JPH11257732A - Hot water supply apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a hot water supply apparatus in which a user can select a remote controller for setting a hot water supply temperature an appropriately without requiring a switch for exclusive use. SOLUTION: The hot water supply apparatus comprises a heat exchanger 6 for heating supply water through a heating means 5 to produce hot water, a pipe 26 for supplying hot water to a bath room 25, a pipe 28 for supplying hot water to other hot water supply place 27, and a hot water supply control means 4. The bath room 25 is provided with a remote controller 48 and the other hot water supply place 27 is provided with a remote controller 49. The remote controller 48, 49 is provided with an operating switch and a temperature setting means and the remote controller 48 is further provided with a temperature setting selecting means 53. The means 53 can operate the temperature setting means of the remote controller 49 while sustaining operation of the means 4 upon receiving an operation stop command from the operation switch when the temperature setting means is operable and upon operation of the temperature setting means when a temperature setting means is operable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply apparatus for supplying hot water to a bathroom and a hot water supply place other than the bathroom, such as a kitchen.

[0002]

2. Description of the Related Art Conventionally, a heat exchanger for supplying hot water by heating supplied water with a gas burner is provided, and the hot water obtained by the heat exchanger is used in a bathroom, a kitchen, a lavatory or the like other than a bathroom. There is known a hot water supply device for supplying a hot water to a hot water supply place.

[0003] The hot water supply device includes a controller instructed to operate by a bath remote control provided in a bathroom or a main remote control provided in a kitchen or the like, and the controller controls the hot water supply operation in the bathroom, kitchen, washroom, or the like. Control. Each of the remote controls includes an operation switch for instructing the controller to operate, and various switches such as an up / down switch as a temperature setting unit for setting a hot water supply temperature of the hot water supply apparatus, and starts operation of the hot water supply apparatus independently from each remote control. And setting of hot water supply temperature.

The controller is activated when an operation is instructed from the bath remote controller or the main remote controller, and detects a water flow generated when the bathroom, the kitchen, the lavatory or the like is opened, and detects the water flow. When the start of water supply to the heat exchanger is recognized, the gas burner is burned to heat the heat exchanger, and the hot water supply operation is started in which the water supplied to the heat exchanger is turned into hot water and supplied to the curan.

[0005] In the hot water supply apparatus, a hot water supply temperature of, for example, about 40 ° C is suitable when a shower or the like is used in a bathroom.
Generally, the hot water supply temperature differs depending on the place where the hot water is used, such as a hot water supply temperature of about 7 ° C. is suitable. Therefore, the controller stores the hot water supply temperature set by the bath remote controller or the main remote controller, and converts the hot water heated to the hot water supply temperature set by the remote controller to which the operation switch is turned on to the curler. To supply.

In this way, when the operation is instructed from the bath remote controller, a hot water supply at a temperature of, for example, about 40 ° C. suitable for use in a shower or the like is obtained. 37
Since a hot water supply at a temperature of about ° C. is obtained, it is not necessary to operate the temperature setting means to change the hot water supply temperature depending on the place where the hot water is used.

[0007] Further, in the hot water supply apparatus, there is known a bathroom remote control provided with temperature setting selection means for selecting one of the temperature setting means of each of the remote controls so as to be operable. According to the hot water supply device provided with the temperature setting selection means, for example, when performing a hot water supply operation to a kitchen or the like by instructing an operation start by a main remote controller, when using a shower in a bathroom, the temperature setting selection means When the temperature setting means of the bath remote control is selected and made operable, the hot water supply temperature set by the temperature setting means of the bath remote control in the bathroom, for example, 4
A hot water supply of 0 ° C. can be obtained. Also, the bath remote controller instructs the start of operation, performs hot water supply operation to the bathroom, and after the use of hot water in the bathroom is completed, selects the temperature setting unit of the main remote controller by the temperature setting selection unit to enable the operation. Then, in the kitchen or the like, a hot water supply temperature set by the temperature setting means of the main remote controller, for example, a hot water supply of 37 ° C. suitable for washing dishes can be obtained. In addition, in the bathroom, the hot water often comes into direct contact with the skin, such as a shower, in the bathroom, and the set temperature can be set by the main remote controller regardless of the intention of the user using the hot water in the bathroom. If changed, the user may feel uncomfortable. Therefore, in order to prevent this, only the bath remote control is provided.

However, in addition to the operation switch and the temperature setting means, the bath remote controller has a switch for selecting an operation mode of automatic hot water filling or additional heating, a switch for setting a hot water supply amount and a hot water supply temperature of the hot water filling, and a hot water supply. A temperature indicator or the like is provided, and if a dedicated switch is provided as the temperature setting selection means, the interval between the switches becomes narrower within a limited area, or the installation area of each switch becomes smaller. Therefore, there is a disadvantage that the operation becomes difficult.
Further, if a dedicated switch is provided as the temperature setting selecting means, there is a disadvantage that the number of switches is increased and the apparatus cost is increased. Furthermore, there is a problem that it is difficult for the user to fully understand the function of the temperature setting selecting unit, such as when to use it.

[0009]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned disadvantages and to select a remote controller for setting a hot water supply temperature in a hot water supply apparatus for supplying hot water to a bathroom and a hot water supply place other than the bathroom. It is an object of the present invention to provide a hot water supply apparatus that can select a remote controller for appropriately setting a hot water supply temperature without using a dedicated switch and without a user understanding the function of the temperature setting selection unit.

[0010]

In order to achieve the above object, a hot water supply apparatus according to the present invention is provided with a heat exchanger which obtains hot water by heating supplied water by a heating means, and a heat exchanger obtained by the heat exchanger. A first hot water supply pipe for supplying hot water to a bathroom, a second hot water supply pipe for supplying hot water obtained by the heat exchanger to another hot water supply location, and a hot water supply control means for controlling a hot water supply operation by the heating means A first operation switch provided in the bathroom, the operation switch instructing the hot water supply control means to operate, and a temperature setting means for setting a hot water supply temperature;
A second remote control provided at another hot water supply location and provided with an operation switch for instructing the hot water supply control means to operate and a temperature setting means for setting hot water supply temperature, and a remote control provided at the first remote control. And a temperature setting selection means for selecting one of the temperature setting means and enabling the operation. The temperature setting selection means is provided when the temperature setting means of the first remote control is operable. When an operation stop is instructed to the hot water supply control means by the operation switch, the temperature setting means of the second remote controller can be operated while maintaining the operation state of the hot water supply control means,
When the temperature setting means of the first remote control is operated while the temperature setting means of the second remote control is operable, the temperature setting means of the first remote control is made operable.

According to the hot water supply apparatus of the present invention, the temperature setting selecting means does not have a dedicated switch, and grasps the user's intention based on a situation when the operation switch of the first remote controller and the temperature setting means are operated. And according to the user ’s intention,
Select the remote control for setting the hot water temperature.

Therefore, in the hot water supply apparatus of the present invention, when the temperature setting means of the first remote control provided in the bathroom is operable, the operation switch of the remote control instructs the hot water supply control means to stop the operation. Then, the temperature setting selecting means determines that the user no longer needs hot water supply in the bathroom, and enables the temperature setting means of the second remote controller. At this time, the temperature setting selecting means includes:
When the hot water supply control means is stopped in accordance with the operation stop instruction by the operation switch of the first remote control, the hot water supply itself is stopped and there is no point in enabling the temperature setting means of the second remote control to operate. The instruction simply determines that the user has determined that the user no longer needs hot water supply in the bathroom, and the second operation is performed while maintaining the operation state of the hot water supply control means.
Operable temperature setting means of the remote controller.

Next, in the hot water supply apparatus of the present invention, when the temperature setting means of the second remote control provided in another hot water supply place such as a kitchen can operate, the first remote control provided in the bathroom can be operated. When the temperature setting means is operated, the temperature setting selection means determines that the user has performed the operation because the user needs hot water supply in the bathroom. The temperature setting selecting means enables the temperature setting means of the first remote controller to operate.

As described above, according to the hot water supply apparatus of the present invention, the operation switch and the temperature setting means of the first remote controller are used as the temperature setting selection means depending on the situation at the time of the operation. Dedicated switches for the means can be omitted. Further, according to the water heater of the present invention, by setting the situation in which the operation switch and the temperature setting means of the first remote controller are operated as described above, the temperature setting selection means can accurately determine the user's intention. It is possible to grasp and automatically enable appropriate temperature setting means of the remote controller. Therefore, in the hot water supply apparatus of the present invention, the user can select a remote controller for appropriately setting the hot water supply temperature without understanding the function of the temperature setting selection means.

[0015]

Next, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. FIG. 1 is a system configuration diagram showing an example of a water heater of the present invention, FIG. 2 is an external view of a remote controller provided in the water heater of FIG. 1,
FIG. 3 is a flowchart showing the operation of the hot water supply apparatus shown in FIG.

As shown in FIG. 1, a hot water supply device 1 of the present embodiment is shown.
Comprises a hot water supply unit 2 and a reheating unit 3, and the controller 4 controls the hot water unit 2 and the reheating unit 3.

The hot water supply unit 2 is connected to a hot water supply heat exchanger 6 heated by a hot water supply burner 5 (heating means) operated by a control signal from a controller 4 and a water pipe (not shown) to supply the hot water supply heat exchanger 6 with water. Water supply pipe 7, controller 4
Water servo 8 for controlling the degree of opening of the water supply pipe 7 by a control signal from the
, A water flow sensor 10 that detects the presence or absence of a water flow passing through the water supply pipe 7 and outputs the same to the controller 4, a hot water supply pipe 11 from which hot water heated by the hot water supply heat exchanger 6 is discharged, and a water supply pipe 7, a bypass pipe 12 for mixing a part of the water supplied to the hot water supply pipe 11, a bypass servo 13 for adjusting the degree of opening of the bypass pipe 12 by a control signal from the controller 4, and a downstream of a junction with the bypass pipe 12. Hot water supply pipe 1
The hot water supply temperature sensor 14 detects the temperature of the hot water in 1 and outputs the same to the controller 4 and the heat exchange temperature sensor 15 detects the temperature of the hot water near the outlet of the hot water supply heat exchanger 6 and outputs the same to the controller 4.

The controller 4 is connected to the gas supply pipe 16.
An original gas solenoid valve 17 that is opened and closed by a control signal from the controller is provided. A hot water supply gas supply pipe 16a that branches off from the gas supply pipe 16 downstream of the original gas electromagnetic valve 17 and supplies fuel gas to the hot water supply burner 5 includes: Hot water supply gas solenoid valves 18 and 19 and a hot water supply gas proportional valve 20 whose opening is adjusted by a control signal from the controller 4 are provided.

Reference numeral 21 denotes a hot water supply combustion fan for supplying combustion air to the hot water supply burner 5, the rotation speed of which is variable by a control signal from the controller 4. Reference numeral 22 denotes a hot water supply ignition plug that receives a high voltage through an igniter 23 in response to a control signal from the controller 4 and ignites the hot water supply burner 5. Reference numeral 24 denotes a hot water supply that detects the combustion state of the hot water supply burner 5 and outputs it to the controller 4. It is a frame rod.

Downstream of the hot water supply temperature sensor 14, the hot water supply pipe 11 branches into a bathroom hot water supply pipe 26 for supplying hot water to the bathroom 25 and a kitchen hot water supply pipe 28 for supplying hot water to the kitchen 27.
6. At the end of the hot water supply pipe 28, callan 29,3 respectively
0 is provided.

On the other hand, the reheating unit 3 comprises a bath heat exchanger 32 heated by a bath burner 31 operated by a control signal from the controller 4, a hot water in a bathtub 33 by a control signal from the controller 4, and a circulation path 34. Bath heat exchanger 3
Circulating pump 35, a bath temperature sensor 36 for detecting the temperature of hot water in bath tub 33 and outputting to controller 4, and a water flow sensor for detecting presence / absence of water flow in circulation path 34 and outputting to controller 4. 37 is provided.

A bath gas supply pipe 16 b that branches off from the gas supply pipe 16 and supplies fuel gas to the bath burner 31 downstream of the original gas solenoid valve 17 has a bath gas that is opened and closed by a control signal from the controller 4. An electromagnetic valve 38 and a bath gas proportional valve 39 whose opening is adjusted by a control signal from the controller 4 are provided.

Reference numeral 40 denotes a bath combustion fan for supplying combustion air to the bath burner 31, whose rotation speed is varied by a control signal from the controller 4. Reference numeral 41 denotes a bath ignition plug that ignites the bath burner 31 when a high voltage is applied from the igniter 23 according to a control signal from the controller 4. Reference numeral 42 denotes a bath frame rod for detecting the combustion state of the bath burner and outputting it to the controller 4.

The circulation path 34 is connected to the bathroom hot water supply pipe 26 via a pouring electromagnetic valve 43, a hot water supply pipe 44, and a three-way valve 45 which are opened and closed by a control signal from the controller 4. By opening the pouring solenoid valve 43, hot water is supplied from the hot water supply unit 2 to the bathtub 33. Reference numeral 46 denotes a flow rate sensor for detecting the flow rate of hot water supplied to the bathtub 33 when the pouring solenoid valve 43 is opened and outputting the flow rate to the controller 4, and 47 for detecting the level of hot water in the bathtub 33 by hydrostatic pressure. 4 is a water level sensor that outputs a signal.

The controller 4 includes a CPU, ROM, RA
M, etc., and a bath remote controller 48 provided in the bathroom 25 or a main remote controller 49 provided in the kitchen 27.
The hot water supply unit 2 and the additional heating unit 3 are controlled in accordance with various operation information instructed by the controller.

Next, referring to FIG. 2A, bath remote controller 48 includes an operation switch 51 for instructing controller 4 to operate, and an up / down switch 52 for setting the hot water temperature by hot water heat exchanger 6. Provided, temperature setting selection means 5
3 (see FIG. 1). 54 is a hot water temperature indicator for displaying hot water temperature, 55 is a combustion display lamp indicating that the hot water burner 5 is in a combustion state, 56 is a bath remote controller 48 selected by the temperature setting selecting means, and an up / down switch 52 operates. This is a priority display lamp that indicates that the operation of the up / down switch 52 is prioritized in setting the hot water supply temperature.

Reference numeral 57 denotes an automatic filling switch for instructing the controller 4 to perform automatic filling, and 58 denotes an automatic filling switch.
, A hot water setting switch for setting the amount of hot water at the time of automatic hot watering, and 60 a hot water for setting the boiling temperature of hot water in the bathtub 33 at the time of automatic hot watering and additional heating. Temperature setting switch 61 is hot water temperature setting switch 6
A bath temperature indicator that indicates the boiling temperature (bath temperature) set by 0, a combustion indicator lamp 62 that indicates that the bath burner 31 is in a combustion state, and a buzzer switch 63 that communicates from inside the bathroom 25 to the outside. is there.

Referring to FIG. 2B, the main remote controller 49 includes an operation switch 64 for instructing the controller 4 to operate, and an up / down switch 65 for setting the hot water supply temperature. In addition, 66 is a hot water temperature indicator for displaying hot water temperature, 67 is an automatic hot water switch for instructing the controller 4 to automatically feed hot water, 68 is a combustion indicator lamp indicating that the hot water burner 5 is in a combustion state, and 69 is a bath. The main remote controller 49 is selected by the temperature setting selection means 53 incorporated in the remote controller 48, and the up / down switch 64 is operable, indicating that the operation of the up / down switch 64 has priority in setting the hot water supply temperature. It is a priority display lamp.

Next, a general operation of the hot water supply apparatus 1 of the present embodiment will be described. The hot water supply apparatus 1 of the present embodiment includes a hot water supply operation for supplying hot water to the currants 29 and 30, an automatic hot water filling operation for automatically filling the bathtub 33, and a reheating operation for performing additional heating when there is hot water in the bathtub 33. It has three operation modes.

First, the hot water supply operation will be described. In the water heater 1 of the present embodiment, the user
By pressing any one of the operation switch 51 of the main remote controller 49 and the operation switch 64 of the main remote controller 49, the controller 4 is instructed to start the hot water supply operation, and the controller 4 is activated. The controller 4 displays the hot water temperature set by the up / down switch 52 on the hot water temperature indicators 54 and 66 of both the bath remote controller 48 and the main remote controller 49 when the pushed remote controller is the bath remote controller 48. At the same time, the up / down switch 52 is operable, and the priority display lamp 56 is turned on to indicate that the operation of the up / down switch 52 is prioritized in setting the hot water supply temperature. When the remote controller pressed is the main remote controller 49, the controller 4 displays the hot water temperature set by the up / down switch 65 on both hot water temperature indicators 5.
4, 66 and an up / down switch 6
4 is operable and the setting of hot water supply temperature is improved.
A priority indicator lamp 69 indicating that the operation of the down switch 64 is prioritized is turned on.

Next, when the controller 4 is in the operating state, if the user opens the callan 29 in the bathroom 25 or the callan 30 in the kitchen 27, water supply to the water supply pipe 7 is started, and the water flow sensor 10 is turned on. The water flow due to the water supply is detected, and a detection signal is sent to the controller 4. The controller 4 recognizes water supply from the water supply pipe 7 to the hot water supply heat exchanger 6 based on the detection signal of the water flow sensor 10, operates the hot water supply combustion fan 21, and operates the original gas solenoid valve 17, the hot water supply gas proportional valve 20, and the hot water supply gas electromagnetic valve. The valves 18 and 19 are opened, and a high voltage is applied to the igniter 23 to cause a spark discharge in the hot water supply spark plug 22 to perform the ignition processing of the hot water supply burner 5.

The controller 4 includes a hot water supply frame rod 24
When it is recognized that the hot water supply burner 5 is ignited by detecting the output of the hot water supply burner 5, the combustion display lamps 55 and 68 are turned on, and the detected temperature of the hot water supply temperature sensor 14 and
The opening degree of the hot water supply gas proportional valve 20, the rotation speed of the hot water supply combustion fan 21, the opening and closing of the hot water supply gas electromagnetic valves 18 and 19, the water volume servo so that the hot water temperature displayed on the hot water temperature indicators 54 and 66 match. The hot water supply control for adjusting the opening 8 and the opening of the bypass servo 13 is executed. As a result, hot water of the hot water supply temperature displayed on the hot water supply temperature indicators 54 and 66 is supplied from the karan 29 or the karan 30.

When the user again presses either the operation switch 51 of the bath remote controller 48 or the operation switch 64 of the main remote controller 49, the controller 4 is instructed to stop the hot water supply operation. The controller 4 stops the hot water supply operation unless the up / down switch 52 of the bath remote control 48 is operable, as described later, unless the operation switch 51 of the bath remote control 48 instructs the stop of the hot water supply operation. When instructed, the hot-water supply combustion fan 21 is stopped, the original gas solenoid valve 17, the hot-water supply gas proportional valve 20, and the hot-water supply gas solenoid valves 18, 19 are closed to extinguish the hot-water supply burner 5 and become a stopped state. Controller 4
Simultaneously stops the display of the hot water supply temperature on the hot water temperature indicators 54 and 66, and turns off the combustion display lamps 55 and 68 and the priority display lamps 56 and 69.

Next, the automatic filling operation and the reheating operation will be described. In the hot water supply apparatus 1 of this embodiment, when the user presses either the operation switch 51 of the bath remote controller 48 or the operation switch 64 of the main remote controller 49, the controller 4 is instructed to start the hot water supply operation, and the controller 4 Is turned on, and various displays and lamps are turned on in the same manner as in the hot water supply operation.

Next, when the user presses either the automatic hot water switch 57 of the bath remote control 48 or the automatic hot water switch 67 of the main remote control 49 while the controller 4 is in the operating state, the controller 4 starts the automatic hot water filling operation.

In the automatic filling operation, the controller 4
First, the pouring solenoid valve 43 is opened. By opening the pouring electromagnetic valve 43, water supply to the water supply pipe 7 is started, and in the hot water supply operation, the hot water supply burner 5 is ignited and the hot water supply pipe is ignited by the same procedure as when the user opens the currans 29, 30. From 11, the hot water supply at the hot water supply temperature is started via the hot water supply electromagnetic valve 43, the bath hot water supply pipe 44, the three-way valve 45, and the circulation path 43.

The controller 4 calculates the accumulated value of the amount of hot water supplied to the bathtub 33 based on the output from the flow rate sensor 46, and when the accumulated value reaches the amount of hot water set by the hot water amount switch 59, the molten metal is poured. The electromagnetic valve 43 is closed, and the hot water supply burner 5 is extinguished in the same procedure as when the stop of the hot water supply operation is instructed in the hot water supply operation, and the filling of the bathtub 33 is completed.

After completion of filling the bathtub 33, the controller 4 detects the temperature of the hot water in the bathtub 33 based on the output of the bath temperature sensor 36. If the detected temperature is lower than the boiling temperature, additional heating is performed. The operation is performed to raise the temperature of the hot water in the bathtub 33 to the boiling temperature.

In the additional heating operation, the controller 4
The bath pump 35 is operated to supply hot water in the bathtub 33 to the circulation path 3.
4, the bath combustion fan 40 is operated, the original gas solenoid valve 17 and the bath gas solenoid valve 38 are opened, and a high voltage is applied to the bath ignition plug 41 via the igniter 23 to cause spark discharge. And the ignition process of the bath burner 31 is performed.

The controller 4 has a bath frame rod 42
When it is recognized that the bath burner 31 has been ignited by detecting the output of the bath burner 31, the combustion indicator lamp 62 is turned on and the bath burner 31 is turned on until the detected temperature of the bath temperature sensor 36 reaches the boiling temperature. Continue burning. Thereby, the temperature of the hot water in the bathtub 33 is raised to the boiling temperature. The controller 4 includes a bath temperature sensor 36
When it is detected that the temperature of the hot water in the bathtub 33 has reached the boiling temperature, the bath combustion fan 40 is stopped, and the original gas solenoid valve 17, the bath gas proportional valve 39, and the bath gas solenoid valve 38 are turned on. The valve is closed to extinguish the bath burner 31, and the combustion indicator lamp 62 is turned off.

After the temperature of the hot water in the bathtub 33 reaches the boiling temperature, the controller 4 changes the temperature of the hot water in the bathtub 33 to approximately the boiling temperature for a predetermined time (for example, 4 hours). In order to keep the temperature of the bath, the bath burner 31 is intermittently burned to perform a bath warming operation. When the bath burner 31 is burning, the combustion indicator lamp 62 is turned on.

After the lapse of the predetermined time, the controller 4 stops the bath combustion fan 40 and turns off the original gas solenoid valve 1.
7. The bath gas proportional valve 39 and the bath gas solenoid valve 38 are closed to extinguish the bath burner 31, and at the same time, the combustion indicator lamp 62 is turned off to be in a stopped state.

When the user presses the reheating switch 58 of the bath remote controller 48 while the controller 4 is in the operating state, the controller 4
7, the water level of the hot water in the bathtub 33 is detected. Then, when it is recognized from the output of the water level sensor 47 that the bathtub 33 has already been filled with hot water, the controller 4 starts the additional heating operation.

Next, when the controller 4 detects that the temperature of the hot water in the bathtub 33 has reached the boiling temperature based on the temperature detected by the bath temperature sensor 36, the bath combustion fan 4
0, the original gas solenoid valve 17, the bath gas proportional valve 39,
The bath gas solenoid valve 38 is closed to extinguish the bath burner 31, and at the same time, the combustion indicator lamp 62 is turned off to be in a stopped state.

Next, the operation of setting the hot water supply temperature in hot water supply apparatus 1 of the present embodiment will be described with reference to FIG.

First, when the controller 4 is stopped in the hot water supply operation (STEP 1), the operation switch 51 of the bath remote controller 48 or the operation switch 64 of the main remote controller 49 is in a state of waiting for a pressing operation. When the operation switch 51 of the remote controller 48 is pressed (STEP 2), the controller 4 is activated,
When the curan 29 or the curan 30 is opened in this state, the hot water supply operation is started as described above (STEP 3). At this time, since the hot water supply operation is started by pressing the operation switch 51 of the bath remote control 48, the up / down switch 52 of the bath remote control 48 can be operated by the temperature setting selecting means 53, and the bath remote control is set with respect to the setting of the hot water supply temperature. Forty-eight up / down switches 52 are prioritized (STEP 4).

Next, before the operation switch 51 of the bath remote controller 48 is depressed in STEP 5,
When the operation switch 64 of the main remote controller 49 is pressed in 6, the controller 4 stops the hot water supply operation (STEP 7) and returns to the state of waiting for the operation of the operation switch 51 or the operation switch 64 (STEP 2). In step 6, the operation switch 6 of the main remote controller 49 is set.
When the push operation of No. 4 is not performed, the operations of STEPs 4 to 6 are repeated, and the hot water supply operation is continued in a state where the up / down switch 52 of the bath remote controller 49 has priority over the setting of the hot water supply temperature.

Next, when the operation switch 51 of the bath remote controller 48 is not pressed in the state of waiting for the operation of the operation switch 51 or the operation switch 64 (STEP 2),
When the operation switch 64 of the main remote controller 49 is pressed (STEP 8), the controller 4 is activated.
When the curan 29 or the curan 30 is opened in this state, the hot water supply operation is started as described above (STEP 9). At this time, the hot water supply operation is started by pressing the operation switch 64 of the main remote controller 49, so that the up / down switch 65 of the main remote controller 49 can be operated by the temperature setting selection means 53, and the main remote controller 49 can set the hot water supply temperature. The 49 up / down switch 65 is set to a priority state (STEP 10).

Next, when the operation switch 51 of the bath remote controller 48 is pressed in STEP 11, the controller 4 stops the hot water supply operation (STEP 7), and waits for the operation switch 51 or the operation switch 64 to be pressed (STEP 7). ST
Return to EP2). Also, in STEP 11, the operation switch 51 of the bath remote controller 48 is not pressed, and the STE
Also when the operation switch 64 of the main remote controller 49 is pressed at P12, the controller 4 stops the hot water supply operation (STEP 7) and returns to a state of waiting for the operation of the operation switch 51 or the operation switch 64 (STEP 2). I do.

Next, in step 11, the operation switch 51 of the bath remote controller 48 is not pressed, and
When the operation switch 64 of the main remote controller 49 is not pressed even at 12, the bath remote controller 48
It is determined whether the down switch 52 has been operated (STE
P13). Then, when the up / down switch 52 is not operated in STEP 13, STEPs 10 to 13 are executed.
Is repeated, and the hot water supply operation is continued in a state where the up / down switch 65 of the main remote controller 49 has priority over the setting of the hot water supply temperature.

Next, when the up / down switch 52 of the bath remote controller 48 is prioritized in setting the hot water supply temperature and the hot water supply operation is continued (STEP 4 to STEP 4).
6), when the operation switch 51 of the bath remote controller 48 is pressed in STEP 5, the temperature setting selection means 53 determines that the user does not need hot water in the bathroom 25, and sets the main hot water temperature. The up / down switch 65 of the remote controller 49 is set in a priority state (STEP 10). Then, the operations of STEPS 10 to 13 are repeated, and the hot water supply operation is continued in a state where the up / down switch 65 of the main remote controller 49 has priority over the setting of the hot water supply temperature.

Next, when the hot water supply operation is continued with the up / down switch 65 of the main remote controller 49 being prioritized in setting the hot water supply temperature (STEP 1).
When the up / down switch 52 of the bath remote controller 48 is operated in step 13), the temperature setting selection means 53 determines that the user needs hot water in the bathroom 25, and sets the hot water temperature. In this case, the up / down switch 52 of the bath remote controller 48 is given priority (STEP 4). Then, the operations of STEPs 4 to 6 are repeated, and the hot water supply operation is continued in a state where the up / down switch 52 of the bath remote controller 48 has priority over the setting of the hot water supply temperature.

When the hot water supply operation is continued with the up / down switch 52 of the bath remote controller 48 giving priority to the setting of the hot water supply temperature (STEP 4 to STEP 4).
In 6), when the operation switch 51 of the bath remote controller 48 is pressed in STEP 5, the user may actually try to stop the hot water supply operation. At this time, after the up / down switch 65 of the main remote controller 49 is set to a state of giving priority to the setting of the hot water supply temperature by the temperature setting selection means 53, the operation switch 51 of the bath remote controller 48 is pressed in STEP11 or
When the operation switch 64 of the main remote controller 49 is pressed at P12, the hot water supply operation is stopped at STEP7.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram showing an example of a hot water supply device of the present invention.

FIG. 2 is an external view of a remote controller provided in the water heater shown in FIG.

FIG. 3 is a flowchart showing the operation of the hot water supply apparatus shown in FIG. 1;

[Explanation of symbols]

1 hot water supply device 4 hot water supply control means 5 heating means
6 ... heat exchanger, 25 ... bathroom, 26 ... first hot water supply pipe, 27 ... other hot water supply place, 28 ... second hot water supply pipe,
48: first remote controller, 49: second remote controller, 5
1, 64: operation switch, 52, 65: temperature setting means, 53: temperature setting selection means.

Claims (1)

[Claims] 1. A heat exchanger for obtaining hot water by heating supplied water by a heating means, a first hot water supply pipe for supplying hot water obtained by the heat exchanger to a bathroom, A second hot water supply pipe for supplying the obtained hot water to another hot water supply location, a hot water supply control means for controlling a hot water supply operation by the heating means, an operation switch provided in the bathroom and instructing the hot water supply control means to operate, and a hot water supply A first remote controller including a temperature setting means for setting a temperature;
A second remote control provided at another hot water supply location and provided with an operation switch for instructing the hot water supply control means to operate and a temperature setting means for setting a hot water supply temperature; and one of the remote controls provided on the first remote control A hot water supply apparatus comprising: a temperature setting selecting means for selecting and operating the temperature setting means, wherein the temperature setting selecting means is operated by an operation switch of the first remote control when the temperature setting means of the first remote control is operable. When the hot water supply control means is instructed to stop the operation, the temperature setting means of the second remote control is made operable while maintaining the operation state of the hot water supply control means, and the temperature setting means of the second remote control is operable. Wherein the temperature setting means of the first remote control is operable when the temperature setting means of the first remote control is operated.