect, the hot water supply system body (2J) has a first control function (13aB) for controlling the heating means (9) and the third pump (P3). The multi-function unit (1J) controls the first pump (P1), the second pump (P2) and the regulating valve (5), and further includes a control means (13J). And further comprising a second control means (17J) for controlling the heating means (9) and the third pump via the second control means, wherein the first control means comprises the second pump and the adjustment via the second control means. And a second control function (13bJ) for controlling the heating means and the third pump in response to control from the second control means, wherein the multi-function unit includes the fifth flow path. (H5 And, when not connected to the sixth flow path (h6), only the first control function of the first control function and the second control function is activated, and the multi-function unit is connected to the fifth flow function. The first control function and the second control function when connected to the portion of the passage between the third pump and the hot water storage tank (11) and connected to the sixth flow path. Is to operate.

In the hot water supply system (100K) according to the twenty-first aspect, the hot water supply system main body (2K) outputs a heating means control signal (s1) to the heating means (9) to cause the heating means to control the heating means. And a first control means (13K) for operating the third pump at a predetermined discharge amount by operating with the heating capacity specified in step (b) and outputting a pump control signal (s2) to the third pump (P3). The multi-function unit (1K) further includes second control means (17K) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5); The control means is configured such that the multi-function unit is interposed and connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and connected to the sixth flow path (h6). The heating hand connected Relay the control signal for the pump and the control signal for the pump, and when the heating means and the third pump are stopped, the control signal for the heating means to be relayed is changed so that the heating means is operated and relayed. In addition, the control signal for the relay relayed is changed and relayed so that the third pump operates, the first pump is operated, the second pump is stopped, and the regulating valve (5 ) Is controlled so as to ensure the flow on the heat exchanger side (α) (W8).

Hot water supply system in accordance with aspects of the 22 is a hot water supply system according to the second 1 aspect (100K), said second control means (17K), in the case of during operation of said heating means and said third pump Relay the control signal for heating means and the control signal for pump without changing, and operate the first pump, and operate the second pump with a discharge amount smaller than the predetermined discharge amount, And the said control valve (5) is controlled to the shunt ratio by which the flow of both the said heat exchanger side ((alpha)) and the heat pump heat source machine side ((beta)) is ensured (W4).

In the hot water supply system (100N) according to the twenty-third aspect, the hot water supply system main body (2N) outputs a heating means control signal (s1) to the heating means (9) so that the heating means (9) First control means (operating with heating capacity) and outputting a pump control signal (s2) to the third pump (P3) to operate the third pump with a discharge amount specified by the pump control signal ( 13N), and the multi-function unit (1N) further includes second control means (17N) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5). The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and the sixth flow path. (H6) The control signal for heating means and the control signal for pump are relayed, and when the heating means and the third pump are stopped, the control signal for heating means relayed is changed so that the heating means operates. And the relay control signal for the pump is changed and relayed so that the third pump is operated, the first pump is operated, the second pump is stopped, and the adjustment is performed. The valve is controlled (Z8) so that the flow on the heat exchanger side (α) is secured.

Hot water supply system according to a 24th aspect of the is a hot water supply system according to the second third aspect (100 N), said second control means (17N), said heating means (9) and said third pump (P3) In this case, the heating means control signal (s1) and the pump control signal (s2) are relayed without change, and the first pump (P1) is operated, and the second pump (P2) is operated with a discharge amount smaller than the discharge amount specified by the pump control signal, and the regulating valve (5) is operated on both the heat exchanger side (α) and the heat pump heat source unit side (β). The flow is controlled to a diversion ratio that ensures the flow (Z4).

In the hot water supply system (100L) according to the twenty-fifth aspect, the hot water supply system body (2L) includes sensors (T1 to T5) for detecting the remaining hot water amount or the residual hot water temperature of the hot water storage tank (11), and the sensor. Based on the detection signal (s3), the heating means (9) and the third pump (P3) are controlled to operate the third pump at a predetermined discharge amount, and the heating means according to the contents of the detection signal. And a first control means (13L) that operates with a heating capacity, wherein the multi-function unit (1L) includes the first pump (P1), the second pump (P2), and the regulating valve (5). The second control means further includes a second control means (17L), wherein the multi-function unit is interposed between the third pump and the hot water storage tank in the fifth flow path (h5). Connected Together with the sixth flow path (h6), relays the detection signal, and when the heating means and the third pump are stopped, the detection signal to be relayed is sent to the heating means and the second 3 pump is changed so as to operate relays, and actuates the first pump and stops the second pump, and the regulating valve the flow of the heat exchanger side (alpha) is ensured The flow ratio is controlled (X8).

A hot water supply system according to a twenty-sixth aspect is the hot water supply system (100L) according to the twenty- fifth aspect, wherein the second control means (17L) is operating the heating means and the third pump. The relay relays the detection signal without change, operates the first pump, operates the second pump with a discharge amount smaller than the predetermined discharge amount, and controls the adjustment valve. The flow rate is controlled (X4) so that the flow on both the heat exchanger side (α) and the hot water storage tank side (β) is ensured.

In the hot water supply system (100M) according to the twenty-seventh aspect, the hot water supply system main body (2M) includes sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11), and from the sensors. Based on the detection signal (s3), the heating means (9) and the third pump (P3) are controlled, the heating means is operated with a predetermined heating capacity, and the third pump is operated according to the contents of the detection signal. And a first control means (13M) for operating with a discharged amount, wherein the multi-function unit (1M) includes the first pump (P1), the second pump (P2), and the regulating valve (5). The second control means further includes a second control means (17M), wherein the multi-function unit is interposed in a portion between the third pump and the hot water storage tank in the fifth flow path (h5). Connected Together with the sixth flow path (h6), relays the detection signal, and when the heating means and the third pump are stopped, the amount of remaining hot water or the remaining hot water contained in the relayed detection signal Hot water temperature information is changed and relayed so that the heating means and the third pump operate, the first pump is operated, the second pump is stopped, and the regulating valve is exchanged with the heat. The diversion ratio is controlled to ensure the flow on the vessel side (α) (Y8).

A hot water supply system according to a twenty- eighth aspect is the hot water supply system (100M) according to the twenty-seventh aspect, wherein the second control means (17M) includes the heating means (9) and the third pump (P3). In the case of the operation, the relay is performed without changing the information of the remaining hot water amount or the remaining hot water temperature included in the detection signal to be relayed, the first pump (P1) is operated, and the relay is relayed. The second pump (P2) is operated with a discharge amount smaller than the discharge amount corresponding to the information of the remaining hot water amount or the remaining hot water temperature included in the signal, and the adjustment valve (5) is moved to the heat exchanger side (α ) And the diversion ratio that secures the flow on both the heating means side (β) (Y4).

In the hot water supply system (100 J) according to the hot-water supply system (100G), or the thirtieth aspect according to the 29 embodiment of the hot water supply system body (2), the first control function for controlling the heating means (9) (13a ) And a second control function (13b, 13bI) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5), and the multi-function unit (1, 1I) Are not connected to the fifth flow path (h5) and the sixth flow path (h6), only the first control function of the first and second control functions is operated, When the functional unit is interposed and connected to the fifth flow path and the sixth flow path, it further includes control means (13G, 13I) for operating the first and second control functions.

In the first to thirtieth aspects, the hot water supply system main body (2 , 2I, 2J, 2K, 2L, 2M, 2N, 2P, 2Q ) (that is, the existing hot water supply system) is connected to the first and second connection ports (a1, a2). ) Is connected to the outlet (a8) and the inlet (a7) of the heating means (9), and the fifth and sixth connection ports (a5, a6) are connected to the outlet for heating fluid of the predetermined heater (7). (A11) and the inflow port (a12) are connected, and the discharge port (a9) and the hot water inlet (a10) of the hot water storage tank (11) of the existing hot water supply system are connected to the third and fourth connection ports (a3, a4). Thus, the multi-function unit can be retrofitted to the hot water supply system main body.

According to the first, second , fourth, sixth, seventh and seventeenth aspects, the multi-function unit (1 , 1I, 1J, 1K, 1L, 1M, 1N, 1P, 1Q, 1R, 1S, 1T , 1U ) can be provided later. Further, since the third pump (P3) is provided, even when the multi-function unit (1) is connected to the fifth flow path (h5), the hot water in the hot water storage tank (11) is stably heated (9). ) Side.

According to the first aspect, the multi-function unit (1) is provided with the second control means (17B), and the multi-function unit is controlled by the second control means, so that the hot water supply system body (2) The burden of controlling the multifunction unit in the first control means (13B) can be reduced.

According to the second aspect, by changing the content of the heating means control signal (s1) in the multifunction unit (1), the operation of the multifunction unit and the operation of the hot water supply system body (2) are coordinated. In connecting the multi-function unit to the hot water supply system body, the first controller (13C) of the hot water system body can be used as it is without changing the design.

According to the 3rd aspect, the effect similar to a 2nd aspect is acquired.

According to the fourth aspect, the operation of the multifunction unit and the operation of the hot water supply system body (2) are coordinated by changing the content of the heating means control signal (s1) in the multifunction unit (1). In connecting the multi-function unit to the hot water supply system body, the first controller (13D) of the hot water system body can be used as it is without changing the design.

According to the fifth aspect, by changing the content of the pump control signal (s2) in the multi-function unit (1), the operation of the multi-function unit and the operation of the hot water supply system body (2) are coordinated. When connecting the multi-function unit to the hot water supply system body, the first controller (13D) of the hot water system body can be used as it is without changing the design.

According to the sixth or seventh aspect, the operation of the multifunction unit and the operation of the hot water supply system body (2) are coordinated by changing the content of the detection signal (s3) in the multifunction unit (1). In connecting the multi-function unit to the hot water supply system body, the first controller (13E) of the hot water system body can be used as it is without changing the design.

According to the eighth, ninth, eleventh, thirteenth, fifteenth and eighteenth aspects, in addition to obtaining the same effects as the first, second , fourth, sixth, seventh and seventeenth aspects, Since the second pump is omitted, the cost can be reduced accordingly.

According to the eighth aspect, the same effect as in the first aspect is obtained.

According to the ninth aspect, by changing the contents of the heating means detection signal (s1) and the pump control signal (s2) in the multi-function unit (1K), the operation of the multi-function unit and the hot water supply system main body (2K Therefore, when connecting the multi-function unit to the hot water supply system body, the first control device (13K) of the hot water system body can be used as it is without changing the design.

According to a first 0 embodiment of the, by using a detection signal for a heating means (s1) and the pump control signals (s2) in the multi-functional unit (1K), the operation and the hot water supply system body of the multi-functional unit (2K) Therefore, when the multi-function unit is connected to the hot water supply system body, the first control device (13K) of the hot water system body can be used as it is without changing the design.

According to a first 1 of the embodiment, the same effect as the ninth aspect.

According to the first and second embodiment, the same effect as the first 0 embodiment of.

According to the 1st 3rd , 1st 4th and 1st 5th aspects, the same effect as the sixth aspect is obtained.

According to an aspect of the first 6, by utilizing the detection signal (s3) in the multi-functional unit (1U), so to coordinate the operations of the hot water supply system body of the multi-functional unit (2M), water heater system body In connecting the multi-function unit to the first control device (13M) of the hot water supply system main body, it can be used as it is without changing the design.

According to the seventeenth and eighteenth aspects, the control means (13) of the hot water supply system body (2 , 2P ) is provided with the second control function (13b , 13bP ) for the multi-function unit. There is no need to provide means. In addition, since the second control function operates in the control means only when the multi-function unit is connected to the hot water supply system main body, the operation burden on the control means can be reduced when the multi-function unit is not connected to the hot water supply system main body.

According to the nineteenth and twenty-ninth aspects, in addition to obtaining the same effects as the first, second , fourth, sixth, seventh, and seventeenth aspects, the fifth pipe (h5) of the hot water supply system body (2) ) Pump (P3) is omitted, which can contribute to cost reduction.

According to the nineteenth aspect, the same effect as in the first aspect is obtained.

According to the twentieth, twenty- first, twenty- third, twenty- fifth, twenty-seventh and thirtieth aspects, in addition to obtaining the same effects as the first , second , fourth, sixth, seventh and seventeenth aspects, Since the second pump (P2) is disposed in the third flow path (h3), the multi-function unit (1I) is connected to the fifth flow path (h5) of the hot water supply system body (2I). However, the hot water in the hot water storage tank (11) can be stably sent to the heating means (9) side.

According to a second 0 aspect, the same effect as the first embodiment.

According to a second one aspect, obtaining the same effect as the ninth aspect.

According to a second second aspect, the same effect as the first 0 embodiment of.

According to the second third aspect, the same effect as the ninth aspect.

According to an aspect of the second 4, the same effect as the first 0 embodiment of.

According to an aspect of the second 5, to obtain the same effect as the sixth aspect.

According to the twenty- sixth aspect, the same effect as in the sixteenth aspect is obtained.

According to the twenty-seventh aspect, the same effect as in the sixth aspect is obtained.

According to a twenty-eighth aspect, the same effect as the embodiment of the first 6.

According to the 29th and 30th aspects, the same effect as in the 17th and 18th aspects is obtained.

It is a block schematic diagram of the hot water supply system which concerns on 1st-6th embodiment. It is a composition schematic diagram of the hot-water supply system main part of the 1st-a 7th embodiment. It is a block schematic diagram of the control device of the first, ninth and fifteenth embodiments. It is a structure schematic of the control apparatus of 2nd, 8th and 10th embodiment. It is a block schematic diagram of the 2nd control device of a 3rd embodiment. It is operation | movement explanatory drawing of the 2nd control apparatus of 3rd Embodiment. It is a structure schematic diagram of the 1st and 2nd control apparatus of 4th and 12th embodiment. It is operation | movement explanatory drawing of the 2nd control apparatus of 4th Embodiment. It is the structure schematic of the 1st and 2nd control apparatus of 5th, 6th, 13th, and 14th embodiment. It is operation | movement explanatory drawing of the 2nd control apparatus of 5th Embodiment. It is operation | movement explanatory drawing of the 2nd control apparatus of 6th Embodiment. It is a block schematic diagram of the hot water supply system which concerns on 7th and 8th embodiment. It is a block schematic diagram of the hot water supply system which concerns on 9th-14th embodiment. It is a block schematic diagram of the hot water supply system main body of 9th-18th embodiment. It is a block schematic diagram of the 1st and 2nd control apparatus of 11th and 12th embodiment. It is operation | movement explanatory drawing of the 2nd control apparatus of 11th and 12th embodiment. It is operation | movement explanatory drawing of the 2nd control apparatus of 13th Embodiment. It is operation | movement explanatory drawing of the 2nd control apparatus of 14th Embodiment. It is a block schematic diagram of the hot water supply system which concerns on 15th-20th embodiment. It is a structure schematic of the control apparatus of 15th Embodiment. It is the structure schematic of the 1st and 2nd control apparatus of 16th Embodiment. It is a structure schematic diagram of the 1st and 2nd control apparatus of 17th Embodiment. It is a structure schematic diagram of the 1st and 2nd control apparatus of 18th Embodiment. It is a structure schematic diagram of the 1st and 2nd control apparatus of 19th and 20th embodiment.

<First Embodiment>
The hot water supply system 100 includes a hot water system main body 2 shown in FIG. 2 and a multifunctional unit 1 and a heater 7 that can be connected to the hot water system main body 2 as shown in FIG.

  As shown in FIG. 2, the hot water supply system body 2 includes a heat pump heat source unit 9 (heating means), a hot water storage tank 11, a pump (third pump) P3, and a control device 13 (FIG. 3, control means). Yes.

  The hot water storage tank 11 is formed in a hollow cylindrical shape, for example. A discharge port 9 a is provided in the lower part (for example, the bottom) of the hot water storage tank 11, and a hot water inlet a 10 is provided in the upper part (for example, the ceiling) of the hot water storage tank 11. A pipe h5 (fifth flow path) from a later-described inlet a7 of the heat pump heat source unit 9 is connected to the discharge port a9, and a hot water outlet a10 is connected to a later-described outlet tap a8 of the heat pump heat source unit 9. A pipe h6 (sixth flow path) is connected. Further, a hot water outlet a13 is provided at an upper portion (for example, a ceiling portion) of the hot water storage tank 11, and a pipe h7 leading to the hot water supply portion 15 such as a currant is connected to the hot water outlet a13. Further, a water supply port a16 is provided in a lower part (for example, the bottom) of the hot water storage tank 11, and a water supply pipe h14 for supplying water such as tap water to the hot water storage tank 11 is disposed in the water supply port a16. Yes.

  On the side of the hot water storage tank 11, for example, the temperature of the hot water in the hot water storage tank 11 (that is, hot water heated by the heat pump heat source device 9) or hot water (medium / low temperature hot water or water having a lower temperature than the high temperature hot water). A plurality of temperature sensors T <b> 1 to T <b> 5 for detecting the temperature of the hot water storage tank 11 are arranged at intervals from the upper part toward the lower part.

  The pump P3 sends hot water from the hot water storage tank 11 to the heat pump heat source unit 9 side, and is arranged in a pipe h5 (more specifically, a pipe h5b described later).

  The heat pump heat source unit 9 heats the hot water flowing into the inflow port a7 and discharges hot water obtained by the heating from the hot water outlet a8. The heat pump heat source unit 9 performs heating using, for example, a refrigeration cycle, and includes a compressor 9a, a heat exchanger 9b, an expansion valve 9c, and an evaporator 9d.

  The heat exchanger 9b flows out the heating medium flowing from the inlet a14 (hereinafter referred to as medium) from the outlet a15 and flows hot water flowing from the inlet a7 out of the outlet a8. The hot water is heated by the medium by causing heat exchange between the hot water and the hot water.

  The inlet a7 of the heat exchanger 9b is connected to the discharge port a9 of the hot water storage tank 11 via the pipe h5, and the hot water outlet a8 of the heat exchanger 9b is connected to the hot water inlet a10 of the hot water storage tank 11 via the pipe h6. It is connected to the.

  Note that the pipe h5 is configured by, for example, a plurality (here, two) of pipes h5a and h5b that are separably connected to each other, and one end of the pipe h5a is connected to the inflow port a7, and the pipe h5b Is connected to the discharge port a9, and the multi-function unit 1 can be connected to the connecting portion N3 of the pipes h5a and h5b as described later. Also, the pipe h6 is configured by, for example, a plurality of (here, two) pipes h6a and h6b that are separably connected to each other, and one end of the pipe h6a is connected to the outlet port a8, and the pipe h6b One end port is connected to the hot water inlet a10, and the multi-function unit 1 can be connected to the connecting portion N4 of the pipes h6a and h6b in an intervening manner as will be described later.

  The compressor 9a and the inflow port a14 of the heat exchanger 9b are connected to each other via a pipe h8. Further, the outlet a15 of the heat exchanger 9b and the expansion valve 9c are connected to each other via a pipe h9. The expansion valve 9c and the evaporator 9d are connected to each other via a pipe h10. The evaporator 9d and the compressor 9a are connected to each other through a pipe h11.

  In the heat pump heat source unit 9, the medium is compressed to a high temperature by the compressor 9a. Then, in the heat exchanger 9b, heat exchange is performed between the high temperature medium and hot water from the inflow port a7, the hot water is heated by the medium, and the heated hot water (high temperature hot water is discharged from the outlet a8. ) Is discharged, and the medium flows out from the outlet a15. The medium is expanded and depressurized by the expansion valve 9c, and the depressurized medium absorbs ambient heat and evaporates by the evaporator 9d, and is sent to the compressor 9a. By repeating this cycle, the hot water flowing in from the inlet a7 is heated to a predetermined target temperature and discharged from the hot water outlet a8 by the heat exchanger 9b.

  The multifunctional unit 1 is a multifunctional unit that can be connected to the hot water supply system body 2 to add a heating function. As shown in FIG. 1, the multi-function unit 1 includes first to sixth connection ports a1 to a6, first to fourth flow paths h1 to h4, a heat exchanger 3, a regulating valve 5, a first Second pumps P1 and P2 are provided. The multi-function unit 1 can be connected to the heater 7.

  The first connection port a1 is a connection port to which one end port of the pipe h5a from the inflow port a7 of the heat exchanger 9a can be connected. The second connection port a2 is a connection port to which one end port of the pipe h6a from the hot water outlet a8 of the heat exchanger 9a can be connected. The third connection port a3 is a connection port to which one end port of the pipe h5b from the discharge port a9 of the hot water storage tank 11 can be connected. The fourth connection port a4 is a connection port to which one end port of the pipe h6b from the hot water inlet a10 of the hot water storage tank 11 can be connected. The fifth connection port a5 is a connection port to which one end port of one of the piping h12 from the discharge port a11 of the heater 7 and the piping h13 from the inflow port a12 can be connected. The sixth connection port a6 is a connection port to which one end port of the other pipe of the pipes h121 and h13 can be connected. In FIG. 1, the fifth connection port a5 is connected to one end port of the pipe h12, and the sixth connection port a6 is connected to one end port of the pipe h13.

  The first flow path h1 is a flow path that connects the first connection port a1 and the second connection port a2. The second flow path h2 is a flow path that connects the fifth connection port a5 and the sixth connection port a6. In addition, the heat exchanger 3 is interposed and connected to each flow path h1, h2, as will be described later. The third flow path h3 is a flow path that connects the third connection port a3 in a branched manner to a portion N1 between the heat exchanger 3 and the first connection port a1 in the first flow path h1. Hereinafter, the part N1 is referred to as a branch point N1. The fourth flow path h4 is a flow path that connects the fourth connection port a4 in a branched manner to a portion N2 between the heat exchanger 3 and the second connection port a2 in the first flow path h1. Hereinafter, the part N2 is referred to as a branch point N2.

  The heat exchanger 3 is connected to each of the flow paths h1 and h2, and flows through the first flow path h1 (that is, the high-temperature medium from the heat exchanger 9b) and the second flow path h2. Heat exchange is performed with the fluid (heating liquid from the heater 7), and the liquid flowing through the second flow path h2 is heated by the liquid flowing through the first flow path h1.

  The regulating valve 5 is disposed at the branch point N1 and adjusts the regulating valve 5 from the heat exchanger 3 by adjusting the flow on the heat exchanger side α and the flow on the hot water storage tank side β to a required diversion ratio. The flow rate of hot water flowing to the heat exchanger 9b through the heat storage tank 11 and the flow rate of hot water flowing from the hot water storage tank 11 to the heat exchanger 9b via the regulating valve 5 are controlled. The regulating valve 5 may be disposed at the branch point N2 instead of the branch point N1. In this case, the regulating valve 5 has a flow rate of hot water flowing from the outlet port a8 of the heat exchanger 9b to the heat exchanger 3 via the regulating valve 5 (that is, the branch point N2), and an outlet port a8 of the heat exchanger 9b. The flow rate of hot water flowing into the hot water storage tank 11 is controlled via the regulating valve 5 (that is, the branch point N2).

  The first pump P1 is disposed in the second flow path h2 (for example, a portion between the fifth connection port a5 and the heat exchanger 3 in the second flow path h2), and flows in from the fifth connection port a5. The liquid is sent out to the sixth connection port a6 side. The 2nd pump P2 is arrange | positioned in the part between the 1st connection port a1 and the adjustment valve 5 in the 1st flow path h1, and sends out the hot water from the adjustment valve 5 to the 1st connection port a1 side.

  For example, the heater 7 circulates the heating liquid heated by the heat exchanger 3 through a pipe 7a disposed below the floor of a room to be heated in a predetermined building, thereby causing the floor to flow. It is something that warms up. The heater 7 includes a pipe 7a disposed below the floor, an inlet a11 to which one end of the pipe 7a is connected, and an outlet a12 to which the other end of the pipe 7a is connected. .

  The control device 13 controls the heat pump heat source unit 9, the pump P3, and the multi-function unit 1, and as shown in FIG. 3, the first and second control functions 13a and 13b, the operation input unit 13c, and the connection unit 13d, a remaining hot water amount detector 13e, and a changeover switch 13f. The first and second control functions 13a and 13b constitute a control unit.

  The operation input unit 13c receives an operation input for operating / stopping the multi-function unit 1 from the operator. The operation input unit 13 c is provided in the hot water supply system main body 2, but may be provided in the multi-function unit 1. The connecting portion 13d is detachably connected to one end of each control wiring from the multifunction unit 1 (that is, the first pump P1, the second pump P2, and the regulating valve 5). By connecting the control wirings of these components P1, P2, and 5 to the connecting portion 13d, each of these components can be controlled by the control device 13. In addition, as the means for the connection that can be retrofitted, for example, a rod-like terminal is connected to one end of each control wiring, and a cylindrical terminal into which the rod-like terminal can be removably inserted is arranged in the connecting portion 13d. Alternatively, a U-shaped terminal may be connected to one end of each control wiring, and a fastening member such as a screw for fastening the U-shaped terminal may be disposed in the connecting portion 13d. Each control wiring for controlling the heat pump heat source unit 9 and the pump P3 is connected to the control device 13 in advance.

  The remaining hot water amount detection unit 13e detects the amount of hot water stored in the hot water storage tank 11 (remaining hot water amount) based on the detected temperatures of the temperature sensors T1 to T5. For example, when the detected temperature of each temperature sensor T1 to T3 is 90 ° C. and the detected temperature of each temperature sensor T4 to T5 is 40 ° C., the remaining hot water amount detection unit 13e determines the remaining hot water amount of the hot water tank 11 as the ceiling of the hot water tank 11 It is detected that the amount is from the position to the position of the temperature sensor T3.

  The first control function 13a is a function for controlling the heat pump heat source unit 9 and the pump P3 (that is, the component on the hot water supply system main body 2 side), and the second control function 13b is the first pump P1, the second pump P2, and the adjustment. This is a function for controlling the valve 5 (that is, the component on the multifunctional unit 1 side), and the changeover switch 13f is, for example, a manual switch, and the first control function 13a among the first and second control functions 13a and 13b. Is a switch for switching whether to operate only the first or second control function 13a, 13b.

  More specifically, when the multifunction unit 1 is not connected to the hot water supply system body 2 as shown in FIG. 2, when only the first control function 13a is operated by the changeover switch 13f, the first control function 13a is The heat pump heat source unit 9 and the pump P3 are controlled according to the detection result of the remaining hot water amount detection unit 13e, thereby controlling the heating of the hot water in the hot water storage tank 11. More specifically, the first control function 13a operates the heat pump heat source unit 9 and the pump P3 when the remaining hot water amount detected by the remaining hot water amount detection unit 13e is equal to or less than the starting remaining hot water amount. 2, the hot water in the hot water storage tank 11 circulates in the order of a9 → P3 → a7 → 9b → a8 → a10 and is heated by the heat exchanger 9b, whereby the hot water in the hot water storage tank 11 is heated. . On the other hand, the first control function 13a stops the heat pump heat source unit 9 and the pump P3 when the remaining hot water amount detected by the remaining hot water amount detection unit 13e is equal to or larger than the stopped remaining hot water amount, thereby heating the hot water in the hot water storage tank 11. Is stopped. The stop remaining hot water amount is a value set higher than the startup remaining hot water amount.

  On the other hand, when the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1, when both the first and second control functions 13a and 13b are operated by the changeover switch 13f, the remaining hot water amount detection unit In accordance with the detection result of 13c, the first control function 13a operates the heat pump heat source unit 9 and the pump P3, and the second control function 13b controls the second pump P2 and the control valve 5, and thereby in the hot water storage tank 11 Control hot water heating. More specifically, when the remaining hot water amount detected by the remaining hot water amount detection unit 13e is equal to or less than the startup remaining hot water amount, the first control function 13a activates the heat pump heat source unit 9 and the pump P3, and the second control function 13b The second pump P2 is operated, and the control valve 5 is controlled so that the heat exchanger side α is fully closed and the hot water storage tank side β is fully opened. 1, hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 and is heated by the heat exchanger 9b. The hot water is heated. On the other hand, when the remaining hot water amount detected by the remaining hot water amount detection unit 13e is equal to or larger than the stopped remaining hot water amount, the first control function 13a stops the heat pump heat source unit 9 and the pump P3 and the second control function 13b activates the second pump P2. Thus, the heating of the hot water in the hot water storage tank 11 is stopped.

  In addition, when the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1, the first control function 13 a controls the heat pump heat source unit 9 according to the input of the heating operation to the operation input unit 13 c. At the same time, the second control function 13b controls the first and second pumps P1 and P2 and the regulating valve 5, thereby controlling the heater 7. More specifically, when an instruction to start heating is input to the operation input unit 13c, the first control function 13a activates the heat pump heat source unit 9 and stops the pump P3, and the second control function 13b Then, the second pumps P1 and P2 are operated, and the regulating valve 5 is controlled to a diversion ratio that ensures the flow on the heat exchanger side α (for example, the heat exchanger side α is fully open and the hot water storage tank side β is fully closed). To be controlled). As a result, the hot water in the heat exchanger 3 circulates in the order of 3 → 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat exchanger 9b, and the heating liquid in the heater 7 is 7a. → a11 → a5 → P1 → 3 → a6 → a12 → 7a In this order, the heating liquid is heated by the heated hot water in the heat exchanger 3, and the heated heating liquid circulates in the pipe 7a. Thus, the heater 7 performs heating. On the other hand, when an instruction to stop heating is input to the operation input unit 13c, the first control function 13a stops the heat pump heat source unit 9 and the second control function 13b stops the first and second pumps P1 and P2, Thereby, the heater 7 is stopped.

  In addition, when the hot water in the hot water storage tank 11 is heated (the former) and the heater 7 is heated (the latter), the regulating valve 5 is on the heat exchanger side when only the former is performed. If α is fully closed and the hot water tank side β is fully open and only the latter is performed, the heat exchanger side α is fully open and the hot water tank side β is fully closed, both the former and the latter Is performed, the regulating valve 5 is controlled to a predetermined diversion ratio so as to ensure the flow on both the heat exchanger side α and the hot water tank side β.

  When adjusting the temperature of the heating by the heater 7, when a desired heating temperature is set and input to the operation input unit 13 c, the second control function 13 b causes the first pump P <b> 1 to change according to the set and input heating temperature. The amount of discharge is controlled, and thereby the temperature of the heater 7 is adjusted.

  Hereinafter, for convenience of explanation, an aspect in which the multifunction unit 1 is not connected to the hot water supply system body 2 as shown in FIG. 2 is referred to as a first aspect, and an aspect in which the multifunction unit 1 is connected to the hot water supply system body 2 as in FIG. This is called the second aspect.

  Next, how to set to the first mode and how to change the setting from the first mode to the second mode will be described.

  First, to set to the first mode, as shown in FIG. 2, the discharge port a9 of the hot water storage tank 11 and the inflow port a7 of the heat exchanger 9b are connected by the pipe h5, and the hot water storage tank 11 is connected by the pipe h6. The hot water inlet a10 and the hot water outlet a8 of the heat exchanger 9b are connected. Then, the selector switch 13f is switched so that only the first control function 13a of the first and second control functions 13a and 13b operates. Thus, as described above, the control device 13 controls the heat pump heat source unit 9 and the pump P3 in accordance with the detection results of the temperature sensors T1 to T5, so that the hot water storage tank corresponds to the remaining hot water amount in the hot water storage tank 11. The hot water in 11 is heated.

  Next, in order to change from the first mode to the second mode, as shown in FIG. 1, the first connection port a1 of the multi-function unit is connected to the pipe h5a (ie, at the connection point N3 (FIG. 2) of the pipes h5a and h5b. The multi-function unit 1 is connected and connected to the pipe h6a so that the first connection port a3 of the multi-function unit is connected to the pipe h5b (that is, the discharge port a9 side). , H6b at the connection point N4 (FIG. 2), the second connection port a2 of the multi-function unit is connected to the pipe h6a (ie, the hot water outlet a8 side) and the fourth connection port a4 of the multi-function unit is connected to the pipe h6b (ie, the h6b). The multifunctional unit 1 is connected to be connected to the hot water inlet a10 side). Then, the control wirings of the first and second pumps P1 and P2 and the regulating valve 5 of the multi-function unit 1 are connected to the connection portion 13d of the control device 13. The changeover switch 13f is changed over so that both the first and second control functions 13a and 13b are activated. In addition, one of the pipes h12 and h13 (pipe h12 in FIG. 1) connected to the inlet a12 and the outlet a13 of the heater 7 is connected to the fifth connection port a5 of the multi-function unit 1, respectively. The other of the pipes h12 and h13 (the pipe h13 in FIG. 1) is connected to one sixth connection port a6.

  Thus, as described above, the control device 13 controls the heat pump heat source unit 9, the pump P3, and the multi-function unit 1 according to the detection results of the temperature sensors T1 to T5 and the input of the heating operation to the operation input unit 13c. As a result, the hot water in the hot water storage tank 11 is heated according to the amount of remaining hot water in the hot water storage tank 11, and the heater 7 is controlled according to the heating operation of the operation input unit 13c.

  According to the hot water supply system 100 configured as described above, the first and second connection ports a1 and a2 are connected to the hot water outlet a8 and the inflow port a7 of the heat pump heat source unit 9 of the hot water supply system body 2, and the fifth and sixth The discharge port a11 and the inflow port a12 for the heating fluid of the heater 7 are connected to the connection ports a5 and a6, and the discharge port a9 and the hot water of the hot water storage tank 11 of the hot water supply system body 2 are connected to the third and fourth connection ports a3 and a4. The multifunctional unit 1 can be retrofitted to the hot water supply system body 2 by connecting the mouth a10.

  Moreover, according to the hot water supply system 100, the hot water supply system which can retrofit the multifunctional unit 1 can be provided.

  Moreover, since the pump P3 is provided, even when the multifunction unit 1 is connected to the fifth flow path h5, the hot water in the hot water storage tank 11 can be stably sent to the heat pump heat source unit 9 side.

  Further, since the control device 13 of the hot water supply system body 2 is provided with the second control function 13b for the multi-function unit 1, it is not necessary to provide the multi-function unit 1 with a control device.

  Further, since the second control function 13b operates in the control device 13 only when the multi-function unit 1 is connected to the hot water supply system main body 2, the operation of the control device 13 when the multi-function unit 1 is not connected to the hot water supply system main body 2 is performed. The burden can be reduced.

Second Embodiment
In the first embodiment, only the hot water supply system main body 2 is provided with the control device 13. However, in this embodiment, in the first embodiment, the hot water supply system main body 2 and the multi-function unit 1 are each provided with a control device. It is a thing. Hereinafter, the same parts as those of the first embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  In the hot water supply system 100B according to this embodiment, as shown in FIGS. 1 and 4, the hot water supply system body 2 includes a first control device 13B (first control means), and the multi-function unit 1 includes a second control device 17B (first control device). 2 control means).

  The first control device 13B includes a first control function 13aB, a second control function 13bB, an operation input unit 13c, a connection unit 13dB, a remaining hot water amount detection unit 13e, and a changeover switch 13f. In addition, each component 13c, 13e, 13f is the same as the case of 1st Embodiment. The first and second control functions 13aB and 13bB constitute a control unit.

  The connection part 13 dB is connected to one end of each control wiring from the first pump P <b> 1, the second pump P <b> 2, the regulating valve 5, and the second control device 17 so as to be attachable (detachable). The connection means that can be retrofitted is the same as in the first embodiment.

  The 1st control function 13aB is a function (namely, the same function as the 1st control function 13a of a 1st embodiment) which controls heat pump heat source machine (heating means) 9 and pump P3 (3rd pump). The second control function 13bB controls the second pump P2 and the regulating valve 5 via the second control device 17B, and directly or according to the control from the second control device 17B. It is a function which controls the heat pump heat source machine 9 via. The changeover switch 13f is, for example, a manual switch, and activates only the first control function 13aB among the first and second control functions 13aB and 13bB, or both of the first and second control functions 13aB and 13bB. This is a switch for switching whether to operate.

  The second control device 17B controls the first pump P1, the second pump P2, and the regulating valve 5, and also controls the heat pump heat source unit 9 via the second control means 13bB of the first control device 13B.

  In this embodiment, when the multifunctional unit 1 is not connected to the hot water supply system body 2 as shown in FIG. 2, when only the first control function 13aB is activated by the changeover switch 13f, the first control function 13aB is As in the case of the first embodiment, the heating of the hot water in the hot water storage tank 11 is controlled by controlling the heat pump heat source unit 9 and the pump P3 according to the detection result of the remaining hot water amount detection unit 13e.

  On the other hand, when the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1, when both the first and second control functions 13aB and 13bB are operated by the changeover switch 13f, the remaining hot water amount detection unit In accordance with the detection result of 13c, the first control function 13aB controls the heat pump heat source unit 9 and the pump P3, and the second control function 13bB controls the second pump P2 and the control valve 5 via the second control device 17. Thus, as in the case of the first embodiment, the heating of the hot water in the hot water storage tank 11 is controlled.

  In addition, when the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1, the second control device 17 </ b> B receives the first pump P <b> 1, the first pump P <b> 1 in response to the heating operation input to the operation input unit 13 c. As in the case of the first embodiment, the heater 7 is controlled by controlling the two pumps P2 and the regulating valve 5 and controlling the heat pump heat source unit 9 via the second control function 13bB of the first control device 13B. Is done.

  According to the hot water supply system 100B configured as described above, the multi-function unit 1 is provided with the second control device 17B, and the operation of the multi-function unit 1 is controlled mainly by the second control device 17B. The burden of controlling the multifunction unit 1 in the first control device 13B of the system body 2 can be reduced.

<Third Embodiment>
In the second embodiment, the operation of the hot water supply system main body 2 and the operation of the multi-function unit 1 are coordinated by the second control function 13bB provided in the first control device 13B of the hot water supply system main body 2, but this embodiment Then, as shown in FIG. 5, the second controller 17C of the multi-function unit 1 changes the content of the control signal s1 output from the control unit 13aC of the hot water supply system body 2 to the heat pump heat source unit 9, thereby providing a hot water supply system. The operation of the main body 2 and the operation of the multi-function unit 1 are coordinated. Hereinafter, the same parts as those of the first embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  In the hot water supply system 100C according to this embodiment, as shown in FIGS. 1 and 5, the hot water supply system body 2 includes a first control device 13C (first control means), and the multi-function unit 1 includes a second control device 17C (first control device). 2 control means).

  The first control device 13C includes a control unit 13aC, an operation input unit 13c, and a remaining hot water amount detection unit 13e. Each component 13c, 13e is the same as in the first embodiment. The operation input unit 13c is wire-connected to the second control device 17C. The operating device 13c may be disposed in the second control device 17C.

  Similarly to the case of the first embodiment, the control unit 13aC controls the heat pump heat source device (heating means) 9 and the pump P3 (third pump) according to the detection result of the remaining hot water amount detection unit 13e, so that the hot water storage tank The hot water in 11 is heated to the target temperature. Here, when heating the hot water in the hot water storage tank 11 to the target temperature, the control unit 13aC outputs a control signal s1 (control signal for heating means) to the heat pump heat source unit 9 to control the heat pump heat source unit 9 to the control signal s1. And the control signal s2 (pump control signal) is output to the pump (third pump) P3 to operate the pump P3 with a predetermined discharge amount. That is, the controller 13aC heats the hot water in the hot water storage tank 11 to the target temperature by making the discharge amount of the pump P3 constant and adjusting the heating capacity of the heat pump heat source unit 9. Further, the control unit 13aC outputs the control signal s1 to the heat pump heat source unit 9 to stop the heat pump heat source unit 9, and outputs the control signal s2 to the pump P3 to stop the pump P3. Stop heating the hot water.

  The second control device 17C controls the heater 7 by controlling the first pump P1, the second pump P2, and the regulating valve 5 in accordance with the input of the heating operation to the operation input unit 13c. More specifically, the second control device 17C is configured such that the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1 (that is, the multi-function unit 1 is connected to the heat pump heat source unit 9 and the pump in the fifth flow path h5) In the case of being connected to the portion between P3 and the sixth flow path h6), the control signal s1 output from the control unit 13aC to the heat pump heat source unit 9 as shown in FIG. As well as relaying, the first pump P1, the second pump P2, and the regulating valve 5 are controlled as shown in FIG.

  That is, in step S1, the second control device 17C determines whether or not the heat pump heat source unit 9 is operating (ie, heating of hot water in the hot water storage tank 11) based on the relayed control signal s1. As a result of the determination, if the heat pump heat source unit 9 is in operation, the process proceeds to step S2. If the heat pump heat source unit 9 is not in operation (that is, stopped), the process proceeds to step S7.

  In step S2, the second control device 17C confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step S3. If there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step S2. Proceed to -2.

  In step S3, the second control device 17C relays the control signal s1 to be relayed without changing the contents thereof so that the hot water in the hot water storage tank 11 is heated and the heater 7 is not operated (this is not the case). In this case, since the content of the control signal s1 heat pump heat source unit 9 is activated, the heat pump heat source unit 9 is activated unless the content of the control signal s1 is changed.) And the first pump P1 is stopped and the second pump P2 Is operated with a predetermined discharge amount (that is, the same discharge amount as the discharge amount of the pump P3), and the regulating valve 5 is controlled so that the heat exchanger side α is fully closed and the hot water storage tank side β is fully opened. Thereby, the heat exchanger 3 does not function (therefore, the heater 7 does not operate), and the hot water in the hot water storage tank 11 is a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11. It circulates and is heated by the heat pump heat source unit 9, and hot water in the hot water storage tank 11 is heated. Then, the process returns to step S1.

  In step S2-2, in response to an instruction to start heating, when the second control device 17C performs control for heating, the process proceeds to step S5, and the second control device 17C performs control for heating. If not, the process proceeds to step S4.

  In step S4, the second controller 17C increases (a) the heating capacity specified by the relay control signal s1 so that the hot water in the hot water storage tank 11 is heated and the heater 7 is activated. Change to heating capacity (for example, heating capacity capable of heating the hot water of the discharge amount of the second pump P2 to the target temperature) and relay (b) the second pump P2 to the predetermined discharge amount (that is, the discharge amount of the pump P3) And (c) the regulating valve 5 is controlled to a diversion ratio that ensures the flow of both the heat exchanger side α and the hot water tank side β, and (d) the first pump P1. Is activated.

  As a result, the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. 7a → a11 → a5 → P1 → 3 → a6 → a12 → 7a, and in the heat exchanger 3, the heating liquid is heated by the hot water heated by the heat pump heat source unit 9, and in the heater 7 The heated heating liquid circulates through the pipe 7a to perform heating. Then, the process proceeds to step S5.

  As shown in (b) above, when the second pump P2 is operated with a discharge amount larger than the discharge amount of the pump P3, in the regulating valve 5, both the heat exchanger side α and the hot water storage tank side β are provided. The flow is secured without difficulty. Further, as shown in (a) above, the heating capacity specified by the control signal s1 is changed to a higher heating capacity, so that the amount of hot water flowing into the inlet a7 of the heat pump heat source unit 9 is discharged from the pump P3. Even if the discharge amount is changed to a discharge amount larger than the amount (that is, the discharge amount of the second pump P2), the temperature of the hot water from the hot water outlet a8 of the heat pump heat source unit 9 is maintained at the target temperature.

  In the above (a), since the heating capacity of the heat pump heat source unit 9 can be adjusted in this embodiment, the heating capacity specified by the control signal s1 is changed, but the heating capacity of the heat pump heat source unit 9 is adjusted. If the target temperature of hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 may be lowered by the operation of the heater 7, the heating capacity specified by the control signal s1 may not be changed. .

  In Step S5, the second control device 17C confirms whether or not there is an instruction to stop heating to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to step S1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step S3. Proceed to

  In Step S7, the second control device 17C confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process returns to step S1, and if there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step S7. Proceed to -2.

  In step S7-2, in response to the instruction to start heating, when the second control device 17C performs control for heating, the process proceeds to step S9, and the second control device 17C performs control for heating. If not, the process proceeds to step S8.

  In step S8, the second control device 17C changes the relay control signal s1 to the content that the heat pump heat source unit 9 is operated so that the heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is activated. And the first and second pumps P1 and P2 are operated, and the regulating valve 5 is controlled to a diversion ratio that ensures a flow on the heat exchanger side α (for example, the heat exchanger side α is fully opened). Control so that hot water storage tank side β is fully closed).

  Thereby, hot water in the heat exchanger 3 circulates in the order of 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b, and the heating liquid in the heater 7 is 7a → a11. Heating is performed by the heater 7 by circulating in the order of a5 → P1 → 3 → a6 → a12 → 7a. Then, the process proceeds to step S9.

  In step S9, the second controller 17C confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to step S1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step S10. Proceed to

  In step S10, the second control device 17C relays the control signal s1 to be relayed without changing the contents so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped. In addition, the first and second pumps P1 and P2 are stopped. Then, the process returns to step S1.

  According to the hot water supply system 100C configured as described above, the operation of the multi-function unit 1 and the operation of the hot water supply system body 2 are coordinated by changing the content of the control signal s1 in the multi-function unit 1. In connecting the multi-function unit 1 to the system main body 2, the first control device 13C of the hot water supply system main body 2 can be used as it is without changing the design.

<Fourth embodiment>
In the third embodiment, the adjustment of the temperature of hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 is performed by making the discharge amount of the pump P3 constant and adjusting the heating capacity of the heat pump heat source unit 9. However, in this embodiment, the heating capacity of the heat pump heat source apparatus 9 is made constant and the discharge amount of the pump P3 is adjusted. In the multi-function unit 1, not only the control signal s1 but also the control is explained. The signal s2 is also relayed. In the following, the same parts as those in the third embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts are mainly described.

  In the hot water supply system 100D according to this embodiment, as shown in FIGS. 1 and 7, the hot water supply system body 2 includes a first control device 13D (first control means), and the multi-function unit 1 includes a second control device 17D (first control device). 2 control means).

  The first control device 13D includes a control unit 13aD, an operation input unit 13c, and a remaining hot water amount detection unit 13e.

  As in the case of the third embodiment, the control unit 13aD controls the heat pump heat source unit (heating means) 9 and the pump P3 (third pump) according to the detection result of the remaining hot water amount detection unit 13e, so that the hot water storage tank The hot water in 11 is heated to the target temperature. Here, when the hot water in the hot water storage tank 11 is heated to the target temperature, the control unit 13aD outputs the control signal s2 (pump control signal) to the pump P3 and discharges the pump P3 specified by the control signal s2. In addition to being operated by the amount, a control signal s1 (control signal for heating means) is output to the heat pump heat source unit 9 to operate the heat pump heat source unit 9 with a predetermined heating capability (that is, a constant heating capability). That is, the control unit 13aD heats the hot water in the hot water storage tank 11 to the target temperature by making the heating capacity of the heat pump heat source unit 9 constant and adjusting the discharge amount of the pump P3. The control unit 13aD outputs a control signal s2 to the pump P3 to stop the pump P3, and outputs a control signal s1 to the heat pump heat source unit 9 to stop the heat pump heat source unit 9, thereby Stop heating the hot water.

  The second control device 17D controls the heater 7 by controlling the first pump P1, the second pump P2, and the regulating valve 5 according to the input of the heating operation to the operation input unit 13c.

  More specifically, the second control device 17D is configured so that the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1 (that is, the multi-function unit 1 is connected to the heat pump heat source device 9 and the pump in the fifth flow path h5) Control signal s output from the control unit 13aD to the heat pump heat source unit 9 as shown in FIG. 7 in the case of being connected to the portion between P3 and the sixth flow path h6). The control signal s2 output from the controller 13aD to the pump P3 is relayed, and the first pump P1, the second pump P2, and the regulating valve 5 are controlled as shown in FIG.

  That is, at step T1, the second control device 17D determines whether the heat pump heat source unit 9 is operating (ie, heating the hot water in the hot water storage tank 11) or stopped based on the relayed control signal s1. to decide. Since the heat pump heat source unit 9 and the pump P3 are linked by the control unit 13aD, instead of determining whether the heat pump heat source unit 9 is operating based on the control signal s1, based on the control signal s2. It may be determined whether or not the pump P3 is operating. As a result of the determination, if the heat pump heat source unit 9 is operating, the process proceeds to step T2, and if the heat pump heat source unit 9 is stopped, the process proceeds to step T7.

  In Step T2, the second control device 17D confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step T3. If there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step T2. Proceed to -2.

  In Step T3, the second control device 17D heats the hot water in the hot water storage tank 11 without changing the contents of the control signals s1 and s2 that are relayed so that the heater 7 does not operate. Relay to the heat source unit 9 and the pump P3, stop the first pump P1, and operate the second pump P2 with the discharge amount specified by the control signal s2 (that is, the same discharge amount as the discharge amount of the pump P3), The control valve 5 is controlled so that the heat exchanger side α is fully closed and the hot water storage tank side β is fully opened. As a result, the heater 7 does not operate, and the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9. The hot water in the hot water storage tank 11 is heated. Then, the process returns to step T1.

  In step T2-2, in response to the instruction to start heating, when the second control device 17D performs control for heating, the process proceeds to step T5, and the second control device 17D performs control for heating. If not, the process proceeds to step T4.

  In step T4, the second control device 17D relays the control signal s1 to be relayed without changing the content thereof so that the hot water in the hot water storage tank 11 is heated and the heater 7 is activated (a2). And relay the control signal s2 to be relayed by changing the discharge amount designated by the control signal s2 to a smaller discharge amount, and (b2) designated by the control signal s2 to be relayed (control signal s2 before the change of (a2)) The second pump P2 is operated with the discharged amount, and (c2) the regulating valve 5 is controlled to a predetermined diversion ratio that ensures the flow of both the heat exchanger side α and the hot water tank side β, and (d2 ) Activate the first pump P1.

  As a result, the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. 7a-> a11-> a5-> P1-> 3-> a6-> a12-> 7a circulate in this order, and heating is performed by the heater 7.

  Note that, as in the above (a2) and (b2), the second pump P2 is operated with the discharge amount specified by the control signal s2, and the pump P3 has a discharge amount smaller than the discharge amount specified by the control signal s2. As a result, the flow of both the heat exchanger side α and the hot water tank side β is ensured in the regulating valve 5 without difficulty. At that time, the second pump P2 is operated with the discharge amount specified by the control signal s2, thereby a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 in the hot water storage tank 11. In addition to the circulation of the hot water in the heat exchanger 3, the temperature of the hot water from the outlet a8 of the heat pump heat source unit 9 becomes the target temperature even if the circulation of hot water 5 → P2 → a7 → 9b → a8 → N2 → 3 is added. Maintained.

  In addition, when the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 may be lower than the target temperature, or in this embodiment, the discharge amount of the pump P3 is adjustable, but the discharge amount of the pump P3 is When an embodiment that cannot be adjusted is assumed, the second control device 17D is caused to relay the control signal s2 to be relayed to the pump P2 without being changed in (a2), and to the second pump P2 in (b2) above. May be operated with a discharge amount larger than the discharge amount of the pump P2. In these cases as well, the target temperature decreases, but hot water in the hot water storage tank 11 and heating by the heater 7 are performed.

  In Step T5, the second controller 17D confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no heating stop instruction input to the operation input unit 13c, the process returns to step T1, and if there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step T3. Proceed to

  In Step T7, the second controller 17D confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no input of the heating start instruction to the operation input unit 13c, the process returns to step T1, and when there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step T7. Proceed to -2.

  In step T7-2, in response to the instruction to start heating, when the second control device 17D performs control for heating, the process proceeds to step T9, and the second control device 17D performs control for heating. If not, the process proceeds to Step T8.

  In step T8, the second control device 17D changes the content of the relayed control signal s1 so that the heat pump heat source unit 9 operates so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is activated. Change and relay to the heat pump heat source unit 9 and relay the control signal s2 to the pump P3 without changing the content (in this case, the content of the control signal s2 is the content to stop the pump P3, If the signal P2 is relayed to the pump P3 without being changed, the pump P3 is stopped.) And the control valve 5 is controlled to a diversion ratio that ensures the flow on the heat exchanger side α (for example, the heat exchanger side α Is controlled so that the hot water storage tank side β is fully closed) and the first and second pumps P1 and P2 are operated.

  Thereby, hot water in the heat exchanger 3 circulates in the order of 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b, and the heating liquid in the heater 7 is 7a → a11. Heating is performed by the heater 7 by circulating in the order of a5 → P1 → 3 → a6 → a12 → 7a. Then, the process proceeds to step T9.

  In Step T9, the second control device 17D confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to step T1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step T10. Proceed to

  In Step T10, the second control device 17D does not change the contents of the control signals s1 and s2 that are relayed so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped. (In this case, since the contents of the control signals s1 and s2 are contents for stopping the heat pump heat source unit 9 and the pump P3, respectively, if the control signals s1 and s2 are relayed without changing their contents, the heat pump The heat source unit 9 and the pump P3 are stopped.), And the first pump P1 and the second pump P2 are stopped. Then, the process returns to step S1.

  According to the hot water supply system 100D configured as described above, by changing the contents of the control signals s1 and s2 in the multi-function unit 1, the operation of the multi-function unit 1 and the operation of the hot water system main body 2 are coordinated. Therefore, when connecting the multifunctional unit 1 to the hot water supply system body 2, the first control device 13D of the hot water system main body 2 can be used as it is without changing the design.

<Fifth Embodiment>
In 3rd Embodiment, the 2nd control apparatus 17C of the multifunctional unit 1 changes the content of the control signal s1 output to the heat pump heat source machine 9 from the control part 13aC, operation | movement of the multifunctional unit 1, and a hot water supply system Although the operation of the main body 2 is coordinated, in this embodiment, the second control device 17E of the multi-function unit 1 detects the detection signal s3 output from the temperature sensors T1 to T5 to the control unit 13aE as shown in FIG. By changing the content of, the operation of the multi-function unit 1 and the operation of the hot water supply system body 2 are coordinated. In the following, the same parts as those in the third embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts are mainly described.

  In the hot water supply system 100E according to this embodiment, as shown in FIGS. 1 and 9, the hot water supply system body 2 includes a first control device 13E (first control means), and the multi-function unit 1 includes a second control device 17E (first control device). 2 control means).

  The first control device 13E includes a control unit 13aE, an operation input unit 13c, and a remaining hot water amount detection unit 13eE. The operation input unit 13c is the same as that in the first embodiment.

  The remaining hot water amount detection unit 13eE periodically acquires detection signals s3 from the temperature sensors T1 to T5, detects the remaining hot water amount in the hot water storage tank 11 based on the respective detection signals s3, and the remaining hot water amount is the amount of remaining activated hot water. It is detected whether or not it is equal to or less than the amount of remaining hot water.

  When the remaining hot water amount is equal to or less than the startup remaining hot water amount as a result of detection by the remaining hot water amount detection unit 13eE, the control unit 13aE operates the heat pump heat source unit (heating means) 9 and the pump P3 (third pump) to store the hot water storage tank. The hot water in 11 is heated to the target temperature. Here, the pump P3 is operated with a predetermined discharge amount (that is, a constant discharge amount), and the heat pump heat source unit 9 is operated with a heating capability according to the content of the detection signal s3, so that the hot water in the hot water storage tank 11 is discharged. Heated to target temperature. On the other hand, when the remaining hot water amount is equal to or larger than the stopped remaining hot water amount, the control unit 13aE stops the heat pump heat source unit 9 and the pump P3 to stop the heating of the hot water in the hot water storage tank 11.

  The second control device 17E controls the heater 7 by controlling the first pump P1, the second pump P2, and the regulating valve 5 in accordance with the input of the heating operation to the operation input unit 13c.

  More specifically, the second control device 17E is configured so that the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1 (that is, the multi-function unit 1 is connected to the heat pump heat source device 9 and the pump in the fifth flow path h5) 9), the temperature sensor T1 to T5 outputs the remaining amount of hot water to the remaining hot water detection unit 13eE as shown in FIG. While relaying the detection signals s3 of the temperature sensors T1 to T5, the first pump P1, the second pump P2, and the regulating valve 5 are controlled as shown in FIG.

  That is, in Step U1, the second control device 17E detects the remaining hot water amount in the hot water storage tank 11 based on the relayed detection signal s3, as in the case of the remaining hot water amount detection unit 13eE, and the remaining hot water amount is equal to or less than the starting remaining hot water amount. It is determined whether or not the amount of remaining hot water is equal to or greater than the amount of remaining hot water, and based on the determination, it is determined whether or not the heat pump heat source unit 9 is operating (that is, hot water in the hot water storage tank 11 is being heated). To do. As a result of the determination, if the heat pump heat source unit 9 is in operation, the process proceeds to step U2, and if the heat pump heat source unit 9 is not in operation, the process proceeds to step U7.

  In Step U2, the second control device 17E confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step U3. If there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step U2. Proceed to -2.

  In Step U2-2, when the second control device 17E performs control for heating in response to an instruction to start heating, the process proceeds to Step U5, and the second control device 17E performs control for heating. If not, the process proceeds to step U4.

  In step U3, the second controller 17E does not change the information of the remaining hot water contained in the detection signal s3 to be relayed so that the hot water in the hot water storage tank 11 is heated and the heater 7 does not operate. And the first pump P1 is stopped, the second pump P2 is operated with a predetermined discharge amount (for example, the same discharge amount as the discharge amount of the pump P3), and the regulating valve 5 is connected to the heat exchanger side α Is controlled so that the hot water storage tank side β is fully opened. As a result, the heater 7 does not operate, and the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9. The hot water in the hot water storage tank 11 is heated. Then, the process returns to step U1.

  In step U4, the second control device 17E provides (a3) information on the amount of remaining hot water contained in the relayed detection signal s3 so that the hot water in the hot water storage tank 11 is heated and the heater 7 is activated. The heat pump heat source unit 9 is changed so as to be operated with a required heating capacity and relayed, and (b3) the second pump P2 is operated with a discharge amount larger than the predetermined discharge amount (that is, the discharge amount of the pump P3). And (c3) the control valve 5 is controlled to a predetermined diversion ratio that ensures the flow of both the heat exchanger side α and the hot water tank side β, and (d3) the first pump P1 is operated.

  As a result, the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. 7a-> a11-> a5-> P1-> 3-> a6-> a12-> 7a circulate in this order, and heating by the heater 7 is performed. Then, the process proceeds to step U5.

  Note that, as described above (b3), the second pump P2 is operated with a discharge amount larger than the discharge amount of the pump P3, so that both the heat exchanger side α and the hot water tank side β in the regulating valve 5. The flow is secured without difficulty. In (a3) above, when the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 is set to the target temperature or as close as possible to the target temperature, information on the amount of remaining hot water contained in the relayed detection signal s3 is used. What is necessary is just to change so that the heat source machine 9 may operate | move with a larger heating capability. At that time, for example, when the heating capacity of the heat pump heat source apparatus 9 is controlled to increase as the remaining hot water amount decreases, the information on the remaining hot water amount included in the relayed detection signal s3 indicates that the remaining hot water amount becomes smaller. Change to

  In addition, when the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 may be lower than the target temperature, or in this embodiment, the heating capacity of the heat pump heat source unit 9 can be adjusted, the heat pump heat source unit When the embodiment in which the heating capacity of 9 cannot be adjusted is assumed, in the above (a3), the second control device 17E may relay the remaining hot water amount detection unit 13eE to the relay control signal s3 without changing the relay control signal s3. . In these cases as well, the target temperature decreases, but hot water in the hot water storage tank 11 and heating by the heater 7 are performed.

  In Step U5, the second control device 17E confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to Step U1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to Step U3. Proceed to

  In Step U7, the second control device 17E confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no input of the heating start instruction to the operation input unit 13c, the process returns to Step U1, and when there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to Step U7. Proceed to -2.

  In Step U7-2, in response to an instruction to start heating, when the two control devices 17E perform control for heating, the process proceeds to Step U9, and the second control device 17C performs control for heating. If not, the process proceeds to Step U8.

  In Step U8, the second control device 17E controls the first pump P1, the second pump P2, and the control valve 5 in the same manner as (a3) to (d3) so that the heater 7 operates. In this case, it is not necessary to heat the hot water in the hot water storage tank 11, but if the heat pump heat source unit 9 is operated by changing the detection signal s3, the pump P3 is also operated. Is also heated. Then, the process proceeds to step U9.

  In Step U9, the second control device 17E confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no heating stop instruction input to the operation input unit 13c, the process returns to step U1, and if there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step U10. Proceed to

  In step S10, the second control device 17E relays the relayed detection signal s3 without changing the contents thereof so that the heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped ( In this case, since the detection signal s3 does not heat the hot water in the hot water storage tank 11, the heat pump heat source unit 9 and the pump P3 are stopped unless the detection signal s3 is changed.) And the first pump P1 and the first pump 2 Stop the pump P2. Then, the process returns to step U1.

  According to the hot water supply system 100E configured as described above, the operation of the multi-function unit 1 and the operation of the hot water supply system body 2 are coordinated by changing the content of the control signal s3 in the multi-function unit 1. In connecting the multi-function unit 1 to the system main body 2, the first control device 13E of the hot water supply system main body 2 can be used as it is without changing the design.

  In this embodiment, the amount of remaining hot water in the hot water storage tank 11 is detected based on the detection signals s3 of the temperature sensors T1 to T5, and the heating of the hot water in the hot water storage tank 11 is controlled according to the amount of remaining hot water. Based on the detection signal s3 of the sensor T1 (that is, the temperature sensor disposed at the uppermost part of the hot water storage tank 11), the remaining hot water temperature (remaining hot water temperature) in the hot water storage tank 11 is detected, and hot water storage is performed according to the remaining hot water temperature. The heating of hot water in the tank 11 may be controlled. That is, for example, in the control unit 13aE, the remaining hot water temperature is detected from the detection signal s3 of the temperature sensor T1, and when the remaining hot water temperature is equal to or lower than the starting temperature, the heat pump heat source unit 9 and the pump P3 are operated to When the hot water in the hot water is heated to the target temperature and the remaining hot water temperature is higher than the stop temperature, the heat pump heat source unit 9 and the pump P3 are stopped, and the hot water in the hot water storage tank 11 is stopped. The stop temperature is equal to or greater than the start temperature. In this case, the second control device 17E is arranged so as to relay the detection signal s3 output from the temperature sensor T1 to the control unit 13aE, and the above (b3) to (d3) are left as they are. The detection signal s3 to be relayed is changed so that the information on the remaining hot water temperature included in the detection signal s3 is changed so that the heat pump heat source unit 9 is operated with a required heating capacity and relayed to the control unit 3aE.

<Sixth Embodiment>
In the fifth embodiment, when the discharge amount of the pump P3 is made constant and the heating capacity of the heat pump heat source unit 9 is adjusted, the temperature of hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 is adjusted. As described above, in this embodiment, the temperature of the hot water discharged from the hot water outlet a8 is adjusted by making the heating capacity of the heat pump heat source unit 9 constant and adjusting the discharge amount of the pump P3 in the fifth embodiment. The case will be described. In the following, the same parts as those in the fifth embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts are mainly described.

  In the hot water supply system 100F according to this embodiment, as shown in FIGS. 1 and 9, the hot water supply system body 2 includes a first control device 13F (first control means), and the multi-function unit 1 includes a second control device 17F (first control device). 2 control means).

  The first control device 13F includes a control unit 13aF, an operation input unit 13c, and a remaining hot water amount detection unit 13eE. The constituent elements 13c and 13eE are the same as those in the fifth embodiment.

  As a result of detection by the remaining hot water amount detection unit 13eE, the control unit 13aF activates the heat pump heat source device (heating means) 9 and the pump P3 (third pump) to store the hot water storage tank. The hot water in 11 is heated to the target temperature. Here, the heat pump heat source unit 9 is operated with a predetermined heating capacity (that is, a constant heating capacity), and the pump P3 is operated with a discharge amount corresponding to the content of the detection signal s3, so that the hot water in the hot water storage tank 11 is discharged. Heated to target temperature. On the other hand, when the remaining hot water amount is equal to or larger than the stopped remaining hot water amount, the control unit 13aE stops the heat pump heat source unit 9 and the pump P3 to stop the heating of the hot water in the hot water storage tank 11.

  The second control device 17F controls the heater 7 by controlling the first pump P1, the second pump P2, and the regulating valve 5 in accordance with the input of the heating operation to the operation input unit 13c.

  More specifically, the second control device 17F is configured such that the multi-function unit 1 is connected to the hot water supply system body 2 as shown in FIG. 1 (that is, the multi-function unit 1 is a heat pump heat source machine 9 in the fifth flow path h5). 9 and the sixth flow path h6), the temperature sensor T1 to T5 outputs to the remaining hot water detection unit 13eE as shown in FIG. The detected signal s3 is relayed, and the first pump P1, the second pump P2, and the regulating valve 5 are controlled as shown in FIG.

  That is, at step V1, the second control device 17F detects the remaining hot water amount in the hot water storage tank 11 based on the relayed detection signal s3, as in the case of the remaining hot water amount detection unit 13eE, and the remaining hot water amount is less than the starting remaining hot water amount. It is determined whether or not the amount of remaining hot water is equal to or greater than the amount of remaining hot water, and based on the determination, it is determined whether or not the heat pump heat source unit 9 is operating (that is, hot water in the hot water storage tank 11 is being heated). To do. As a result of the determination, if the heat pump heat source unit 9 is in operation, the process proceeds to step V2, and if the heat pump heat source unit 9 is not in operation, the process proceeds to step V7.

  In step V2, the second control device 17F confirms whether or not there is an instruction to start heating to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step V3. If there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step V2. Proceed to -2.

  In Step V2-2, when the second control device 17F receives a heating start instruction and performs control for heating, the process proceeds to Step Y5, and the second control device 17F performs control for heating. If not, the process proceeds to Step V4.

  In Step V3, the second controller 17F does not change the information of the remaining hot water contained in the relayed detection signal s3 so that the hot water in the hot water storage tank 11 is heated and the heater 7 does not operate. And the first pump P1 is stopped, and the second pump P2 is operated with a predetermined discharge amount (that is, the same discharge amount as that of the pump P3, for example). The control valve 5 is controlled so that the heat exchanger side α is fully closed and the hot water storage tank side β is fully opened. As a result, the heater 7 does not operate, and the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9. The hot water in the hot water storage tank 11 is heated. Then, the process returns to step V1.

  In Step V4, the second control device 17F operates (a4) the second pump P2 with a required discharge amount so that the hot water in the hot water storage tank 11 is heated and the heater 7 is operated, and ( b4) The relayed detection signal s3 is relayed by changing the information on the amount of remaining hot water contained therein so that the pump P3 operates with a discharge amount smaller than the required discharge amount (that is, the discharge amount of the second pump P2). (C4) The regulating valve 5 is controlled to a diversion ratio that ensures the flow on both the heat exchanger side α and the hot water storage tank side β, and (d4) the first pump P1 is operated.

  As a result, the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. It circulates in the order of 7a → a11 → a5 → P1 → 3 → a6 → a12 → 7a, and the heater 7 performs heating. Then, the process proceeds to Step V5.

  The required discharge amount of (a4) is preferably a discharge amount at which the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 becomes the target temperature, but is not limited to this. . In (a4), the second control device 17F causes the first control device to operate the pump P3 based on the discharge amount corresponding to the remaining hot water amount information included in the relayed detection signal s3 (that is, based on the detection signal s3). The second control device 17F operates the second control device 17F based on the detection signal s3 from the relayed detection signal s3. ), The amount of discharge of the pump P3 when the pump P3 is operated is grasped.) In the above (b4), the information on the remaining hot water amount contained in the relayed detection signal s3 is smaller than that of the pump P3. You may change so that it may operate by discharge amount. At that time, for example, when the discharge amount of the pump P3 is controlled so as to increase as the remaining hot water amount in the hot water storage tank 11 decreases, the remaining hot water amount increases in the information on the remaining hot water amount included in the detection signal s3 to be relayed. You can change it like this. Further, as in the above (b4), the pump P3 is operated with a discharge amount smaller than the discharge amount of the second pump P2, so that both the heat exchanger side α and the hot water tank side β flow in the regulating valve 5. Is secured without difficulty.

  In addition, when the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 may be lower than the target temperature, or in this embodiment, the discharge amount of the pump P3 can be adjusted, but the discharge amount of the pump P3 Is assumed to be an embodiment that cannot be adjusted, the second control device 17F is greater than the discharge amount corresponding to the remaining hot water amount information contained in the detection signal s3 relayed to the second pump P2 in (a4) above. The operation may be performed with the discharge amount, and in (b4), the control signal s3 to be relayed may be relayed to the remaining hot water amount detection unit 13eE without being changed. In these cases as well, the target temperature decreases, but hot water in the hot water storage tank 11 and heating by the heater 7 are performed.

  In Step V5, the second controller 17F confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to step V1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step V3. Proceed to

  In Step V7, the second controller 17F confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no input of the heating start instruction to the operation input unit 13c, the process returns to Step V1, and when there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to Step V7. Proceed to -2.

  In Step V7-2, in response to the instruction to start heating, when the second control device 17F performs control for heating, the process proceeds to Step V9, and the second control device 17F performs control for heating. If not, the process proceeds to Step V8.

  In Step V8, the second control device 17F changes the contents of the detection signals s3 to be relayed, as in Step V4, so that the heater 7 operates, and the first pump P1, the second pump P2, and The regulating valve 5 is controlled. In this case, it is not necessary to heat the hot water in the hot water storage tank 11, but if the information on the amount of remaining hot water contained in the detection signal s3 is changed and the heat pump heat source unit 9 is operated, the pump P3 is also operated. Thus, the hot water in the hot water storage tank 11 is heated. Then, the process proceeds to Step V9.

  In Step V9, the second control device 17F checks whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no heating stop instruction input to the operation input unit 13c, the process returns to step V1, and if there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step V10. Proceed to

  In Step V10, the second control device 17F relays the detection signal s3 to be relayed without changing the contents so that the heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped. And the 1st pump P1 and the 2nd pump P2 are stopped. Then, the process also returns to step V1.

  According to the hot water supply system 100F configured as described above, the second control device 17F of the multi-function unit 1 is arranged to relay the detection signal s3, and the content of the control signal s3 is changed in the second control device 17F. Thus, since the operation of the multi-function unit 1 and the operation of the hot water supply system main body 2 are coordinated, when the multi-function unit 1 is connected to the hot water supply system main body 2, the design of the first control device 13F of the hot water supply system main body 2 is changed. It can be used as it is.

  In this embodiment, as in the fifth embodiment, instead of controlling the heating of the hot water in the hot water storage tank 11 based on the detection signals s3 of the temperature sensors T1 to T5, for example, the temperature sensor T1 (that is, the hot water storage) A temperature (remaining hot water temperature) of the hot water storage tank 11 is detected based on a detection signal s3 of a temperature sensor disposed at the top of the tank 11, and hot water in the hot water storage tank 11 is detected according to the remaining hot water temperature. The heating may be controlled. That is, for example, in the control unit 13aF, the remaining hot water temperature is detected from the detection signal s3 from the temperature sensor T1, and when the remaining hot water temperature is equal to or lower than the starting temperature, the pump heat source unit 9 and the pump P3 are operated to store the hot water storage tank. When the hot water in 11 is heated to the target temperature and the remaining hot water temperature is higher than the stop temperature, the heat pump heat source unit 9 and the pump P3 are stopped, and the hot water in the hot water storage tank 11 is stopped. In this case, the second control device 17F is arranged so as to relay the detection signal s3 output from the temperature sensor T1 to the control unit 13aF, and the above (a4), (c4), and (d4) are left as they are, and the above (b4) Then, the remaining hot water temperature information included in the relayed detection signal s3 is changed so that the pump P3 operates with a discharge amount smaller than the required discharge amount (that is, the discharge amount of the second pump P2). Relay to the detector 13eE.

<Seventh embodiment>
As shown in FIG. 12, the hot water supply system 100G according to this embodiment is obtained by omitting the pump P3 (third pump) in the hot water supply system 100 of the first embodiment (FIGS. 1 and 3).

  More specifically, in this embodiment, in the first embodiment, when the pump P3 is detachably disposed in the hot water supply system body 2 of FIG. 2 and the multifunction unit 1 is not connected to the hot water supply system body 2, FIG. When the pump P3 is disposed in the hot water supply system main body 2 as shown in FIG. 2 and the multifunctional unit 1 is connected to the hot water supply system main body 2, the pump P3 is omitted as shown in FIG. Hereinafter, the same parts as those of the first embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  In this embodiment, for example, the pump P3 is detachably disposed in the pipe h5 (more specifically, the pipe h5b).

  Further, as shown in FIG. 3, the control device 13G of this embodiment includes a first and second control function 13a, 13b, an operation input unit 13c, a connection unit 13dG, a remaining hot water amount detection unit 13e, a changeover switch 13f, It has. The components 13a to 13c, 13e, and 13f other than the connection unit 13dG are configured in the same manner as in the first embodiment.

  The connection portion 13dG is configured such that one end portion of the control wiring from the pump P3 is connected to the connection portion 13g of the first embodiment so that it can be retrofitted (detachable).

  The operation of this embodiment is the same as that of the first embodiment except that the operation of the pump P3 is omitted.

  According to the hot water supply system 100G configured as described above, in addition to the same effects as those of the first embodiment, when the multi-function unit 1 is connected to the hot water supply system body 2, the pump P3 is omitted. Can contribute to cost reduction.

  In this embodiment, when only the first control function 13a is selected by the changeover switch 13f (that is, when the pump P3 is connected to the hot water supply system 2), the first control function 13a is changed to the first control function 13a. When the first control function 13a is switched to the same function, and both the first and second control functions 13a and 13b are selected by the changeover switch 13f (that is, when the pump P3 is omitted from the hot water supply system 2), The first control function 13a may be switched from the function of the first control function 13a of the first embodiment to a function in which the function related to the control of the pump P3 is omitted. Thereby, when the pump P3 is omitted, the control load of the pump P3 can be reduced in the control device 13G.

<Eighth Embodiment>
In this embodiment, the pump P3 (third pump) is omitted from the hot water supply system 100B (FIGS. 1 and 4) of the second embodiment.

  More specifically, in this embodiment, in the second embodiment, when the pump P3 is detachably disposed in the hot water supply system main body 2 of FIG. 2 and the multifunction unit 1 is not connected to the hot water supply system main body 2, FIG. When the pump P3 is disposed in the hot water supply system main body 2 as shown in FIG. 2 and the multifunctional unit 1 is connected to the hot water supply system main body 2, the pump P3 is omitted as shown in FIG. Hereinafter, the same parts as those of the second embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  In this embodiment, for example, the pump P3 is detachably disposed in the pipe h5 (more specifically, the pipe h5b).

  In the hot water supply system 100H according to this embodiment, as shown in FIGS. 12 and 4, the hot water supply system body 2 includes a first control device 13H (first control means), and the multi-function unit 1 includes a second control device 17B (first control device). 2 control means). The second control device 17B is configured in the same manner as in the second embodiment.

  The first control device 13H includes a first control function 13aB, a second control function 13bB, an operation input unit 13c, a connection unit 13dH, a remaining hot water amount detection unit 13e, and a changeover switch 13f. The constituent elements 13aB, 13bB, 13c, 13e, and 13fB other than the connecting portion 13dH are configured in the same manner as in the second embodiment.

  The connection portion 13dH is configured such that one end portion of the control wiring from the pump P3 can be retrofitted (detachable) in the connection portion 13dB of the second embodiment.

  The operation of this embodiment is the same as that of the second embodiment except that the operation of the pump P3 is omitted.

  According to the hot water supply system 100H configured as described above, in addition to the same effects as those of the second embodiment, when the multi-function unit 1 is connected to the hot water supply system body 2, the pump P3 is omitted. Can contribute to cost reduction.

  In this embodiment, when only the first control function 13a is selected by the changeover switch 13f (that is, when the pump P3 is connected to the hot water supply system 2), the first control function 13a is changed to the first control function 13a. When the first control function 13a is switched to the same function, and both the first and second control functions 13a and 13b are selected by the changeover switch 13f (that is, when the pump P3 is omitted from the hot water supply system 2), The first control function 13a may be switched from the function of the first control function 13a of the first embodiment to a function in which the function related to the control of the pump P3 is omitted. Thereby, when the pump P3 is omitted, the control burden of the pump P3 can be reduced in the control device 13H.

<Ninth Embodiment>
As shown in FIG. 13, the hot water supply system 100I according to this embodiment is the same as the hot water supply system 100 according to the first embodiment (FIG. 1). This corresponds to the case where the pump P3 is moved from the pipe h5b of the hot water supply system body 2 to the pipe h5a. Hereinafter, the same parts as those of the first embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  The hot-water supply system 100I includes a hot-water supply system main body 2I in FIG. 14, and a multi-function unit 1I and a heater 7 that can be connected to the hot-water supply system main body 2I as shown in FIG.

  The hot water supply system main body 2I is configured in the same manner as in the first embodiment except that the pump P3 is moved from the pipe h5b to the pipe h5a and the control device 13I is changed as follows. The multi-function unit 1I is configured in the same manner as in the first embodiment except that the second pump P2 is moved from the first flow path h1 to the third flow path h3. The heater 7 is configured in the same manner as in the first embodiment.

  The control device 13I of this embodiment controls the heat pump heat source unit 9, the pump P3, and the multi-function unit 1I. As shown in FIG. 3, the first and second control functions 13a and 13bI and the operation input unit 13c. A connecting portion 13d, a remaining hot water amount detecting portion 13e, and a changeover switch 13f. Each component 13a, 13c, 13d, 13e, 13f is the same as that of the first embodiment. The second control function 13bI functions as follows.

  In this embodiment, when the multifunctional unit 1I is not connected to the hot water supply system body 2I as shown in FIG. 14, when only the first control function 13a is activated by the changeover switch 13f, the first control function 13a is Based on the detection result of the remaining hot water amount detection unit 13e, the heating of the hot water in the hot water storage tank 11 is controlled as in the case of the first embodiment.

  Further, when the multi-function unit 1I is connected to the hot water supply system main body 2I as shown in FIG. 13, when both the first and second control functions 13a and 13bI are operated by the changeover switch 13f, the first and second The control functions 13a and 13bI control the heating of the hot water in the hot water storage tank 11 based on the detection result of the remaining hot water amount detection unit 13e as in the case of the first embodiment. That is, in this case, the second control function 13bI functions in the same manner as the first control function 13b of the first embodiment.

  In addition, when the multi-function unit 1I is connected to the hot water supply system main body 2I as shown in FIG. 13, when both the first and second control functions 13a and 13bI are activated by the changeover switch 13f, the operation input unit 13c. The first control function 13a controls the heat pump heat source unit 9 and the pump P3 and the second control function 13bI controls the first pump P1 and the regulating valve 5 in accordance with the input of the heating operation to the heater 7. Is controlled.

  More specifically, when an instruction to start heating is input to the operation input unit 13c, the first control function 13a activates the heat pump heat source unit 9 and the pump P3, and the second control function 13bI controls the first pump P1. The control valve 5 is operated and controlled so that the flow on the heat exchanger side α is ensured (for example, the heat exchanger 3 side α is fully opened and the hot water storage tank side β is fully closed). Thereby, the hot water in the heat exchanger 3 circulates in the order of 3 → 5 → P3 → a7 → 9b → a8 → N2 → 3 and is heated by the heat exchanger 9b, and the heating liquid in the heater 7 is 7a. → a11 → a5 → P1 → 3 → a6 → a12 → 7a In this order, the heater 7 starts heating. On the other hand, when an instruction to stop heating is input to the operation input unit 13c, the first control function 13a stops the heat pump heat source unit 9 and the pump P3 and the second control function 13bI stops the first pump P1, thereby The heater 7 is stopped.

  According to the hot water supply system 100I configured as described above, the same effects as those of the first embodiment are obtained.

<Tenth Embodiment>
As shown in FIG. 13, the hot water supply system 100 </ b> J according to this embodiment is the same as the hot water supply system 100 </ b> B (FIG. 1) of the second embodiment. This corresponds to the case where the pump P3 is moved from the pipe h5b of the hot water supply system body 2 to the pipe h5a. Hereinafter, the same parts as those of the second embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  This hot water supply system 100J includes a hot water system main body 2J in FIG. 14, and a multi-function unit 1J and a heater 7 that can be connected to the hot water system main body 2J as shown in FIG.

  The hot water supply system body 2J is configured in the same manner as in the second embodiment except that the pump P3 is moved from the pipe h5b to the pipe h5a and the first control device 13J is changed as follows. The multi-function unit 1J is the same as that of the second embodiment except that the second pump P2 is moved from the first flow path h1 to the third flow path h3 and the operation of the second control device 17J is changed as follows. It is constructed in the same way as the case. The heater 7 is configured similarly to the first embodiment.

  As shown in FIG. 4, the first control device 13J includes a first control function 13aB, a second control function 13bJ, an operation input unit 13c, a connection unit 13dB, a remaining hot water amount detection unit 13e, and a changeover switch 13f. I have. In addition, each component 13aB, 13c, 13dB, 13e, 13fB is the same as the case of 2nd Embodiment.

  The second control function 13bJ controls the regulating valve 5 via the second control device 17J, and directly or via the first control function 13aB according to the control from the second control device 17J. And a function of controlling the pump P3.

  The second control device 17J controls the first pump P1, the second pump P2, and the regulating valve 5, and also controls the heat pump heat source unit 9 and the pump P3 via the second control means 13bJ of the first control device 13J.

  In this embodiment, when only the first control function 13aB is activated by the changeover switch 13f when the multi-function unit 1J is not connected to the hot water supply system body 2J as shown in FIG. 14, the first control function 13aB is As in the case of the second embodiment, the heating of the hot water in the hot water storage tank 11 is controlled by controlling the heat pump heat source unit 9 and the pump P3 according to the detection result of the remaining hot water amount detection unit 13e.

  On the other hand, when the multi-function unit 1J is connected to the hot water supply system body 2J as shown in FIG. 13, when both the first and second control functions 13aB and 13bJ are operated by the changeover switch 13f, the remaining hot water amount detection unit The first control function 13aB controls the heat pump heat source unit 9 and the pump P3 according to the detection result of 13c, and the second control function 13bJ controls the second pump P2 and the control valve 5 via the second controller 17J. As in the case of the second embodiment, the heating of the hot water in the hot water storage tank 11 is controlled.

  When the multi-function unit 1J is connected to the hot water supply system main body 2J as shown in FIG. 13, the second controller 17J adjusts the first pump P1 and the adjustment according to the input of the heating operation to the operation input unit 13c. By controlling the valve 5 and controlling the heat pump heat source unit 9 and the pump P3 via the second control function 13bJ of the first control device 13J, the heater 7 is controlled as in the case of the second embodiment. .

  According to the hot water supply system 100J configured as described above, the same effects as those of the second embodiment are obtained.

<Eleventh embodiment>
As shown in FIG. 13, the hot water supply system 100 </ b> K according to this embodiment is similar to the hot water supply system 100 </ b> C (FIG. 1) of the third embodiment, in which the second pump P <b> 2 is connected to the third flow path from the first flow path h < The pump P3 is moved from the pipe h5b of the hot water supply system body 2 to the pipe h5a, and not only the control signal (control signal for heating means) s1 but also the control signal (pump control signal) s2 in the multi-function unit 1. Corresponds to what was relayed. In the following, the same parts as those in the third embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts are mainly described.

  This hot water supply system 100K includes a hot water system main body 2K in FIG. 14, and a multi-function unit 1K and a heater 7 that can be connected to the hot water system main body 2K as shown in FIG.

  The hot water supply system main body 2K is configured in the same manner as in the third embodiment except that the pump P3 is moved from the pipe h5b to the pipe h5a. The multi-function unit 1K is the same as that of the third embodiment except that the second pump P2 is moved from the first flow path h1 to the third flow path h3 and the operation of the second control device 17K is changed as follows. It is constructed in the same way as the case. The heater 7 is configured similarly to the third embodiment.

  The second control device 17K controls the heater 7 by controlling the first pump P1, the second pump P2, and the regulating valve 5 in accordance with the input of the heating operation to the operation input unit 13c.

  More specifically, the second control device 17K is configured such that the multifunction unit 1K is connected to the hot water supply system body 2K as shown in FIG. 13 (that is, the multifunction unit 1K is connected to the pump P3 and the hot water storage tank 11 in the fifth flow path h5). 15 and a sixth flow path h6), a control signal (heating means) output from the control unit 13aC to the heat pump heat source unit 9 as shown in FIG. Control signal) s1 and the control signal (pump control signal) s2 output from the control unit 13aC to the pump P3 are relayed, and the first pump P1, the second pump P2, and the regulating valve 5 are connected as shown in FIG. Control.

  That is, in step W1, the second control device 17K determines whether or not the heat pump heat source unit 9 is in operation (that is, during heating of the hot water in the hot water storage tank 11) based on the relayed control signal s1. Since the heat pump heat source unit 9 and the pump P3 are linked by the first control device 13K, instead of determining whether or not the heat pump heat source unit 9 is operating based on the control signal s1, the control signal s2 is used. Based on this, it may be determined whether or not the pump P3 is operating. As a result of the determination, if the heat pump heat source unit 9 is operating, the process proceeds to step W2, and if the heat pump heat source unit 9 is stopped, the process proceeds to step W7.

  In Step W2, the second control device 17K confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step W3, and when there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step W2. Proceed to -2.

  In step W3, the second control device 17K relays the control signals s1 and s2 to be relayed without changing the contents so that the hot water in the hot water storage tank 11 is heated and the heater 7 is not activated. (In this case, since the control signals s1 and s2 are contents for operating the heat pump heat source unit 9 and the pump P3, respectively, the heat pump heat source unit 9 and the pump P3 are operated unless the contents of the control signals s1 and s2 are changed). .), The first pump P1 is stopped, the second pump P2 is operated with a predetermined discharge amount (for example, the same discharge amount as the discharge amount of the pump P3), and the regulating valve 5 is connected to the heat exchanger side α. Control is performed so that the hot water storage tank side β is fully opened. Thereby, the heat exchanger 3 does not function (therefore, the heater 7 does not operate), and the hot water in the hot water storage tank 11 is in the order of a9 → P2 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11. It circulates and is heated by the heat pump heat source unit 9, and hot water in the hot water storage tank 11 is heated. Then, the process returns to step W1.

  In step W2-2, in response to the instruction to start heating, when the second control device 17K performs control for heating, the process proceeds to step W5, and the second control device 17K performs control for heating. If not, the process proceeds to Step W4.

  In step W4, the second controller 17K changes the contents of the relayed control signals s1 and s2 so that the hot water in the hot water storage tank 11 is heated and the heater 7 operates (a5). Without being relayed to the heat pump heat source unit 9 and the pump P3, (b5) the second pump P2 is operated with a discharge amount smaller than the discharge amount of the pump P3, and (c5) the regulating valve 5 is moved to the heat exchanger side α. And (a5) the first pump P1 is operated.

  As a result, the hot water in the hot water storage tank 11 circulates in the order of a9 → P2 → 5 → P3 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P3 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. It circulates in the order of 7a → a11 → a5 → P1 → 3 → a6 → a12 → 7a, and the heater 7 performs heating. Then, the process proceeds to step W5.

  Note that, as described in (b5) above, when the second pump P2 is operated with a discharge amount smaller than the discharge amount of the pump P3, in the regulating valve 5, both the heat exchanger side α and the hot water storage tank side β are provided. The flow is secured without difficulty. In this embodiment, since the discharge amount of the pump P3 cannot be adjusted, the discharge amount of the second pump P2 is controlled to be smaller than the discharge amount of the pump P3.

  In Step W5, the second control device 17K confirms whether or not there is an instruction to stop heating to the operation input unit 13c. As a result of the confirmation, if there is no heating stop instruction input to the operation input unit 13c, the process returns to step W1, and if there is an input of heating stop instruction to the operation input unit 13c, the process proceeds to step W3. move on.

  In Step W7, the second controller 17K confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no input of the heating start instruction to the operation input unit 13c, the process returns to Step W1, and when there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to Step W7. Proceed to -2.

  In Step W7-2, in response to the instruction to start heating, when the second control device 17K performs control for heating, the process proceeds to Step W9, and the second control device 17K performs control for heating. If not, the process proceeds to Step W8.

  In step W8, the second controller 17K causes the contents of the control signals s1 and s2 to be relayed to the heat pump heat source unit 9 and the heat pump unit 9 so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is activated. The contents of the pump P3 are changed and relayed, and the regulating valve 5 is controlled to a diversion ratio that ensures the flow on the heat exchanger side α (for example, the heat exchanger side α is fully opened and the hot water storage tank side β is The first pump P1 is operated and the second pump P2 is stopped.

  Thereby, hot water in the heat exchanger 3 circulates in the order of 5 → P3 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b, and the heating liquid in the heater 7 is 7a → a11. Heating is performed by the heater 7 by circulating in the order of a5 → P1 → 3 → a6 → a12 → 7a. Then, the process proceeds to Step W9.

  In Step W9, the second controller 17K confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating stop instruction to the operation input unit 13c, the process returns to Step W1, and if there is an input of the heating stop instruction to the operation input unit 13c, the process proceeds to Step W10. Proceed to

  In Step W10, the second controller 17K changes the control signals s1 and s2 to be relayed without changing the contents so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped. (In this case, the control signals s1 and s2 are contents for stopping the heat pump heat source unit 9 and the pump P3, respectively. Therefore, the heat pump heat source unit 9 and the pump P3 are stopped without changing the contents of the control signals s1 and s2. And the pump P1 is stopped. Then, the process returns to step W1.

  According to the hot water supply system 100K configured as described above, the same effects as those of the third embodiment are obtained.

<Twelfth embodiment>
As shown in FIG. 13, the hot water supply system 100 </ b> N according to this embodiment includes a second pump P <b> 2 from the first flow path h <b> 1 of the multifunction unit 1 to the third flow path in the hot water supply system 100 </ b> D (FIG. 1) of the fourth embodiment. This corresponds to the case where the pump P3 is moved from the pipe h5b of the hot water supply system body 2 to the pipe h5a. In the following, the same parts as those in the fourth embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts are mainly described.

  This hot water supply system 100N includes a hot water supply system main body 2N in FIG. 14, and a multi-function unit 1N and a heater 7 that can be connected to the hot water supply system main body 2N as shown in FIG.

  As shown in FIGS. 7, 13 and 14, the hot water supply system main body 2N is configured in the same manner as in the fourth embodiment except that the pump P3 is moved from the pipe h5b to the pipe h5a. The multifunction unit 1N is the same as that of the fourth embodiment except that the second pump P2 is moved from the first flow path h1 to the third flow path h3 and the operation of the second control device 17N is changed as follows. It is constructed in the same way as the case. The heater 7 is configured similarly to the third embodiment.

  The second controller 17N controls the heater 7 by controlling the first pump P1, the second pump P2, and the regulating valve 5 in accordance with the input of the heating operation to the operation input unit 13c.

  More specifically, the second controller 17N is configured such that the multifunction unit 1N is connected to the hot water supply system body 2N as shown in FIG. 13 (that is, the multifunction unit 1N is connected to the pump P3 and the hot water storage tank 11 in the fifth flow path h5). 7 and the sixth flow path h6), a control signal (heating means) output from the control unit 13aD to the heat pump heat source unit 9 as shown in FIG. Control signal) s1 and the control signal (pump control signal) s2 output from the control unit 13aD to the pump P3 are relayed, and the first pump P1, the second pump P2, and the regulating valve 5 are switched as shown in FIG. Control.

  That is, in Step Z1, the second control device 17N determines whether the heat pump heat source unit 9 is operating (ie, heating the hot water in the hot water storage tank 11) based on the relayed control signal s1. Since the heat pump heat source unit 9 and the pump P3 are linked by the control unit 13aD, instead of determining whether the heat pump heat source unit 9 is operating based on the control signal s1, based on the control signal s2. It may be determined whether or not the pump P3 is operating. As a result of the determination, if the heat pump heat source unit 9 is operating, the process proceeds to step Z2, and if the heat pump heat source unit 9 is stopped, the process proceeds to step Z7.

  In Step Z2, the second controller 17N confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step Z3. If there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step Z2. Proceed to -2.

  In Step Z3, the second control device 17N relays the control signals s1 and s2 to be relayed without changing the contents so that the hot water in the hot water storage tank 11 is heated and the heater 7 is not operated. And the first pump P1 is stopped, the second pump P2 is operated with the discharge amount specified by the control signal s2 (that is, the same discharge amount as the discharge amount of the pump P3), and the regulating valve 5 is subjected to heat exchange. Control is performed so that the vessel side α is fully closed and the hot water storage tank side β is fully opened. As a result, the heater 7 does not operate, and the hot water in the hot water storage tank 11 circulates in the order of a9 → P2 → 5 → P3 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9. The hot water in the hot water storage tank 11 is heated. Then, the process returns to step Z1.

  In step Z2-2, in response to the instruction to start heating, when the second control device 17N performs control for heating, the process proceeds to step Z5, and the second control device 17N performs control for heating. If not, the process proceeds to step Z4.

  In step Z4, the second control device 17N (a8) sets the contents of the relayed control signals s1 and s2 so that the hot water in the hot water storage tank 11 is heated and the heater 7 operates. (B8) Operate the second pump P2 with a discharge amount smaller than the discharge amount (that is, the discharge amount of the pump P3) specified by the control signal s2 to be relayed, and (c8) adjustment The valve 5 is controlled to a predetermined diversion ratio that ensures the flow of both the heat exchanger side α and the hot water tank side β, and (d8) the first pump P1 is operated.

  As a result, the hot water in the hot water storage tank 11 circulates in the order of a9 → P2 → 5 → P3 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P3 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. 7a-> a11-> a5-> P1-> 3-> a6-> a12-> 7a circulate in this order, and heating is performed by the heater 7.

  Note that, as described above (b8), the second pump P2 is operated with a discharge amount smaller than the discharge amount of the pump P3, so that both the heat exchanger side α and the hot water tank side β are controlled in the regulating valve 5. The flow is ensured without difficulty, and in addition to the circulation of hot water in the hot water storage tank 11 a9 → P2 → 5 → P3 → a7 → 9b → a8 → N2 → a10 → 11, the hot water 5 in the heat exchanger 3 Even if circulation of P3 → a7 → 9b → a8 → N2 → 3 is added, the temperature of hot water from the hot water outlet a8 of the heat pump heat source unit 9 is maintained at the target temperature.

  In addition, when the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 may be lower than the target temperature, or in this embodiment, the discharge amount of the pump P3 is adjustable, but the discharge amount of the pump P3 is When an embodiment that cannot be adjusted is assumed, the control signal s2 to be relayed is relayed to the second control device 17N by changing the relay control signal s2 to a discharge amount larger than the discharge amount specified by the second control device 17N. The control signal s1 to be relayed may be relayed without changing the content, and the second pump P2 may be operated with the discharge amount specified by the control signal s2 to be relayed in (b8). Also in this case, although the target temperature is lowered, heating of the hot water in the hot water storage tank 11 and heating by the heater 7 are performed.

  In Step Z5, the second controller 17N confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to step Z1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step Z3. Proceed to

  In Step Z7, the second controller 17N confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process returns to step Z1, and if there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step Z7. Proceed to -2.

  In Step Z7-2, in response to the instruction to start heating, when the second control device 17N performs control for heating, the process proceeds to Step Z9, and the second control device 17N performs control for heating. If not, the process proceeds to step Z8.

  In step Z8, the second control device 17N causes the relay control signal s1 to be relayed and the heat pump heat source unit 9 to operate so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 operates. And the control signal s2 to be relayed is changed and relayed so that the pump P3 operates, and the regulating valve 5 is controlled to a split ratio that ensures the flow on the heat exchanger side α. (For example, control is performed so that the heat exchanger side α is fully opened and the hot water tank side β is fully closed), and the first pump P1 is operated and the second pump P2 is stopped.

  Thereby, hot water in the heat exchanger 3 circulates in the order of 5 → P3 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b, and the heating liquid in the heater 7 is 7a → a11. Heating is performed by the heater 7 by circulating in the order of a5 → P1 → 3 → a6 → a12 → 7a. Then, the process proceeds to step Z9.

  In Step Z9, the second controller 17N confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no heating stop instruction input to the operation input unit 13c, the process returns to step Z1, and if there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step Z10. Proceed to

  In Step Z10, the second controller 17N does not change the contents of the control signals s1 and s2 that are relayed so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped. (In this case, since the contents of the control signals s1 and s2 are contents for stopping the heat pump heat source unit 9 and the pump P3, respectively, if the contents of the control signals s1 and s2 are not changed, the heat pump heat source unit 9 and The pump P3 is stopped.) And the first pump P1 is stopped. Then, the process returns to step Z1.

  According to the hot water supply system 100N configured as described above, the same effects as those of the fourth embodiment are obtained.

<13th Embodiment>
As shown in FIG. 13, the hot water supply system 100 </ b> L according to this embodiment is similar to the hot water supply system 100 </ b> E (FIG. 1) of the fifth embodiment. This corresponds to the case where the pump P3 is moved from the pipe h5b of the hot water supply system body 2 to the pipe h5a. In the following, the same parts as those in the fifth embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts are mainly described.

  This hot water supply system 100L includes a hot water supply system main body 2L in FIG. 14, and a multi-function unit 1L and a heater 7 that can be connected to the hot water supply system main body 2L as shown in FIG.

  As shown in FIGS. 9, 13 and 14, the hot water supply system main body 2L is configured in the same manner as in the fifth embodiment except that the pump P3 is moved from the pipe h5b to the pipe h5a. The multi-function unit 1L is the same as that of the fifth embodiment except that the second pump P2 is moved from the first flow path h1 to the third flow path h3 and the operation of the second control device 17L is changed as follows. It is constructed in the same way as the case. The heater 7 is configured in the same manner as in the first embodiment.

  The second control device 17L controls the heater 7 by controlling the first pump P1, the second pump P2, and the regulating valve 5 in accordance with the input of the heating operation to the operation input unit 13c.

  More specifically, the second control device 17L is configured such that when the multi-function unit 1L is connected to the hot water supply system body 2L as shown in FIG. 13 (that is, the multi-function unit 1L is connected to the pump P3 and the hot water storage tank 11 in the fifth flow path h5). 9 and the sixth flow path h6), as shown in FIG. 9, from the temperature sensors T1 to T5 of the hot water supply system main body 2L, the remaining hot water amount detection unit 13eE. Is relayed, and the first pump P1, the second pump P2, and the regulating valve 5 are controlled as shown in FIG.

  That is, in step X1, the second control device 17L detects the remaining hot water amount in the hot water storage tank 11 based on the relayed detection signal s3 as in the case of the remaining hot water amount detection unit 13eE, and the remaining hot water amount is equal to or less than the starting remaining hot water amount. It is determined whether or not the amount of remaining hot water is equal to or greater than the amount of remaining hot water, and based on the determination, it is determined whether or not the heat pump heat source unit 9 and the pump P3 are operating. As a result of the determination, when the heat pump heat source unit 9 and the pump P3 are in operation, the process proceeds to step X2, and when the heat pump heat source unit 9 is not in operation, the process proceeds to step X7.

  In Step X2, the second control device 17L confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step X3, and if there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step X2. Proceed to -2.

  In step X2-2, in response to the instruction to start heating, when the second control device 17L performs control for heating, the process proceeds to step X5, and the second control device 17L performs processing for heating. If not, the process proceeds to Step X4.

  In Step X3, the second control device 17L changes the information on the amount of remaining hot water contained in each relayed detection signal s3 so that the hot water in the hot water storage tank 11 is heated and the heater 7 does not operate. (In this case, the information on the amount of remaining hot water included in the detection signal s3 is information corresponding to the amount of remaining hot water for operating the heat pump heat source unit 9 and the pump P3), so the information on the amount of remaining hot water included in each detection signal s3 is used. If not changed, the heat pump heat source unit 9 and the pump P3 are operated. ), The first pump P1 is stopped, the second pump P2 is operated with a predetermined discharge amount (for example, the same discharge amount as the discharge amount of the pump P3), and the adjustment valve 5 It is controlled so that the hot water storage tank side β is fully opened. As a result, the heater 7 does not operate, and the hot water in the hot water storage tank 11 is circulated in the order of a9 → P3 → 5 → P2 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9. The hot water in the hot water storage tank 11 is heated. Then, the process returns to step X1.

  In step X4, the second control device 17L displays (a6) information on the amount of remaining hot water contained in the relayed detection signal s3 so that the hot water in the hot water storage tank 11 is heated and the heater 7 operates. Relay without change, and (b6) operate the second pump P2 with a discharge amount smaller than the discharge amount of the pump P3, and (c6) adjust the valve 5 to both the heat exchanger side α and the hot water tank side β. (D6) The first pump P1 is operated.

  As a result, the hot water in the hot water storage tank 11 circulates in the order of a9 → P2 → 5 → P3 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P2 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. 7a-> a11-> a5-> P1-> 3-> a6-> a12-> 7a circulate in this order, and heating by the heater 7 is performed. Then, the process proceeds to Step X5.

  Note that, as described above (b6), when the second pump P2 is operated with a discharge amount smaller than the discharge amount of the pump P3, both the heat exchanger side α and the hot water tank side β are controlled in the regulating valve 5. The flow is secured without difficulty. In this embodiment, since the discharge amount of the pump P3 cannot be adjusted, the second pump P2 is operated with a discharge amount smaller than the discharge amount of the pump P3 without operating the pump P3 with a discharge amount larger than that of the second pump. ing.

  In Step X5, the second control device 17L confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to Step X1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to Step X3. Proceed to

  In Step X7, the second controller 17L confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no input of the heating start instruction to the operation input unit 13c, the process returns to Step X1, and when there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to Step X7. Proceed to -2.

  In step X7-2, in response to the instruction to start heating, when the second control device 17L performs control for heating, the process proceeds to step X9, and the second control device 17C performs control for heating. If not, the process proceeds to Step X8.

  In Step X8, the second control device 17L changes the relayed detection signal s3 so that the heat pump heat source unit 9 and the pump P3 are operated so that the relayed detection signal s3 is operated so that the heater 7 is operated. In addition to relaying, the first pump P1 is operated, the second pump P2 is stopped, and the control valve 5 is controlled to a flow division ratio that ensures the flow on the heat exchanger side α (for example, the heat exchanger side α is It is controlled so that it is fully open and the hot water storage tank side β is fully closed). Thereby, heating by the heater 7 operates. Then, the process proceeds to Step X9.

  In Step X9, the second control device 17L confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating stop instruction to the operation input unit 13c, the process returns to Step X1, and if there is an input of the heating stop instruction to the operation input unit 13c, the process proceeds to Step X10. Proceed to

  In Step X10, the second control device 17L changes the information on the amount of remaining hot water contained in the relayed detection signal s3 so that heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped. (In this case, the information on the amount of remaining hot water contained in the detection signal s3 is to stop the heat pump heat source unit 9 and the pump P3. Therefore, if the detection signal s3 is relayed without change, the heat pump heat source unit 9 and the pump P3) Is stopped), and the first pump P1 is stopped. Then, the process returns to step X1.

  According to the hot water supply system 100L configured as described above, the same effects as those of the fifth embodiment are obtained.

<Fourteenth embodiment>
As shown in FIG. 13, the hot water supply system 100M according to this embodiment is similar to the hot water supply system 100F (FIG. 1) of the sixth embodiment, in which the second pump P2 is connected to the third flow path from the first flow path h1 of the multi-function unit 1. This corresponds to the case where the pump P3 is moved from the pipe h5b of the hot water supply system body 2 to the pipe h5a. In the following, the same parts as those in the sixth embodiment are denoted by the same reference numerals, description thereof is omitted, and different parts are mainly described.

  This hot water supply system 100M includes a hot water supply system main body 2 shown in FIG. 14, and a multi-function unit 1M and a heater 7 that can be connected to the hot water supply system main body 2M as shown in FIG.

  As shown in FIGS. 9, 13, and 14, the hot water supply system main body 2M is configured in the same manner as in the sixth embodiment, except that the pump P3 is moved from the pipe h5b to the pipe h5a. The multi-function unit 1M is the same as that of the sixth embodiment except that the second pump P2 is moved from the first flow path h1 to the third flow path h3 and the operation of the second control device 17M is changed as follows. It is constructed in the same way as the case. The heater 7 is configured in the same manner as in the sixth embodiment.

  The second control device 17M controls the heater 7 by controlling 1 the first pump P1, the second pump P2, and the regulating valve 5 in accordance with the input of the heating operation to the operation input unit 13c.

  More specifically, the second control device 17M is configured so that the multifunction unit 1M is connected to the hot water supply system body 2M as shown in FIG. 13 (that is, the multifunction unit 1M is connected to the pump P3 and the hot water storage tank 11 in the fifth flow path h5). 9 and the sixth flow path h6), the temperature sensor T1 to T5 outputs the remaining hot water amount detection unit 13eE as shown in FIG. The signal s3 is relayed, and the first pump P1, the second pump P2, and the regulating valve 5 are controlled as shown in FIG.

  That is, in step Y1, the second controller 17M detects the remaining hot water amount in the hot water storage tank 11 based on the relayed detection signal s3, as in the case of the remaining hot water amount detection unit 13eE, and the remaining hot water amount is equal to or less than the starting remaining hot water amount. It is determined whether or not the amount of remaining hot water is equal to or greater than the amount of remaining hot water, and based on the determination, it is determined whether or not the heat pump heat source unit 9 and the pump P3 are operating. As a result of the determination, when the heat pump heat source unit 9 and the pump P3 are in operation, the process proceeds to step Y2, and when the heat pump heat source unit 9 is not in operation, the process proceeds to step Y7.

  In Step Y2, the second controller 17M confirms whether or not there is an instruction to start heating to the operation input unit 13c. As a result of the confirmation, when there is no input of the heating start instruction to the operation input unit 13c, the process proceeds to step Y3, and when there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step Y2. Proceed to -2.

  In step Y2-2, in response to an instruction to start heating, when the second control device 17F performs control for heating, the process proceeds to step Y5, and the second control device 17F performs control for heating. If not, the process proceeds to step Y4.

  In Step Y3, the second control device 17M does not change the information of the remaining hot water contained in the detection signal s3 to be relayed so that the hot water in the hot water storage tank 11 is heated and the heater 7 does not operate. And the first pump P1 is stopped, and the second pump P2 is operated with a discharge amount corresponding to information on the amount of remaining hot water contained in the detection signal s3 (ie, the same discharge amount as that of the pump P3, for example). The control valve 5 is controlled so that the heat exchanger side α is fully closed and the hot water storage tank side β is fully opened. As a result, the heater 7 does not operate, and the hot water in the hot water storage tank 11 circulates in the order of a9 → P2 → 5 → P3 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9. The hot water in the hot water storage tank 11 is heated. Then, the process returns to step Y1.

  In Step Y4, the second controller 17M includes (a7) the second pump P2 in the detection signal s3 that relays the second pump P2 so that the hot water in the hot water storage tank 11 is heated and the heater 7 is activated. The discharge amount corresponding to the information of the remaining hot water amount (that is, the discharge amount of the pump P3 when the first control device 13M operates the pump P3 based on the detection signal s3) is operated with a discharge amount smaller than (b7 ) Relay without changing the information on the amount of remaining hot water contained in the relayed detection signal s3, and (c7) Dividing the regulating valve 5 to ensure the flow on both the heat exchanger side α and the hot water storage tank side β. And (d7) actuate the first pump P1.

  As a result, the hot water in the hot water storage tank 11 circulates in the order of a9 → P2 → 5 → P3 → a7 → 9b → a8 → N2 → a10 → 11 and is heated by the heat pump heat source unit 9, and the hot water in the hot water storage tank 11 is Heated. At the same time, the hot water in the heat exchanger 3 circulates in the order of 5 → P3 → a7 → 9b → a8 → N2 → 3 and is heated by the heat pump heat source unit 9b. It circulates in the order of 7a → a11 → a5 → P1 → 3 → a6 → a12 → 7a, and the heater 7 performs heating. Then, the process proceeds to step Y5.

  If the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 may be lower than the target temperature, it is included in the detection signal s3 relayed by the second controller 17M in (a7) above. The second pump P2 is operated with the discharge amount corresponding to the information on the remaining hot water amount, and the information on the remaining hot water amount contained in the relayed detection signal s3 is operated with the larger discharge amount in (b7) above. It may be changed to. At that time, for example, when the discharge amount of the pump P3 is controlled to be larger as the remaining hot water amount in the hot water storage tank 11 is smaller, the remaining hot water amount is reduced based on the information on the remaining hot water amount included in the relayed detection signal s3. You can change it like this. Further, as in (a7) above, the second pump P2 is operated with a discharge amount smaller than the discharge amount of the pump P3, so that the temperature of the hot water discharged from the hot water outlet a8 of the heat pump heat source unit 9 is maintained at the target temperature. On the other hand, in the regulating valve 5, the flows on both the heat exchanger side α and the hot water tank side β are ensured without difficulty.

  In step Y5, the second controller 17M confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no heating stop instruction input to the operation input unit 13c, the process returns to step Y1, and if there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step Y3. Proceed to

  In Step Y7, the second controller 17M confirms whether or not a heating start instruction is input to the operation input unit 13c. As a result of the confirmation, if there is no input of the heating start instruction to the operation input unit 13c, the process returns to step Y1, and if there is an input of the heating start instruction to the operation input unit 13c, the process proceeds to step Y7. Proceed to -2.

  In Step Y7-2, in response to the instruction to start heating, when the second control device 17M performs control for heating, the process proceeds to Step Y9, and the second control device 17C performs control for heating. If not, the process proceeds to Step Y8.

  In Step Y8, the second control device 17M changes the information of the remaining hot water contained in the detection signal s3 to be relayed so that the heat pump heat source unit 9 and the pump P3 operate so that the heater 7 operates. And the first pump P1 is operated, the second pump P2 is stopped, and the regulating valve 5 is controlled to a diversion ratio that ensures the flow on the heat exchanger side α (for example, the heat exchanger side α is It is controlled so that it is fully open and the hot water storage tank side β is fully closed). Thereby, heating by the heater 7 operates. Then, the process proceeds to Step Y9.

  In Step Y9, the second controller 17M confirms whether or not a heating stop instruction is input to the operation input unit 13c. As a result of the confirmation, when there is no heating stop instruction input to the operation input unit 13c, the process returns to step Y1, and when there is a heating stop instruction input to the operation input unit 13c, the process proceeds to step Y10. Proceed to

  In Step Y10, the second control device 17M relays the detection signal s3 to be relayed without changing so that the heating of the hot water in the hot water storage tank 11 is stopped and the heater 7 is stopped (in this case, Since the information on the amount of remaining hot water contained in the detection signal s3 is to stop the heat pump heat source unit 9 and the pump P3, if the detection signal s3 is relayed without being changed, the heat pump heat source unit 9 and the pump P3 are stopped). The first pump P1 is stopped. Then, the process returns to step Y1.

  According to the hot water supply system 100M configured as described above, the same effect as in the sixth embodiment is obtained.

<Fifteenth embodiment>
As shown in FIG. 19, the hot water supply system 100P according to this embodiment is obtained by omitting the second pump P2 from the hot water supply system 100I according to the ninth embodiment (FIG. 13). Hereinafter, the same parts as those of the ninth embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  This hot water supply system 100P includes a hot water supply system main body 2P of FIG. 14, and a multi-function unit 1P and a heater 7 that can be connected to the hot water supply system main body 2P as shown in FIG.

  As shown in FIG. 19, the multi-function unit 1P is configured in the same manner as the multi-function unit 1I (FIG. 13) of the ninth embodiment except that the second pump P2 is omitted.

  As shown in FIGS. 14 and 20, the hot water supply system body 2P includes a heat pump heat source unit 9, a hot water storage tank 11, and a control device 13P. The heat pump heat source unit 9 and the hot water storage tank 11 are configured in the same manner as in the ninth embodiment.

  The control device 13P is configured in the same manner as the control device 13I (FIG. 3) of the ninth embodiment except that the control regarding the second pump P2 is omitted. That is, the second control function 13bP of the control device 13P is configured in the same manner as the second control function 13bI of the control device 13I except that the control related to the second pump P2 is omitted. 13c to 13f are respectively configured in the same manner as the constituent elements 13a and 13c to 13f of the control device 13I.

  According to the hot water supply system 100P configured as described above, in addition to the same effects as those of the ninth embodiment, the second pump P2 is omitted, which can contribute to cost reduction.

<Sixteenth Embodiment>
As shown in FIG. 19, the hot water supply system 100Q according to this embodiment is obtained by omitting the second pump P2 from the hot water supply system 100J according to the tenth embodiment (FIG. 13). Hereinafter, the same parts as those in the tenth embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  This hot water supply system 100Q includes a hot water supply system main body 2Q shown in FIG. 14, and a multi-function unit 1Q and a heater 7 that can be connected to the hot water supply system main body 2Q as shown in FIG.

  As shown in FIGS. 14 and 21, the hot water supply system main body 2Q includes a heat pump heat source unit 9, a hot water storage tank 11, and a first control device 13Q. The heat pump heat source unit 9 and the hot water storage tank 11 are configured similarly to the case of the tenth embodiment.

  The first control device 13Q is configured in the same manner as the first control device 13J (FIG. 4) of the tenth embodiment except that the control regarding the second pump P2 is omitted. That is, the second control function 13bQ of the control device 13Q is configured in the same manner as the second control function 13bJ of the control device 13J except that the control related to the second pump P2 is omitted, and the other components 13aB, 13c, 13dB, 13e, and 13fB are configured in the same manner as the components 13aB, 13c, 13dB, 13e, and 13fB of the control device 13I, respectively.

  The multi-function unit 1Q is configured similarly to the multi-function unit 1J (FIG. 13) of the tenth embodiment except that the second pump is omitted as shown in FIG. Further, the second control device 17Q of the multi-function unit 1Q is configured in the same manner as the second control device 17J of the multi-function unit 1J except that the control regarding the second pump P2 is omitted as shown in FIG. The

  According to the hot water supply system 100Q configured as described above, in addition to the same effects as those of the tenth embodiment, the second pump P2 is omitted, which can contribute to cost reduction accordingly.

<Seventeenth Embodiment>
As shown in FIG. 19, the hot water supply system 100R according to this embodiment is obtained by omitting the second pump P2 from the hot water supply system 100K of the eleventh embodiment (FIG. 13). Hereinafter, the same parts as those in the eleventh embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  This hot water supply system 100R includes a hot water system main body 2K in FIG. 14, and a multi-function unit 1R and a heater 7 that can be connected to the hot water system main body 2K as shown in FIG. The hot water supply system main body 2K and the heater 7 are configured in the same manner as in the eleventh embodiment.

  As shown in FIG. 22, the multi-function unit 1R is configured in the same manner as the multi-function unit 1K (FIG. 13) of the eleventh embodiment except that the second pump is omitted. Further, the second control device 17R of the multi-function unit 1R is different from the second control device 17K (FIG. 14) of the multi-function unit 1K except that the control regarding the second pump P2 is omitted as shown in FIG. It is comprised similarly.

  The operation of the second control device 13R is the same except that the operation related to the second pump P2 is omitted in the operation (FIG. 16) of the second control device 12K of the eleventh embodiment.

  According to the hot water supply system 100R configured as described above, in addition to the same effects as those in the eleventh embodiment, the second pump P2 is omitted, which can contribute to cost reduction.

<Eighteenth embodiment>
As shown in FIG. 19, the hot water supply system 100S according to this embodiment is obtained by omitting the second pump P2 from the hot water supply system 100N of the twelfth embodiment (FIG. 13). Hereinafter, the same parts as those in the twelfth embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  This hot water supply system 100S includes a hot water supply system main body 2N of FIG. 14, and a multi-function unit 1S and a heater 7 that can be connected to the hot water supply system main body 2N as shown in FIG. The hot water supply system main body 2N and the heater 7 are configured in the same manner as in the twelfth embodiment.

  As shown in FIG. 23, the multi-function unit 1S is configured in the same manner as the multi-function unit 1N (FIG. 13) of the twelfth embodiment except that the second pump P2 is omitted. Further, the second control device 17S of the multi-function unit 1S is different from the second control device 17D (FIG. 15) of the multi-function unit 1N except that the control regarding the second pump P2 is omitted as shown in FIG. It is comprised similarly.

  The operation of the second control device 13S is the same as that of the operation of the second control device 12D of the twelfth embodiment (FIG. 16) except that the control related to the second pump P2 is omitted.

  According to the hot water supply system 100S configured as described above, in addition to the same effects as those of the twelfth embodiment, the second pump P2 is omitted, which can contribute to cost reduction.

<Nineteenth embodiment>
As shown in FIG. 19, the hot water supply system 100T according to this embodiment is obtained by omitting the second pump P2 from the hot water supply system 100L of the thirteenth embodiment (FIG. 13). Hereinafter, the same parts as those in the thirteenth embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  This hot water supply system 100T includes a hot water supply system main body 2L of FIG. 14, and a multi-function unit 1T and a heater 7 that can be connected to the hot water supply system main body 2L as shown in FIG. The hot water supply system main body 2L and the heater 7 are configured in the same manner as in the thirteenth embodiment.

  The multi-function unit 1T is configured similarly to the multi-function unit 1L (FIG. 13) of the thirteenth embodiment except that the second pump P2 is omitted as shown in FIG. Further, as shown in FIG. 24, the second control device 17T of the multi-function unit 1T omits the control relating to the second pump P2 compared to the second control device 17L (FIG. 9) of the multi-function unit 1L of the thirteenth embodiment. The configuration is the same except that the difference is made.

  The operation of the second control device 13T is the same except that the operation related to the second pump P2 is omitted in the operation (FIG. 17) of the second control device 12L of the thirteenth embodiment.

  According to the hot water supply system 100T configured as described above, in addition to the same effects as those of the thirteenth embodiment, the second pump P2 is omitted, which can contribute to cost reduction.

<20th Embodiment>
As shown in FIG. 19, the hot water supply system 100U according to this embodiment is obtained by omitting the second pump P2 from the hot water supply system 100M of the fourteenth embodiment (FIG. 13). Hereinafter, the same parts as those in the fourteenth embodiment are denoted by the same reference numerals, description thereof will be omitted, and different parts will be mainly described.

  This hot water supply system 100U includes a hot water supply system main body 2M in FIG. 14, and a multi-function unit 1U and a heater 7 that can be connected to the hot water supply system main body 2M as shown in FIG. The hot water supply system main body 2M and the heater 7 are configured in the same manner as in the fourteenth embodiment.

  The multi-function unit 1U is configured similarly to the multi-function unit 1M (FIG. 13) of the fourteenth embodiment except that the second pump P2 is omitted as shown in FIG. Further, the second control device 17U of the multi-function unit 1U is different from the second control device 17M (FIG. 9) of the multi-function unit 1M except that the control regarding the second pump P2 is omitted as shown in FIG. It is comprised similarly.

  The operation of the second control device 13T is the same except that the operation related to the second pump P2 is omitted in the operation (FIG. 18) of the second control device 12M of the fourteenth embodiment.

  According to the hot water supply system 100U configured as described above, in addition to the same effects as those of the fourteenth embodiment, the second pump P2 is omitted, which can contribute to cost reduction.

1, 1K to 1M, 1Q to 1U Multifunctional unit 2, 2J to 1N, 2Q, hot water supply system main body 9 Heat pump heat source unit 13, 13B, 13C, 13E to 13M, 13P, 13Q, first controller 17B, 17C, 17E , 17F, 17J to 17M, 17R to 17U Second control device a1 to a5 First to fifth connection ports a7 inlet port a9 discharge port a10 hot water inlet
a13 Hot water outlets h5 to h11 Piping T1 to T5 Temperature sensors P1 to P3 First to third pumps s1 Heating means control signal s2 Pump control signal s3 detection signal

Claims (30)

A hot water supply system (100B) including a multi-function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-functional unit, the hot water storage tank (11), the hot water in the hot water tank heating the against the hot water supply system present body and a heating means for the hot water (9), connectable to the addition of heating function Noh ,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
A second pump (P2) disposed in a portion of the first flow path (h1) between the first connection port (a1) and the regulating valve (5) ,
The hot water system main body is:
The heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for hot water obtained by heating the hot water;
The hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for receiving the hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path (h5) and sending hot water from the discharge port (a9) of the hot water storage tank (11) to the heating means (9) side;
First control means (13B) having a first control function (13aB) for controlling the heating means (9) and the third pump (P3);
With
The multi-function unit is
Second control means (17B) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5) and for controlling the heating means (9) via the first control means. )
Further comprising
In the fifth flow path, the first connection port (a1) of the multi-function unit (1) is connected to the inlet (a7) of the heating unit in a portion between the heating unit and the third pump. The multi-function unit (1) can be connected and connected so that the third connection port (a3) of the multi-function unit is connected to the discharge port side of the hot water storage tank. ,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The first control means controls the second pump and the regulating valve via the second control means, and controls the heating means according to the control from the second control means (13bB). ), And when the multi-function unit is not connected to the fifth flow path (h5) and the sixth flow path (h6), of the first control function and the second control function Only the first control function is operated, and the multi-function unit is interposed and connected to a portion of the fifth flow path between the heating means and the third pump and is also connected to the sixth flow path. When being done, the hot water supply system characterized by operating the 1st control function and the 2nd control function. A hot water supply system (100 C ) including a multi- function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
The first flow path (h1) said first connection port in (a1) and the adjusting valve (5) and a second pump disposed in the portion between (P2)
With
The hot water system main body is:
The heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for hot water obtained by heating the hot water;
The hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for receiving the hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path (h5) and sending hot water from the discharge port (a9) of the hot water storage tank (11) to the heating means (9) side;
The heating means control signal (s1) is output to the heating means (9) to operate the heating means with the heating capacity specified by the heating means control signal, and the third pump (P3) is set to a predetermined value. A first control means (13C) that operates with a discharge amount;
With
The multi-function unit is
Second control means (17C) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5)
Further comprising
In the fifth flow path, the first connection port (a1) of the multi-function unit (1) is connected to the inlet (a7) of the heating unit in a portion between the heating unit and the third pump. The multi-function unit (1) can be connected and connected so that the third connection port (a3) of the multi-function unit is connected to the discharge port side of the hot water storage tank. ,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
In the second control means, the multi-function unit is connected to a portion of the fifth flow path (h5) between the heating means (9) and the third pump (P3), and the sixth control unit. It is connected to the flow path (h6), relays the heating means control signal, and changes the heating means control signal to relay the heating means when the heating means is stopped. In addition, the hot water supply system is characterized in that the first and second pumps are operated, and the control valve is controlled so as to ensure the flow on the heat exchanger side (α) (S8) . A hot water supply system of claim 2 (100 C),
The second control means (17C) changes the heating capacity specified by the relayed heating means control signal to a higher heating capacity when the heating means (9) is in operation, and 1 pump (P1) is operated, the second pump (P2) is operated with a discharge amount larger than the predetermined discharge amount, and the regulating valve (5) is connected to the heat exchanger side (α) and the The hot water supply system is controlled to have a diversion ratio that secures both flows on the heating means side (S4) . A hot water supply system (100D) including a multi-function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
A second pump (P2) disposed in a portion between the first connection port (a1) and the regulating valve (5) in the first flow path (h1);
With
The hot water system main body is:
The heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for hot water obtained by heating the hot water;
The hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for receiving the hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path (h5) and sending hot water from the discharge port (a9) of the hot water storage tank (11) to the heating means (9) side;
The pump control signal (s2) is output to the third pump (P3) to operate the third pump at the discharge amount specified by the pump control signal, and the heating means control signal ( first control means (13D) which outputs s1) and operates the heating means with a predetermined heating capacity;
With
The multi-function unit is
Second control means (17D) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5)
Further comprising
In the fifth flow path, the first connection port (a1) of the multi-function unit (1) is connected to the inlet (a7) of the heating unit in a portion between the heating unit and the third pump. The multi-function unit (1) can be connected and connected so that the third connection port (a3) of the multi-function unit is connected to the discharge port side of the hot water storage tank. ,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multi-function unit is connected to a portion of the fifth flow path (h5) between the heating means and the third pump and is connected to the sixth flow path (h6). It is connected and relays the control signal for heating means and the control signal for pump, and when the heating means is stopped, the control signal for heating means relayed is changed so that the heating means operates. In addition, the flow control signal for the relay is not changed, the first pump and the second pump are operated, and the regulating valve is allowed to flow at the heat exchanger side (α). The hot water supply system characterized by controlling to a ratio (T8) . A hot water supply system according to claim 4 (100 D),
When the heating means is in operation, the second control means (17D) does not change the control signal for the heating means to be relayed, and more than the discharge amount specified by the control signal for the pump to be relayed. The discharge amount is changed to a smaller discharge amount, the first pump (P1) is operated, the second pump is operated with the discharge amount specified by the pump control signal before the change, and the adjustment valve is moved to the heat The hot water supply system is controlled to have a diversion ratio that ensures a flow on both the exchanger side (α) and the hot water storage tank side (β) (T4) . A hot water supply system (100E) including a multi-function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
A second pump (P2) disposed in a portion between the first connection port (a1) and the regulating valve (5) in the first flow path (h1);
With
The hot water system main body is:
The heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for hot water obtained by heating the hot water;
The hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for receiving the hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path (h5) and sending hot water from the discharge port (a9) of the hot water storage tank (11) to the heating means (9) side;
Sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11);
Based on the detection signal (s3) from the sensor, the heating means (9) and the third pump (P3) are controlled to operate the third pump at a predetermined discharge amount, and to turn the heating means on the detection signal. A first control means (13E) that operates with a heating capacity according to the content of
With
The multi-function unit is
Second control means (17E) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5)
Further comprising
In the fifth flow path, the first connection port (a1) of the multi-function unit (1) is connected to the inlet (a7) of the heating unit in a portion between the heating unit and the third pump. The multi-function unit (1) can be connected and connected so that the third connection port (a3) of the multi-function unit is connected to the discharge port side of the hot water storage tank. ,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multi-function unit is connected to a portion of the fifth flow path (h5) between the heating means and the third pump and is connected to the sixth flow path (h6). Interchanged, relays the detection signal, changes the relay detection signal so that the heating means is operated with a required heating capacity, operates the first pump, and the second pump Is operated with a discharge amount larger than the predetermined discharge amount, and the adjustment valve is controlled to a flow dividing ratio that ensures a flow on both the heat exchanger side (α) and the heating means side (β) ( A hot water supply system characterized by U4, U8) . A hot water supply system (100F) including a multi-function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
A second pump (P2) disposed in a portion between the first connection port (a1) and the regulating valve (5) in the first flow path (h1);
With
The hot water system main body is:
The heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for hot water obtained by heating the hot water;
The hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for receiving the hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path (h5) and sending hot water from the discharge port (a9) of the hot water storage tank (11) to the heating means (9) side;
Sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11);
Based on the detection signal (s3) from the sensor, the heating means (9) and the third pump (P3) are controlled to operate the heating means with a predetermined heating capacity and to detect the third pump as the detection signal. First control means (13F) that operates with a discharge amount according to the content of
With
The multi-function unit is
Second control means (17F) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5)
Further comprising
In the fifth flow path, the first connection port (a1) of the multi-function unit (1) is connected to the inlet (a7) of the heating unit in a portion between the heating unit and the third pump. The multi-function unit (1) can be connected and connected so that the third connection port (a3) of the multi-function unit is connected to the discharge port side of the hot water storage tank. ,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multi-function unit is connected to a portion of the fifth flow path (h5) between the heating means and the third pump and is connected to the sixth flow path (h6). Is connected, relays the detection signal, operates the second pump at a required discharge amount, operates the first pump, and the third pump transmits the detection signal to be relayed. It changes so that it may operate | move with the discharge | emission amount smaller than discharge | emission amount, and the said control valve is controlled to the shunt ratio in which the flow of both the said heat exchanger side ((alpha)) and the said heating means side ((beta)) is ensured ( V4, V8) . A hot water supply system (100Q) including a multi-function unit (1Q) and a predetermined hot water system main body (2Q) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
First control means (13Q) having a first control function (15aB) for controlling the heating means (9) and the third pump (P3);
With
The multi-function unit is
Second control means (17Q) for controlling the first pump (P1) and the regulating valve (5) and for controlling the heating means and the third pump via the first control means.
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The first control means controls the regulating valve via the second control means, and also controls a second control function for controlling the heating means and the third pump in accordance with control from the second control means ( 13bQ), and when the multi-function unit is not connected to the fifth flow path (h5) and the sixth flow path (h6), the first control function and the second control function Only the first control function is operated, and the multi-function unit is interposed and connected to a portion of the fifth flow path between the third pump and the hot water storage tank (11) and the sixth flow path. The hot water supply system is characterized in that the first control function and the second control function are actuated when interfacing with each other . A hot water supply system (100R) including a multi-function unit (1R) and a predetermined hot water system main body (2K) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
The heating means control signal (s1) is output to the heating means (9) to operate the heating means with the heating capacity specified by the heating means control signal and to the third pump (P3) the pump control signal. First control means (13K) for outputting (s2) and operating the third pump at a predetermined discharge amount;
With
The multi-function unit is
Second control means (17R) for controlling the first pump (P1) and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and the sixth flow path ( h6), and relays the heating means control signal and the pump control signal. When the heating means and the third pump are stopped, the heating means control signal to be relayed is The relay is changed so that the heating means is operated and relayed, and the control signal for the relay relayed is changed and relayed so that the third pump is operated, and the first pump is operated, and the adjusting valve Is controlled so that the flow on the heat exchanger side (α) is secured (W8) . A hot water supply system (100R) according to claim 9,
The second control means (17R) relays the heating means control signal and the pump control signal without change when the heating means and the third pump are in operation, and the first pump And the control valve is controlled to a diversion ratio that ensures the flow on both the heat exchanger side (α) and the heat pump heat source side (β) (W4) . A hot water supply system (100S) including a multi-function unit (1S) and a predetermined hot water system main body (2N) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
A heating means control signal (s1) is output to the heating means (9) to operate the heating means (9) with a predetermined heating capacity, and a pump control signal (s2) is sent to the third pump (P3). And a first control means (13N) for operating the third pump at a discharge amount specified by the pump control signal;
With
The multi-function unit is
Second control means (17S) for controlling the first pump (P1) and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and the sixth flow path ( h6), and relays the heating means control signal and the pump control signal. When the heating means and the third pump are stopped, the heating means control signal to be relayed is The relay is changed so that the heating means is operated and relayed, and the control signal for the relay relayed is changed and relayed so that the third pump is operated, and the first pump is operated, and the adjusting valve Is controlled so that the flow on the heat exchanger side (α) is secured (Z8) . A hot water supply system of claim 1 1 (100 S),
The second control means (17S) outputs the heating means control signal (s1) and the pump control signal (s2) when the heating means (9) and the third pump (P3) are in operation. It relays without change, operates the first pump (P1), and ensures that the regulating valve (5) flows on both the heat exchanger side (α) and the heat pump heat source unit side (β). The hot water supply system is characterized in that the diversion ratio is controlled (Z4) . A hot water supply system (100T) including a multi-function unit (1T) and a predetermined hot water system main body (2L) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
Sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11);
Based on the detection signal (s3) from the sensor, the heating means (9) and the third pump (P3) are controlled to operate the third pump at a predetermined discharge amount, and to turn the heating means on the detection signal. The first control means (13L) that operates with the heating capacity according to the content of
With
The multi-function unit is
Second control means (17T) for controlling the first pump (P1) and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank and is connected to the sixth flow path (h6). When the heating means and the third pump are stopped, the detection signal to be relayed is changed so that the heating means and the third pump are operated. A hot water supply system that relays and operates the first pump and controls the regulating valve to a diversion ratio that ensures a flow on the heat exchanger side (α) (X8) . A hot water supply system of claim 1 3 (100 T),
The second control means (17T) relays without changing the detection signal to be relayed when the heating means and the third pump are in operation, operates the first pump, and A hot water supply system characterized in that the regulating valve is controlled to a diversion ratio that ensures a flow on both the heat exchanger side (α) and the hot water storage tank side (β) (X4) . A hot water supply system (100U) including a multi-function unit (1U) and a predetermined hot water system main body (2M) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
Sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11);
Based on the detection signal (s3) from the sensor, the heating means (9) and the third pump (P3) are controlled to operate the heating means with a predetermined heating capacity and to detect the third pump as the detection signal. First control means (13M) that operates with a discharge amount according to the content of
With
The multi-function unit is
Second control means (17U) for controlling the first pump (P1) and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank and is connected to the sixth flow path (h6). In the case where the detection signal is relayed and the detection signal is relayed and the heating unit and the third pump are stopped, information on the remaining hot water amount or the remaining hot water temperature included in the detection signal to be relayed is provided on the heating unit and the The relay is changed so as to operate the third pump, and the first pump is operated, and the adjusting valve is controlled to a diversion ratio that ensures the flow on the heat exchanger side (α) (Y8). A hot water supply system characterized by that. A hot water supply system of claim 1 5 (100 U),
When the heating means (9) and the third pump (P3) are in operation, the second control means (17U) changes information on the amount of remaining hot water or the temperature of the remaining hot water contained in the detection signal that is relayed. And the control valve (5) is controlled to a diversion ratio that secures both the heat exchanger side (α) and the heating means side (β) (Y4). Hot water supply system. A hot water supply system (100) including a multi-function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
A second pump (P2) disposed in a portion between the first connection port (a1) and the regulating valve (5) in the first flow path (h1);
With
The hot water system main body is:
The heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for hot water obtained by heating the hot water;
The hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for receiving the hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path (h5) and sending hot water from the discharge port (a9) of the hot water storage tank (11) to the heating means (9) side;
A first control function (13a) for controlling the heating means (9) and the third pump (P3), and a second control function (13b) for controlling the first pump (P1) and the regulating valve (5). And when the multi-function unit (1) is not connected to the fifth flow path (h5) and the sixth flow path (h6), of the first and second control functions, Control means for operating only the first control function and operating the first and second control functions when the multi-function unit is connected to the fifth flow path and the sixth flow path. 13) and
With
In the fifth flow path, the first connection port (a1) of the multi-function unit (1) is connected to the inlet (a7) of the heating unit in a portion between the heating unit and the third pump. The multi-function unit (1) can be connected and connected so that the third connection port (a3) of the multi-function unit is connected to the discharge port side of the hot water storage tank. ,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The hot water supply system is characterized in that the multifunctional unit can be connected to be connected to the side . A hot water supply system (100P) including a multi-function unit (1P) and a predetermined hot water system main body (2P) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
A first control function (13a) for controlling the heating means (9) and the third pump (P3), and a second control function (13bP) for controlling the first pump (P1) and the regulating valve (5) And when the multi-function unit (1P) is not connected to the fifth flow path (h5) and the sixth flow path (h6), of the first and second control functions, Control means for operating only the first control function and operating the first and second control functions when the multi-function unit is connected to the fifth flow path and the sixth flow path. 13P) and
With
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The hot water supply system is characterized in that the multifunctional unit can be connected to be connected to the side . A hot water supply system (100H) including a multi-function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
A second pump (P2) disposed in a portion between the first connection port (a1) and the regulating valve (5) in the first flow path (h1);
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
First control means (13H) having a first control function (13a) for controlling the heating means (9);
With
The multi-function unit is
Second control means (17B) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5) and for controlling the heating means (9) via the first control means. )
Further comprising
In the fifth flow path, the first connection port of the multifunction unit is connected to the inlet side of the heating means, and the third connection port of the multifunction unit is the discharge port of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The first control means controls the second pump and the regulating valve via the second control means, and controls the heating means according to the control from the second control means (13b). ), And when the multi-function unit is not connected to the fifth flow path (h5) and the sixth flow path (h6), of the first control function and the second control function When only the first control function is activated and the multi-function unit is connected to the fifth flow path and the sixth flow path, the first control function and the second control function are activated. Hot water supply system characterized by A hot water supply system (100J) including a multi-function unit (1J) and a predetermined hot water system main body (2J) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
The multifunctional unit is disposed in the third flow path (h3), and a second pump (P2) that sends hot water flowing in from the third connection port (a3) to the regulating valve (5) side.
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
First control means (13J) having a first control function (13aB) for controlling the heating means (9) and the third pump (P3);
With
The multi-function unit is
The first pump (P1), the second pump (P2) and the regulating valve (5) are controlled, and the heating means (9) and the third pump are controlled via the first control means. 2 Control means (17J)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The first control means controls the second pump and the regulating valve via the second control means, and controls the heating means and the third pump in accordance with control from the second control means. When the second control function (13bJ) is further included and the multi-function unit is not connected to the fifth flow path (h5) and the sixth flow path (h6), the first control function and the first control function Only the first control function of the two control functions is operated, and the multi-function unit is interposed and connected to a portion of the fifth flow path between the third pump and the hot water storage tank (11). The hot water supply system , wherein the first control function and the second control function are operated when the sixth flow path is connected . A hot water supply system (100K) including a multi-function unit (1K) and a predetermined hot water system main body (2K) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
The multifunctional unit is disposed in the third flow path (h3), and a second pump (P2) that sends hot water flowing in from the third connection port (a3) to the regulating valve (5) side.
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
The heating means control signal (s1) is output to the heating means (9) to operate the heating means with the heating capacity specified by the heating means control signal and to the third pump (P3) the pump control signal. First control means (13K) for outputting (s2) and operating the third pump at a predetermined discharge amount;
With
The multi-function unit is
Second control means (17K) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and the sixth flow path ( h6), and relays the heating means control signal and the pump control signal. When the heating means and the third pump are stopped, the heating means control signal to be relayed is The relay is changed so that the heating means is operated and relayed, the relay control signal for the relay is changed and relayed so that the third pump is operated, the first pump is operated, and the second pump is operated. The hot water supply system is characterized in that the pump is stopped and the regulating valve (5) is controlled (W8) so as to ensure the flow on the heat exchanger side (α) . A hot water supply system of claim 21 (100 K),
The second control means (17K) relays the heating means control signal and the pump control signal without change when the heating means and the third pump are in operation, and the first pump And the second pump is operated with a discharge amount smaller than the predetermined discharge amount, and the regulating valve (5) is operated on both the heat exchanger side (α) and the heat pump heat source unit side (β). The hot water supply system is controlled to have a diversion ratio that secures the flow of water (W4) . A hot water supply system (100N) including a multi-function unit (1N) and a predetermined hot water system main body (2N) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
The multifunctional unit is disposed in the third flow path (h3), and a second pump (P2) that sends hot water flowing in from the third connection port (a3) to the regulating valve (5) side.
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
A heating means control signal (s1) is output to the heating means (9) to operate the heating means (9) with a predetermined heating capacity, and a pump control signal (s2) is sent to the third pump (P3). And a first control means (13N) for operating the third pump at a discharge amount specified by the pump control signal;
With
The multi-function unit is
Second control means (17N) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank (11) and the sixth flow path ( h6), and relays the heating means control signal and the pump control signal. When the heating means and the third pump are stopped, the heating means control signal to be relayed is The relay is changed so that the heating means is operated and relayed, the relay control signal for the relay is changed so that the third pump is operated, the first pump is operated, and the second pump is operated. The hot water supply system is characterized in that the pump is stopped and the regulating valve is controlled (Z8) so that the flow on the heat exchanger side (α) is secured . A hot water supply system (100 N ) according to claim 23,
The second control means (17N) outputs the heating means control signal (s1) and the pump control signal (s2) when the heating means (9) and the third pump (P3) are in operation. Relay without change, operate the first pump (P1), operate the second pump (P2) with a discharge amount smaller than the discharge amount specified by the pump control signal, and The hot water supply system characterized in that the regulating valve (5) is controlled (Z4) to a diversion ratio that ensures a flow on both the heat exchanger side (α) and the heat pump heat source unit side (β) . A hot water supply system (100L) including a multi-function unit (1L) and a predetermined hot water system main body (2L) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
The multifunctional unit is disposed in the third flow path (h3), and a second pump (P2) that sends hot water flowing in from the third connection port (a3) to the regulating valve (5) side.
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
Sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11);
Based on the detection signal (s3) from the sensor, the heating means (9) and the third pump (P3) are controlled to operate the third pump at a predetermined discharge amount, and to turn the heating means on the detection signal. The first control means (13L) that operates with the heating capacity according to the content of
With
The multi-function unit is
Second control means (17L) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank and is connected to the sixth flow path (h6). When the heating means and the third pump are stopped, the detection signal to be relayed is changed so that the heating means and the third pump are operated. Relaying, operating the first pump, stopping the second pump, and controlling the regulating valve to a diversion ratio that ensures a flow on the heat exchanger side (α) (X8) . A hot water supply system that is characteristic. A hot water supply system of claim 25 (100 L),
The second control means (17L) relays without changing the detection signal to be relayed when the heating means and the third pump are in operation, operates the first pump, and The second pump is operated with a discharge amount smaller than the predetermined discharge amount, and the regulating valve has a flow dividing ratio that ensures the flow on both the heat exchanger side (α) and the hot water storage tank side (β). A hot water supply system characterized by controlling (X4) . A hot water supply system (100M) including a multi-function unit (1M) and a predetermined hot water system main body (2M) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
The multifunctional unit is disposed in the third flow path (h3), and a second pump (P2) that sends hot water flowing in from the third connection port (a3) to the regulating valve (5) side.
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
Sensors (T1 to T5) for detecting a remaining hot water amount or a remaining hot water temperature of the hot water storage tank (11);
Based on the detection signal (s3) from the sensor, the heating means (9) and the third pump (P3) are controlled to operate the heating means with a predetermined heating capacity and to detect the third pump as the detection signal. First control means (13M) that operates with a discharge amount according to the content of
With
The multi-function unit is
Second control means (17M) for controlling the first pump (P1), the second pump (P2), and the regulating valve (5)
Further comprising
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
The second control means is configured such that the multifunction unit is connected to a portion of the fifth flow path (h5) between the third pump and the hot water storage tank and is connected to the sixth flow path (h6). In the case where the detection signal is relayed and the detection signal is relayed and the heating unit and the third pump are stopped, information on the remaining hot water amount or the remaining hot water temperature included in the detection signal to be relayed is provided on the heating unit and the The relay is changed so that the third pump is operated, the first pump is operated, the second pump is stopped, and the regulating valve is flowed on the heat exchanger side (α). The hot water supply system is controlled to have a diversion ratio (Y8) . A hot water supply system of claim 27 (100 M),
When the heating means (9) and the third pump (P3) are in operation, the second control means (17M) changes information on the amount of remaining hot water or the temperature of the remaining hot water contained in the detection signal to be relayed. And the first pump (P1) is operated, and the discharge amount is smaller than the discharge amount corresponding to the information on the remaining hot water amount or the remaining hot water temperature included in the detection signal relayed. 2 The pump (P2) is operated, and the regulating valve (5) is controlled to a diversion ratio that ensures the flow on both the heat exchanger side (α) and the heating means side (β) (Y4). Hot water supply system characterized by A hot water supply system (100G) including a multi-function unit (1) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
A second pump (P2) disposed in a portion between the first connection port (a1) and the regulating valve (5) in the first flow path (h1);
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A first control function (13a) for controlling the heating means (9), and a second control function (13b, 13) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5). 13bI), and when the multi-function unit (1, 1I) is not connected to the fifth channel (h5) and the sixth channel (h6), the first and second controls When only the first control function among the functions is operated and the multi-function unit is connected to the fifth flow path and the sixth flow path, the first and second control functions are operated. Control means (13G, 13I)
With
In the fifth flow path, the first connection port of the multifunction unit is connected to the inlet side of the heating means, and the third connection port of the multifunction unit is the discharge port of the hot water storage tank. The multi-function unit can be connected so that it is connected to the side,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The hot water supply system is characterized in that the multifunctional unit can be connected to be connected to the side . A hot water supply system (100I) including a multi-function unit (1I) and a predetermined hot water system main body (2) connectable to the multi-function unit,
The multi-function unit can be connected to the hot water supply system body including a hot water storage tank (11) and a heating means (9) that heats the hot water in the hot water storage tank into hot water so as to add a heating function. There,
The multi-function unit is
A first connection port (a1) to which a pipe (h5a) from an inflow port (a7) into which the hot water flows in the heating means can be connected;
A second connection port (a2) to which a pipe (h6a) from a hot water outlet (a8) from which the hot water in the heating means is discharged; and
A third connection port (a3) to which a pipe (h5b) from a discharge port (a9) from which the hot water is discharged in the hot water storage tank can be connected;
A fourth connection port (a4) to which a pipe (h6a) from a hot water inlet (a10) into which the hot water enters the hot water storage tank can be connected;
One of the pipe (h12) from the discharge port (a11) from which the heating liquid is discharged in the predetermined heater (7) and the pipe (h13) from the inlet (a11) into which the heating liquid flows is A connectable fifth connection port (a5);
A sixth connection port (a6) to which the other of the discharge port and the inflow port in the predetermined heater can be connected;
A first flow path (h1) connecting the first connection port and the second connection port;
A second flow path (h2) connecting the fifth connection port and the sixth connection port;
A heat exchanger (3) for exchanging heat between the fluid flowing in the first flow path and the fluid flowing in the second flow path;
A third flow path (h3) connecting the third connection port in a branched manner to a portion of the first flow path between the heat exchanger and the first connection port;
A fourth flow path (h4) connecting the fourth connection port in a branched manner to a portion of the first flow path between the heat exchanger and the second connection port;
A regulating valve (5) disposed at a branch point (N1) between the first channel and the third channel or a branch point (N2) between the first channel and the fourth channel;
A first pump (P1) disposed in the second flow path;
The multifunctional unit is disposed in the third flow path (h3), and a second pump (P2) that sends hot water flowing in from the third connection port (a3) to the regulating valve (5) side.
With
The hot water system main body is:
A heating means (9) having an inlet (a7) through which hot water flows and a hot water outlet (a8) for discharging hot water obtained by heating the hot water;
A hot water storage tank (11) having a discharge port (a9) for discharging hot water therein and a hot water inlet (a10) for hot water discharged from the heating means;
A fifth flow path (h5) connecting the discharge port of the hot water storage tank and the inlet of the heating means;
A sixth flow path (h6) connecting the hot water inlet of the hot water storage tank and the hot water outlet of the heating means;
A third pump (P3) disposed in the fifth flow path and sending hot water from the discharge port of the hot water storage tank to the heating means side;
A first control function (13a) for controlling the heating means (9), and a second control function (13bI) for controlling the first pump (P1), the second pump (P2) and the regulating valve (5). And when the multi-function unit (1I) is not connected to the fifth flow path (h5) and the sixth flow path (h6), of the first and second control functions, Control means for operating only the first control function and operating the first and second control functions when the multi-function unit is connected to the fifth flow path and the sixth flow path. 13I)
With
In the portion between the third pump and the hot water storage tank, the first connection port of the multi-function unit is connected to the inlet side of the heating means in the fifth flow path and the multi-function The multi-function unit can be connected and connected so that the third connection port of the unit is connected to the discharge port side of the hot water storage tank,
In the sixth flow path, the second connection port of the multi-function unit is connected to the hot water outlet side of the heating means, and the fourth connection port of the multi-function unit is the hot water inlet of the hot water storage tank. The hot water supply system is characterized in that the multifunctional unit can be connected to be connected to the side .

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