JP2013155916A - Hot water type floor heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water type floor heating device that can save energy without spoiling a feeling of warmth by floor heating that a user sets.SOLUTION: Hot water supply based upon a target control temperature α corresponding to a set temperature that a user sets is performed in spite of a selection command from an economical operation selection switch to raise a floor heating temperature in a room up to a set temperature Ts that a user sets first, and the hot water supply is carried on until the set time S1 passes. The target control temperature is switched thereafter from α to α-1 which is a predetermined quantity lower, and then hot water supply based upon the target control temperature α-1 is performed. Consequently, the floor heating temperature falls to Ts'. This continues until a set time S2 passes, and the target control temperature is switched down from α-1 to α-2 to perform hot water supply based upon the target control temperature α-2. Consequently, the floor heating temperature falls to Ts".

Description

  The present invention relates to a hot water type floor heating apparatus, and particularly relates to a technology capable of realizing energy saving while ensuring a warm feeling that a user feels warm.

  Conventionally, as a hot water type floor heating device, for example, Patent Document 1 has proposed a method of controlling the supply of hot water to a floor heating terminal so that a set room temperature set by a user is obtained. Specifically, the heat release level is set according to the temperature difference between the set room temperature set by the user and the temperature detected by the room temperature sensor at that time, and the burner heating amount is controlled according to the set heat release level. In addition, the valve opening time of the on-off valve for supplying hot water to the floor heating terminal is controlled according to the set level.

JP 2003-302067 A

  By the way, in response to a request for energy saving, efforts are being made to develop an operation control aiming at energy saving in a hot water type floor heating apparatus. For example, in the case of a configuration that does not include an indoor temperature sensor, the number of heating stages set by the user (for example, the number of stages selected and set from the heating intensity levels preset in 1 to 9 stages) is “4”, for example. Even so, it is possible to change and set “3”, which is one step lower than “4”, as the target value for the heating operation control, and to execute the modest operation control so that the heat supply corresponding to the third step is achieved. It is done. In this case, the heat amount supply corresponding to the four stages when the normal heating operation control is executed and the heat amount difference between the heat supply corresponding to the three stages when the conservative operation control is executed, specifically, Energy saving can be achieved by the amount of fuel corresponding to the difference in heat quantity. Such discreet operation control can be similarly performed when heating operation control is performed based on the heating temperature instead of the number of heating stages. That is, a temperature value lower than a set temperature set by the user for floor heating by a predetermined temperature (for example, 1 degree) is changed and set as a target value for the heating operation control so that the target temperature is changed to a lower target temperature. The amount of heat supply control is executed.

  However, in this case, although the user sets the number of heating stages or the set temperature in anticipation of the warmth (feeling of warmth) corresponding to the four stages or the set temperature, it cannot be obtained as a bodily sensation. Become. For this reason, as a user, it is considered to save energy, or in order to obtain a warm feeling corresponding to the original four stages or set temperature, the number of heating stages is increased by one stage to five stages or the set temperature. It is thought that it will take the action of re-setting higher.

  This invention is made in view of such a situation, The place made into the objective is the hot water type floor heating apparatus which can implement | achieve energy saving, without impairing the warmth feeling by the floor heating which the user set. It is to provide.

  In order to achieve the above object, the present invention heats a space in which the floor heating terminal is installed by circulating and supplying hot water as a heat source to the floor heating terminal from a hot water supply source having a heating source. Floor heating setting means for inputting and setting a floor heating degree (details of the floor heating degree will be described later), and a floor heating degree input to the floor heating setting means. The following specific items are provided for a hot water type floor heating apparatus including a floor heating control means for performing heating operation control. That is, as the floor heating control means, initial operation control is performed with the floor heating degree set by the floor heating setting means as a target value, and after the heating operation of the set floor heating degree is satisfied, the set floor heating degree is satisfied. The floor heating degree is lower than the predetermined amount than the eco operation control with the target value.

  In the case of the present invention, even when the eco operation control is executed, first, the heating operation is performed to the floor heating degree that the user intentionally inputs and set by the initial operation control, and thereby the floor heating terminal is installed. Since the space is heated to the floor heating level intended by the user, it is possible to experience the warmth (warm feeling) intended by the user and to give satisfaction. On the other hand, after that, it is possible to surely realize energy saving by executing the eco operation control with the floor heating degree set as a target value by lowering the set floor heating degree by a predetermined amount. As described above, it is possible to ensure energy saving while ensuring the warmth intended by the user.

  The floor heating control means of the present invention can be configured to execute the eco operation control if a set time elapses while the heating operation of the set floor heating degree is satisfied (Claim 2). By doing in this way, after maintaining the state where the space where the floor heating terminal is installed is heated to the floor heating degree intended by the user for the set time, the user switches to the eco operation control. It is possible to more reliably ensure that the user feels the warmth (feeling of warmth) intended to give satisfaction to the user.

  In this case, the set time can be changed and set according to the environmental temperature as follows without using the fixed time value. That is, an outside air temperature sensor that detects the temperature of the external environment of the space is provided, and the set time is changed as the floor heating control means based on whether the temperature detected by the outside air temperature sensor is high or low. (Claim 3). For example, the set time can be changed to be shorter if the detected temperature of the outside air temperature sensor is higher and longer if the detected temperature is lower. Alternatively, it is provided with a room temperature sensor that detects the temperature of the internal environment of the space, and as the floor heating control means, while storing the detected temperature of the room temperature sensor at the time of execution of initial operation control, the set time, It can be set as the structure changed based on the level of the said stored detection temperature (Claim 4). For example, the set time can be changed to be shorter if the detected temperature of the room temperature sensor is higher and longer if the detected temperature is lower. By doing so, it is possible to match the characteristic that the warm feeling felt by the user changes depending on the temperature of the external environment and the internal environment, and the warmth (warm feeling) intended by the user can be experienced. It is possible to ensure the effect of giving the user a sense of satisfaction even more reliably.

  Further, as the eco operation control in the floor heating control means, the floor heating degree is continuously changed to the target value (Claim 5), or the floor heating degree is lowered stepwise to the target value. The configuration may be changed (claim 6). By doing so, compared to changing the floor heating degree to the target value at a stretch, the room temperature change experienced by the user becomes gradual, and it is possible to maintain the feeling of warmth without letting the user notice the room temperature change. At the same time, greater energy savings can be achieved. In this case, it is possible to obtain the effect of maintaining warmth without making the user notice the change in room temperature more effectively when changing continuously low than when changing it stepwise. It becomes.

  Furthermore, as the floor heating control means in the hot water type floor heating apparatus of the present invention, it is possible to receive an output of a selection command for selecting execution of the eco operation control and switch from initial operation control to eco operation control ( Claim 7). By doing so, it is possible to switch whether or not to perform eco-driving control based on the user's own selection, and energy saving can be realized with priority given to the convenience of the user.

  As described above, according to the hot water type floor heating apparatus of the present invention, even when the eco operation control is executed, first, the heating operation is performed to the set floor heating degree intended by the user by the initial operation control. As a result, the space in which the floor heating terminal is installed can be heated to the floor heating degree intended by the user, so that the warmth (feeling of warmth) desired by the user can be surely experienced and given satisfaction. Can do. On the other hand, after that, eco-operation control is performed with the floor heating degree obtained by lowering the set floor heating degree by a predetermined amount as a target value, so that energy saving can be reliably realized. As described above, energy conservation can be ensured while ensuring the warmth intended by the user.

  In particular, according to claim 2, the floor heating terminal is configured to execute the eco operation control when the set time elapses while the heating operation of the set floor heating degree is satisfied as the floor heating control means. The space where the space is installed up to the floor heating level intended by the user can be maintained for a set time, and then the operation is switched to the eco operation control. It can be ensured more reliably that the user can feel the warmth (feeling of warmth) and give the user satisfaction.

  According to a third aspect of the present invention, the set time of claim 2 is changed based on whether the detected temperature of the outside air temperature sensor is high or low, or the set time of claim 2 is set to the detected temperature of the room temperature sensor. According to claim 4, which is configured to change based on the height, it can be matched with the characteristic that the feeling of warmth felt by the user changes according to the temperature of the external environment or the internal environment, and the user intends The effect of giving the user a sense of satisfaction by experiencing the warmth (warmth) can be more reliably ensured.

  According to claim 5, as eco-operation control in the floor heating control means, the floor heating degree is continuously changed to a target value, or according to claim 6, floor heating control is performed. As an eco-operation control in the means, the floor heating degree is gradually lowered to the target value, so that the room temperature change experienced by the user can be moderated compared to the case where the floor heating degree is changed to the target value at once. It is possible to maintain a warm feeling without notifying the user of a change in room temperature. At the same time, greater energy savings can be achieved. In this case, the effect of maintaining the feeling of warmth in the case of Claim 5 that is continuously changed to lower than the case of Claim 6 that is changed in a stepwise manner without causing the user to notice a change in room temperature, You can get bigger.

  Further, according to claim 7, the floor heating control means receives the output of the selection command for selecting the execution of the eco-operation control, and switches from the initial operation control to the eco-operation control, so that the user's own selection It is possible to switch whether or not to execute eco-drive control based on the above, and to realize energy saving with priority given to the convenience of the user.

It is a mimetic diagram of a warm water type floor heating device concerning an embodiment of the present invention. It is a block diagram which concerns on the control structure of 1st Embodiment of the hot water type floor heating apparatus of FIG. It is a related figure of time, floor heating temperature, etc. by eco operation control of this embodiment. It is a block diagram which concerns on the control structure of 2nd Embodiment of the hot water type floor heating apparatus of FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a schematic diagram of a hot water floor heating apparatus according to an embodiment of the present invention. This hot water type floor heating device circulates and supplies predetermined hot water to a floor heating panel 4 that is a floor heating terminal through a hot water circulation path 3 that extends from a heat source device 2 that is a hot water supply source, and radiates heat by the floor heating panel 4. Thus, the room (space) in which the floor heating panel 4 is installed is heated. Then, such operation control for heating is realized based on mutual communication between the floor heating remote controller 5a or 5b disposed in the room and the heat source controller 21 incorporated in the heat source unit 2. It has become. A combination of the floor heating remote controller 5a or 5b and the heat source controller 21 constitutes a floor heating control means. Hereinafter, the case where the floor heating remote controller 5a includes the room temperature sensor 55 will be described in the first embodiment, and the case where the floor heating remote controller 5b includes the room temperature sensor 55 (the example of FIG. 1 includes the room temperature sensor 55). Case) is shown in the second embodiment. The first embodiment and the second embodiment are different only in the presence or absence of the room temperature sensor 55, and the other components are the same as each other. The duplicated detailed description is omitted.

The heat source device 2 is usually installed at a predetermined outdoor position (the outer wall of the building or the wall of the water heater room), and is connected to the indoor floor heating panel 4 by the hot water circulation path 3. The heat source unit 2 includes a hot water supply switching valve 22 and a circulation pump 23 interposed in a flow path in the heat source unit 3 in the hot water circulation path 3 in addition to a combustion burner and an expansion tank (not shown) as a heat source. It is a thing. The hot water supply switching valve 22 is constituted by a thermally operated valve, for example. In addition to the flow path in the heat source device 2, the hot water circulation path 3 is formed by being connected to the flow path and penetrating from the outside through the building wall 6 to the floor heating panel 4 in the room. The flow path is divided into functions, and when divided into functions, the heat source device 2 supplies the hot water for the heat source to the hot water floor heating panel 4, and the hot water whose temperature is reduced by the heat radiation from the floor heating panel 4. It consists of a return path 32 for returning to the heat source unit 2. The floor heating panel 4 is embedded with a hot water flow path 41 for circulating and supplying hot water. The downstream end of the forward path 31 is connected to the inlet of the hot water flow path 41 and the return path 32 is upstream of the outlet. The ends are connected. Accordingly, when the hot water supply switching valve 22 is opened and switched by the heat source device controller 21 and the circulation pump 23 is operated, the hot water is supplied from the heat source device 2 to the floor heating panel 4 through the outgoing path 31 of the hot water circulation path 3. The hot water is circulated and supplied in such a manner that heat is radiated while passing through the panel 4 and the hot water whose temperature is reduced by the heat radiation is returned to the heat source unit 2 through the return path 32. That is, the hot water supplied from the heat source device 2 is used as a heat source for radiating heat from the floor heating panel 4, and the amount of heat released from the floor heating panel 4 (based on the supplied hot water by changing the hot water temperature or changing the duration of hot water supply) The amount of heat) can be changed.
<First Embodiment>

  The floor heating remote controller 5a also functions as floor heating setting means, and is provided with a display unit 51 such as liquid crystal, an operation switch 52, an eco selection switch 53, a stage number setting input unit 54, and the floor heating panel 4. In addition to the room temperature sensor 55 that detects the room temperature (the temperature of the internal environment) in the room, as shown in FIG. 2, a floor heating control unit 56a that performs normal operation control, and an eco operation control unit that performs eco operation control 57a. The stage number setting input unit 54 operates the up / down operation switch 541 to display a plurality of stages indicating the degree of floor heating (for example, the number of stages 1-9; the larger the number of stages, the stronger the floor heating is displayed). If a desired number of stages is selected from the display 542, the number of stages is set and input. Then, the heating operation control described later is executed based on the set and input number of stages. In the floor heating control unit 56a, preset temperatures corresponding to each of the nine stages are stored and set in advance. In the heating operation control described later, a preset temperature corresponding to the number of stages input by the user is set. The operation control is executed based on the determined set temperature.

  When the user sets the desired number of steps with the step number setting input unit 54 and turns on the operation switch 52, the normal operation control by the floor heating control unit 56a is started unless the eco selection switch 53 is turned on. The That is, first, the detected room temperature detected by the room temperature sensor 55 is temporarily stored, while the target control temperature corresponding to the temperature difference between the set temperature and the detected room temperature is set, and the control related to the set target control temperature is performed. A signal is sent to the heat source machine controller 21. This target control temperature represents the floor heating degree. In order to set the target control temperature based on the temperature difference, for example, a target control temperature table in which the target control temperature is set in advance according to the magnitude of the temperature difference is stored and stored. Read from the table.

  The heat source controller 21 controls the operation of the combustion system 24 including the combustion burner, the hot water supply switching valve 22 and the circulation pump 23 based on various control commands sent from the floor heating remote controller 5a, and information on the hot water temperature. Is sent to the floor heating remote controller 5a. As a result, hot water at a predetermined temperature is circulated and supplied intermittently to the floor heating panel 4 at a predetermined control cycle, and the room temperature is raised to the set temperature by heat radiation from the floor heating panel 4, and the heating state at the set temperature is maintained. Will be. An example of control for realizing heat radiation of a predetermined heat radiation amount from the floor heating panel 4 by supplying hot water from such a heat source device 2 is as follows. Hot water of a plurality of types of temperatures (for example, 60 ° C. low temperature water and 72 ° C. In the case of using two types of hot water with high-temperature water), the floor heating remote controller 5a is supplied with the hot water temperature for each target control temperature and the control cycle of the hot water supply switching valve 22 (for example, a cycle of 20 minutes). A combination with each valve opening duration is set in advance, and operation control of the heat source unit 2 is executed by communication with the heat source unit controller 21 based on this combination. As a specific control example, the floor heating remote controller 5a opens the valve at each control cycle for the hot water temperature based on the set target control temperature and information on the actual hot water temperature supplied from the heat source device controller 21. A continuation time (for example, 17 minutes in a control cycle of 20 minutes) is set, and for each control cycle, an operation ON command for the heat source device 2, a valve opening command for the hot water supply switching valve 22, and the heat source device controller 21. Sends a valve closing command, etc. The heat source controller 21 is configured to turn on / off the combustion operation and the hot water supply switching valve based on the operation ON command of the heat source device 2 sent from the floor heating remote controller 5a, the valve opening command and the valve closing command of the hot water supply switching valve 22, etc. 22 is controlled to switch on and off, and ON / OFF of the circulation pump 23 is controlled. The operation control by the heat source controller 21 is the same in the second embodiment.

  In the case of the above normal operation control, as illustrated by the symbol N in FIG. 3, the floor heating control unit 56a uses the target control temperature α corresponding to the number of stages (set temperature Ts) input and set to the floor heating remote controller 5a. When the normal operation control is started, the floor heating temperature (exactly, the detected room temperature detected by the room temperature sensor 55) is gradually increased by the heat radiation from the hot water circulated and supplied to the floor heating panel 4, and the operation control is started. At the elapsed time t0, the temperature rises to the set temperature Ts. Thereafter, the set temperature Ts is maintained.

  On the other hand, if the eco selection switch 53 is turned on, the operation signal (selection command for selecting execution of eco driving control) is received and a switching signal is sent from the eco driving control unit 57a to the floor heating control unit 56a. Thus, the normal operation control by the floor heating control unit 56a is continued only during the initial period from the start of the control until the floor heating temperature rises to the set temperature Ts, and thereafter the eco operation control unit 57a performs the eco operation. It will be switched to operation control. That is, first, the normal operation control by the floor heating control unit 56a is executed as the initial operation control, and then the eco operation control is executed by switching to the eco operation control by the eco operation control unit 57a. Specifically, as illustrated by E in FIG. 3, the initial operation control by the floor heating control unit 56a is executed based on the target control temperature α, and thus the floor heating temperature has reached the set temperature Ts. Is detected by the room temperature sensor 55, if the set time S1 (for example, 30 minutes) elapses, the target control temperature α− that is lowered by a predetermined temperature (for example, 1 ° C.) at this time (elapsed time t1). 1 is changed to intermittent supply of hot water corresponding to the target control temperature α-1. For example, according to the above specific control example, the valve opening duration in the control cycle (20 minutes) of the hot water supply switching valve 22 is reduced from 17 minutes to 15 minutes, and the valve closing duration is increased from 3 minutes to 5 minutes. Switch as follows. By this switching, the floor heating temperature changes from Ts to Ts ′ which is lower by a predetermined temperature value. If the target control temperature α-1 is the final target value by the eco-operation control unit 57a, the hot water supply based on the target control temperature α-1 will be continued, and the floor heating temperature will also remain Ts'. Will do.

  On the other hand, if the final target value (lower limit target value) by the eco-operation control unit 57a is α-2 that is one step lower than the target control temperature α-1 (for example, 1 ° C. lower), the floor heating temperature Ts. 'Is continued for the set time S2 (elapsed time t2), the target control temperature is switched from α-1 to α-2, and is changed to intermittent supply of hot water corresponding to the target control temperature α-2. For example, according to the above specific control example, the valve opening duration in the control cycle (20 minutes) of the hot water supply switching valve 22 is reduced from 15 minutes to 13 minutes, and the valve closing duration is increased from 5 minutes to 7 minutes. Switch as follows. By this switching, the floor heating temperature changes from Ts ′ to Ts ″ that is lower by a predetermined temperature value.

  In the first embodiment described above, even when the eco operation control is selected by the eco selection switch 53, first, the room can be raised to the set temperature Ts intended by the user by the initial operation control. Since the room temperature state of the set temperature Ts is maintained for the set time S1, it is possible to experience the warmth (warm feeling) intended by the user and give satisfaction. On the other hand, after the set time S1 elapses, the target control temperature is lowered, so that energy saving can be reliably realized. As described above, energy conservation can be ensured while ensuring the warmth intended by the user. In addition, since the initial target control temperature α is gradually reduced from α-1 to α-1 and from α-1 to α-2 until the final target control temperature α-2, the user is not allowed to change the room temperature much. A great energy saving can be achieved while maintaining a warm feeling without being noticed.

Second Embodiment
The floor heating remote controller 5b of the second embodiment is the same as the first embodiment in that it also functions as a floor heating setting means, and has a different configuration in that the room temperature sensor 55 is not provided. That is, the floor heating remote controller 5b includes a floor heating control for performing normal operation control as shown in FIG. 4 in addition to the display unit 51 such as liquid crystal, the operation switch 52, the eco selection switch 53, and the stage number setting input unit 54. A unit 56b and an eco-drive control unit 57b that executes eco-drive control are provided. In the floor heating control unit 56b, a set heat radiation amount corresponding to each of the nine stages to be selected and set by the stage number setting input unit 54 is stored and set in advance, and is input by the user in the heating operation control. A set heat dissipation amount corresponding to the set number of stages is calculated, and operation control is executed based on the determined set heat dissipation amount. In the following, “α” in FIG. 3 is a symbol representing the target control heat dissipation amount unlike the target control temperature of the first embodiment, and “Ts” is simply a floor unlike the set temperature of the first embodiment. The description will be made assuming that the symbol represents the characteristic value of the heating temperature.

  When the user sets the desired number of steps with the step number setting input unit 54 and turns on the operation switch 52, the normal operation control by the floor heating control unit 56b is started unless the eco selection switch 53 is turned on. On the other hand, if the eco selection switch 53 is turned on, the normal operation control by the floor heating control unit 56b is executed as the initial operation control, and then the eco operation control by the eco operation control unit 57b is switched.

  When the eco-selection switch 53 is not turned ON, the set heat dissipation amount related to the user setting is set as the target control heat dissipation amount, and a control signal related to the set target control heat dissipation amount is sent to the heat source controller 21. To do. In the case of the normal operation control according to the second embodiment (see symbol N in FIG. 3), the floor heating is based on the target control heat radiation amount α corresponding to the number of stages (set heat radiation amount) input and set to the floor heating remote controller 5b. When the normal operation control by the controller 56b is started, the floor heating temperature (in the case of the second embodiment, the floor heating temperature in FIG. The temperature rises gradually, and rises to a temperature Ts corresponding to the set heat radiation amount at an elapsed time t0 from the start of operation control, and thereafter this temperature Ts is maintained.

  On the other hand, when the eco-selection switch 53 is ON-operated, an output of the operation signal is received, and a switching signal is output from the eco-operation control unit 57b to the floor heating control unit 56b, whereby the floor heating control unit The normal operation control by 56b is started based on the target control heat dissipation amount α corresponding to the set heat dissipation amount from the start of the control, and is continued only during the initial period until the temperature rises to the temperature Ts corresponding to the set heat dissipation amount. Thereafter, the operation is switched to the eco operation control by the eco operation control unit 57b. Specifically, as illustrated by the symbol E in FIG. 3, the initial operation control by the floor heating control unit 56b is started based on the target control heat dissipation amount α, whereby the floor heating temperature corresponds to the set heat dissipation amount. If the elapsed time S0 set in advance as the elapsed time from the start of the control that reaches the temperature Ts and lasts for the set time S1 (for example, 30 minutes) elapses, the target control is performed at this time (elapsed time t1). Switching to a target control heat release amount α-1 in which the heat release amount α is lowered by a predetermined amount, and switching to intermittent supply of hot water corresponding to the target control heat release amount α-1. Also in this case, as in the first embodiment, for example, the valve opening duration in the control cycle (20 minutes) of the hot water supply switching valve 22 is decreased by a predetermined time, and the valve closing duration is increased by a predetermined time. It only has to be switched. By this switching, the floor heating temperature changes from Ts to Ts ′ which is lower by a predetermined temperature value.

  On the other hand, if the final target value (lower limit target value) by the eco-drive control unit 57b is α-2, which is one step lower than the target control heat dissipation amount α-1, the target control heat dissipation amount is changed from α to α-1. When the set time S2 has elapsed from the time of switching (elapsed time t1) (elapsed time t2), the target control heat dissipation amount is switched from α-1 to α-2, and hot water corresponding to this target control heat dissipation amount α-2. Change to intermittent supply. Also in this case, for example, the valve opening duration in the control cycle (20 minutes) of the hot water supply switching valve 22 may be further decreased and the valve closing duration may be increased. By this switching, the floor heating temperature changes from Ts ′ to Ts ″ that is lower by a predetermined temperature value.

  In the second embodiment described above, the operational effects can be obtained as in the first embodiment. That is, even when the eco operation control is selected by the eco selection switch 53, the room can be raised to the temperature Ts intended by the user by the initial operation control, and the room temperature state of the temperature Ts is set. Since it is maintained for the time S1, it is possible to experience the warmth (warmth) intended by the user and to give satisfaction. On the other hand, after the set time S0 has elapsed, the target control heat dissipation amount can be reduced, so that energy saving can be reliably realized. As described above, energy conservation can be ensured while ensuring the warmth intended by the user. In addition, since the initial target control heat release amount α-2 is gradually reduced from α-1 to α-1 and from α-1 to α-2, the room temperature change is made to the user. It is the same as in the first embodiment that a great energy saving can be achieved while maintaining a warm feeling without noticing too much.

<Other embodiments>
The present invention is not limited to the above-described embodiments, but includes other various embodiments. That is, as the heat source device 2 shown as the hot water supply source in each of the above-described embodiments, a liquid (for example, petroleum) is burned in addition to a combustion burner that burns and heats gas (gas) fuel as a heating source. It is also possible to use a combustion burner that heats. Alternatively, an electric heater may be used as a heating source as a hot water supply source. Further, in addition to directly heating the hot water to be circulated by a heating source, the hot water may be configured to be indirectly heated by liquid-liquid heat exchange with a heating heat medium. Furthermore, as a heating medium for the heating, heat storage / hot water storage was performed using an external heat source such as solar heat, a gas engine (exhaust heat from engine coolant), a fuel cell (exhaust heat from coolant), or a heat pump (exhaust heat from refrigerant) A hot water supply source configured to use hot water may be used.

  The time values of the set times S1, S1, and S2 according to the detected room temperature detected and temporarily stored by the room temperature sensor 55 when the normal operation control by the floor heating control unit 56a of the first embodiment is started. May be changed and set. For example, the set time S1 (S1, S2) is shortened if the detected room temperature of the room temperature sensor 55 is high, and the set time S1 is changed and set longer if the detected room temperature is low. Also, the floor heating remote control 5a, 5b receives the detected temperature of the outside air temperature sensor provided on the heat source unit 2 side by communication from the heat source unit controller 21, and the set time S1 ( You may make it change and set the time value of S1, S2). For example, the set time S1 (S1, S2) is shortened if the detected outside air temperature is high, and the set time S1 (S1, S2) is changed and set longer if the detected outside air temperature is low. In the case of the floor heating remote controller 5b of the second embodiment, if the set time S1 is changed, the set time S0 is inevitably changed accordingly, and the switching timing is also changed. become. Furthermore, when the floor heating remote controllers 5a and 5b have a calendar function, the set time S1 (S1, S2) may be changed and set in conjunction with the calendar function. For example, the set time S1 (S1, S2) may be changed and set longer in winter, while the set time S1 (S1, S2) may be changed and set shorter than in winter. The calendar function is a function that can determine the current date based on a built-in timer and a preset calendar, and based on such a calendar function, the current time belongs to the winter period or other than the winter period. It is possible to determine whether it belongs.

  In the first embodiment, the target control temperature α-2, which is the lower limit target value, is lowered step by step from α to α-1, and α-1 to α-2. In the second embodiment, the lower limit target value is set. The target control heat dissipation amount α-2 is decreased stepwise from α to α-1 and from α-1 to α-2, but is not limited to this, and is continuously changed from α to α-2. That is, it may be gradually changed. In this case, in achieving greater energy saving, the effect that the user can maintain a warm feeling without noticing the change in the room temperature can be strengthened as compared with the case where the change is made in stages.

  In each of the above-described embodiments, the eco-selection switch 53 is turned on by the user for the first time so that the eco-operation control by the eco-operation control units 57a and 57b is switched from the middle. Regardless of whether or not a selective ON operation is performed by the switch 53, it may be switched to the eco operation control after the initial operation control is executed. In this case, the eco selection switch 53 can be omitted.

  In the above embodiment, control for floor heating is executed by communication between the floor heating remote controllers 5a and 5b and the heat source controller 21. However, the present invention is not limited to this. You may make it mount the part which concerns on the control structure by the heating remote control 5a or 5b. By doing in this way, the necessity to provide floor heating remote control 5a, 5b separately can be eliminated, and it can omit.

2 Heat source machine (hot water supply source)
3 Hot water circuit 4 Floor heating panel (floor heating terminal)
5a, 5b Floor heating remote control (floor heating setting means, floor heating control means)
21 Heat source machine controller (floor heating control means)
54 Stage number setting input section (floor heating setting means)
55 Room temperature sensor

Claims (7)

A heating operation for heating the space in which the floor heating terminal is installed is performed by circulating and supplying the hot water as the heat source to the floor heating terminal from the hot water supply source having the heating source to dissipate heat, In a hot water type floor heating apparatus comprising: a floor heating setting means for inputting and setting a floor heating degree; and a floor heating control means for performing heating operation control based on the floor heating degree input to the floor heating setting means.
The floor heating control means performs initial operation control with the floor heating degree set by the floor heating setting means as a target value, and after the heating operation of the set floor heating degree is satisfied, the floor heating control means is more than the set floor heating degree. A hot water type floor heating device, which is configured to be switched to and executed by eco-operation control with a floor heating degree lower by a predetermined amount as a target value. The hot water type floor heating device according to claim 1,
The floor heating control means is configured to execute the eco operation control when a set time elapses while the heating operation of the set floor heating degree is satisfied. It is a hot water type floor heating device according to claim 2,
An outside air temperature sensor for detecting the temperature of the external environment of the space;
The floor heating control means is a hot water type floor heating apparatus configured to change the set time based on whether the temperature detected by the outside air temperature sensor is high or low. It is a hot water type floor heating device according to claim 2,
A room temperature sensor for detecting the temperature of the internal environment of the space;
The floor heating control means is configured to store the detected temperature of the room temperature sensor at the time of execution of initial operation control, and to change the set time based on whether the stored detected temperature is high or low. There is a hot water floor heater. It is a hot-water type floor heating apparatus in any one of Claims 1-4,
The floor heating control means is a hot water type floor heating apparatus configured to continuously change the floor heating degree to the target value as eco-operation control. It is a hot-water type floor heating apparatus in any one of Claims 1-4,
The said floor heating control means is a hot water type floor heating apparatus comprised so that a floor heating degree may be changed low stepwise to the said target value as eco-operation control. It is a hot-water type floor heating apparatus in any one of Claims 1-6,
The floor heating control means is configured to receive an output of a selection command for selecting execution of the eco operation control, and to switch from initial operation control to eco operation control.

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