JP6612677B2 - Hot water heater - Google Patents

Description

  The present invention relates to a hot water heater that performs hot water heating by circulating hot water to a plurality of series of hot water panels.

  As a conventional example, a heat source having a heat source, a hot water tank, a circulation pump, a forward header, and a return header in the frame body, and a control unit for controlling the heat source, the circulation pump, etc., and a heat source installed indoors for heat radiation. A heat radiator to perform, circulating the hot water to the plurality of heat radiators by the circulation pump, and having a plurality of remote controllers provided in a room in which the plurality of radiators are installed, the remote controller having an operation switch, heating It has an operation section such as a temperature setting switch for setting the output, and has a plurality of connecting pipes consisting of a pair of forward and return pipes connecting the heat source unit and the radiator, and the control section of the heat source and the remote control There is a hot water heating apparatus provided with a plurality of signal lines to be connected, and hot water is circulated through a large number of rooms with respect to one heat source to perform heating by hot water such as floor heating.

  When a heating operation request and a set temperature signal are transmitted from the remote control provided in each room, the heat source is activated to heat the circulating water for heating, and the circulation pump is operated from the hot water tank to each room. Hot water is supplied to the installed hot water panel (heat radiator), and heating is performed by heat radiation of the hot water panel. A thermal valve is provided between the circulation pump and the hot water panel, and the temperature of each room is adjusted by changing the amount of hot water supplied to the hot water panel by adjusting the opening and closing time of the thermal valve. (For example, see Patent Document 1)

Japanese Patent No. 5411777

  In this conventional hot water heating device, the radiator installed in each room is connected to the heat source device by a connecting pipe to form a hot water circuit, and the remote control installed in each room controls the heat source device by a signal line If the signal line is connected incorrectly, even if operations such as heating operation or temperature setting are performed with the remote control, the room where the remote control is installed is not heated and another room is There is a problem that it is heated or cannot set the correct temperature. Such miswiring occurred not only in the installation work of equipment, but also during repair work of malfunctions.

The present invention pays attention to this point and solves the above-described drawbacks. In particular, the structure includes a heat source, a hot water tank, a circulation pump, a forward header, and a return header in the frame, and controls the heat source and the circulation pump. between the heat source unit with a built-in control unit, and a plurality of radiator to perform heating by being installed indoors radiator, comprising a remote control corresponding to the radiator, respectively, which is installed in a room, and the radiator and the heat source unit Each radiator has a connecting pipe comprising a pair of forward pipes and return pipes, the forward header has a plurality of connection ports to which the forward pipes are connected in the longitudinal direction, and the return header has the return pipe a plurality of connection ports tube is connected to the connection port as many only a longitudinal direction of the forward header, a plurality of signal lines for connecting each of the said control unit remote, hot water several at the circulation pump In hot-water heating system which circulates the serial radiator, wherein the heat source unit includes a pipe connection portion which accommodates and said return header and the forward header, to the pipe connection section, said the longitudinal direction of the forward header A header fixing plate that fixes the return header so that the longitudinal direction of the return header is substantially parallel to the header; the header fixing plate fixes a part of the signal line connected to the remote controller; There are as many as the header connection ports, and a fixture attachment portion is provided on an extension of the line connecting the connection port of the pair of forward headers and the connection port of the return header, and a wire fixture is provided on the fixture attachment portion. It is fixed.

According to the present invention, the header fixing plate fixes a part of the signal line connected to the remote control and has the same number as the connection port of the forward header and the return header, and connects the connection port of the pair of forward headers and the return header. By providing the fixture mounting part on the extension line of the line connecting the mouth, it becomes easy to fix the signal line, and the fixing tool mounting part is provided on the extension line of the line connecting each connection port. Thus, the connecting pipe and the signal line corresponding to each connection port can be visually confirmed, and erroneous wiring in the connection work of the signal line can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. Explanatory drawing of the same outline. The exploded perspective view of the principal part. The rear view of the principal part. The top view of the principal part. The perspective view of the state which removed a part of the frame. The disassembled perspective view of the piping connection part. The enlarged explanatory view of the clip. The perspective view of the state which attached the same power wire from the right side.

Next, a hot water floor heating apparatus according to the present invention will be described with reference to an embodiment shown in the drawings.
Reference numeral 1 denotes a heat source unit for a hot water floor heating device. The inside of the frame 2 is divided into two upper and lower rooms by a horizontal partition plate 3, and a refrigeration circuit room 4 is provided at the lower part and a hot water circuit room 5 is provided at the upper part. The pipe 6 is connected to a floor heating hot water panel 7 (radiator) installed indoors.
The bottom surface of the refrigeration circuit chamber 4 is surrounded by the bottom plate 8, the front surface is surrounded by the front panel 9, the right side surface is surrounded by the right side plate 10, the left side surface is surrounded by the left side plate 11, and the top surface is surrounded by the horizontal partition plate 3.
Further, the front surface of the hot water circuit chamber 5 has a front panel top 12, a right side on the right side plate 13, a left side top 14 that covers an L shape from the left side to the back, and a top plate 15 on the top.

An air suction port 16 is provided on the back and left side of the refrigeration circuit chamber 3, and an air outlet 17 is provided on the front panel 9 on the front side. A compressor 18, an evaporator 19, an expansion valve 20, and a blower fan 21 are provided inside. A refrigeration circuit control unit 22 and the like are provided.
A water supply lid 23 is provided on the top plate 15 of the hot water circuit chamber 4 and a pipe cover 24 is provided on the right rear surface. A refrigerant connection valve 25, a water-refrigerant heat exchanger 26, a hot water tank 27, a circulation pump 28, A return hot water header 29, a return hot water header 30, a hot water circuit control unit 31 and the like are provided, and the return hot water header 30, the water-refrigerant heat exchanger 26, the hot water tank 27, the circulation pump 28, and the forward hot water header 29 are sequentially connected. Yes.
The right rear side of the hot water circuit chamber 5 is partitioned by a header base 32 and an upper header base 33, and a pipe connection portion 34 is provided. The piping cover 24 is attached via

Reference numeral 35 denotes a header fixing plate that is screwed to the header base 32, and fixes four pairs of connection ports 29a and 30a provided in the forward hot water header 29 and the return hot water header 30, respectively, in the holes 35a. The connection ports 29a and 30a of the outgoing hot water header 29 and the return hot water header 30 are fixed downward on the back side, and the radiator 7 is connected to the pair of upper and lower connection ports 29a and 30a to individually connect the hot water circuit 36. Form. A remote controller 37 is installed in the room where the radiator 7 is installed, and the temperature of the room is set according to the user's preference. The remote control 37 installed in the room where the radiator 7 is installed and the hot water circuit control unit 31 are connected by a signal line 38.
Providing the clip mounting portion 35b for attaching the clip 39 for locking the signal line 38 in the upper vicinity of the pair of upper and lower connection ports 29a and 30a reduces the possibility of erroneous wiring in maintenance work such as installation and repair. , Work efficiency is improved.

The forward hot water header 29 is provided with four connection ports 29a, and the hot water can be branched up to four circuits. A hot water control valve 40 such as a thermal valve is attached to each outlet after branching, and the hot water circuit control is performed. The temperature of the hot water panel 7 installed in each room is adjusted by adjusting the valve closing time of the thermal valve 40 by the unit 31.
The return hot water header 30 is provided with a return sensor 41 for detecting the temperature of the hot water returning from the hot water panel 7 of each room by a thermistor sensor or the like.
The hot water circuit 36 communicates the incoming hot water header 29, the hot water connection pipe 6, the hot water panel 7, and the return hot water header 30 to perform floor heating by circulating the hot water. Depending on the number of connection ports 29a and 30a of the hot water headers 29 and 30, a maximum of four parallel hot water circuits 36 can be set.

The thermal valve 40 is opened until the temperature of the return sensor 41 of the corresponding hot water circuit 36 reaches a set temperature, and the heating temperature is adjusted by adjusting the valve closing time after reaching the set temperature. Each room is heated according to the temperature setting of the remote controller 37 corresponding to the hot water circuit 36.
The compressor 18 adjusts the temperature of the incoming hot water by changing the rotational speed in multiple stages between about 15 to 105 Hz by an inverter drive circuit (not shown) provided in the hot water circuit control unit 31. The evaporator 19 is a fin tube type heat exchanger which is vertically long and has a large number of thin aluminum plates penetrated by a copper tube, and is provided in a row in close contact with the leeward side and the leeward side. The copper pipe is provided in 24 stages on the top and bottom, and the liquid refrigerant depressurized by the expansion valve 20 flows into the inside, deprives the heat in the air, becomes gas at the outlet of the evaporator 19, and returns to the compressor 18.

  42 is a refrigeration circuit radiator provided between the water-refrigerant heat exchanger 26 and the expansion valve 11, and comprises two copper tubes above and below the lower end on the leeward side of the evaporator 19, The water-refrigerant heat exchanger 26 and the expansion valve 20 are connected. The aluminum thin plate on the leeward side of the evaporator 19 is shared and formed integrally with the evaporator 19 so that the internal heat exchanger is Since the increase in discharge pressure can be suppressed without using it, the manufacturing cost can be kept low. Moreover, the unmelted residue in the defrosting operation can be prevented, and the efficiency of defrosting can be improved. Further, since the increase in discharge pressure is suppressed, an increase in power consumption of the compressor 18 can be suppressed, and a high COP can be realized.

The expansion valve 20 is an electronic expansion valve whose opening is controlled by the refrigeration circuit control unit 22 according to the rotational speed of the compressor 18 and the temperatures of the various parts of the refrigeration circuit.
The blower fan 21 is a resin propeller fan, and is rotated by a blower motor 43 having a variable number of rotations. The air suction port 7, the evaporator 10, the blower fan 12, and the blower outlet 8 form an outdoor blower path 44 to evaporate. The vessel 19 takes heat from the outside air.

  Reference numeral 45 denotes an air temperature sensor provided on the inner side of the air intake port 16, which detects the temperature of the intake air using a thermistor sensor or the like. A defrost sensor 46 attached to the evaporator 19 detects frost generated in the evaporator 19. Reference numeral 47 denotes a discharge temperature sensor attached to the surface of the discharge-side refrigerant pipe of the compressor 18 and detects the temperature of the discharge refrigerant for controlling the capacity of the compressor 18. A heat exchange sensor 48 is provided in the water-refrigerant heat exchanger 26 and adjusts the temperatures of the refrigeration circuit and the hot water circuit according to the temperature of the water-refrigerant heat exchanger 26. A forward sensor 49 detects the temperature of the forward pipe 50 on the downstream side of the water-refrigerant heat exchanger 26, and the maximum temperature of each hot water panel 6 is determined by this temperature. 51 is a return pipe to which hot water having a low temperature radiated on the upstream side of the water-refrigerant heat exchanger 26 returns.

  A plurality of remote controllers 37 are provided corresponding to the room where the radiator 7 is installed, and the temperature for selecting nine levels from the low temperature side to the high temperature side according to the usage of each room and the user's preference. A setting switch 52 and an operation switch 53 for operating / stopping heating of each room are provided.

  The signal line 38 is composed of a two-core or three-core electric wire, one terminal 38 a is connected to the remote control 37, and the other terminal 38 b is connected to the hot water control unit 31 of the heat source unit 1. Connect to the terminal connection 31b. Four terminal connection portions 31b are provided corresponding to the thermal valve 40, and each terminal connection portion 31b corresponds to the thermal valve 40 on a one-to-one basis, thereby responding to a command from a plurality of remote controllers 37 provided. Then, the hot water control unit 31 operates the thermal valve 40 corresponding to the remote controller 37 to adjust the amount of hot water passing through the connection port 29a of the outgoing hot water header 29 to heat the room where the remote controller 37 is installed. The temperature of the vessel 7 is adjusted.

  Therefore, when the other end 38b of the signal line 38 is connected to the wrong terminal connection portion 31b, the heating operation of the room in which the remote control 37 is installed can be performed even if the remote control 37 performs an operation such as heating operation or temperature setting. Another room is heated without being performed or the correct temperature cannot be set, and such miswiring occurs not only in the installation of the equipment but also in the repair work of the failure. In order to prevent this miswiring, the pair of forward pipes 50 and return pipes 51, connection ports 29a and 30a to which they are connected, thermal valves 40 and connection ports 29a and 30a corresponding to these connection ports 29a and 30a By confirming the relationship between the signal line 38 fixed to the clip 39 corresponding to and the terminal connecting portion 31b with the naked eye, erroneous wiring of the signal line 38 is surely prevented.

  The clip 39 is a nylon wire fixing tool, and is fixed by inserting a leg 39a into a small hole having a diameter of about 3 mm provided in the clip mounting portion 35b of the header fixing plate 35, and rotating the wire fixing portion 39b. Is inserted and locked and fixed.

  A power line 54 supplies electricity from the indoor or outdoor commercial power source (not shown) to the heat source unit 1 and is used by being connected to the terminal block 55 provided on the right side surface. Depending on the position of the commercial power source, the back side path via the power supply cord clamp 32a provided on the upper part of the header base 32 through the pipe connection part 34 and the two connection paths directly connected to the terminal block 55 from the right side can be selected. Thus, it is possible to facilitate the connection of the power supply line 54 for the installation work of the appliance and the maintenance for the repair of the failure, and the aesthetic appearance after the construction can be improved.

  Reference numeral 56 denotes a right cover that covers the terminal block mounting portion 57 of the right side plate 10 and prevents rain from entering the heat source unit 1. The right cover 56 is screwed to the right side plate 10 to connect the power line 54 to the terminal block 54. Remove and use with.

The procedure for installing the hot water heater will be described.
First, a plurality of radiators 7 such as a floor heating panel and a hot water radiation panel are installed in a room to be heated. A remote controller 37 is installed for each radiator 7 and each room. The number of radiators 7 to be used is at most the number of connection ports 29a and 30a of the hot water headers 29 and 30. In the present embodiment, the number is 4 and the number of remote controllers 37 to be used is 4 at most. The heating capacity of the machine 1 and the number of the connection ports 29a and 30a of the hot water headers 29 and 30 can be freely changed according to the usage form. Each radiator 7 is connected to a hot water communication pipe 6 composed of a pair of back and forth cross-linked polyethylene pipes and the like, and each remote controller 37 is connected to a terminal 38 a of a signal line 38.

  Next, the hot water communication pipe 6 connected to the radiator 7 and the signal line 38 connected to the remote controller 37 are extended to the heat source unit 1 installed outdoors, and the hot water communication pipe 6 and the signal line 38 are connected to the heat source unit. Connect to 1. First, the top plate 15 and the right side plate 13, the pipe cover 24, the fixing bracket 24a, and the right cover 56 of the frame 2 are removed.

  Next, the pair of hot water connecting pipes 6 for forward / return is connected with the connection port 29a of the forward hot water header 29 and the connection port 30a of the return hot water header 30 aligned vertically, and the number of the radiators 7 is repeated. Next, the middle of the signal line 38 connected to the remote controller 27 installed in the same room as the radiator 7 is fixed to the clip 39 provided immediately above the connection port 29a of the corresponding forward hot water header 29, Further, the terminal 38 b of the signal line 37 is connected to the terminal connection part 31 b provided on the printed circuit board 31 a of the hot water circuit control part 31. The heating operation of the target room is controlled by a signal from the remote controller 37 through the thermal valve 40 that opens and closes the connection port 29a of the outgoing hot water header 29 and the corresponding terminal connection portion 31b. The hot water communication pipe 6, the connection port 29a, the connection port 30a, and the clip 39 are aligned vertically, and this position and the terminal connection part 31b to which the terminal 38b of the signal line 37 is attached can be visually confirmed, so that the signal line 37 is incorrectly wired. To prevent.

  Next, a power line 54 that supplies power to the heat source unit 1 is connected. The power supply line 5 can be supplied from two directions according to the position of the commercial power supply to be used. When supplying power together with the hot water communication pipe 6 and the signal line 38 from the room, the gap between the horizontal partition plate 3 and the right side plate 10 is passed through the power cord clamp 32a above the header base 32 from the pipe connection portion 34. Pass through and connect to terminal block 54. Further, when a commercial power source is provided in the vicinity of the heat source unit 1, it can be directly connected to the terminal block 54 through the hole 56 a provided in the right cover 56, and the power line is connected according to the position of the heat source unit 1 and the commercial power source. Since the arrangement of 54 can be selected, the installation work is facilitated, the fit of the power supply line 54 is good, and the aesthetic appearance can be improved.

  Next, the top plate 15 and the right side plate 13 of the frame body 2, the pipe cover 24, the fixing bracket 24 a, and the right cover 56 are attached in the reverse order and are operated from the remote control 37 installed in each room. By performing the operation and performing a trial run with each remote controller 37 to determine whether the room where the remote controller 37 is installed is normally heated, the installation work is completed.

  As described above, the clip fixing portion 35b for fixing a part of the signal line 38 connected to the remote controller 37 corresponding to each radiator 7 is provided on the header fixing plate 35 corresponding to each connection port 29a, 30a. Thus, the work of fixing the signal line 38 is facilitated, and the connection pipe 6 and the signal line corresponding to each of the connection ports 29a and 30a are provided by providing the clip mounting portions 35b on the extended lines of the connection ports 29a and 30a. 38 can be visually confirmed, and erroneous wiring in the connection work of the signal line 38 can be reduced.

DESCRIPTION OF SYMBOLS 1 Heat source machine 6 Connection pipe 7 Radiator 27 Warm water tank 28 Circulation pump 29 Outflow header 29a Connection port 30 Return header 30a Connection port 31 Hot water circuit control part 34 Pipe connection part 35 Header fixing plate 37 Remote control 38 Signal line 39 Clip 40 Hot water control Valve (thermal valve)

Claims (3)

The frame is equipped with a heat source, hot water tank, circulation pump, forward header and return header,
A heat source unit having a built-in control unit for controlling the heat source and the circulation pump;
A plurality of radiators installed indoors and heated by heat radiation ;
A remote control corresponding to each of the radiators installed in the room,
Each radiator has a connecting pipe composed of a pair of forward and return pipes connecting between the heat source unit and the radiator.
The forward header is provided with a plurality of connection ports to which the forward pipe is connected in the longitudinal direction,
The return header includes a plurality of connection ports to which the return pipe is connected in the longitudinal direction as many as the connection ports of the forward header,
A plurality of signal lines for connecting the control unit and the remote controller are provided ,
In the hot water heating apparatus for circulating hot water to the plurality of radiators by the circulation pump ,
The heat source machine includes a pipe connection portion that houses the forward header and the return header,
The pipe connection portion has a header fixing plate that fixes the longitudinal direction of the forward header and the longitudinal direction of the return header to be substantially parallel,
The header fixing plate fixes a part of the signal line connected to the remote controller and has the same number as the connection port of the forward header and the return header, and the connection port of the pair of forward headers and the return header A fixture mounting part is provided on the extension of the line connecting the connection port,
A hot water heating apparatus, wherein an electric wire fixture is fixed to the fixture attachment portion.   The hot water heater according to claim 1, wherein the forward header is provided with a hot water control valve that controls the flow of hot water by opening and closing the valve.   The hot water heater according to claim 1, wherein the electric wire fixture is configured by a clip that sandwiches the signal line.

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