JP2002089967A - Heating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a heating system capable of confirming a removal of an operation interrupting function even by removing the interrupting function when a display of a remote controller does not display a number of operation interruption residual days during interruption of operation. SOLUTION: A display unit 204 displays the effect that the operation interrupting function is removed for a predetermined time (e.g. 2 s) on a display unit 204 (e.g. interruption for 0 day) (step S5), when the interrupting function is removed (step S4) after the function is set (step S2) when it becomes a normal display for displaying a hot water temperature or the like (step S1), and can thus confirm that the function is removed even by removing the function when the display of the remote controller does not display the number of operation interruption residual days.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to an electric water heater for heating water in a hot water storage tank.

[Prior art]

There is an electric water heater as a heating device of this kind, and in order to cope with an electricity bill set by an electric power company for the purpose of equalizing the electric power demand, the electric water heater is used for one day by using cheap electric power at midnight. There is a type that stores hot water in a hot water storage tank. In this type of electric water heater, the current time is set with a remote controller, and based on the set current time, when the electricity rate is low at midnight, the heater is energized to heat the water in the hot water storage tank and used every day. I try to store hot water.

[0003] In addition, this type of electric water heater has a hot water supply temperature setting function for setting a hot water supply temperature by opening a faucet with a remote controller according to a use or a preference, and is wasteful when leaving home for a while on a trip. There is an operation stop function that prohibits energization of the heater for a number of days set by the remote controller to prevent excessive boiling, and a display function that displays the current time and hot water supply temperature on the display unit of the remote controller. further,
Some have a function of displaying the number of remaining days of operation suspension on the remote control when the operation suspension function is set.

[0004] Here, the number of remaining days of operation suspension is obtained by subtracting the elapsed days from the set number of days of operation suspension. If the operation suspension is set to 7 days, the number of remaining days of operation suspension after 5 days has elapsed is 2 days. Becomes

[0005] When the above-mentioned operation suspension function is set and the number of remaining operation suspension days is 1 or more (= during operation suspension), the limited display of the remote controller has a high priority instead of the remaining operation suspension day number. Display hot water temperature or refer to
As in the invention of 00-227265, there are many cases where the user is away from home during operation suspension, and the necessity of the display function is low. In general, the display unit is set to a non-display state in order to reduce standby power.

[0006]

However, in the conventional electric water heater, when the hot water supply temperature is displayed while the operation is stopped, or when the display unit is in a non-display state, returning home hastened. Even if the operation stop function is canceled, the display of the hot water temperature is continued in the former case, and the non-display state is continued in the latter case, or the normal display (for example, the hot water temperature display)
Or return to the non-display state after temporarily displaying the normal display, so that it is not possible to confirm that the operation stop function has been released.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to cancel the operation stop function when the display on the remote controller does not indicate the number of days remaining for operation stop during operation stop. Another object of the present invention is to provide a heating device capable of confirming that the operation stop function has been released.

[0008]

[Means for Solving the Problems and Their Functions and Effects]

In order to achieve the above object, in claim 1,
An operation suspension comprising a heating unit for heating water with a heater, a main body control unit for controlling energization of the heating unit, a clock function unit, and a switch for setting / releasing a number of days for prohibiting energization of the heating unit. A setting unit and a remote controller that has a display unit for displaying the number of days and the operation state set by the operation suspension setting unit and communicates control information with the main unit control unit, and the operation suspension days are set by the operation suspension setting unit In the case where the number of days elapsed since the time set by the clock function unit is monitored, the number of remaining days of operation suspension is subtracted from the set number of days, and the remaining number of days of operation suspension is monitored until the remaining number of days of operation becomes zero. Is controlled by the main body control unit so as to prohibit energization of the remote controller. If the number of days of operation suspension is set by the operation suspension setting unit and the number of remaining days of operation suspension is 1 or more (= during operation suspension), the remote controller Is the display In the heating apparatus for a display state,
When the operation suspension is canceled by the operation suspension setting unit when the display unit is in the non-display state, the remote controller causes the display unit to temporarily display that the operation suspension has been canceled for a predetermined time. Therefore, even if the operation stop function is canceled when the display of the remote controller does not indicate the remaining operation days but the hot water supply temperature during the operation stop, it can be confirmed that the operation stop function has been canceled.

According to a second aspect of the present invention, there is provided a heating unit for heating water with a heater, a main body control unit for controlling energization of the heating unit,
An operation stop setting unit including a clock function unit and a switch for setting / releasing the number of days for prohibiting energization of the heating unit, a display unit for displaying the number of days and an operation state set by the operation stop setting unit, and the display. A display on / off switch for switching the unit between a display state and a non-display state, and a remote controller that communicates control information with the main body control unit. The number of days elapsed from the set time measured by the clock function unit is monitored, and the number of remaining days of operation suspension is monitored from the set number of days, and energization to the heating unit is prohibited until the number of remaining days of operation suspension becomes zero. In the case where the number of days of operation suspension is set by the operation suspension setting unit and the number of days of operation suspension is 1 or more (= during operation suspension), the remote controller operates as follows.
In the heating device that displays the remaining number of days of operation suspension on the display unit, and the remote controller turns off the display on / off switch to turn off the display unit, when the display unit is in the non-display state, When the operation suspension is released by the operation suspension setting unit, the remote controller causes the display unit to temporarily display that the operation suspension has been released for a predetermined time. Therefore, the display of the remote control is in a non-display state during the suspension of the operation, and it is possible to confirm that the operation suspension function is released even if the operation suspension function is released when the remaining operation suspension days are not displayed.

According to a third aspect of the present invention, there is provided a heating unit for heating water with a heater, a main body control unit for controlling energization of the heating unit,
A hot water supply detecting section for detecting hot water use, a clock function section, a temperature setting section for setting hot water supply temperature, an operation stop setting section including a switch for setting / releasing a number of days for prohibiting energization of the heating section, and the operation A remote control that has a display unit that displays the number of days and the operating state set by the suspension setting unit and communicates control information with the main body control unit, and when the number of days of operation suspension is set by the operation suspension setting unit, The number of days elapsed from the set time measured by the clock function unit is monitored to monitor the number of remaining days of operation suspension that is subtracted from the set number of days, and until the number of remaining days of operation suspension becomes zero, energization to the heating unit is prohibited. As described above, while being controlled by the main body control unit, the number of days of operation suspension is set by the operation suspension setting unit, and if the number of remaining operation suspension days is 1 or more (= operation suspension), the remote controller displays the display. Part The remaining number of days of operation suspension is displayed, and when the hot water supply detection unit detects the use of hot water and the remote control receives the detection signal, the hot water supply set by the temperature setting unit on the display unit instead of the remaining number of days of operation suspension. In the heating device for displaying the temperature, when the hot-water supply temperature is displayed on the display unit, if the operation halt is canceled by the operation halt setting unit, the operation halt is released on the display unit. Is temporarily displayed for a predetermined time. Therefore, it is confirmed that the operation stop function is released even if the display of the remote control is manually turned off by the switch operation during operation suspension and the operation suspension function is released when the remaining operation suspension days are not displayed. it can.

[0012]

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

FIG. 1 is a configuration diagram of an electric water heater according to an embodiment of the present invention.

First, water from a water supply source is depressurized by a pressure reducing valve 1, and is branched into a water supply pipe 2 and a bypass pipe 3 downstream of the pressure reducing valve 1. The bypass pipe 3 is a downstream hot water supply mixing ratio adjusting valve 46A.
Feed water temperature sensor 4 that detects the feed water temperature
1. A vacuum breaker 51 is provided for canceling a negative pressure when a negative pressure is generated in the pipe such as when water is cut off. The water supply pipe 2 communicates with a heating unit 31. The heating unit 31 includes a hot water storage tank 32, a lower heater 33, and an upper heater 34.
It is composed of The water in the hot water storage tank 32 is heated by the lower heater 33 and the upper heater 34 so that the lower heater 33 has a high temperature detected by the tank first temperature sensor 37 and the upper heater 34 has a high temperature detected by the third tank temperature sensor 39. Further, a drain valve 36 is provided below the hot water storage tank 32. Further, a safety valve 35 for releasing expansion water generated when the water in the hot water tank 32 is heated is provided at an upper portion of the hot water storage tank 32.

In the hot water mixing ratio adjusting valve 46A driven by the stepping motor, water from the bypass pipe 3 and high-temperature water from the high-temperature hot water pipe 4 are mixed, and hot water of an appropriate temperature is supplied to the hot-water pipe 8
Supplied to The hot water supply pipe 8 is provided with a hot water supply temperature sensor 43A for detecting hot water supply temperature and a hot water supply flow rate sensor 44 as hot water supply detection means for detecting supply of hot water to the hot water supply pipe 8. Further, the high-temperature hot water supply pipe 4 is provided with a high-temperature water temperature sensor 42 for detecting the temperature of the high-temperature hot water supplied from the heating unit 31.

The hot water supply pipe 5 branched from the hot water supply pipe 4 is connected to a hot water mixing ratio adjusting valve 46B via a first solenoid valve 22 for starting / stopping the supply of high temperature water. On the other hand, the vacuum breaker 51
The hot water bypass pipe 7 branched downstream of the hot water is connected to a hot water mixing ratio adjusting valve 46B via a second solenoid valve 23 for starting / stopping the supply of water.

In the hot water mixing ratio adjusting valve 46B driven by the stepping motor, water from the hot water bypass pipe 7 and high-temperature water from the hot-water hot water supply pipe 5 are mixed, and high-temperature water, water, and hot water of the appropriate temperature are mixed. Either is supplied to the hot water supply pipe 9. The hot water supply pipe 9 has a hot water temperature sensor 43B for detecting the hot water temperature and a hot water flow sensor 4 for detecting the flow rate of hot water supplied to the hot water supply pipe 9.
5 and check valve 52,5 to prevent backflow from bathtub 62
3 is provided. The hot water supply pipe 9 further communicates with an adapter 61 attached to the wall surface of the bathtub 62.

The electric water heater 100 is provided with a main controller 70.
It has. The main body control unit 70 detects the remaining hot water amount in the hot water storage tank 32 based on the detected temperatures of the tank first temperature sensor 37, the tank second temperature sensor 38, the tank third temperature sensor 39, and the tank fourth temperature sensor 40. Based on detection signals from the hot water amount detection unit 91, the feed water temperature sensor 41, the hot water temperature sensor 42, the hot water temperature sensor 43 A, the hot water flow sensor 44, the hot water temperature sensor 43 B, the hot water flow sensor 45, and the like, and an operation instruction from the remote controller 71. Hot water mixing ratio adjusting valve 46A and hot water mixing ratio adjusting valve 46B
Hot water supply for controlling the first solenoid valve 22 and the second solenoid valve 23, etc.
A hot water supply control unit 92, a hot water supply detection unit 93 that detects hot water use based on a detection signal of the hot water flow sensor 44, detection signals of the tank first temperature sensor 37 and the tank third temperature sensor 39, and an operation instruction from the remote controller 71. A heater control unit 94 controls the lower heater 33 and the upper heater 34 based on the current time set by the remote controller 71, and a main body communication unit 95 for mutually communicating with the remote controller 71 through the communication line 73.

The remote controller 71 sets a current time and counts the time. The clock function section 201 sets the current time. The current time measured by the clock function section 201 is during daytime (normally from 7:00 to 23:00).
, The daytime boiling operation unit 202 having a full-boiler switch that is turned on when instructing the lower heater 33 to be energized and a small-boiler switch that is turned on when instructing the upper heater 34 to be energized; Is set, and the operation stop setting unit 203 instructs the heater control unit 94 to prohibit energization of the lower heater 33 and the upper heater 34 for a set number of days, and set values such as a hot water supply temperature set by the remote controller 71. Display 204 for displaying operating information such as the remaining hot water amount detected by the hot water supply detecting unit 91, a hot water supply temperature setting switch for setting a set temperature of hot water supplied from the hot water supply pipe 8, and setting of hot water to be poured into the bathtub 62. A temperature setting unit 20 including a hot water temperature setting switch for setting a temperature and a boiling temperature setting switch for setting a boiling temperature in the hot water storage tank 32.
5. A hot water switch that is turned on when hot water is supplied to the bathtub 62, a hot water hot water switch that is turned on when hot water is supplied into the bathtub 62, and a hot water switch that is turned on when water is supplied into the bathtub 62 The water heater operation unit 206 including a water switch and a water heater setting switch for setting the amount of hot water to be poured into the bathtub 62, set temperature information set by the temperature setting unit 205 through the communication line 73, and operation of the electric water heater 100. Communication means 208 for mutually communicating information and the like with main body control unit 70
It has.

With the above configuration, when it is recognized that the current time measured by the clock function unit 201 of the remote controller 71 is in the night time zone (usually from 23:00 to 7:00 the next day), the main body control unit 70 The heater control unit 94 instructs the lower heater 33 to be energized, and supplies the water in the hot water storage tank 32 to the remote controller 71 using the late-night electric power.
Boil until the boiling set temperature set by the temperature setting unit 205 is detected. When the hot water tap connected from the electric water heater 100 via the external pipe is opened, the hot water in the boiling hot water storage tank 32 is discharged. The temperature of the spouted water can be set by the temperature setting unit 205 according to the application and preference. When the hot water in the hot water storage tank 32 is used for hot water to the bathtub 62, the hot water operating section 20 is used.
6. Turn on the hot water switch. The hot water temperature at this time can be set as desired by the temperature setting unit 205.

When hot water is used in the hot water storage tank 32, water is supplied from the lower portion of the hot water storage tank 32 to reduce the remaining hot water amount. Therefore, the user needs to use the hot water while checking the remaining hot water amount. Therefore, for example, the remaining hot water amount detected by the remaining hot water detecting unit 91 is 300 liters or more, the remaining hot water amount is 150 liters or more and less than 300 liters, and the remaining hot water amount is 100 liters or more and 150 liters.
The remaining hot water amount information, such as less than 1 liter, remaining hot water amount of 50 liters or more and less than 100 liters, and remaining hot water amount of less than 50 liters, is displayed on the display unit 204 of the remote controller 71 as a numerical value or picture display so that the remaining hot water amount can be confirmed. If the amount of hot water used by a visitor or the like becomes large and the amount of hot water is likely to be short, the water in the hot water storage tank 32 can be heated even in the daytime by turning on the full boiling switch or the small boiling switch. It is like that. Then, when the amount of hot water used by a visitor or the like becomes large and the amount of hot water is likely to be insufficient, the water in the hot water storage tank 32 can be heated even in the daytime by turning on the full boiling switch or the small boiling switch. It is like that.

Further, the electric water heater 100 has an operation stop function for preventing useless boiling when the user is away for a while on a trip. Specifically, when the number of days of operation suspension is set by the operation suspension setting unit 203, the heater control unit continues until the set number of days elapses, even if the current time measured by the clock function unit 201 is in the night time zone. 94 instructs not to energize the lower heater 33 and suspends boiling at midnight, and the current time measured by the clock function unit 201 increases during the daytime during the daytime, and the total heating switch of the operation unit 202 increases. The heater controller 94 instructs the lower heater 33 and the upper heater 34 not to be energized even if the small amount of boiling switch is operated, and suspends the daytime boiling.

When the operation suspension function is set, the number of remaining operation suspension days obtained by subtracting the elapsed days from the set operation suspension days is displayed on the display unit 204. The hot water supply temperature set by the setting unit 205 and the current time measured by the clock function unit 201 are also displayed on the display unit 204.
To be displayed.

Here, a first switching example of the display unit 204 when the operation stop function is set and canceled or terminated will be described with reference to the flowchart of FIG. The display unit 204 is normally a normal display for displaying the hot water supply temperature set by the setting unit 205, for example, as shown in FIG. 5 (step S1). First, the operation suspension function is set by setting the number of operation suspension days by a switch operation of the operation suspension setting unit 203 (step S2). Next, the operation suspension setting unit 2
When the operation stop function is released by re-operating the switch 03 (step S4), the display unit 204 indicates that the operation stop function has been released for a predetermined time (for example, 2 seconds) (for example, "0 day pause"). It is displayed (step S5). If the operation stop function is not set in step S2, the normal display is continued (step S1). Step S
4. If the set number of days of operation elapses and the operation halt function ends without releasing the operation halt function in step 4 (step S6)
Returns to the normal display (step S1).

As described above, even if the hot water supply temperature is displayed during suspension of operation and the operation stop function is canceled when the display on the remote control does not indicate the number of remaining operation suspension days, it is confirmed that the operation suspension function has been canceled. You can check.

Next, a second switching example of the display unit 204 will be described with reference to the flowchart of FIG. Display 2
The normal display 04 is a normal display for displaying, for example, the hot water supply temperature set by the setting unit 205 as shown in FIG. 5 (step S11). First, the operation suspension function is set by setting the operation suspension days by a switch operation of the operation suspension setting unit 203 (step S12).
04 is in a non-display state (step S13). Next,
When the switch operation of the operation stop setting unit 203 is performed again to release the operation stop function (step S14),
The display unit 204 displays that the operation suspension function has been released for a predetermined time (for example, 2 seconds) (for example, “0 day suspension”) (step S15). If the operation stop function is not set in step S12, the normal display is continued (step S1).
1). In addition, if the operation suspension function is not canceled in step S14 and the operation suspension function ends after the set operation suspension days have elapsed (step S16), the display returns to the normal display (step S11).

In the non-display state during suspension of operation, when the hot water supply temperature setting switch of the setting unit 205 is operated,
Hot water supply detection unit 93 detects the use of hot water supply,
1 is received, or when the hot water supply is completed by the hot water / hot water supply control unit 92, the remote control 71 receives it.
When displaying on the display unit 204 that bathing is possible,
The hot water supply temperature or the remaining number of days of operation suspension as shown in FIG. 6 may be displayed temporarily.

As described above, during the suspension of operation, the display of the remote control is in a non-display state, and even if the suspension function is released when the number of remaining days of suspension is not displayed, the suspension function is released. Can be confirmed.

Further, a third switching example of the display unit 204 will be described with reference to the flowchart of FIG. In this case, the process starts from a state where the display unit 204 is set to the non-display state by the display on / off switch 207 in advance (step S21). First, the operation suspension function is set by setting the operation suspension days by a switch operation of the operation suspension setting unit 203 (step S22). Next, when the switch operation of the operation stop setting unit 203 is performed again to release the operation stop function (step S24), the display unit 2
04 indicates that the operation suspension function has been released for a predetermined time (for example, 2 seconds) (for example, “0 day suspension”) (step S).
25). If the operation stop function is not set in step S22, the non-display state is continued (step S21).
When the operation stop function is not canceled in step S24 and the operation stop function ends after the set operation stop days have elapsed (step S26), the operation returns to the non-display state (step S21).

In the non-display state during suspension of operation, when the hot water temperature setting switch of the setting unit 205 is operated,
Hot water supply detection unit 93 detects the use of hot water supply,
1 is received, or when the hot water supply is completed by the hot water / hot water supply control unit 92, the remote control 71 receives it.
When displaying on the display unit 204 that bathing is possible,
The hot water supply temperature or the remaining number of days of operation suspension as shown in FIG. 6 may be displayed temporarily.

In the above case, the operation is started from the state in which the display unit 204 is set to the non-display state by the display on / off switch 207. However, the display on / off switch is set during the operation suspension after the operation suspension function is set in step S22. 207
The same applies to step S24 and subsequent steps when the display unit 204 is set to the non-display state.

As described above, even if the display of the remote controller is turned off manually by operating the switch during the operation suspension, and the operation suspension function is canceled when the number of remaining operation suspension days is not displayed, the operation suspension function is maintained. You can confirm that it has been released.

Although the first to third switching examples have been described above, they may be implemented in combination.

The display section of the remote controller 71 may have various configurations such as a display using a liquid crystal display element or a light emitting diode in addition to the fluorescent display tube.

Although an electric water heater is used in this embodiment, the present invention can also be applied to a gas or oil hot water heater, or a combination of a heat pump and a solar water heater.

[Brief description of the drawings]

FIG. 1 is an electric water heater 10 according to an embodiment of the present invention.
Configuration diagram of 0

FIG. 2 is a flowchart showing a first switching example of a display unit 204;

FIG. 3 is a flowchart showing a second switching example of the display unit 204;

FIG. 4 is a flowchart showing a third switching example of the display unit 204;

FIG. 5 is a display example of a normal display on the display unit 204.

FIG. 6 is a display example of the display unit 204 during operation suspension.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Pressure reducing valve 2 ... Water supply pipe 3 ... Bypass pipe 4 ... Hot water supply pipe 5 ... Hot water hot water supply pipe 7 ... Hot water bypass pipe 8 ... Hot water supply pipe 9 ... Hot water supply water supply pipe 22 ... First solenoid valve 23 ... Second Solenoid valve 31 ... Heating part 32 ... Hot water storage tank 33 ... Lower heater 34 ... Upper heater 35 ... Safety valve 36 ... Drain valve 37 ... Tank first temperature sensor 38 ... Tank second temperature sensor 39 ... Tank third temperature sensor 40 ... Tank Four temperature sensors 41: Feed water temperature sensor 42: Hot water temperature sensor 43A: Hot water temperature sensor 43B: Hot water temperature sensor 44: Hot water flow rate sensor 45: Hot water flow rate sensor 46A: Hot water mixing ratio adjusting valve 46B: Hot water mixing ratio adjustment Valve 51 ... Vacuum breaker 52 ... Check valve 53 ... Check valve 61 ... Adapter 62 ... Bathtub 70 ... Body control unit 71 ... Remo 73: communication line 91: remaining hot water amount detection unit 92: hot water supply / hot water control unit 93: hot water supply detection unit 94: heater control unit 95: main body communication means 100: electric water heater 201: clock function unit 202: daytime boiling operation Unit 203: Operation stop setting unit 204: Display unit 205: Setting unit 206: Hot water operation unit 207: Display on / off switch 208: Communication means

Claims (3)

[Claims] 1. A heating section for heating water with a heater, a main body control section for controlling energization to the heating section, a clock function section, and a control section for setting / releasing the number of days for prohibiting energization to the heating section. An operation stop setting unit including a switch and a remote controller having a display unit for displaying the number of days and the operation state set by the operation stop setting unit and communicating control information with the main body control unit, the operation stop setting unit If the number of days of operation suspension is set, the number of days of operation since the time set by the clock function unit is subtracted from the set number of days to monitor the number of remaining days of operation suspension until the number of remaining days of operation suspension becomes zero. Is controlled by the main body control unit so as to prohibit energization to the heating unit, the number of days of operation suspension is set by the operation suspension setting unit, and the number of remaining operation suspension days is 1 or more (= operation suspension). The remote control In the heating device for setting the display unit to the non-display state, when the display unit is in the non-display state, when the operation stop is released by the operation stop setting unit, the remote control is released from the operation stop on the display unit. Is temporarily displayed for a predetermined time. 2. A heating section for heating water with a heater, a main body control section for controlling energization of the heating section, a clock function section, and a setting section for canceling the number of days during which energization of the heating section is prohibited. A control having an operation stop setting unit including a switch, a display unit for displaying the number of days and the operation state set by the operation stop setting unit, and a display on / off switch for switching the display unit to a display state / non-display state A remote controller that communicates information with the main body control unit, and when the number of days of operation suspension is set by the operation suspension setting unit, the number of days elapsed from the time set by the clock function unit is set from the set number of days. The reduced number of remaining days of operation is monitored, and the main body controller is controlled to prohibit energization of the heating unit until the number of remaining days of operation is reduced to zero. Is set, When the number of remaining days of operation suspension is 1 or more (= during operation suspension), the remote controller displays the number of remaining days of operation suspension on the display unit, and the remote controller turns off the display on / off switch. In the heating device for setting the display unit to the non-display state, when the display unit is in the non-display state, when the operation stop is released by the operation stop setting unit, the remote control is released from the operation stop on the display unit. Is temporarily displayed for a predetermined time. 3. A heating section for heating water with a heater, a main body control section for controlling energization of the heating section, a hot water supply detecting section for detecting hot water use, a clock function section and temperature setting for setting hot water temperature. Set the number of days to prohibit power supply to the heater and the heater /
An operation stop setting unit including a switch for canceling, and a remote controller having a display unit for displaying the number of days and the operation state set by the operation stop setting unit and communicating control information with the main body control unit; When the number of days of operation suspension is set by the suspension setting unit, the number of days of operation suspension is calculated by subtracting the number of days elapsed from the set time counted by the clock function unit from the set number of days. The main body control unit controls the energization to the heating unit until it becomes zero, and the operation suspension setting unit sets the operation suspension days, and the operation suspension remaining days is 1 or more (=
In the case of (during operation suspension), the remote control displays the number of remaining operation suspension days on the display unit, and when the hot water supply detection unit detects the use of hot water supply and the remote control receives a detection signal, the remote control unit displays the display unit. In the heating device that displays the hot water supply temperature set by the temperature setting unit instead of the number of remaining operation suspension days, when the display unit displays the hot water supply temperature,
When the operation suspension is canceled by the operation suspension setting unit,
The heating device, wherein the remote controller causes the display unit to temporarily display that the suspension of operation has been canceled for a predetermined time.