JPH11153328A - Testing method for floor heating apparatus and air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To contrive simplification of test of a floor heating apparatus. SOLUTION: A hot-water air conditioner 10 operates air conditioning so that a room temperature detected by a radiation sensor provided in a relay unit 20 becomes at a specified temperature. The relay unit 20 is connected to a heat source unit 26 for supplying hot water to a floor heating apparatus 140 provided along with the hot-water air conditioner 10 and sends a surface temperature of a mat 144 detected by the radiation sensor to the heat source unit 26. The heat source unit 26 judges whether the hot water is adequately circulated or not from the surface temperature of the mat 144 detected and sent by the transit unit 20 when the floor heating apparatus 140 has a testing operation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner that cools a room by a refrigeration cycle and heats the room by supplying hot water generated by a heat source unit to the indoor unit. The present invention relates to a test method of a floor warming device for heating a floor by supplying hot water generated by the unit to a hot water heating unit such as a floor mat, and an air conditioner.

[0002]

2. Description of the Related Art An air conditioner for indoor air conditioning includes:
In addition to a general air conditioner that performs cooling and heating operation using a refrigeration cycle using a refrigerant, there is a hot water air conditioner that performs cooling operation using a refrigeration cycle and performs heating operation using hot water (hereinafter referred to as “hot water air conditioner”). To tell).

[0003] The indoor unit of this hot water air conditioner is provided with a refrigerant heat exchanger in which refrigerant is circulated and a hot water heat exchanger in which hot water is circulated. When performing a cooling operation, a refrigeration cycle using the refrigerant is performed. The air passing through the refrigerant heat exchanger is cooled and blown out into the room to be air-conditioned.

In a hot water air conditioner, during heating operation, water is heated by a heat source unit (heat source unit) provided outside to generate hot water, and the hot water is supplied to a hot water heat exchanger provided in an indoor unit. By circulating air between the indoor units, the air blown into the room from the indoor unit is heated and heated.

[0005] Such a hot water air conditioner also has a so-called multi-type in which hot water is supplied from a heat source unit to a plurality of indoor units.

On the other hand, not only the hot water air conditioner but also an air conditioner is provided with a radiant heat sensor in an indoor unit, measures the temperature of the room with the radiant heat sensor, and controls the room to have a desired air condition.

[0007] There is a floor heating device for heating a room with hot water. In this floor heating device, hot water piping is provided in a floor heating mat laid on the floor of the room, and by circulating hot water to the hot water piping of the floor heating mat, the floor heating of the room is heated. Has become.

Some hot water air conditioners supply hot water generated by a heat source unit to a floor heating mat. That is, some hot water air conditioners are integrated with a floor heating device.

On the other hand, when such a floor heating device is installed in a room, the piping of the hot water between the heat source unit and the floor heating mat is properly connected, and the hot water piping is reliably connected between the heat source unit and the floor heating mat. It is necessary to carry out a test operation to check whether or not the gas is circulated.

[0010] The operation test of such a floor heating device involves operating a heat source unit, circulating hot water between the heat source unit and hot water piping in the floor heating mat, and checking whether the surface temperature of the floor heating mat rises appropriately. Check whether or not.

[0011]

However, the heat source unit is provided outside the room (outdoor), and when an operation test of the floor heating apparatus is performed, the floor heating system laid indoors is operated while the outdoor heat source unit is operated. It is necessary to measure the temperature of the mat surface. In addition, it is necessary to determine whether or not the hot water floor heating device is operating properly based on a change in the surface temperature of the floor heating mat, and to input the determination result to the heat source unit.

That is, when an operation test of the floor heating device is performed, it is necessary to prepare a temperature measuring device for measuring the temperature of the floor surface in the room, and it is necessary to reciprocate between the outdoor and the room. It is necessary to measure the temperature and determine from the measurement result whether or not it is operating properly, which is a complicated operation.

Further, there are multi-type hot water air conditioners in which a plurality of indoor units are connected to one heat source unit. In a multi-type hot water air conditioner, hot water is supplied from one heat source unit to a plurality of floor heating mats. can do. When testing a floor heating device provided in such a multi-type hot water air conditioner, the surface temperatures of a plurality of floor heating mats must be detected in parallel, and a plurality of temperature measuring devices are required. At the same time, the test operation becomes more complicated.

The present invention has been made in view of the above-mentioned circumstances, and has been made in consideration of an operation test of a floor heating device including a floor heating unit connected to a heat source unit of an air conditioner that heats a room using hot water. It is an object of the present invention to propose a test method of a floor heating device and an air conditioner for simplification.

[0015]

The invention according to claim 1 is
Passing the hot water generated by the heat source unit through the hot water pipe of the floor heating unit laid on the floor surface of the room to be air-conditioned, which is installed together with the indoor unit of the air conditioner that air-conditions based on the indoor temperature and the set temperature A floor heating device for heating a floor in a room to be air-conditioned, wherein a temperature detection unit for detecting the room temperature is communicably connected to the heat source unit by a communication unit, and the floor is used for an operation test. The temperature of the floor surface heated by the floor heating unit after the circulation of the hot water is started between the heating unit and the heat source unit is detected by the temperature detection unit, and is transmitted from the temperature detection unit by the communication unit. And determining a supply state of hot water from the heat source unit to the floor heating unit based on the temperature.

According to the present invention, the floor heating unit is provided by the temperature detecting means for detecting the indoor temperature when performing a test of the hot water floor heating device constituted by the heat source unit and the floor heating unit of the air conditioner. The operating condition of the floor heating device is determined based on the detection result.

The temperature detected by the temperature detecting means or the judgment result of the judging means is sent to the heat source unit by the communication means. As a result, it is possible to perform an operation test of the floor heating device without separately preparing a temperature measuring device and the like, and it is possible to automate an operation test of the hot water floor heating device. It will be easier.

Also, when a floor heating unit is provided for each of a plurality of indoor units, since the temperature detection means is provided for each of the indoor units, an operation test for the plurality of floor heating units is performed simultaneously. This eliminates the need to provide a temperature measuring device for each of the plurality of floor heating units.

According to a second aspect of the present invention, there is provided an air conditioner for air-conditioning an air-conditioned room provided with an indoor unit based on operating conditions including a set temperature and an indoor temperature, wherein the heat source unit generates hot water. A floor heating unit for heating the floor of the room to be air-conditioned by supplying hot water generated by the heat source unit to a hot water pipe laid on the floor of the room to be air-conditioned; Temperature detection means for detecting a nearby temperature as an indoor temperature; and determination of determining a supply state of hot water from the heat source unit to the floor heating unit based on the temperature detected by the temperature detection means during a test operation of the floor heating unit. Means for receiving a test start signal sent from the heat source unit, and transmitting a detection result of the temperature detection means or a judgment result of the judgment means to the heat source unit. Characterized in that it comprises a communicating means for output.

According to the present invention, the temperature detected by the temperature detecting means is transmitted to the heat source unit by the communication means. Thereby, at the time of an operation test of the floor heating device composed of the heat source unit and the floor heating unit, the temperature near the floor surface heated by the floor heating unit is detected by the temperature detecting means, and based on the detection result, the floor heating unit is detected. Depending on whether appropriate floor heating is possible or not,
It can be performed without using a measuring instrument separately. At the same time, it becomes possible to automate the operation test of the floor heating device.

According to a third aspect of the present invention, there is provided a relay unit in which the temperature detecting means and the communication means are integrally provided, and the communication means transmits a signal or transmits a signal between the indoor unit and the heat source unit. Transmission and reception are performed.

According to the present invention, the temperature detecting means is provided as a relay unit separately from the indoor unit, and the relay unit is connected to the indoor unit and the heat source unit by the communication means. Thereby, even if the indoor unit and the heat source unit are not directly connected, the operation test of the floor heating device can be performed using the temperature detecting means used for the indoor unit.

The invention according to a fourth aspect is characterized in that the temperature detecting means is a radiation sensor for detecting infrared rays emitted from a location to be measured in accordance with the temperature.

According to the present invention, the radiation sensor for measuring the temperature using infrared rays emitted from the floor or the like according to the surface temperature is used as the temperature detecting means. The temperature detection using infrared rays can accurately detect the surface temperature of the measured object at a position distant from the measured object, and can prevent erroneous determination during an operation test of the floor heating device.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a schematic configuration of a hot water air conditioner (hereinafter, referred to as "hot water air conditioner 10") applied to the present embodiment. The hot water air conditioner 10 includes an indoor unit 12 installed in a room to be air-conditioned and an outdoor unit 14 installed outdoors.
It is constituted by. A relay unit 20 for communication connected to the indoor unit 12 and the outdoor unit 14 is provided near the indoor unit 12.

The indoor unit 12 of the hot water air conditioner 10 has an indoor unit comprising an evaporator 16 which is a heat exchanger for a refrigerant circulated by a refrigeration cycle and a radiator 18 which is a heat exchanger for hot water in which hot water is circulated. 22 are formed.
In addition, the evaporator 16 and the radiator 18 provided in the indoor unit 12 may be integrally connected.
They may be provided separately.

The outdoor unit 14 includes a refrigerant unit 24 forming a refrigeration cycle for circulating a refrigerant with the evaporator 16 of the indoor unit 22, and generates hot water and transmits the generated hot water to the radiator 18 of the indoor unit 22. The heat source unit 26 circulates between the heat source units. In addition, the outdoor unit 14 may be an integral type in which the refrigerant unit 24 and the heat source unit 26 are integrally accommodated in the same casing, or are separate types in which each is accommodated in a separate casing. Is also good. Further, the heat source unit 26 may use hot water for hot water supply for heating.

As shown in FIGS. 1 and 3, the evaporator 16 of the indoor unit 22 is connected to the refrigerant unit 24 via refrigerant pipes 28A and 28B. As shown in FIG. 3, in the refrigerant unit 24, the refrigerant pipes 28A,
One of the refrigerant pipes 8B (refrigerant pipe 28A) is connected to a valve 32. The valve 32 is connected to a compressor 40 via a muffler 34A and an accumulator 38. The compressor 40 is connected to a heat exchanger (condenser) 42 via a muffler 34B. The heat exchanger 42 is connected to a valve 48 via a capillary tube 44 and a strainer 46, and the other refrigerant pipe 28B is connected to the valve 48. Thereby, in the hot water air conditioner 10, a refrigeration cycle is formed between the indoor unit 22 and the refrigerant unit 24.

In the hot water air conditioner 10, when the operation mode is selected as the cooling mode or the dehumidification mode (dry mode), the compressor 40 is operated to circulate the refrigerant. Note that a cooling fan 53 for cooling the heat exchanger 42 is provided near the heat exchanger 42 in the refrigerant unit 24. In FIG. 3, the flow of the refrigerant is indicated by arrows.

The evaporator 16 of the indoor unit 22 is provided with a heat exchanger temperature sensor (not shown). In the hot water air conditioner 10, the temperature of the evaporator 16 is lower than a predetermined temperature during cooling operation (for example, 6.4). (C or less) so as to perform the cooling operation while controlling the capacity of the compressor 40.

The radiator 18 of the indoor unit 22 is connected to the heat source unit 26 of the outdoor unit 14 via, for example, flexible hot water pipes (hereinafter, referred to as "hot water tubes") 30A and 30B. One hot water tube 30A is
The hot water inlet nipple 56A of the heat source unit 26 is connected to the hot water inlet nipple 56A, and the other hot water tube 30B is connected to the hot water outlet nipple 56B of the heat source unit 26.

The hot water tube 30B is connected to the indoor unit 22.
Is connected to the hot water inlet nipple 66A of the
Is connected to the radiator 18 via the The hot water tube 30A is connected to the hot water outlet nipple 6 of the indoor unit 22.
6B is connected to the radiator 18.

In the heat source unit 26, a hot water outlet nipple 56B is connected to the hot water inlet nipple 56A via the hot water heat exchanger 64, the pump 62 and the pressure tank 60, whereby the indoor unit 22 and the heat source unit 26 are connected. A closed circulation path of hot water is formed between them.

The heat source unit 26 is provided with a gas burner 70 for generating hot water. The gas burner 70 is provided with a gas burner 70 from outside the machine via gas solenoid valves 180A and 180B and a gas proportional valve 182. Gas is supplied. The gas burner 70 heats the water in the hot water heat exchanger 64 by burning this gas to generate hot water for heating. The pressure tank 60 is connected to a drain tank 72 via a pressure cap 58, and discharges water (for example, tap water) circulating in the hot water circulation path via the drain tank 72.

In the heat source unit 26, when the water temperature (the temperature of the hot water) rises and the internal pressure exceeds a predetermined value (for example, 0.9 kg / cmU), the pressure valve of the pressure cap 58 is actuated and the pressure cap 58 is actuated. The hot water is discharged from the pressure relief port provided to the drain tank 72 to prevent the pressure in the pipe from rising, and when the temperature of the hot water decreases and the internal pressure becomes less than a predetermined value, the negative pressure valve is activated to operate the drain tank 72. To collect water from The water overflowing from the drain tank 72 is discharged from a drain pipe connection port.

When operating in the cooling mode or the dry mode, the hot water air conditioner 10
(Operation of hot water, etc.) is stopped, and the variable flow valve 68 is closed (operation step 0). On the other hand, during the heating operation (heating mode), the gas burner 70 of the heat source unit 26 is ignited, the pump 62 is operated, and the variable flow valve 68 of the indoor unit 22 is opened. Thereby, the hot water is generated in the heat exchanger 64, and the generated hot water is circulated between the heat exchanger 64 and the radiator 18 of the indoor unit 22. The heat source unit 26 is provided with a high-temperature thermistor (not shown) between the hot-water heat exchanger 64 and the hot-water outlet nipple 56B, and a temperature detected by the high-temperature thermistor is about 80 ° C. (for example, about 80 ° C.). 82
° C) while circulating while controlling the temperature of the hot water. The opening degree of the variable flow valve 68 (operation step)
Is set according to the room temperature and the set temperature.

The indoor unit 22 is provided with a cross flow fan 90 for blowing air. Also, as shown in FIG. 2, the indoor unit 1 in which the indoor unit 22 is housed.
2 has a suction port 50 and an outlet 5
2 are provided. In the indoor unit 22, by operating the cross flow fan 90, the suction port 50
The air in the room is sucked in from the outlet 52 and is blown out from the outlet 52.
At this time, the temperature of the air sucked from the suction port 50 is controlled by passing through the evaporator 16 to the radiator 18 of the indoor unit 22, and the temperature-controlled air is blown out from the blowout port 52, so that the indoor air is blown out. Is air-conditioned. The outlet 52 is provided with upper and lower flaps 54 and left and right flaps (not shown), and the direction of temperature-controlled air blown from the outlet 52 is changed by the upper and lower flaps 54 and the left and right flaps.

As shown in FIG. 4, the indoor unit 22
Includes a microcomputer (hereinafter "microcomputer 100").
) Is provided. The control board 102 includes a power supply board 10
4. A power relay 110, a temperature fuse 112, a variable flow valve 6 together with a display board 106 and a switch board 108.
8. Fan motor 1 for driving cross flow fan 90
14. Louver motor 11 for controlling upper and lower flaps 54
6 are connected.

In the indoor unit 22, AC power for operation is supplied to the power supply board 104, and this AC power is converted into predetermined power by the power supply board, and
Supplied to The AC power supplied to the indoor unit 22 is supplied from the terminal plate 132 to the heat source unit 26 of the outdoor unit 14, and is supplied from the terminal plate 132 to the refrigerant unit 24 of the outdoor unit 14 via the power relay 110. You. That is, the power for operation is always supplied to the heat source unit 26 similarly to the indoor unit 22, and the refrigerant unit 24 is operated by the power supplied by turning on the power relay 110 by a signal from the control board 102. You.

The control board 102 includes a heat exchange temperature sensor 118 for detecting the temperature of the evaporator 16, a humidity sensor 120 for detecting the indoor humidity, a hot water heat exchanger sensor 122 for detecting the temperature of the radiator 18, Gas shortage sensor 12
4 etc. are connected. The display substrate 106 is provided with a display LED 128 and the like.

As shown in FIG. 2, the casing 36 of the indoor unit 12 is provided with a display section 82,
128 and the like are arranged on the display unit 82 (not shown in FIG. 2), whereby the operating state of the hot water air conditioner 10 (operating /
Stop and operation modes, etc.).

As shown in FIG. 4, a communication I / F board 134 is connected to the control board 102 of the indoor unit 22. To the communication I / F board 134, a control board (not shown) provided in the refrigerant unit 24 and a relay unit 20 described later are connected. The indoor I / F board 134 is provided in the indoor unit 22.
, An operation signal, a room temperature, and the like are input from a relay unit 20 described later.

The microcomputer 100 of the indoor unit 22 performs an air-conditioning operation based on operating conditions and an indoor temperature based on an operation signal input via the communication I / F board 134.
The microcomputer 100 controls the operation of the refrigerant unit 24 by performing serial communication with the refrigerant unit 24 via the communication I / F board 134. Note that the configuration of the refrigerant unit 24 and the control of the refrigerant unit 24 by serial communication can use a conventionally known configuration and method, and a detailed description thereof will be omitted in the present embodiment.

As shown in FIG. 5, the heat source unit 26
Has a control board 1 equipped with a microcomputer (not shown).
74 are provided. In the control board 174,
A power transformer 176, a pump (pump motor) 62 for circulating hot water, an igniter 178 for igniting the burner 70,
Gas solenoid valve 180 for supplying combustion gas to burner 70
A, 180B, a gas proportional valve 182, a fan motor 184 for air supply, and the like are connected. The control board 174 transforms the electric power supplied from the terminal plate 132 of the indoor unit 22 by the power transformer 176 to obtain electric power for driving the pump 62 and the like.

A high temperature thermistor 186 for measuring the temperature of the hot water sent from the hot water heat exchanger 64, an outside air temperature sensor 188 for detecting the outside air temperature, a rotation detector 190 for the fan motor 184, and the like are connected to the control board 174. Have been. The control board 174 generates hot water of a predetermined temperature while monitoring the operating state of each device in the heat source unit 26 with these sensors.

A temperature fuse 192, a high limit switch 194, and the like are connected to the control board 174, and a setting switch 200, a pump test terminal 196, and an operation monitoring terminal 198 for externally displaying an operation state and the like. A combustion lamp 202 that lights up when the gas burner 70 is ignited, a failure display LED 204 that displays an error code when a failure occurs, a maintenance switch 206, a secondary pressure adjustment volume 208, and the like are provided.

On the other hand, a floor heating mat 142 is connected to the heat source unit 26 as a floor heating unit, thereby constituting a floor heating device 140.

The heat source unit 26 is provided with a hot water inlet nipple 80A and a hot water outlet nipple 80B alongside the hot water inlet nipple 56A and the hot water outlet nipple 56B, respectively. A floor heating mat 142 is connected between the hot water inlet nipple 80A and the hot water outlet nipple 80B.

As shown in FIGS. 1 and 2, the floor heating mat 142 is, for example, a mat 1 to be laid on a floor in a room.
A warm water tube 146 (not shown in FIG. 2) is tightly woven in 44. Note that the floor heating unit connected to the hot water air conditioner 10 may be one in which a hot water pipe is provided inside or below the indoor floorboard.

As shown in FIG. 3, the floor heating mat 14
2, one end of the hot water tube 146 is connected to the hot water inlet nipple 84A, the hot water tube 86A is connected to the hot water outlet nipple 80B of the heat source unit 26 via the thermal valve 76, and the other end of the hot water tube 146 is The hot water tube 86B connected to the outlet nipple 84B is connected to the heat source unit 26 by being connected to the hot water inlet nipple 80A of the heat source unit 26. As a result, when the pump 62 operates, warm water is circulated in the floor heating mat 142 in response to opening and closing of the thermal valve 76, and the mat 144 is heated by the warm water.

As shown in FIG. 5, the thermal valve 78
Is connected to a control board 174 of the heat source unit 26, and the opening and closing of the board are controlled by the control board 174.

Incidentally, a communication I / F board 136 is provided on the control board 174 of the heat source unit 26, and is connected to the relay unit 20 via the communication I / F board 136.

On the other hand, as shown in FIG. 6, the relay unit 20 includes a control board 1 having a microcomputer 150.
The communication I / F board 154 for data communication and the communication I / F board 156 for serial communication are connected to 52.
Further, a temperature detection board 158 and a receiving board 160 are provided in the relay unit 20, and these are connected to the control board 152.

The receiving board 160 is connected to the system remote controller 13.
An operation signal transmitted from 0 is received. That is, as shown in FIG.
0, a reception window 162 is formed.
By operating the system remote controller 130 toward 62, an operation signal transmitted from the system remote controller 130 is received by the receiving board 160.

The system remote controller 130 is used to operate / stop the hot water air conditioner 10, set the set temperature, set or switch the operation mode, set the direction and amount of the conditioned air blown from the outlet 52 of the indoor unit 12, set the timer, In addition to the functions of a remote control switch used for a general air conditioner such as time setting during operation, a function of operating the floor heating mat 142 such as operation / stop of the floor heating device 140 and temperature setting, and a test of the floor heating device 140 It is a multi-function type that combines the operation setting function.

When the microcomputer 150 of the relay unit 20 receives the operation signal sent from the system remote controller 130, the microcomputer 150 derives an operation signal for air conditioning for the indoor unit 22 and the refrigerant unit 24 and the floor heating device 1 from the operation signal.
The operation signal for hot water heating for the heat source unit 40 and the heat source unit 26 is separated, and the operation signal for air conditioning is transmitted to the communication I / F board 156.
, And is transmitted to the indoor unit 22 by serial communication.

The microcomputer 150 of the relay unit 20
When the operation signal for hot water heating is separated from the received operation signal, the heat source unit 2 via the communication I / F board 154
Output to 6. At the same time, the microcomputer 150 inputs the heat source unit 26 or the operating state of the floor heating device 140 using the heat source unit 26 from the control board 174 of the heat source unit 26 to the communication I / F board 154. The microcomputer 100 communicates the operating state of the heat source unit 26 and the like input from the heat source unit 26 with a communication I /
It is sent to the indoor unit 22 via the F board 156.

The microcomputer 100 of the indoor unit 22 performs an air conditioning operation based on a signal input from the relay unit 20. That is, during the heating operation of the hot water air conditioner 10, the heating operation is performed in consideration of the operation state of the heat source unit 26 and the floor heating device 140 input via the relay unit 26.

A radiation sensor 164 for detecting a temperature from infrared rays is provided on the temperature detection board 158 of the relay unit 20.
Is provided. As shown in FIG. 2, the relay unit 20 is provided with a condenser lens 166, and an infrared ray emitted from an object to which the condenser lens 166 is directed according to the surface temperature is transmitted to the condenser lens 166. The radiation sensor 164 receives the light through the 166.

As the radiation sensor 164, an infrared sensor that detects infrared rays emitted from an object according to the surface temperature is used. The temperature detection board 158 sets the surface temperature of the object to be measured within an error range of 1 ° C. or less. Can be detected and output.

The microcomputer 150 of the relay unit 20 sends the temperature detected by the temperature detection board 158 to the indoor unit 22 together with an operation signal from the system remote controller 130 as the room temperature. The microcomputer 1 of the indoor unit 22
00 controls the air-conditioning capacity based on the operation signal from the system remote controller 130 input from the relay unit 20 and the room temperature.

The condenser lens 166 of the relay unit 20
It is directed to the vicinity of the floor at a predetermined position (for example, the center) of the area to be air-conditioned by the hot water air conditioner 10, and uses the temperature near the floor as the room temperature.

On the other hand, a floor heating mat 142 is laid on the floor, and the condenser lens 166 of the relay unit 20 is directed onto the floor heating mat 142. From here, the relay unit 20 uses the temperature detected by the radiation sensor 164 as the surface temperature of the floor heating mat 142 and sends it to the heat source unit 26 together with the heating operation signal sent from the system remote controller 130.

In the heat source unit 26, the relay unit 20
The operation control is performed based on the operation signal sent from. At this time, the thermal valve 7 based on the set temperature of the floor heating mat 142 set by the system remote controller 130 and the surface temperature of the floor heating mat 142 detected by the relay unit 20.
By controlling the opening / closing (on / off) of the floor heating mat 6, the surface temperature of the floor heating mat 142 is set to the set temperature.

The hot water air conditioner 1 thus configured
At 0, an operation test is performed when the floor heating device 140 is installed. That is, the floor heating mat 142 is supplied to the heat source unit 26.
Is connected, the hot water tube 1 in the floor heating mat 142 is connected.
It is determined whether or not the hot water is reliably circulated in 46 from the rise and the rise rate of the surface temperature of the floor heating mat 142. At this time, in the hot water air conditioner 10, the relay unit 2
The temperature detected by the zero radiation sensor 164 is used as the surface temperature of the floor heating mat 142.

Next, the operation of the present embodiment will be described. In the hot water air conditioner 10, when operating conditions such as an operation mode and a set temperature are set by operating the system remote controller 130, an operation signal corresponding to the setting is transmitted from the system remote controller 130. This operation signal is received by the relay unit 20.

The relay unit 20 includes the system remote controller 1
When the operation signal transmitted from the indoor unit 22 is received, the operation signal is separated into a signal related to the operation of the indoor unit 22 and the refrigerant unit 24 and a signal related to the operation of the heat source unit 26 and the floor heating mat 142. Signals relating to the operation of the refrigerant unit 24 are transmitted to the communication I / F board 156.
Through the indoor unit 22. At this time, the relay unit 20 includes the heat source unit 26 and the floor heating mat 1
Along with the signal indicating the operation state of 42, the room temperature is transmitted together.

The relay unit 20 includes a radiation sensor 164
The temperature is determined by the radiation sensor 164 from, for example, infrared rays emitted according to the temperature from the indoor floor or the like. In the relay unit 20, the room temperature (the error is 1
(Within ° C).

The microcomputer 100 of the indoor unit 22 starts operation based on an operation mode, a set temperature, an air volume, a wind direction, and the like based on an operation signal sent from the relay unit 20. At this time, the air conditioning capacity is appropriately controlled based on the room temperature detected by the relay unit 20.

On the other hand, during the heating operation, the operating conditions set by the system
0 is sent to the control board 174 of the heat source unit 26 via the communication I / F board 154. At this time, the operating state of the indoor unit 22 set by the system remote controller 130 is sent to the heat source unit 26 together with the indoor temperature detected by the relay unit 20.

When the heat source unit 26 is set to the heating operation, the heat source unit 26 ignites the gas burner 70 and operates the pump 62. As a result, the generation of hot water is started in the hot water heat exchanger 64, and the circulation of the generated hot water is started. Further, in the indoor unit 22, the opening degree step of the variable flow rate valve 68 is set based on the set temperature, the indoor temperature, and the like, and the variable flow rate valve 68 is opened at the set step.

Thus, in the indoor unit 22 of the hot water air conditioner 10, hot water of a predetermined pressure is circulated to the radiator 18 of the heat exchanger 20, and the air passing through the radiator 18 is heated by the hot water, and And blow out into the room.

On the other hand, when the floor heating by the floor heating mat 142 is set together with the heating operation of the hot water air conditioner 10 by operating the system remote controller 130, the relay unit 2
From 0, operating conditions such as the set temperature of the floor heating mat 142 are sent to the heat source unit 26. As a result, in the heat source unit 26, the thermal valve 76 is opened, and the floor heating mat 14 is opened.
The circulation of the hot water into the second hot water tube 146 is started.
Thereby, the mat 144 is warmed.

In the relay unit 20, the radiation sensor 164
The floor temperature, that is, when performing floor heating,
The temperature of the surface of the mat 144 is detected as the room temperature. Thereby, in the heat source unit 26, the opening and closing of the thermal valve 76 is controlled so that the room temperature detected by the relay unit 20 becomes the set temperature.

On the other hand, in the indoor unit 22, the heat source unit 26 sends the operating state of the floor heating mat 142 to the relay unit 20. The operating state of the heating mat 142 is transmitted together with an operation signal from the system remote controller 130 and the room temperature. Indoor unit 22
Microcomputer 100 performs air conditioning in consideration of the operation state of floor heating mat 142 based on information transmitted from relay unit 20. This enables efficient heating of the room.

When the floor heating device 140 is installed, the floor heating mat 142 is properly connected to the heat source unit 26, and a test is performed to determine whether the floor heating mat 142 can perform normal floor heating. In the hot-water air conditioner 10, the test of the floor heating device 140 is performed using the relay unit 20 for detecting the indoor temperature.

Hereinafter, the floor heating device 14 attached to the hot water air conditioner 10 will be described in accordance with the flowchart shown in FIG.
A test run of 0 will be described. In this flowchart, the processing is described as being performed by the control board 174 of the heat source unit 26.
It may be executed by 0.

In this flowchart, first, in the first step 300, it is confirmed whether or not the test operation has been set. The system remote controller 130 includes a floor heating device 140
When an operation test of the floor heating device 140 is set by operating a button on the system remote controller 130, an operation signal corresponding to the setting is transmitted to the relay unit 20.

When the relay unit 20 receives an operation signal for performing an operation test of the floor heating device 140, the relay unit 20 transmits the operation signal via the communication I / F board 154 to the heat source unit 26.
Then, an affirmative determination is made in step 300, whereby the operation test of the floor heating device 140 is started.

When the operation test of the floor heating device 140 is started, first, in step 302, a water filling operation is performed. This water filling operation opens the thermal valve 76 and the pump 62
To operate the hot water tube 14 in the floor heating mat 142.
The supply of water into 6 is started. Thereafter, step 304
Then, it is determined whether or not the water filling has been completed, and the water is filled in the heat source unit 26 and the hot water tube 146 of the floor heating mat 142, thereby completing the water filling (an affirmative determination in step 304).

When the water filling is completed, in step 306, a signal indicating the start of the operation test is sent to the relay unit 20. When the operation test of the floor heating device 140 is set, the relay unit 20 starts detecting the surface temperature of the vicinity of the floor using the radiation sensor 164, that is, the surface temperature of the mat 144 laid on the floor.

At the same time, in step 308, the gas burner 70 is ignited to start generating hot water. Thereby, the circulation of the hot water generated by the hot water heat exchanger 64 is started following the water filling.

If the water filling completion signal is not received within a predetermined time, the heat source unit 26 and the floor heating mat 142
Since it is assumed that water is not properly circulated due to poor connection of the pipeline or clogging during the operation, the operation test is stopped. The judgment of the driving test at this time is abnormal,
The heat source unit 26 is set to stop floor heating using the floor heating device 140. Heat source unit 2
Numeral 6 controls the temperature of the hot water circulated through the hot water tube 146 to a predetermined temperature (for example, 60 ° C.).

Heat source unit 26 for floor heating mat 142
When the circulation of the hot water from the mat 144 is started, in step 310, the surface temperature of the mat 144 detected by the radiation sensor 164 of the relay unit 20 is read, and in step 312, the change in the surface temperature of the read mat 144 is performed. The judgment of the driving test is made from

The temperature reading and determination performed in steps 310 and 312 are performed, for example, by comparing the temperature T ₀ detected when the water filling is completed with the temperature when a predetermined time t has elapsed from the completion of the water filling. T is higher than a predetermined temperature T _S (T ≧ T ₀₎
+ T _S ? ). A predetermined time (for example, a preset time of about 10 to 30 minutes)
The temperature T _{S which} is a criterion for perimeter is a floor heating mat 142 in which a hot water tube 146 is woven into the mat 144.
In the present embodiment, the temperature is set to about 5 ° C./t. As the floor heating device, there is a configuration in which a hot water pipe is laid below a floor plate. In this case, the temperature T _S can be set to about 2 ° C./t.

In the floor heating mat 142, the hot water tube 1
The mat 144 is heated by circulating warm water in the mat 46, and the surface temperature of the mat 144 rises. In the relay unit 20, the mat 14
Infrared emitted according to the surface temperature of the mat 4 is detected. As the surface temperature of the mat 144 increases, the temperature T detected by the relay unit 20 also increases. In the relay unit 20, the surface temperature of the mat 144 can be accurately detected by using the radiation sensor 164 for temperature detection.

Here, the rise in the temperature T of the surface of the mat 144 detected by the relay unit 20 takes a predetermined time t.
Within the temperature T _S (for example, T ≧ T ₀ +
T _S ) or the degree of increase that increases by the predetermined temperature T _S within the time t, the result of the driving test is determined to be normal (Yes in step 314), and the flow proceeds to step 316 to move to the floor. After setting the heating device 140 to the normal operation, the process proceeds to step 318, where a signal indicating the end of the operation test is transmitted, and the operation test is ended. On the other hand, when the temperature T on the surface of the mat 144 detected by the relay unit 20 does not rise below the temperature T _S or when the time t
If the degree of increase that increases by the temperature T _S is not obtained within the range, a negative determination is made in step 314, and the process proceeds to step 320. In this step 320, it is determined whether or not the elapsed time after completion of the water filling (from the start of circulation of the hot water) has reached a predetermined time t, or the number of times the temperature is read at regular time intervals is a predetermined number (elapsed time). (The number of times corresponding to the time t). Here, a predetermined time t
Is not reached (when the predetermined number is not reached), a negative determination is made in step 320, and the driving test is continued.

On the other hand, when the result of the determination in step 320 is affirmative, the mat 144 is not heated by the hot water or the floor heating is performed when the change in the temperature T is less than the temperature T _S even after the time t has elapsed. Since proper floor heating is not possible due to an abnormality in the operation of the device 140, the operation test is terminated after moving to step 322 and setting the operation abnormality. Thereby, even if the operation of the floor heating device 140 is instructed, the heat source unit 26
Is set so that floor heating by the floor heating device 140 is not performed.

As described above, by using the radiation sensor 164 provided in the relay unit 20 for detecting the indoor temperature, the floor heating device 14 attached to the hot water air conditioner 10 can be used.
An operation test of 0 can be automatically performed. In addition, in order to perform an operation test of the floor heating device 140, it is not necessary to prepare a measuring device for detecting the surface temperature of the mat 144, and it is not necessary to perform a temperature measuring operation using the measuring device. The work of laying the floor heating device 140 becomes extremely easy.

Note that the present embodiment described above does not limit the configuration of the present invention. For example, in the present embodiment, the position where the temperature is detected by the radiation sensor 164 provided in the relay unit 20 is fixed near the floor surface. The indoor temperature may be measured in a wide range by swinging the optical lens 166 or the like, and when the operation test of the floor heating device 140 is performed, the condenser lens 166 may be directed to the mat 144.

In this embodiment, the indoor unit 2
Although the relay unit 20 provided separately from the second unit is provided with the temperature detecting means, the indoor unit 22 is provided with the radiation sensor 164 serving as the temperature detecting means, and the indoor unit 22 and the heat source unit 26 are connected by the communication means. Is also good.
That is, the relay unit 20 may be incorporated in the indoor unit 22, or the indoor unit 22 may be provided with the function of the relay unit 20 so that the indoor unit 22 and the heat source unit 26 are connected by the communication means. Is also good.

Although the present embodiment has been described using the hot water air conditioner 10 for heating using hot water, the air conditioner provided with the floor heating device 140 for performing floor heating using hot water is a refrigeration system. Cooling and heating may be performed using a cycle. Also in this case, a relay unit 20 for detecting the temperature of the room to be air-conditioned is provided.
0 may be connected to the heat source unit 26 of the floor heating device 140.

Further, in the present embodiment, the so-called single type hot water air conditioner 10 in which one indoor unit 12 is connected to one outdoor unit 14 has been described. On the other hand, a multi-type hot water air conditioner to which a plurality of indoor units 12 are connected may be used. That is,
The present invention can also be applied to a case where the relay unit 20 and the floor heating mat 142 are provided for each of the plurality of indoor units 12 or for each room to be air-conditioned.

In this case, an operation test for a plurality of floor heating mats 142 can be performed simultaneously. When performing an operation test on a plurality of floor heating mats 142 at the same time, it is necessary to measure as many as the number of floor heating mats 142, and it is necessary to perform a temperature measurement operation using each measuring instrument. By applying, even in a floor heating device provided with a plurality of floor heating mats 142,
The driving test becomes extremely easy.

[0096]

As described above, according to the present invention, the temperature near the floor on which the floor heating unit is laid is measured by the temperature detecting means used for measuring the indoor temperature, and the measured temperature is communicated by the communication means. By sending the heat to the heat source unit, the operation test of the floor heating device can be automated. In addition, the preparation of a measuring device for performing an operation test of the floor heating device and the temperature measurement work using the prepared measurement device are unnecessary, and an excellent effect that the operation test operation of the floor heating device can be simplified can be obtained. .

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a hot water air conditioner applied to the present embodiment.

FIG. 2 is a schematic diagram showing an arrangement of an indoor unit, a relay unit, and a floor heating mat of the hot water air conditioner.

FIG. 3 is a schematic system diagram showing a flow path of a refrigerant and hot water of the hot water air conditioner applied to the present embodiment.

FIG. 4 is a schematic diagram showing a board configuration of an electric circuit of the indoor unit.

FIG. 5 is a schematic diagram showing a substrate configuration of an electric circuit of the heat source unit.

FIG. 6 is a schematic configuration diagram showing a relay unit applied to the present embodiment.

FIG. 7 is a flowchart showing an outline of an operation test of the floor heating unit.

[Explanation of symbols]

 10 Hot Water Air Conditioner (Air Conditioner) 12 Indoor Unit 14 Outdoor Unit 16 Evaporator 18 Radiator 20 Relay Unit 22 Indoor Unit 24 Refrigerant Unit 26 Heat Source Unit (Hot Water Floor Heating Device) 40 Compressor 140 Floor Heating Device 142 Floor Heating Mat (Floor) Heating unit) 146 Hot water tube 150 Microcomputer (temperature detection means, communication means) 154, 156 Communication I / F board (communication means) 164 Radiation sensor (temperature detection means) 174 Control board (judgment means)

Claims (4)

[Claims] An indoor unit of an air conditioner for air-conditioning based on an indoor temperature and a set temperature is provided by a heat source unit in a hot water pipe of a floor heating unit laid on a floor of a room to be air-conditioned. A test method for a floor heating device that heats a floor surface of a room to be air-conditioned by passing hot water, wherein a temperature detection unit that detects the room temperature is communicably connected to the heat source unit by a communication unit, and an operation test is performed. The temperature of the floor surface heated by the floor heating unit after starting circulation of the hot water between the floor heating unit and the heat source unit is detected by the temperature detection unit, and from the temperature detection unit A method for testing a floor heating device, wherein a state of supply of hot water from the heat source unit to the floor heating unit is determined based on a temperature transmitted by a communication unit. Law. 2. An air conditioner for air-conditioning an air-conditioned room provided with an indoor unit based on operating conditions including a set temperature and an indoor temperature, wherein the heat source unit generates hot water; A floor heating unit that heats the floor of the room to be air-conditioned by supplying hot water generated by the heat source unit to the hot water pipe laid on the floor, and a temperature near the floor in the room to be air-conditioned is set to the indoor temperature. Temperature detection means for detecting the temperature of the floor heating unit, a determination means for determining a supply state of hot water from the heat source unit to the floor heating unit based on the temperature detected by the temperature detection means during a test operation of the floor heating unit, and the heat source unit Communication means for receiving a test start signal transmitted from the control unit and transmitting a detection result of the temperature detection unit or a determination result of the determination unit to the heat source unit. An air conditioner characterized by including. 3. A relay unit in which the temperature detecting means and the communication means are integrally provided, wherein the communication means transmits a signal or transmits and receives a signal between the indoor unit and the heat source unit. 3. The method according to claim 2, wherein
The air conditioner according to item 1. 4. The air conditioner according to claim 2, wherein said temperature detecting means is a radiation sensor for detecting infrared rays emitted from a portion to be measured in accordance with the temperature.