JP2004053184A - Hot-water storage type hot-water supply device and its operation method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the electricity rate on the basis of a contract on a lamp by each season and each time zone. <P>SOLUTION: This hot-water storage-type hot-water supply device comprises a tank unit comprising a hot-water tank for storing the hot-water or water, a heat pump unit 11 heating the hot-water or water in the hot-water storage tank, and a control device 15B controlling the operation of the heat pump unit and the like. The control device is configurated to operate the heat pump unit in reference to the data based on the contract on lamp by each season and each time zone recorded in ROM 115 in advance by using the time data of long wave standard time radio wave detected by a long wave standard time radio wave detecting circuit 82. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a hot water supply type hot water supply apparatus and an operation method thereof, and more particularly, to a hot water supply type hot water supply apparatus using electric power in a night time zone based on a seasonal time zone-specific lighting contract and an operation method thereof.
[0002]
[Prior art]
A hot water storage type hot water supply device includes a tank unit having a hot water storage tank capable of storing hot water or water, a heat source unit capable of heating hot water or water in the hot water storage tank, and a control device that controls operation of the heat source unit and the like. And is configured. As this type of hot water storage type hot water supply device, there is one in which the control device operates a heat source unit in a night time zone based on a seasonal time zone-specific lighting contract to store hot water in a hot water storage tank.
[0003]
[Problems to be solved by the invention]
However, in the above-described hot water supply type hot water supply apparatus, since the internal timer provided in the control device and having an oscillator measures time, the accumulated error of the time measured by the internal timer increases due to long-term use. Sometimes.
[0004]
In the event of a power failure, the backup power supply measures the time of the internal timer. However, the time error of the internal timer using the backup power supply increases the time error, and in this case, the accumulation of the time error may increase. There is.
[0005]
When the accumulation of the time error in the internal timer increases as described above, the heat source unit may be operated outside the night time zone based on the seasonal time zone-specific lighting contract, and the power usage fee rises. There is.
[0006]
Furthermore, the initial time of the internal timer is set after the hot water supply apparatus is installed. However, this time setting work is troublesome, and even if the time is set incorrectly, the heat source unit may be operated outside the night time zone based on the seasonal time zone-specific lighting contract. There may be cases where prices rise.
[0007]
An object of the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a hot water storage type hot water supply apparatus and a method for operating the hot water storage apparatus, which can reduce a power usage fee based on a seasonal time zone-specific lighting contract.
[0008]
[Means for Solving the Problems]
The invention according to claim 1 controls a tank unit having a hot water storage tank capable of storing hot water or water, a heat source unit capable of heating hot water or water in the hot water storage tank, and controls operations of the heat source unit and the like. The control device operates the heat source unit based on pre-stored data based on a seasonal time zone-based light contract using time data of a long-wave standard time radio wave. It is characterized by having such a configuration.
[0009]
According to a second aspect of the present invention, in the first aspect of the invention, the control device compares the season and the date and time taken from the time data of the long-wave standard time radio wave with the data based on the seasonal time zone-based light contract. In addition, the operation of the heat source unit using nighttime power is changed every season, and the amount of hot water stored in the hot water storage tank is controlled to increase or decrease every season.
[0010]
According to a third aspect of the present invention, in the first or second aspect, the control device includes a detection circuit capable of detecting a long-wave standard time radio wave.
[0011]
According to a fourth aspect of the present invention, in the first or second aspect, a detection circuit capable of detecting a long-wave standard time radio wave is provided in a remote controller connected to the control device, and the detected radio wave is detected. Is transmitted to the control device.
[0012]
The invention according to claim 5 is the invention according to any one of claims 1 to 4, wherein the control device is provided in a tank unit.
[0013]
The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein the heat source unit includes a compressor, a heat pump heat exchanger, and a refrigerant-to-water heat exchanger, and water or water is generated by refrigerant heat. It is a heat pump unit capable of heating hot water.
[0014]
According to a seventh aspect of the present invention, there is provided an operation method of a hot water supply type hot water supply apparatus including a tank unit having a hot water storage tank capable of storing hot water or water, and a heat source unit capable of heating the hot water or water in the hot water storage tank. , Wherein the heat source unit is operated using time data of a long-wave standard time radio wave and based on data based on a seasonal time zone-specific lighting contract stored in advance.
[0015]
The invention according to claim 8 is the invention according to claim 7, wherein a season and a date and time are taken from the time data of the long-wave standard time radio wave, and the season and the date and time are combined with data based on a seasonal time zone-specific lighting contract. In comparison, the operation of the heat source unit using nighttime power is changed every season, and the amount of hot water stored in the hot water storage tank is controlled to increase or decrease every season.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 is a circuit diagram showing a heat pump type hot water supply apparatus to which an embodiment of a hot water storage type hot water supply apparatus according to the present invention is applied, in which water in a hot water storage tank is heated and hot water is stored in the tank. is there.
[0018]
As shown in FIG. 1, the heat pump hot water supply apparatus 10 includes a heat pump unit 11 as a heat source unit, a hot water storage unit 12, a faucet 13, a bathtub 14, and control devices 15A and 15B.
[0019]
The heat pump unit 11 is configured such that a compressor 16, a heat exchanger for storing hot water (refrigerant-to-water heat exchanger) 27, a heat pump heat exchanger 18, and an accumulator 17 are sequentially arranged in a refrigerant pipe 19. The compressor 16 compresses the refrigerant. Further, the hot water storage heat exchanger 27 heats hot water or water by the heat of the refrigerant discharged from the compressor 16. In this embodiment, the refrigerant is a natural refrigerant such as a refrigerant containing a large amount of carbon dioxide. In the case of a refrigerant containing a large amount of carbon dioxide, the refrigerant pressure is generally higher than that of a CFC-based refrigerant.
[0020]
The hot water storage unit 12 includes a hot water storage tank 26, a heat exchanger for a bathtub (water-to-water heat exchanger) 28, a faucet hot water supply line 71, a bathtub pouring line 72, and the like.
[0021]
The hot water storage tank 26 stores hot water heated by refrigerant heat using the hot water storage heat exchanger 27. The hot water storage tank 26 and the hot water storage heat exchanger 27 are connected in a loop by a hot water storage water pipe 36 having a hot water storage circulating pump 34, a flow control valve 35, and a first switching electromagnetic valve 73. When the valve 73 is opened, a hot water supply water circulation circuit N in which water circulates is configured as shown by the thick line in FIG.
[0022]
When a refrigerant containing a large amount of carbon dioxide is used as the refrigerant, as described above, the refrigerant pressure is higher than that of the CFC-based refrigerant, and the temperature of the hot water stored in the hot-water storage heat exchanger 27 reaches about 90 ° C. To rise.
[0023]
Since the heat pump unit 11 and the hot water storage unit 12 are connected in a loop by the hot water storage water pipe 36, the high-pressure refrigerant pipe (for example, the refrigerant pipe 19) is not exposed to the outside, and the safety of the heat pump hot water supply apparatus is secured. You.
[0024]
A first tap water pipe 38 provided with a pressure-reducing check valve 37 is connected to the bottom 26B of the hot water storage tank 26 so that tap water can always be supplied into the hot water storage tank 26. Therefore, tap water pressure always acts in the hot water storage tank 26. A top part tapping pipe 40 provided with a pressure relief valve 39 is connected to the top part 26A of the hot water storage tank 26, and an intermediate part tapping is provided at a substantially middle part 26C between the top part 26A and the bottom part 26B of the hot water storage tank 26. A pipe 33 is connected, and a mixing valve 100 such as a wax valve is disposed at a junction of the tapping pipes 33 and 40.
[0025]
When the hot water or water at the bottom 26B of the hot water storage tank 26 is supplied to the hot water storage heat exchanger 27 by the operation of the hot water storage circulation pump 34, the hot water storage heat exchanger 27 removes the supplied hot water or water. The heat is heated by the heat of the refrigerant gas discharged from the compressor 16 of the heat pump unit 11. The flow of the heated hot water or water is adjusted by the flow rate adjusting valve 35 when the first switching electromagnetic valve 73 is opened, guided to the top 26A of the hot water storage tank 26, and stored in the hot water storage tank 26 at an upper limit of about 90 ° C. Hot water can be stored.
[0026]
The pressure relief valve 39 releases the pressure when the hot water or the water is excessively heated and the pressure in the hot water storage tank 26 becomes excessive.
[0027]
The bathtub heat exchanger 28 is a water-to-water heat exchanger that circulates hot water in the hot water storage tank 26 to reheat the hot water in the bathtub 14. Hot water in the hot water storage tank 26 is drawn out by driving a pump 102 in a circulation pipe 101 led out from a ceiling 26A. The pumped hot water is led to the bathtub heat exchanger 28 via the circulation pipe 101 and heats (reheats) the hot water or water in the bathtub 14, and then connects the second switching electromagnetic valve 74 and the return pipe 103. After that, the hot water storage tank 26 is returned to the intermediate portion 26C between the top portion 26A and the bottom portion 26B.
[0028]
In other words, the bathtub heat exchanger 28 contacts the introduced water pipe 75 for guiding the hot water in the hot water storage tank 26 with the first bathtub water pipe 51 for guiding the hot water or the water in the bathtub 14, so that these introduced water pipes 75. And the hot water or water flowing in the first bathtub water pipe 51 can be heat-exchanged. The introduction water pipe 75 and the first bathtub water pipe 51 are formed in a flat tube shape in a portion constituting the bathtub heat exchanger 28, so that the contact area is increased.
[0029]
The first bathtub water pipe 51 that connects the bathtub heat exchanger 28 and the bathtub 14 includes a bathtub circulation pump 46, a filter 47, a water level sensor 48, a thermistor 49, and a flow switch 50. The first bathtub water pipe 51 constitutes a bathtub water circulation circuit P in which hot water or water circulates between the bathtub heat exchanger 28 and the bathtub 14.
[0030]
Since the water level sensor 48 communicates with the bathtub 14 via the first bathtub water pipe 51, the water level sensor 48 detects the level of hot water or water in the bathtub 14. When hot water or water is circulating in the bathtub water circulation circuit P, the thermistor 49 detects the hot water temperature and indirectly detects the hot water temperature in the bathtub 14. Further, the flow switch 50 detects that hot water or water is circulating in the bathtub water circulation circuit P. Further, the filter 47 filters the hot water together with the filter 56 disposed in the bathtub 14.
[0031]
Hot water is poured into the bathtub 14 as described later, and hot water is filled in the bathtub 14. When the hot water in the bathtub 14 is reheated, the circulation pump 102 and the bathtub circulation pump 46 are operated. Then, as shown by the bold line in FIG. 4, the hot water in the hot water storage tank 26 and the hot water in the bathtub 14 both flow into the bathtub heat exchanger 28, where they exchange heat, and the hot water in the bathtub 14 is Then, the hot water in the hot water storage tank 26 is used for reheating. Hot water that has worked in the bathtub heat exchanger 28 has its temperature reduced to about 50 ° C. by the heat exchange, and flows into the intermediate portion 26C of the hot water storage tank 26 via the water pipe 103.
[0032]
The faucet hot water supply line 71 includes a hot water supply pipe 59, a mixing control valve 57, and a flow sensor 58, as shown by a thick line Q in FIG.
[0033]
Since tap water pressure acts on the hot water storage tank 26 via the first tap water pipe 38, the hot water in the hot water storage tank 26 can be supplied to the faucet 13 by opening the faucet 13. The flow sensor 58 detects the amount of hot water flowing in the hot water supply pipe 59. Further, the mixing control valve 57 is connected to the first tap water pipe 38 downstream of the pressure reducing check valve 37 via the second tap water pipe 62 as shown by the thick line R in FIG.
[0034]
Accordingly, by controlling the opening degree of the mixing control valve 57, the hot water from the hot water supply pipe 59 and the tap water from the second tap water pipe 62 are mixed, and the hot water supplied from the faucet 13 is about 60 ° C. or less, for example, 42 ° C. Adjusted to ° C.
[0035]
The bathtub pouring line 72 connects the downstream side of the flow sensor 58 in the hot water supply pipe 59 and the space between the bathtub circulation pump 46 and the flow switch 50 in the first bathtub water pipe 51 as shown by a thick line S in FIG. The hot water in the hot water storage tank 26 can be poured into the bathtub 14 by being connected by a bathtub water pipe 68. In the second bathtub water pipe 68, a flow sensor 64, a pouring solenoid valve 65, a relief means 66, a check valve 67, and a solenoid valve 54 are sequentially arranged from the hot water supply pipe 59 side.
[0036]
Here, the flow sensor 64 detects the amount of hot water flowing in the second bathtub water pipe 68. The relief means 66 and the check valve 67 release the pressure when the excessively heated hot water flows through the second bathtub water pipe 68. The solenoid valve 54 is opened when pouring water into the bath and closed when reheating.
[0037]
When the pouring solenoid valves 65 and 54 are opened while the bathtub circulation pump 46 is stopped, the hot water in the hot water storage tank 26 is partially filled with the hot water supply pipe 59 and as shown by the thick line S in FIG. The water flows through the second bathtub water pipe 68 to reach the first bathtub water pipe 51, and is poured into the bathtub 14 through the flow switch 50, the thermistor 49, the water level sensor 48, and the filter 47 in the first bathtub water pipe 51. .
[0038]
When the water level sensor 48 detects that an appropriate amount of hot water has been poured from the hot water storage tank 26 into the bathtub 14, the pouring solenoid valves 65 and 54 are closed. Thereafter, when the thermistor 49 detects that the temperature of the hot water in the bathtub 14 has fallen below the appropriate temperature, the hot water or water in the bathtub 14 is heated (reheated) as described above, and the hot water in the bathtub 14 is heated. Is kept warm.
[0039]
In this manner, an operation of pouring an appropriate amount of hot water at an appropriate temperature from the hot water storage tank 26 to the bath tub 14 and then heating (reheating) the hot water in the bath tub 14 to an appropriate temperature for a predetermined time to perform a heat retaining operation is referred to as a bath tub automatic operation. .
[0040]
In the present embodiment, since the refrigerant circuit using the natural refrigerant is provided, the temperature of the hot water stored in the hot water storage tank 26 increases to about 90 ° C. as compared with the refrigerant circuit using the chlorofluorocarbon-based refrigerant. According to this, by circulating the hot water in the hot water storage tank 26, the hot water in the bathtub 14 can be additionally heated at this hot water temperature.
[0041]
The control device 15A is installed in the heat pump unit 11, and controls the operation (including the capacity control) and the stop of the compressor 16. The control device 15B is installed in the hot water storage unit 12 to operate or stop the hot water circulation pump 34 and the bathtub circulation pump 46, the first switching solenoid valve 73, the second switching solenoid valve 74, and the pouring solenoid valve. It controls the opening and closing of 65 and 54, the opening of the flow control valve 35 and the mixing control valve 57, and the like.
[0042]
The control device 15B is connected to the control device 15A of the heat pump unit 11 by a communication line 78 so that bidirectional communication can be performed. Accordingly, the operation of the heat pump unit 11, for example, the operation of the compressor 16 of the heat pump unit 11 is controlled by the control device 15B of the tank unit 12 via the control device 15A of the heat pump unit 11.
[0043]
Further, a kitchen remote controller (kitchen remote controller) 79 and a bath remote controller (bath remote controller) 80 are connected to the control device 15B in a wired or wireless state. By the kitchen remote controller 79 or the bath remote controller 80, the above-described devices (for example, the compressor 16, the hot water storage circulating pump 34, and the like) in the heat pump unit 11 or the tank unit 12 are controlled via the control device 15A or 15B. .
[0044]
As shown in FIG. 5, the control device 15B includes a microcomputer 81, a long-wave standard time radio wave detection circuit 82, a sensor input circuit 83, a driver circuit 84, and a communication circuit 90. The microcomputer 81 includes a CPU 113, an internal timer 114, a ROM 115, and a RAM 116.
[0045]
The microcomputer 81 of the control device 15B is configured to be able to communicate with the kitchen remote controller 79 and the bath remote controller 80 using the communication circuit 90 as described above. Further, the sensor input circuit 83 outputs temperature data from a plurality of temperature sensors installed in the vertical direction of the hot water storage tank 26 to the microcomputer 81, for example. Further, the driver circuit 84 drives the hot water supply circulating pump 34, the flow control valve 35, and the like according to a command signal from the microcomputer 81.
[0046]
The long wave standard time radio wave detection circuit 82 detects and receives a long wave standard time radio wave, for example, every 24 hours, and transmits time data (time code) in the radio wave to the internal timer 114 of the microcomputer 81. The internal timer 114 measures the time of 24 hours. When receiving the time data from the long-wave standard-time radio wave detection circuit 82, the internal timer 114 determines the date, the day of the week, the time, and the like from the time data to determine its own date, Correct the day of the week, time, etc. When the longwave standard time radio wave detection circuit 82 detects a longwave standard time radio wave every 60 seconds, the internal timer 114 receives time data in the radio wave and corrects its own time and the like. The time measurement of the above 60 seconds is executed.
[0047]
Here, the initial time setting of the internal timer 114 is based on time data in the long wave standard time radio wave detected by the long wave standard time radio wave detection circuit 82 when the power is turned on after the installation work of the heat pump hot water supply device 10 is completed. The internal timer 114 is configured to automatically set its own date, day of the week, and time.
[0048]
Further, in the ROM 115, data of a seasonal time zone light contract contracted with a power company is recorded in advance. As shown in FIG. 7, the seasonal time zone-specific light contract is based on the start time and end time of each of the daytime, morning and evening time, and nighttime, and The electricity usage fee is displayed. Of these, in the daytime, the electricity usage fee is set differently in summer and other seasons. The power usage fee is set to A in the daytime time zone in summer, B in the daytime time zone in other seasons, C in the morning and night time zone, and D in the nighttime time zone in this order. The start date and end date of each of the summer and other seasons are also displayed in the seasonal time zone light contract.
[0049]
The CPU 113 of the microcomputer 81 shown in FIG. 5 uses the date (season), the day of the week, and the time of the internal timer 114 corrected by the time data of the long-wave standard time radio wave, and stores the seasonal time zone light stored in the ROM 115. The operation of the heat pump unit 11 is controlled based on the data based on the contract. That is, the CPU 113 compares the date (season), the day of the week, and the time obtained by correcting the time data of the long-wave standard time radio wave by the internal timer 114 with the data of the seasonal time zone-specific light contract in the ROM 115, and The operation pattern of the heat pump unit 11 that uses the hot water is changed every season, and the amount of hot water stored in the hot water storage tank 26 is controlled to increase or decrease every season.
[0050]
Further, an operation pattern of the heat pump unit 11 by the CPU 113 of the microcomputer 81 in the control device 15B will be described in detail. In the summer, when households use an average of 200 liters of hot water a day, in the summertime when electricity usage rates during the daytime are high, use electricity during the nighttime to allow for a margin of 100 liters, and prepare 300 liters of hot water (for example, 85 ° C.). ) Is heated at night to store hot water in the hot water storage tank 26 to keep it warm and use this hot water during the daytime. Since there is a margin of 100 liters, the operation of the heat pump unit 11 during the daytime to suppress boiling of hot water is suppressed.
[0051]
Similarly, in a home that uses an average of 200 liters of hot water a day, in the seasons other than summer, when the electricity usage rate during the daytime is low, use electricity during the nighttime, and allow for a margin of 50 liters. Hot water (for example, 85 ° C.) is boiled at night, stored in a hot water storage tank 26 and kept warm. In the daytime, when there is a demand for hot water exceeding a surplus amount, the heat pump unit 11 is operated each time to boil the hot water. As described above, since the amount of hot water stored in the hot water storage tank 26 is reduced as compared with the summer, waste of power consumption for heat retention is suppressed.
[0052]
Here, the kitchen remote controller 79 includes an operation unit 91 and a display unit 92. The operation unit 91 has a hot water supply operation switch 93, a hot water supply temperature increase switch 94, a hot water supply temperature decrease switch 95, a day of the week switch 96, and an operation switch. A hot water storage amount increasing switch 98 and a hot water storage amount reducing switch 99 are arranged. Further, in the kitchen remote controller 79, as shown in FIG. 6, the microcomputer 110 inputs signals from the switches 93 to 99, changes the display on the display unit 92 via the driver circuit 111, and As described above, the communication device 112 is provided so as to be able to communicate with the control device 15B via the communication circuit 112.
[0053]
With the configuration described above, according to the above embodiment, the following effects (1) to (4) can be obtained.
[0054]
(1) The internal timer 114 of the microcomputer 81 sequentially corrects its own date (season), day of the week, and time using the time data in the long wave standard time radio wave detected by the long wave standard time radio wave detection circuit 82 of the control device 15B. Therefore, accumulation of the time error in the internal timer 114 can be prevented. For this reason, the time of the internal timer 114 can be maintained at low cost and with high accuracy.
[0055]
(2) The CPU 113 of the microcomputer 81 in the control device 15B operates the heat pump unit 11 during the night time using the date (season), day of the week, and time of the internal timer 114 maintained with high accuracy, and Since the water or hot water in the inside is heated and boiled, it is possible to reliably prevent the night time zone from deviating from the night time zone in the seasonal time zone-specific light contract data stored in the ROM 115 in advance. For this reason, the usage fee of the power consumed during the heating operation of the hot water or the water in the hot water storage tank 26 by the heat pump unit 11 can be maintained at a low cost, and the power usage fee based on the seasonal time zone-specific lighting contract can be reduced.
[0056]
{Circle around (3)} The microcomputer 81 of the control device 15B changes the operation of the heat pump unit 11 using nighttime power every season, and increases or decreases the amount of hot water stored in the hot water storage tank 26 every season. That is, in summer, the amount of hot water stored in the hot water storage tank 26 is increased to reliably prevent the operation of heating the hot water or water in the hot water storage tank 26 during the daytime, and in seasons other than summer, The amount of hot water stored in hot water storage tank 26 is reduced as compared with the case in summer, and power consumption for keeping the hot water in hot water storage tank 26 low is reduced. As a result, it is possible to reduce the electricity usage fee based on the seasonal time zone light contract.
[0057]
(4) When the power is turned on after the installation work of the heat pump water heater 10 is completed, the internal timer 114 sets its own date (season) based on the time data in the long wave standard time radio wave detected by the long wave standard time radio wave detection circuit 82, Since the day of the week and the time are automatically set, a time setting error in the internal timer 114 can be reliably prevented.
[0058]
As described above, the present invention has been described based on the above embodiment, but the present invention is not limited to this.
[0059]
For example, the longwave standard time radio wave detection circuit 82 is not installed in the control device 15B, but is installed in the kitchen remote controller 79 as shown in FIG. However, the communication circuit 112 of the kitchen remote controller 79 and the communication circuit 90 of the control device 15B may be configured to be able to transmit to the microcomputer 81 of the control device 15B.
[0060]
Further, in the above-described embodiment, the case where the heat source unit is the heat pump unit 11 has been described, but the heat source unit may be a boiler or the like.
[0061]
【The invention's effect】
According to the hot water storage type hot water supply apparatus according to the first to sixth aspects of the present invention, it is possible to reduce a power usage fee based on a seasonal time zone-specific lighting contract.
[0062]
According to the operating method of the hot water storage type hot water supply device according to the inventions set forth in claims 7 and 8, it is possible to reduce the power usage fee based on the seasonal time zone-specific lighting contract.
[Brief description of the drawings]
FIG. 1 is a circuit diagram showing a heat pump type hot water supply apparatus to which an embodiment of a hot water storage type hot water supply apparatus according to the present invention is applied, in which water in a hot water storage tank is heated and hot water is stored in the tank. is there.
FIG. 2 is a circuit diagram when hot water is supplied to a faucet in FIG.
FIG. 3 is a circuit diagram when pouring into a bathtub in FIG. 1;
FIG. 4 is a circuit diagram when the hot water or water in the bathtub is heated (reheated) to keep the temperature in FIG. 1;
FIG. 5 is a block diagram showing a control device 15B of FIG. 1;
FIG. 6 is a block diagram showing the kitchen remote controller of FIG. 1;
FIG. 7 is a table showing seasonal time zone light contract data stored in the ROM of FIG. 5;
[Explanation of symbols]
10 Heat pump type hot water supply device (hot water storage type hot water supply device)
11 Heat pump unit (heat source unit)
12 Tank unit 15B Controller 16 Compressor 18 Heat pump heat exchanger 26 Hot water storage tank 27 Heat exchanger for hot water supply (refrigerant to water heat exchanger)
81 microcomputer 82 long-wave standard time radio wave detection circuit 90 communication circuit 113 CPU
114 Internal timer 115 ROM

Claims (8)

Hot-water supply type hot water supply having a tank unit having a hot water storage tank capable of storing hot water or water, a heat source unit capable of heating hot water or water in the hot water storage tank, and a control device for controlling operation of the heat source unit and the like In the device,
The above-mentioned control device is configured to operate the heat source unit using time data of a long-wave standard time radio wave and based on data based on a pre-stored season-specific time-zone-specific light contract, wherein the heat source unit is operated. apparatus. The control device compares the season and the date and time taken from the time data of the long-wave standard time radio wave with data based on the seasonal time zone-specific lighting contract, and changes the operation of the heat source unit using night power for each season, The hot water storage type hot water supply apparatus according to claim 1, wherein the amount of hot water stored in the hot water storage tank is controlled to increase or decrease every season. 3. The hot-water storage type hot-water supply device according to claim 1, wherein the control device has a detection circuit capable of detecting a long-wave standard time radio wave. A detection circuit capable of detecting a long-wave standard time radio wave is provided in a remote controller connected to the control device, and time data of the detected radio wave can be transmitted to the control device. Item 3. A hot water storage type hot water supply device according to item 1 or 2. The hot water supply apparatus according to any one of claims 1 to 4, wherein the control device is provided in a tank unit. 6. The heat pump unit according to claim 1, wherein the heat source unit includes a compressor, a heat pump heat exchanger, and a refrigerant-to-water heat exchanger, and is a heat pump unit that can heat water or hot water by refrigerant heat. A hot-water storage type hot water supply apparatus according to item 1. In an operation method of a hot water supply type hot water supply device having a tank unit having a hot water storage tank capable of storing hot water or water and a heat source unit capable of heating hot water or water in the hot water storage tank,
A method of operating a hot water supply type hot water supply apparatus, comprising operating the heat source unit using time data of a long-wave standard time radio wave and based on data based on a pre-stored seasonal and time-based light contract. The season and date are taken from the time data of the above-mentioned standard time radio wave, and the season and date are compared with the data based on the seasonal time-specific lighting contract to change the operation of the heat source unit using nighttime power for each season. The method according to claim 7, wherein the amount of hot water stored in the hot water storage tank is controlled to increase or decrease every season.

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