JP7105030B2 - Storage hot water heater - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hot water storage type water heater that performs boiling operation using electric power generated by solar power generation.

Conventionally, in this type of hot water storage type water heater, as described in Patent Document 1, HEMS (=Home Energy Management System) equipment performs power management, and solar power generation is performed when the sunshine conditions according to weather forecast information are favorable. There is a hot water storage type water heater that uses the electric power generated by controlling the device to heat the hot water in the hot water storage tank.

JP 2018-115826 A

In recent years, a technique has been proposed that enables even storage-type water heaters that are not equipped with the HEMS device to perform the same heating operation using sunlight as in the conventional technology. In other words, after the user himself or herself judges whether the sunshine conditions are good or bad based on the weather forecast or the like, for example, the user manually determines whether or not to execute the solar heating operation for the next day. When to do it, etc. are set.

In the case of the above method, the user must be aware that when the operation date (execution date) on which the solar heating operation is to be performed is approaching, the setting is such that the solar heating operation is actually performed. It would be convenient if it could be confirmed in some way.
In addition, after the user has set the execution of the solar heating operation as described above, for example, the weather forecast for the operation day has changed to worse weather than at the beginning. may be better for the user to review again. If the solar power heating operation is performed on the operating day in the bad weather, the amount of power generated by the solar power generation device will be almost zero, and as a result, the heating operation will be performed using the expensive daytime power. There is a possibility that it will become. Therefore, from this point of view as well, it would be convenient if the user could reconsider in advance without forgetting whether or not it is permissible to perform the solar heating operation on the operating day.
However, there has not existed a technique that considers the above points.

In order to solve the above-mentioned problems, according to claim 1 of the present invention, a hot water storage tank for storing hot water, heating means for heating the hot water, and display means for displaying a desired display are provided, and the heating means is the hot water storage tank. In a storage-type water heater that performs boiling operation to heat hot water inside, on a specific date, during the daytime except for the specified nighttime, solar power generation equipment is used to perform heating operation using solar power. and execution setting receiving means for receiving the setting of; and controlling the heating means so as to perform the solar heating operation on the specific date according to the execution setting received by the execution setting receiving means. After the execution setting in the heating control means and the execution setting receiving means, the execution setting is changed at a predetermined timing before the solar light heating operation is executed on the specific date according to the execution setting. confirmation display control means for controlling the display means so as to perform confirmation display prompting reconfirmation.

Further, in claim 2, the predetermined timing is a timing after a first predetermined time on the day before the day of operation on which the solar heating operation is to be performed.

Further, in claim 3, the predetermined timing is a timing after the first predetermined time and before the start time of the nighttime zone on the day before the operation day.

Further, in claim 4, the predetermined timing is a timing after the first predetermined time and at which an appropriate operation related to the hot water storage type hot water heater is performed.

Further, in claim 5, setting display control means for controlling the display means so as to display a predetermined setting screen different from the standby screen displayed in the standby state; transition display control means for controlling the display means so as to transition to the setting screen by an appropriate operation, wherein the execution setting reception means causes the display means to be displayed under the control of the setting display control means; In a state where the setting screen is displayed, the setting for the execution of the solar heating operation is accepted.

According to claim 1 of the present invention, the heating means can be controlled by the heating control means, so that the solar power heating operation using the electric power from the solar power generation device can be performed. For this purpose, an execution setting receiving means is provided. When the user sets execution of the solar heating operation on a specific date, the setting result is received by the execution setting receiving means.

According to claim 1, a confirmation display prompting reconfirmation of the execution setting is performed on the display means under the control of the confirmation display control means at a predetermined timing before the solar heating operation is executed. . As a result, the user can recognize again that the heating operation using solar light is set to be executed on the operating day, and whether or not the heating operation using solar light can be executed as it is on the operating day. Don't forget to reconsider whether. In addition, it is possible to prevent unnecessary boiling-up operation during bad weather as described above, thereby improving convenience for the user.

Also, if the timing of the reconsideration by the user is much earlier than the execution of the solar heating operation, there is a concern that the contents of the weather forecast for the operation day may change after the setting due to the reconsideration. Therefore, it is desirable that the timing of the reexamination should be immediately before the solar heating operation. According to claim 2, the above concerns can be dispelled by setting the predetermined timing to the timing of transition to the first predetermined time (for example, 17:00) on the day before the operation day.

Usually, the nighttime period starts late at midnight on a certain date, changes to the date of the next day at midnight, and continues until the early morning of the next day (for example, it is determined by the contents of the contract with the electric power company). Then, depending on whether or not the heating operation using sunlight is to be performed on the next day, the mode of the heating operation in the nighttime will change (if the heating operation using sunlight is to be performed on the next day, (This is for subtracting the amount of hot water expected to be boiled in the solar heating operation from the amount of hot water to be boiled in the heating operation performed during the night). Therefore, it is preferable to change the execution/non-execution of the solar heating operation by the start time (for example, 23:00) of the nighttime zone on the day before the operation day. According to claim 3, by performing the confirmation display until before the start time of the nighttime period on the day before the operation day, when there is a change of execution/non-execution, the boiling of the nighttime period is possible. It can be surely reflected in the mode.

In addition, according to claim 4, when the user performs some operation, the confirmation display is performed at that timing, so that the user can surely recognize that the setting is to execute the solar light heating operation, and the solar light use can be performed. It is possible to reliably reconsider whether or not the boiling-up operation can be performed.
For example, when the hot water filling operation is performed with the remote control device, the user is facing the display means of the remote control device and is surely looking at the display means. Therefore, for example, by performing the confirmation display at the timing of the hot water filling operation, it is possible to more reliably recognize that the setting is to execute the heating operation using the sunlight, and the heating operation using the sunlight can be executed. It is possible to further reliably reconsider whether or not
Further, for example, when hot water is poured out, the display means of the remote control device normally displays some kind of display accompanying the hot water pouring operation (temperature display, lighting display of a mark in the shape of a flame, etc.). likely to be seen. According to claim 6, by performing the confirmation display at the timing of the hot water supply operation, it is possible to more reliably recognize that the setting is to perform the heating operation using the sunlight, and the heating operation using the sunlight is performed. It is possible to reconsider whether or not it is acceptable to do so more reliably.

Further, according to claim 5, a setting screen different from the standby screen normally displayed on the display means is displayed, and the user can use the setting screen to display the solar heating operation on a specific date (operating day). can be set to run. Further, when the user who has reviewed the confirmation display wants to change the setting of the execution of the solar heating operation on the operation day, the setting screen can be easily displayed by performing an appropriate operation. to change the settings.

FIG. 1 is a system configuration diagram of a storage-type hot water supply system linked to a photovoltaic power generation device according to a first embodiment of the present invention. A graphical representation conceptually showing the temporal behavior of the amount of power generated by photovoltaic power generation and the amount of power consumed by electrical load equipment when the weather is forecast to be sunny. A graphical representation conceptually showing the temporal behavior of the amount of power generated by photovoltaic power generation and the amount of power consumed by electrical load equipment when the weather is forecast to be rainy or cloudy. Functional block diagram showing the functional configuration of the control device External view showing the detailed configuration of the remote control device Flowchart diagram showing the first half of the control procedure executed by the control device Flowchart diagram showing the second half of the control procedure executed by the control device Flowchart diagram showing the detailed procedure of step S200 Flowchart diagram showing the detailed procedure of step S300 FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; Date display on the date display section provided on the setting screen of the remote control device, availability of date setting for setting execution/non-execution of heating operation using sunlight, availability of cancellation of date setting, start time of heating operation using sunlight A timetable diagram explaining an example of whether or not the setting can be changed, and the transition of FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; A timetable diagram showing changes in the excessive boiling warning mark, the date display section, the time display section, and the message display displayed on the standby screen of the remote control device. FIG. 11 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device according to the second embodiment of the present invention; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; FIG. 4 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device; Final date display on the date display section provided on the setting screen of the remote control device, availability of date setting for setting execution/non-execution of heating operation using sunlight, availability of cancellation of date setting, start of heating operation using sunlight A timetable diagram explaining an example of transitions between whether or not the time setting can be changed FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; FIG. 4 is a diagram showing a display example of a standby screen provided on a screen display unit of a remote control device; A timetable diagram showing changes in the excessive boiling warning mark, the date display section, the time display section, and the message display displayed on the standby screen of the remote control device. FIG. 11 is a diagram showing a display example of a setting screen provided on the screen display unit of the remote control device according to the third embodiment of the present invention; A timetable diagram showing changes in the excessive boiling warning mark, the date display section, the time display section, and the message display displayed on the standby screen of the remote control device. A timetable diagram showing changes in the excessive boiling warning mark, the date display section, the time display section, and the message display displayed on the standby screen of the remote control device.

Next, embodiments of the present invention will be described with reference to FIGS. 1 to 35. FIG.

A first embodiment of the present invention will be described with reference to FIGS. 1 to 21. FIG.

<Overview of system configuration>
FIG. 1 shows the system configuration of a hot water supply system provided with the hot water storage type hot water heater of this embodiment. In FIG. 1, part of the signal transmission/reception, which will be described later, is omitted in order to prevent the illustration from becoming complicated. In FIG. 1, the hot water supply system 100 of the present embodiment includes a heat pump type hot water storage type hot water heater 1 installed in a building (specific power consumption equipment) such as a house (not shown), and a power distribution system connected to a commercial power supply 49. A photovoltaic power generation device 3 comprising a panel 2, a photovoltaic panel 4 installed on the roof of the house, etc., and an inverter 5 for converting the power generated by the photovoltaic panel 4 into AC power, and the hot water storage type It has an electrical load device 6 (simply indicated as "air conditioner" in FIG. 1), which constitutes other loads other than the hot water heater 1, such as an air conditioner, a network communication network 8, and a server 9. Incidentally, the network communication network 8 and the server 9 may be omitted. In that case, the display of the network display unit 65 in the remote control device 50, which will be described later, is also omitted (see FIG. 5, etc., described later).

The hot water storage type water heater 1 includes a remote control device 50, a hot water storage tank 10 for storing hot water, a water supply pipe 11 for supplying water to the bottom of the hot water storage tank 10, and a hot water outlet pipe 12 for discharging hot water from the top of the hot water storage tank 10. A water supply bypass pipe 13 branched from the water supply pipe 11, and a mixing valve for mixing hot water from the hot water outlet pipe 12 and water from the water supply bypass pipe 13 so that the hot water supply set temperature set by the remote control device 50 is obtained. 14, hot water taps 94 provided in kitchens and washrooms, hot water supply pipes 15 for supplying hot water to bathtubs and hot water supply terminals (not shown), and hot water supply flow rate sensors 16 for detecting the flow rate of hot water supply and outputting corresponding detection signals. , a hot water supply temperature sensor 17 for detecting the hot water supply temperature and outputting a corresponding detection signal, and a hot water storage temperature sensor 18 for detecting the hot water temperature of the hot water in the hot water storage tank 10 and outputting a corresponding detection signal. . A plurality of the hot water storage temperature sensors 18 are provided on the side surface of the hot water storage tank 10 at different height positions. When each of the plurality of stored hot water temperature sensors 18 detects, for example, a hot water temperature equal to or higher than a predetermined threshold set in advance corresponding to the temperature of sufficiently heated hot water, a corresponding detection signal is generated. to the control device 31 . As a result, the control device 31 is in a state in which the inside of the hot water storage tank 10 is sufficiently heated based on how many of the plurality of stored hot water temperature sensors 18 output the detection signals. The amount of hot water (that is, the amount of hot water stored) can be detected.

Further, the hot water storage type water heater 1 further includes a heat pump device 19 (corresponding to heating means) for heating the hot water in the hot water storage tank 10 to a boiling target temperature. The heat pump device 19 includes a compressor 20 that compresses and conveys a high-temperature, high-pressure refrigerant, a water-refrigerant heat exchanger 21 that exchanges heat between the high-temperature, high-pressure refrigerant and water from the hot water storage tank 10, and the water refrigerant. An expansion valve 22 that decompresses and expands the refrigerant after heat exchange in the heat exchanger 21, an air heat exchanger 23 that exchanges heat between the outside air and the low-pressure refrigerant and evaporates the low-pressure refrigerant, and the outside air to the air heat exchanger 23. A blower 24 that blows air, a discharge temperature sensor 25 that detects the temperature of the refrigerant discharged from the compressor 20 and outputs a corresponding detection signal to the control device 31, and a detection signal that detects the outside air temperature and outputs a corresponding detection signal. and an outside air temperature sensor 30 that outputs to the control device 31 .

Further, the hot water storage type hot water heater 1 further connects the control device 31 for controlling the operation of the hot water storage type hot water heater 1 as a whole, the lower portion of the hot water storage tank 10 and the water side inlet of the water refrigerant heat exchanger 21. a heating return pipe 26, a heating return pipe 27 connecting the water side outlet of the water-refrigerant heat exchanger 21 and the upper part of the hot water storage tank 10, a heating circulation pump 28 provided in the middle of the heating return pipe 26, A boiling temperature sensor 29 is provided on the heating return pipe 27 and outputs a detection signal to the control device 31 . A heating circulation circuit is constituted by the heating feed pipe 26, the heating return pipe 27, and the heating circulation pump 28 (hereinafter simply referred to as "heating circulation circuits 26, 27, 28").

<Solar heating operation>
In the hot water supply system 100 configured as described above, when the sunshine conditions are favorable, the photovoltaic power generation device 3 can generate power by receiving sunlight with the photovoltaic power generation panel 4 . The storage-type water heater 1 uses the power generated by the photovoltaic power generation device 3 according to various settings manually made by the user (details will be described later), and the heat pump device 19 heats the heating circulation circuits 26 and 27 using the power generated by the photovoltaic power generation device 3 . , 28 to heat the hot water in the hot water storage tank 10 for boiling. Conversely, when the sunshine conditions are not very favorable, the solar power generation device 3 cannot sufficiently generate power by receiving sunlight, so the hot water storage type hot water heater 1 receives the electric power supplied from the commercial power source 49. is used to perform the boiling-up operation.

In order to perform the boiling operation using power generated by photovoltaic power generation as described above, at least the generated power value must be large to some extent (more specifically, the power value supplied to the hot water storage type water heater 1, that is, the generated power value The surplus electric power value obtained by subtracting the load use electric power value consumed by the electric load devices 6 excluding the hot water storage type hot water heater 1 from the surplus electric power value is somewhat large (described later). This will be explained with reference to FIGS. 2 and 3. FIG.

<Example of power behavior>
2. In FIG. 2, the horizontal axis represents time such as "0:00", "1:00", ..., "23:00", "24:00", and the vertical axis represents power consumption. Represents the amount of power generated by the photovoltaic power generation device 3, the power used by the load consumed by the electrical load device 6, and the power consumption per unit time of the storage-type water heater 1, when the amount [kWh] is taken. 10A and 10B are graphs conceptually showing an example of the behavior of power used by the device.

As shown in FIG. 2, this example is an example when the weather is fine. That is, as shown by the solid line graph in the drawing, the amount of power generated by the solar power generation device 3 changes at approximately 0 [kWh] from 0:00 to 6:00, but at sunrise (6:00 to 6:00) 0.2 [kWh] at 7:00, 1.0 [kWh] at 8:00, 1.5 [kWh] at 8:30, and then 9:00 1.8 [kWh] at 00, 2.5 [kWh] at 10:00, 3.2 [kWh] at 11:00, and peaks at 3.3 [kWh] at 12:00. After that, the amount of power generated by the photovoltaic power generation device 3 gradually decreases as the sun gets darker, reaching 3.2 [kWh] at 13:00, 2.5 [kWh] at 14:00, and then at 15:00. 1.8 [kWh] at 15:30, 1.5 [kWh] at 16:00, 1.0 [kWh] at 16:00, 0.2 [kWh] at 17:00, sunset (17:00- 18:00), after 18:00 it is almost 0 [kWh] until 24:00.

On the other hand, as indicated by the gray bar graph in the figure, the load power consumption of the electrical load device 6 is 0.5 [kWh] all day from 0:00 to 24:00. As a result, as shown in FIG. 2, the value of the surplus power represented by "the amount of power generated by the photovoltaic power generation device 3" - "the amount of power used by the load of the electric load device 6" is 0 for the first time at 8:00. .5 [kWh] is generated, 1.0 [kWh] at 8:30, 1.3 [kWh] at 9:00, 2.0 [kWh] at 10:00, 2.7 [kWh] at 11:00 kWh] and peaks at 2.8 [kWh] at 12:00. After that, it gradually decreases to 2.7 [kWh] at 13:00, 2.0 [kWh] at 14:00, 1.3 [kWh] at 15:00, and 1.0 [kWh] at 15:30. , 0.5 [kWh] at 16:00.

In this example, the electric power used by the apparatus when the hot water storage type hot water heater 1 is operated is 1 [kWh] per unit time with respect to the time fluctuation of the surplus electric power as described above. As a result, if the user can recognize the above behavior from a known information source such as the weather forecast and weather information for the next day, for example, "surplus power"≧"power consumption of the hot water heater 1" ” (hereinafter referred to as “boiling possible time zone”), it is determined that the storage-type hot water heater 1 can be operated with the surplus electric power. can be done. In FIG. 2, as a result of the user's determination, the boiling operation of the storage-type water heater 1 is set to 11:00 to 13:00 (hereinafter referred to as "boiling (refer to the black bar graph).

<Another example of power behavior>
Note that the example shown in FIG. 2 is an example in which the weather is fine as described above (as a result, power generation by the solar power generation is possible). On the other hand, FIG. 3 shows an example in which the weather is rainy, cloudy, or the like (almost no solar radiation). In this case, as indicated by the solid line graph in the figure, the amount of power generated by the photovoltaic power generation device 3 changes at approximately 0 [kWh] from 0:00 to 8:00, and rises slightly with sunrise. However, after 0.1 [kWh] at 9:00, 0.3 [kWh] at 10:00, 0.5 [kWh] at 11:00, and 0.6 [kWh] at 12:00 Even the peak at 13:00 of this time stays at about 0.7 [kWh]. After that, the amount of power generated by the photovoltaic power generation device 3 is 0.6 [kWh] at 14:00, 0.5 [kWh] at 15:00, 0.3 [kWh] at 16:00, and 0.3 [kWh] at 17:00. is 0.1 [kWh] at 18:00, and remains almost 0 [kWh] until 24:00 after 18:00. As a result, as shown in FIG. 00, and the maximum value remains at about 0.2 [kWh]. In such a case, the user can determine that the boiling operation of the storage-type water heater 1 using the surplus power is impossible. In FIG. 3, as a result of the user's determination, the storage-type water heater 1 does not use power generated by solar power, but power is supplied from the commercial power supply 49, and the power rate unit price is low during the nighttime period as usual. (23:00 to 7:00 in this example) during an appropriate time period (3:00 to 7:00 in this example), the boiling operation is performed (hereinafter simply referred to as “nighttime boiling”). (see black bar graph; details below).

<Functional configuration>
In this embodiment, the controller 31 is provided with functional units shown in FIG. That is, as shown in FIG. 4, the control device 31 includes a surplus boiling-up execution unit 33A, a surplus boiling-up setting unit 33C, a surplus boiling-up control unit 40, a surplus boiling-up capacity determination unit 37, a use A hot water amount learning unit 34, a required heat amount determining unit 35, a nighttime boiling capacity calculating unit 36, a corrected nighttime boiling capacity calculating unit 38, a nighttime boiling control unit 39, and a daytime boiling increase control unit 42 are provided. ing. Details of each of these functional units will be described in detail later in order.

The control device 31 also includes a display control section 33B. The user can access known weather information (for example, weather forecast information, sunshine hours information, etc., hereinafter simply referred to as "weather information") that is acquired from the server 9 and displayed on the remote control device 50 under the control of the display control unit 33B, for example. Alternatively, the user checks known weather information displayed on an information terminal (not shown) such as a smart phone or television outside the hot water supply system. Then, based on the weather information, on a specific target date (it may be for only one day, or it may be for a number of consecutive or scattered days). It is determined whether or not the operation (hereinafter referred to as “heating operation using solar light” as appropriate) can be performed. In this embodiment, an example will be described below in which the user determines whether or not to perform the solar heating operation for a plurality of consecutive days (hereinafter referred to as a continuous period). Note that this continuous period is, for example, the day after the desired date when the execution of the control procedure according to the flow shown in FIGS. In this example, it is a total of two days including the next day and the day after next.

That is, for example, the user himself/herself estimates the behavior of the amount of generated power based on the weather information, and what kind of magnitude relationship the power used by the load has with respect to the estimated amount of generated power, and as a result, the surplus Self-estimate what the time variation of the power will be. Then, the user further estimates the magnitude relationship of the power consumption of the device with respect to the estimated amount of surplus power, and if the surplus power is sufficiently large relative to the power consumption of the device, the solar heating system is used. It is determined that the heating operation can be performed, otherwise it is determined that the solar heating operation cannot be performed, and various corresponding settings are manually performed using the remote controller 50 (details will be described later). It is up to the user to determine whether or not such determinations are made sequentially. Settings may be made.

<Remote control device>
A detailed configuration of the remote controller 50 is shown in FIG. In FIG. 5, a remote control device 50 includes a screen display unit 60 (corresponding to display means) and automatically fills hot water from the hot water storage tank 10 into the bathtub through the hot water supply pipe 15 and keeps hot water warm after filling. A "bath automatic" switch 71 for making a call in the bathroom, a "call" switch 72 for making a call with the bathroom, a speaker 73, and operation settings on the + side and - side of various numerical values such as the hot water supply temperature and the above A cross key 74 for moving the cursor in the screen display unit 60 upward, leftward, downward, and sideways, and a "menu/enter" switch 75 are manually operated to perform the boiling operation and A "tank hot water addition" switch 76 for increasing the amount of hot water stored in the hot water storage tank 10 by a predetermined amount, and a daytime boiling increase amount when the amount of hot water stored in the hot water storage tank 10 decreases below the predetermined threshold value. A "hot water addition pause" switch 77 that manually suspends the automatic hot water addition function (only on the day of operation), and a plurality of operation modes prepared in advance such as "eco operation" (detailed explanation is (omitted)) for displaying various guides on the screen display unit 60, and an "eco guide" switch 78 for returning the display screen displayed on the screen display unit 60 to the previous display screen. BACK" switch 79;

The screen display unit 60 is configured to be able to switch between a plurality of display screens, each of which displays predetermined content. The illustrated screen 60A is displayed in the standby state (hereinafter simply referred to as "standby screen 60A"). This standby screen 60A includes a date and time display section 61 that displays the current date and time (in this example, 22:30 on Friday, May 31st), and a set temperature of hot water in the bathtub (40°C in this example). a hot water supply temperature display unit 63 that displays the set hot water supply temperature (40° C. in this example); a hot water storage amount display unit 64 that displays the amount of hot water stored in the hot water storage tank 10; A network display unit 65 that indicates that the server 9 is connected via the network communication network 8, and a display that indicates which one of the plurality of operation modes (in this example, "automatic energy saving" operation. Details will be described later.) ).

The stored hot water amount display unit 64 displays the stored hot water amount in the hot water storage tank 10 in accordance with the detection result of the stored hot water temperature sensor 18 under the control of the display control unit 33B. In the illustrated example, the stored hot water amount display unit 64 is capable of displaying the stored hot water amount in five stages by five display elements 64A to 64C. That is, when almost all of the hot water storage tank 10 is the sufficiently heated hot water (the amount of stored hot water is full), all the display elements 64A, 64B, 64C, 64D, 64E is illuminated. Conversely, when the amount of hot water stored in the hot water storage tank 10 is almost empty, all the display elements 64A, 64B, 64C, 64D, and 64E are extinguished. , the display element 64B, the display element 64C, the display element 64D, and the display element 64E are additionally lit in this order from the display element 64A in the lower stage. The illustrated example shows a state in which the amount of hot water stored is about 1/5 of the total capacity in the hot water storage tank 10, and only the lowest display element 64A among the display elements 64A to 64E is illuminated. At the same time, the remaining four display elements 64B, 64C, 64D, 64E are extinguished (represented by dashed lines in the figure for clarity).

Here, in the example shown in FIG. 5, the amount of hot water stored in the hot water storage tank 10 is reduced to 1/1 of the full tank 10 due to the use of hot water for housework, bathing, etc. (see the time display of 22:30 in the date and time display section 61). 5 (only the lowermost display element 64A of the stored hot water amount display portion 64 lights up).

<Control flow>
As already described, in this embodiment, when the sunshine conditions are favorable, the power generated by the solar power generation device 3 can be used to perform the boiling-up operation during the boiling-up possible time zone ( See FIG. 2 above). When the sunshine conditions are not very good, the boiling operation is performed using the power supplied from the commercial power supply 49 during the nighttime period (23:00 to 7:00 in this example) when the unit price of electricity is low. (See FIG. 3 above). A control procedure executed by the control device 31 in order to realize this method will be described with reference to the flow charts of FIGS. As already mentioned, the day after the execution of this flowchart is started is simply called "the next day", and the day when the execution of this flowchart is started is hereinafter called "the day". called.

First, in FIG. 6, in step S2, the control device 31 initializes, to 0, a boiling-up impossible flag F representing a case where the sunlight-based boiling-up operation is impossible, for example, by the excess boiling-up execution unit 33A. .

Thereafter, in step S5, the control device 31 causes, for example, the surplus boiling-up execution unit 33A to operate the night time zone (23:00 on the day to 7:00 on the next day in this example) when the power rate unit price is low. (depending on the content) has reached the start time (23:00 in this example; the same shall apply hereinafter). The determination is not satisfied (S5: NO) until the nighttime zone start time comes, and the loop waits.

In step S25, the control device 31 calculates the required heat amount based on the learned hot water amount for each day of the past predetermined period which has been learned by the hot water amount learning unit 34 corresponding to the detection results of the hot water supply flow rate sensor 16 and the hot water supply temperature sensor 17. The determining unit 35 determines (calculates) the required amount of heat for the next day using a known technique using an average, standard deviation, or the like. Note that this required heat amount may be calculated as a required hot water amount converted to a predetermined temperature (for example, 43 [° C.]).

After that, in step S30, the control device 31 causes the necessary amount of hot water determined in step S25 to be predicted by a known method in correspondence with the required amount of hot water determined in step S25 and, for example, the detection result of the outside air temperature sensor 30. The boiling-up target temperature is determined from the next day's outside air temperature (or other conditions such as the feed water temperature). This boiling target temperature is set as low as possible, for example, between 65 [° C.] and 75 [° C.]. If it is low, it is set high (compared to other cases).

Then, in step S35, the control device 31 causes the nighttime boiling capacity calculation unit 36 to divide the required heat quantity determined in step S30 by the temperature difference between the boiling target temperature and the feed water temperature to obtain the required heat quantity. Convert to capacity, and use it as the nighttime boiling capacity when nighttime boiling is performed. If the required capacity calculated in this manner exceeds the capacity of the hot water storage tank 10, the capacity of the hot water storage tank 10 may be used as the nighttime boiling capacity. After that, the process moves to step S40.

In step S40, the control device 31 determines whether execution of the sunlight-based boiling-up operation is set (selected) by the user's operation via the remote control device 50 by the surplus boiling-up execution unit 33A (details are (described later) or not. If the execution has not been selected (non-execution has been selected), the determination is not satisfied (S40: NO), and the process proceeds to step S46, which will be described later. If the execution is selected, the determination is satisfied (S40: YES), and the process moves to step S42.

In step S42, the control device 31 causes the surplus boiling-up setting unit 33C to actually set (select) the sunlight-based boiling-up operation set (selected) by the user's operation via the remote control device 50 (details will be described later). (Here, as an example, 11:00 is set as an example). After that, the process moves to step S45.

In step S45, the control device 31 causes the excess boiling-up capacity determination unit 37 to set the storage-type water heater 1 to a predetermined heating capacity of the heat pump device 19 from the excess boiling-up start time determined in step S42. The size of the surplus boiling-up capacity for boiling up to the boiling-up target temperature is determined. In this example, this surplus boiling capacity is set to a fixed value (for example, 100 L), but may be set variably by the user through an appropriate operation. Moreover, a plurality of types of fixed values (for example, 100L, 50L, etc.) are prepared, and which fixed value to select and apply may be determined in advance before the start of the solar heating operation. The method may be set by an operation input by a user, a builder, etc., or automatically by a known method by the control device 31 at an appropriate timing based on the user's daily (or in a predetermined period) usage history. may be determined. In addition, while using such a fixed value as a base, the control device 31 appropriately corrects and corrects the base fixed value based on the situation, environment, etc. during or before the solar heating operation. You may do so. As an example of this correction, the excess boiling capacity may be set to zero (that is, the sunlight-based boiling operation during the daytime may be prohibited).
Then, the selection of the type of fixed value as described above, the presence or absence of correction, and the contents of correction may be individually set by the user using the remote control device 50 (or determined by the control device 31) for each date in the continuous period. . In this case, as described above, the date for which the surplus boiling-up capacity is zero may be specified as a season or a time zone (so-called peak cut) in which the power demand is extremely high, or an arbitrary date when the customer is absent due to travel or the like. It may be specified by the user.
It should be noted that setting the surplus boiling capacity to the fixed value as described above has the following technical significance. That is, in the case of a method in which the user variably sets, for example, the user predicts (determines) that the sunshine conditions of the next day will be very good, and the surplus boiling-up capacity due to the solar-powered boiling-up operation is considerably increased (for example, the hot water storage tank 10). In this case, due to the relatively large setting, the nighttime boiling capacity is extremely small during the night, so that most of the water in the hot water storage tank 10 becomes unheated water in the morning of the operation day when the sunlight-based boiling operation is performed. . As a result, for example, in the morning of the operation day (before the solar heating operation starts), there is a possibility that the amount of hot water stored in the hot water storage tank 10 may run short when it is desired to use hot water for temporary housework, bathing, showering, or the like. be. Alternatively, unlike the forecast, if the sunshine conditions on the operating day are not very good, the amount of heated water generated by the solar heating operation will be insufficient, and the operating day on which the most hot water will be consumed. After evening, there is a possibility that the amount of hot water stored in the hot water storage tank 10 will be insufficient in the same manner as described above.

On the other hand, as described above, for example, when the excess boiling capacity is set to a fixed value, the numerical value is set to a certain value (for example, 100 L or the like) as a limit value for the excess boiling capacity. The nighttime boiling capacity in the above can be at least the total capacity in the hot water storage tank 10 - 100 L (when the total capacity is 200 L, 200 - 100 = 100 L). As a result, unlike the above, it is possible to secure the minimum amount of hot water storage even in the morning of the operation day (before the solar heating operation starts), so that the adverse effects of the shortage of the amount of hot water storage can be avoided. be able to. Also, if this fixed value is too small, it will be wasteful from the viewpoint of effective utilization of power generation by sunlight. For example, by setting it to 100 L as described above, while maintaining a perfect balance between the nighttime boiling capacity in the nighttime zone and the surplus boiling capacity in the daytime zone, the effective use of the power generation by the solar power and the hot water storage amount. It is possible to achieve both avoidance of adverse effects due to shortage.

Then, in step S50, the control device 31 causes the corrected nighttime boiling capacity calculator 38 to subtract the surplus boiling capacity determined in step S45 from the nighttime boiling capacity calculated in step S35. , the corrected nighttime boiling capacity to be actually boiled in the nighttime zone is calculated. After that, the process moves to step S55, which will be described later.

On the other hand, in step S46, in which the determination in step S40 is not satisfied, the control device 31 causes the corrected nighttime boiling capacity calculation unit 38, for example, to set the boiling disabled flag F to the sunlight-based boiling operation. It is set to 1, which represents the case where it is impossible. After that, the process moves to step S55.

In step S55, the control device 31 controls the amount of hot water that can be regarded as hot water in a sufficiently heated state in the hot water storage tank 10 based on the detection results of the plurality of stored hot water temperature sensors 18 by the nighttime heating control unit 39. Calculate the capacity of hot water (residual hot water capacity).

After that, in step S60, the controller 31 causes the nighttime boiling control section 39 to calculate the start time of the nighttime boiling. That is, when the determination in step S40 is satisfied (S40: YES) and the process proceeds to step S60 through steps S42 to S50 and step S55, the night heating control unit 39 calculates in step S50 The boiling time required to boil the capacity obtained by subtracting the remaining hot water capacity calculated in step S55 from the corrected nighttime boiling capacity is calculated, and the boiling time is calculated at the end time of the nighttime zone (for example, 7:00). Calculate the nighttime boiling start time appropriate for completion (for example, by subtracting the required boiling time from the nighttime period end time).

On the other hand, if the determination in step S40 is not satisfied (S40: NO) and the process proceeds to step S60 through steps S46 and S55, the nighttime heating control unit 39 controls the nighttime temperature calculated in step S35. Calculate the boiling time required to boil the capacity obtained by subtracting the remaining hot water capacity calculated in step S55 from the boiling capacity, and complete the boiling at the end time of the nighttime zone (for example, 7:00). Appropriate (for example, by subtracting the required boiling-up time from the night-time end time) calculate the nighttime boiling-up start time.

Then, the process proceeds to step S62 in FIG. 7, and the control device 31 causes the nighttime boiling control section 39 to determine whether or not the time at this point (current time) has reached the nighttime boiling start time calculated in step S60. judge. If the nighttime boiling start time has not come, the determination is not satisfied (S62: NO), and the loop waits. move.

In step S<b>200 , the control device 31 performs the nighttime boiling process by the nighttime boiling control section 39 . A detailed procedure of this step S200 is shown in FIG.

In FIG. 8, first, in step S215, the control device 31 controls the heat pump device 19 (specifically, the compressor 20, the blower 24, the heating The circulation pump 28, etc.) is controlled to heat the water taken out from the lower part of the hot water storage tank 10 to the target boiling temperature determined in step S30, and the water is stacked sequentially from the upper part of the hot water storage tank 10. Start.

After that, in step S216, after the nighttime boiling operation is started by the nighttime boiling control unit 39, the control device 31 controls the corrected nighttime boiling capacity calculated in step S50 (or step If the determination in S40 is not satisfied, it is determined whether or not the stored hot water temperature sensor 18 has detected that the nighttime boiling capacity calculated in step S35 has been boiled. If the corrected nighttime boiling capacity (or nighttime boiling capacity) is not boiled, the determination is not satisfied (S216: NO), and the process proceeds to step S218.

In step S218, the control device 31 controls the heat pump device 19 by the nighttime boiling control section 39, and stops the nighttime boiling operation started in step S215. At this time, unheated water remains in the lower portion of the hot water storage tank 10 by the same amount as the surplus boiling-up capacity calculated in step S45 (if the determination in step S40 is satisfied). After that, returning to FIG. 7, the process moves to step S71.

In step S71, the control device 31 determines whether or not the boiling disabled flag F is 1, that is, whether or not non-execution of the solar water heating operation using the surplus power is selected. If F=1, the determination is satisfied (S71: YES), and the process moves to step S96, which will be described later. If F remains 0, the determination is not satisfied (S71: NO), and the process proceeds to step S72.

In step S72, the control device 31 determines whether or not the end time of the nighttime zone (7:00 in this example) has come. If the end time of the nighttime period has not come, the determination is not satisfied (S72: NO), and the loop waits.

In step S<b>300 , the control device 31 performs the surplus boiling process by the surplus boiling control section 40 . FIG. 9 shows the detailed procedure of this step S300.

In FIG. 9, first, in step S320, the control device 31 causes the excessive boiling-up control unit 40 to set the time (current time) at this time point to the start time of the sunlight-based boiling-up operation (surplus It is determined whether or not the boiling-up start time (11:00 in the above example) has come. Until the excessive boiling start time comes, the determination is not satisfied (S320: NO), and the loop waits. If the excessive boiling start time has come, the determination is satisfied (S320: YES), and the process proceeds to step S322.

In step S322, the control device 31 controls the heat pump device 19 (specifically, the compressor 20, the blower 24, the heating circulation pump 28, etc.) is controlled, and the water taken out from the lower part of the hot water storage tank 10 is heated to the boiling target temperature determined in step S30, and the hot water storage tank 10 is sequentially stacked from the upper part. driving).

After that, in step S324, the control device 31 causes the excess boiling-up control unit 40 to boil up the excess boiling-up capacity calculated in step S45 after the sunlight-based boiling-up operation is started as described above. It is determined whether or not the stored hot water temperature sensor 18 has detected that the hot water temperature has risen. If the surplus boiling-up capacity is boiled up, the determination is satisfied (S324: YES), and the process proceeds to step S326.

In step S326, the control device 31 controls the heat pump device 19 by the excess boiling control section 40 to stop the excess boiling operation started in step S322. Then, returning to FIG. 7, the process moves to step S96.

In step S96, the control device 31 causes the daytime boiling increase control unit 42 to set the current time (current time) to the end time (for example, 23:00) of the daytime zone (for example, 7:00 to 23:00). It is determined whether or not. If it is the end time of the daytime zone, the determination is satisfied (S96: YES), the process returns to step S2 shown in FIG. 6, and the same procedure is repeated. If the end time of the daytime zone has not come, the determination is not satisfied (S96: NO), and the process proceeds to step S92.

In step S92, the control device 31 determines whether or not the hot water temperature sensor 18 at the top of the hot water storage tank 10, for example, has decreased to a predetermined hot water shortage danger temperature or less by the daytime boiling increase control unit 42 or not. If the temperature is higher than the hot water shortage danger temperature, the determination in step S92 is not satisfied (S92: NO), and the process returns to step S96 to repeat the same procedure. If the temperature is equal to or lower than the danger temperature of running out of hot water, the determination in step S92 is satisfied (S92: YES), and it is considered that the hot water is running out, and the process proceeds to step S94.

In step S94, the control device 31 controls the heat pump device 19 by the daytime boiling increase control unit 42, and performs constant boiling increase operation for a predetermined time (for example, one hour) to eliminate the shortage of hot water. Thereafter, the process returns to step S96 and repeats the same procedure.

<Feature 1 of the first embodiment - setting screen of the remote control device>
In the basic configuration and operation described above, one of the features of this embodiment is the mode of setting and display on the remote control device 50 for performing the solar heating operation. The details will be described in order below.

As described above with reference to FIG. 5, the screen display section 60 of the remote control device 50 is always in the standby state and the standby screen 60A is displayed. When the "Menu/Enter" switch 75 is operated from this state, the display of the screen display unit 60 shifts to a main menu screen (not shown), and the "Menu/Enter" switch 75 or the like is operated appropriately. As a result, the setting screen 60B shown in FIG. 10(a) is displayed.

In this setting screen 60B, an operation mode display section 161 that selectably displays a plurality of operation modes (normal "operation mode" and "solar mode" in this example) in the storage-type water heater 1, and a message display section 162. ,have.

The "solar mode" displayed on the operation mode display unit 161 is a mode for performing the solar heating operation, and the user selects this mode when the sunshine conditions are favorable as described above. Thus, the electric power generated by the solar power generation device 3 can be used to heat the hot water in the hot water storage tank 10 . The "operating mode" is set by selecting either an "auto energy saving" mode that minimizes the required heat amount or an "auto energy saving" mode that increases the required heat amount compared to the "auto energy saving" mode. be able to. The message display section 162 displays the message "The operation mode can be changed according to the amount of hot water to be used." .

In order to select the solar mode from the state shown in FIG. 10(a), the user operates the cross key 74 downward to move the cursor K in the screen downward by one step. ). As shown in FIG. 10(b), in this setting screen 60C, the cursor K is moved to the position of "solar mode" in the operation mode display section 161 corresponding to the operation. In response to this, the message display section 162 displays the message "The solar mode will be set. Please set before the start of the night period."

FIG. 11(a) shows a state in which the user has performed a decision operation with the "Menu/Enter" switch 75 from the state shown in FIG. 10(b). As shown in FIG. 11(a), the setting screen 60D includes a date display section 163 for displaying the date on which execution/non-execution of the solar heating operation can be set, and a setting content display section 164. have.

The date display portion 163 displays dates (=date notation) for a plurality of days (two days in this example) including a predetermined display date. On the operation day on which the remote control device 50 is operated, if the operation timing is before 17:00, the display date is the operation date, and if it is after 17:00, the display date is the operation date. It will be the next day of the operation date (see also FIG. 16(a), which will be described later). FIG. 11(a) shows a case where the remote control device 50 is operated after 17:00 on September 14th, and the date display section 163 displays the next date of September 14th, which is the operation date. Dates for two days, September 15th (Saturday) and the following day, September 16th (Sunday), are displayed. At this time, 17:00 is the time that can be regarded as the limit for maintaining sufficient power generation in the photovoltaic power generation device 3 (in other words, the time when power generation is assumed to fall from a sufficient state to an insufficient state; first predetermined time) is an example. In this example, the cursor K is positioned on September 15th (September 15th is selected) of these two days. Although illustration is omitted, at a time before 17:00 on September 14th, the operation date, September 14th (Friday), and the next day are displayed in the date display section 163. Dates for two days, September 15 (Saturday), are displayed (see FIG. 16A, which will be described later).

In the setting content display section 164, there is a notation of "solar mode" indicating that the solar mode is a solar mode in which the heating operation using the sunlight can be performed, and the heating operation using the sunlight for the date on which the cursor K is positioned. Notation of "do" (when execution is set) or notation of "not" (when non-execution is set) indicating that either execution or non-execution is set, and When the upper operation is executed, the notation "Start" representing the operation start time, the notation of the start time (if set) or the notation "-" (if not set), etc. are displayed. In the illustrated example, in addition to the notation "solar mode" and the notation "start", the notation "not" and the notation "-" correspond to the setting of non-execution of the heating operation using sunlight. is displayed.

In the present embodiment, as described above in step S40, for each date displayed on the date display unit 163, the solar light heating operation (in other words, operation in the solar mode; the same shall apply hereinafter) is executed/executed. Non-execution can be set individually. FIG. 11(b) shows a state in which the user performs a decision operation with the "Menu/Enter" switch 75 in the state of the cursor K shown in FIG. As shown in FIG. 11(b), in this setting screen 60E, a message display section 165 displaying a message "Set the operation for 9/15 (Sat.)" and the above settings shown in FIG. 11(a) and a setting content display portion 166 corresponding to the content display portion 164 . In the setting content display section 166, similar to the above, "solar mode" notation, "do" notation, "not" notation, "start" notation, "-" notation, and the like are displayed. Note that, in this state, the cursor K is positioned at the notation of "not" out of the notation of "perform" and the notation of "not to be performed", indicating that the solar heating operation is not performed (that is, is not performed). It's becoming

From the state shown in FIG. 11(b), the user operates the cross key 74 upward once to move the cursor K upward in the screen in order to select the execution of the solar heating operation. The state is shown in FIG. 12(a). As shown in FIG. 12(a), in this setting screen 60F, the cursor K has moved to the notation "Yes" indicating execution of the solar heating operation, corresponding to the operation.

From the state shown in FIG. 12(a), the user operates the cross key 74 once to the right to move the cursor K in the screen to the right in order to set the start time of the solar heating operation. FIG. 12(b) shows the state in which it has been set. As shown in FIG. 12(b), in this setting screen 60G, the cursor K is positioned at the "start" notation corresponding to the operation.

FIG. 13(a) shows a state in which the user performs a decision operation with the "Menu/Enter" switch 75 from the state shown in FIG. 12(b). As shown in FIG. 13A, on this setting screen 60H, a list of start time candidates that can be set as the start time is displayed. Specifically, from the second predetermined time (for example, 7:00 in this example; not shown) after the end time of the nighttime zone (7:00 in the above example), a predetermined third predetermined time (in this example, In the time range up to 15:00 in the figure, a plurality of start time candidates ``7:00'', ``8:00'', ``9:00'', ``10:00'', ``11:00'', ``12:00'', ``13:00'', ``14:00'', `` 15 o'clock" is displayed (partially not shown). As shown in the figure, instead of displaying a list of each start time candidate in a pop-up format or an interrupt window format covering the setting screen 60H, the display of the original setting screen 60H (see, for example, FIG. 12B) is displayed. By operating the cross key 74 up and down, the start time candidates "7 o'clock", "8 o'clock", "9 o'clock", "10 o'clock", "11 o'clock", and "12 o'clock" are displayed on the screen instead of the "-" notation. The hours, 13:00, 14:00, and 15:00 may be sequentially displayed with a shift of one. The third predetermined time is set in advance to a time earlier than the first predetermined time (17:00 in the above example). is set so as to be equal to or greater than the required time required for the solar heating operation. In this embodiment, as described above, the surplus boiling-up capacity to be boiled in the solar-powered boiling-up operation is fixed at 100 L, and the time required to boil up this capacity is expected to be about 2 hours. Therefore, the time deviation is set to 2 hours, and the third predetermined time is set to 15:00, which is two hours before the first predetermined time (17:00). In addition, on the setting screen 60H, an appropriately predetermined start time candidate (for example, "12:00") may be displayed as being selected by default. Alternatively, the start time at the time of the previous setting may be displayed as being selected by default.

FIG. 13(b) shows a state in which the user sets (selects) the start time to 11 o'clock by operating the cross key 74 and the "menu/determine" switch 75 from the state shown in FIG. 13(a). . As shown in FIG. 13(b), in the setting screen 60I, the setting content display section 166 displays the aforementioned "solar mode" notation, "do" notation, and "start ” and the notation “11:00” (instead of the “-” notation) indicating that the solar heating operation will start at 11:00.

When the user operates the "Menu/Enter" switch 75 in the state shown in FIG. 13(b), the display of the screen display unit 60 returns to the setting screen 60D shown in FIG. 11(a). (However, the notation "Yes" is displayed instead of the notation "No", and the notation "11 o'clock" is displayed instead of the notation "-", not shown). At the time of this operation, the loudspeaker 73 may utter a voice such as "The setting has been made" or "The setting for September 15th has been completed".

Note that the setting for executing the solar heating operation on September 15 and the setting for setting the start time to 11:00 corresponding to the above operation are described in steps S40 and S42. , are received by the surplus boiling-up execution unit 33A and the surplus boiling-up setting unit 33C, and are reflected in the above-described control after step S40 and step S42 based on the setting contents. That is, the surplus boiling-up execution section 33A functions as execution setting receiving means described in each claim, and the surplus boiling-up setting section 33C functions as first time setting receiving means described in each claim. As a result, the excess boiling control unit 40 that executes the excess boiling process of step S300 functions as the heating control means described in each claim.

In the state where the setting screen 60D is displayed, the user can perform various settings for September 16th in the same manner as the above-described settings for September 15th. That is, when the user operates the cross key 74 downward once to move the cursor K in the screen downward, as shown in FIG. is displayed on the screen display unit 60.

In this state, when the user operates the "Menu/Determine" switch 75, as shown in FIG. A setting screen 60K having a message display portion 165 and a setting content display portion 166 is displayed. After that, the user operates the cross key 74 upward once in the same manner as described above, so that the cursor K moves to the notation "Yes" as shown in the setting screen 60L of FIG. FIG. 15 shows a state in which the cursor K is moved to the right and the "menu/determine" switch 75 is operated to set (select) the start time from the same list display of start time candidates (not shown). (b).

As shown in FIG. 15(b), in the setting screen 60M, the above-mentioned "solar mode" notation, "on" notation, and "start" are displayed in the setting content display section 166 corresponding to the operations performed so far. and a notation representing the start time of the solar heating operation ("14:00" notation corresponding to the start time 14:00 in this example) are displayed. 15(b), the display of the screen display section 60 changes to the setting screen 60D shown in FIG. 11(a). back to At the time of this operation as well, the speaker 73 may utter a voice such as "The setting has been made" or "The setting for September 16th has been completed".

In the same manner as described above, the setting to the effect that the solar light heating operation will be executed on September 16th and the setting to set the start time to 14:00 corresponding to the above operation are the surplus boiling-up execution unit 33A and is received by the excess boiling-up setting unit 33C, and is reflected in the control after step S40 and step S42.

Further, the screen transition (in other words, display of each setting screen) of the screen display section 60 shown in FIGS. 5 and 10 to 15 described above is controlled by the display control section 33B. That is, the display control section 33B functions as setting display control means described in each claim.

<Timetable representing various processes>
An example of date notation for a plurality of days (two days in this example) displayed in the date display section 163 described in the setting screens 60B to 60M displayed on the screen display section 60 of the remote control device 50 is FIG. 16(a) shows the timetable shown in FIG.

<Date display>
As described above, the date display portion 163 displays dates for a plurality of days including a predetermined display date. On the other hand, if it is after 17:00, the display date will be the day following the operation date. Therefore, as shown in FIG. 16(a) as an example, before 17:00 on September 14 (Friday), the date display section 163 displays both days "9/14" and "9/15". be. Then, after 17:00 on September 14th (Friday), both days "9/15" and "9/16" will be displayed on the date display section 163, and September 15th (Saturday) will be displayed. This display is displayed until 17:00. After that, after 17:00 on September 15th (Saturday), both dates "9/16" and "9/17" are similarly displayed on the date display section 163. This is displayed until before 17:00 on Sunday). After that, after 17:00 on September 16th (Sunday), both dates "9/17" and "9/18" are similarly displayed on the date display section 163. The display mode is repeated.

<Possibility of setting each date>
On the other hand, corresponding to the date display on the date display section 163 shown in FIG. An example of whether or not to set execution/non-execution of the solar heating operation (operation in solar mode) (selection of "execute" or "not execute") is shown in FIG. shown in

As described above with reference to FIG. 16(a), before 17:00 on September 14 (Friday), the date display section 163 displays both "9/14" and "9/15". be. However, at that time, of the two days displayed on the date display section 163, for "9/14" which is the day of the operation, the execution/non-execution setting ("menu/ decision operation of the decision switch 75) cannot be performed (=in other words, it cannot be accepted by the surplus boiling-up execution unit 33A; the same applies hereinafter). For "9/15", which is the day following the operation date, as described above, execution/non-execution setting (decision operation of the "menu/decision" switch 75 in the state where the cursor K is positioned) can be performed. can.

As described above, after 17:00 on September 14th (Friday), the date display section 163 displays "9/15" on the next day of the operation and "9/16" on the next day. is displayed. After 17:00 and before 23:00 (which is the start time of the nighttime zone), the execution/non-execution setting ( Determination operation of the "Menu/Determination" switch 75 in a state where the cursor K is positioned can be performed. However, after 23:00 on September 14th (Friday), the execution/non-execution setting ("Menu/Decision ” switch 75) cannot be performed.

After that, when the date changes to September 15 (Saturday), both days "9/15" and "9/16" continue to be displayed on the date display section 163 until 17:00 as described above. , the execution/non-execution setting (decision operation of the "menu/decision" switch 75 in the state where the cursor K is positioned) cannot be performed for "9/15" which is the current day, while "9/16" which is the next day cannot be performed. , it is possible to set execution/non-execution (decision operation of the "menu/decision" switch 75 in the state where the cursor K is positioned).

After 17:00 on September 15 (Saturday), the date display section 163 displays both "9/16" and "9/17", the day following the operation date, in the same manner as described above. After 17:00 and before 23:00, execution/non-execution can be set for both days. After 23:00 on September 15th (Saturday), the execution/non-execution setting cannot be performed for the next day "9/16". After that, until 17:00 on September 16 (Sunday), both days "9/16" and "9/17" are continuously displayed on the date display section 163, and the above-mentioned execution is performed for the day "9/16". - While it is not possible to set non-execution, it is possible to set execution/non-execution for the next day "9/17". After 17:00, both dates "9/17" and "9/18" are displayed on the date display section 163 in the same manner as described above. You can set non-execution. Thereafter, similar processing modes are repeated.

<Possibility of Cancellation of Settings>
Here, in the present embodiment, the surplus boiling-up execution unit 33A sets execution/non-execution of the sunlight-based boiling-up operation (operation in solar mode) on each of the dates, which is received as described above. can be canceled individually by subsequent appropriate operations (detailed description and illustration are omitted) on the remote control device 5 . FIG. 16(c) of the timetable shown in FIG. 16 shows an example of whether or not the cancellation (hereinafter referred to as "setting cancellation" or "cancel" as appropriate) operation is possible.

As described above with reference to FIG. 16(b), before 17:00 on September 14 (Friday), the execution/non-execution setting for "9/15", which is the day following the operation date, is performed. It can be performed. Correspondingly, as shown in FIG. 16(c), before 17:00, the execution/non-execution setting can be canceled for the next day "9/15".

After that, on September 14th (Friday) after 17:00 and before 23:00 (the start time of the nighttime zone), the next day "9/15" and the next day "9/ 16" can be set to be executed or not executed as described above. Correspondingly, as shown in FIG. 16(c), after 17:00 and before 23:00, the execution/non-execution setting is canceled for "9/15" and "9/16". be able to.

After that, as described above, from 23:00 on September 14th (Friday) to before 17:00 on September 15th (Saturday), as described above for "9/16", execution / non-execution Settings can be made. At this time, as shown in FIG. , and "9/15", the execution/non-execution setting can be canceled. That is, the setting for September 15th can be canceled even after the day of September 15th. However, at this time, if the execution of the solar heating operation is selected on that day (here, September 15th), the solar heating operation on that day, that is, on the operating day of the solar heating operation After the time when the top-up operation ends, the setting cannot be canceled (=in other words, it cannot be accepted by the surplus boiling-up execution unit 33A. The same applies hereinafter). In the illustrated example, on September 15 (Saturday), the solar heating operation starts at 11:00 (that is, in this case, the solar heating starts at 15:00 two hours later, as described above). 15:00 on September 15th (Saturday), it will not be possible to cancel the execution setting for "9/15".

After that, in the same way as above, after 17:00 and before 23:00 on September 15 (Saturday), it is possible to set execution/non-execution for both days "9/16" and "9/17". 16(c), the execution/non-execution setting can be canceled for "9/16" and "9/17".

After that, as described above, from 23:00 on September 15th (Saturday) to before 17:00 on September 16th (Sunday), the execution/non-execution setting for "9/17" Corresponding to the fact that it is possible, as shown in FIG. 16(c), the execution/non-execution setting can be canceled for "9/17" and "9/16" in the time range. However, at that time, as described above, if the execution of the solar-powered boiling operation is selected on that day (here, September 16th), the sunlight on September 16th (Sunday), which is the operation day, is selected. The above setting cannot be canceled after the end time of the boiling-up operation. In the illustrated example, the heating operation using sunlight is started at 14:00 on September 16 (Sunday) (that is, the heating operation using sunlight ends at 16:00 two hours later). For this reason, after 16:00 on September 16th (Sunday), it will not be possible to cancel the execution setting for "9/16".

Further, after 17:00 on September 16th (Sunday), it is possible to set execution/non-execution for both days "9/17" and "9/18" in the same manner as described above. can be canceled. Thereafter, similar processing modes are repeated.

<Possibility of changing the start time of the solar heating operation>
Furthermore, in the present embodiment, the surplus boiling-up setting unit 33C sets the start time of the sunlight-based boiling-up operation (operation in the solar mode) on each date, which is received as described above, after that Each due date can be individually changed by an appropriate operation (detailed description and illustration are omitted) on the remote control device 5 . FIG. 16(d) of the timetable shown in FIG. 16 shows an example of whether or not the time change operation is possible.

As described above with reference to FIG. 16B and the like, before 17:00 on September 14 (Friday), the execution/non-execution of "9/15", which is the day following the operation date, is performed. Settings can be made (if the execution is set, the start time can also be set). In response to this, as shown in FIG. 16(d), before 17:00, the start time is changed (hereinafter simply referred to as "time change" as appropriate) for the next day "9/15". It can be carried out.

After that, on September 14th (Friday) after 17:00 and before 23:00 (the start time of the nighttime zone), the next day "9/15" and the next day "9/ 16" can be set to be executed or not executed as described above. Correspondingly, as shown in FIG. 16(d), the time can be changed for "9/15" and "9/16" after 17:00 and before 23:00.

After that, as described above, from 23:00 on September 14th (Friday) to before 17:00 on September 15th (Saturday), as described above for "9/16", execution / non-execution Settings can be made. At this time, as shown in FIG. , "9/15" can also be changed. That is, the setting for September 15th can be changed even after the day of September 15th. However, at this time, in a state where the execution of the solar heating operation is selected on that day (September 15 in this case), the solar light utilization on that day, that is, on the operation day of the solar heating operation After the time when the boiling-up operation is started, the time change cannot be performed (=in other words, it is not accepted by the surplus boiling-up setting unit 33C. The same applies hereinafter). In the illustrated example, on September 15th (Saturday), the solar heating operation is set to start at 11:00, so after 11:00 on September 15th (Saturday) will not be able to change the start time to "11:00 on 9/15".

After that, in the same way as above, after 17:00 and before 23:00 on September 15 (Saturday), it is possible to set execution/non-execution for both days "9/16" and "9/17". , the time can be changed for "9/16" and "9/17" as shown in FIG. 16(d).

After that, as described above, from 23:00 on September 15th (Saturday) to before 17:00 on September 16th (Sunday), the execution/non-execution setting for "9/17" Corresponding to the fact that it is possible, as shown in FIG. 16(d), the time can be changed for "9/17" and "9/16" in the time range. However, at that time, as described above, if the execution of the solar-powered boiling operation is selected on that day (here, September 16th), the sunlight on September 16th (Sunday), which is the operation day, is selected. The time change cannot be performed after the start time of the boil-up operation. In the illustrated example, since the solar-powered heating operation is started at 14:00 on September 16 (Sunday), after 14:00 on September 16 (Sunday), the "9/16 It becomes impossible to change the start time to "14:00 on the day."

Further, after 17:00 on September 16th (Sunday), it is possible to set execution/non-execution for both days "9/17" and "9/18" in the same manner as described above. can be changed. Thereafter, similar processing modes are repeated.

<Feature 2 of the first embodiment - Transition of the standby screen of the remote controller>
Another feature of the present embodiment is the mode of transition of the display on the standby screen on the screen display section 60 of the remote control device 50 when the sunlight-based boiling operation is performed. The details will be described in order below.

As described above with reference to FIG. 5 and the like, the standby screen 60A is displayed on the screen display section 60 of the remote controller 50 in the standby state. Then, when the execution of the solar heating operation (and its start time) is set as described above, different forms of display are performed according to the length of the period remaining until the execution. .

That is, as described above, execution or non-execution of the heating operation using sunlight is selected for the plurality of days (two days in this example), and execution of the heating operation using sunlight is selected for at least one day. In this case, as shown in FIG. 17(a), the date display portion 171 of the standby screen 60P displays the most recent date out of at least one date (=operation day) on which the execution was selected. be. The display on the date display section 171 is performed from the time when the solar heating operation is set to be performed until the day before the most recent operation day. In the standby screen 60P of FIG. 17(a), as described above, the solar heating operation is started at 11:00 on September 15 (Saturday) and at 14:00 on September 16 (Sunday). It shows the display state at 20:00 on September 14 (Friday) when the solar heating operation is set to start at :00. With this setting, the operation date of the most recent solar heating operation will be September 15 (Saturday), so the date display unit 171 will display "9 /15” is displayed.

In addition, in this embodiment, when the date of the most recent operation date is displayed in the date display unit 171 (that is, until the day before the most recent operation date), the date display unit 171 has A surplus boiling warning mark MK (in the shape of a sun mark, corresponding to an example of a warning display) is displayed to give a warning of the execution of the operation.

After the state shown in FIG. 17(a), when the latest operating day comes, the screen display unit 60 displays the standby screen 60Q of FIG. 17(b). In this standby screen 60Q, instead of the date display section 171 in the standby screen 60P, a time display section 172 is provided to indicate the start time of the solar heating operation on the operation day of the solar heating operation. be done. More specifically, the display is switched from the date display unit 171 to the time display unit 172 from 0:00 a.m. in the night zone, not at 0:00 a.m. when the date is switched from the day before the driving day to the driving day. This is performed at a later fourth predetermined time (for example, 1:00; see FIG. 21(a), etc., which will be described later).

In the example shown in FIG. 17(b), the time display unit 172 displays "11: 00” is displayed. It should be noted that the display on the time display unit 172 is performed after the operating day of the heating operation using sunlight is reached and until the heating operation using sunlight is actually started.

After the state shown in FIG. 17(b), when the start time of the solar heating operation on the operating day comes, the screen display unit 60 displays the standby screen 60R of FIG. In this standby screen 60R, instead of the date display portion 171 and the surplus boiling warning mark MK on the standby screen 60Q, a message "Adding hot water" indicating that the solar heating operation is being executed is displayed. MS (corresponding to an example of execution display) is displayed. Note that this message display MS is performed while the solar heating operation is actually being executed (in the illustrated example, the state at 11:30 on September 15 (Saturday) is shown). .

<Feature 3 of the first embodiment-confirmation display that pops up in the standby screen at the time of operation>
Further, another feature of the present embodiment is that when the standby screen is displayed when performing the solar heating operation, a confirmation display that pops up in response to a predetermined operation (details will be described later) It is in. The details will be described in order below.

As described above, in this embodiment, the user himself or herself judges whether the sunshine conditions are good or bad based on weather information or the like, and manually sets whether or not to execute the solar heating operation. In this case, it would be convenient for the user to be able to confirm in some way that when the operation date for the solar heating operation is approaching, it is set to actually execute the solar heating operation.

Therefore, in the present embodiment, at a predetermined timing before the solar heating operation is actually executed according to the user's setting, a display prompting reconfirmation of the setting for the execution is displayed on the screen display unit 60. . In this example, the predetermined timing is after the first predetermined time (17:00 in this example) on the day before the driving day and before the start time of the nighttime period (23:00 in this example). Moreover, the timing (predetermined timing example). It should be noted that it may be separately set to an appropriate timing other than this (another example of the predetermined timing).

For example, FIG. 19(a) shows a state in which the standby screen 60P is displayed at 20:00 on September 14 (Friday) as described above with reference to FIG. 17(a). When the user performs some kind of operation from this state, as shown in FIG. 19B, a pop-up screen PU that substantially covers the standby screen 60P is displayed. In this example, this pop-up screen PU corresponds to the setting that the solar heating operation will be executed at 11:00 on September 15 (Saturday) in order to prompt reconfirmation of the execution setting. Then, a message M1 is displayed that reads, "Tomorrow (9/15), the solar mode is set to be used from 11:00."

When the user performs an appropriate operation on the remote control device 50 (in this example, presses the "menu/determine" switch 75) while the pop-up screen PU is displayed, the display on the screen display unit 60 is displayed. , as shown in FIG. 19(c), the setting screen 60I (see FIG. 13(b)) for setting the date (9/15 in this example) included in the message M1 (that is, by one-touch operation transferable). In response to this, the pop-up screen PU shown in FIG. 19(b) displays a message M2 stating "[Menu/Determine] moves to the setting confirmation and change screen". Instead of the pop-up screen PU, a window screen that interrupts the standby screen 60P may be used. Alternatively, the entire screen may be switched from the standby screen 60P to a new separate screen including the content corresponding to the pop-up screen PU (the same applies hereinafter).

Further, for example, FIG. 20(a) shows, as another example, a state in which a standby screen 60P2 similar to the standby screen 60P is displayed at 20:00 on Saturday, September 15 (see FIG. 20). 17, the solar heating operation is set to be performed at 14:00 on Sunday, September 16). From this state, when the user performs some operation in the same manner as described above, the pop-up screen PU shown in FIG. 20(b) is displayed. In this pop-up screen PU, as before, a message M1 prompting reconfirmation, "Tomorrow (9/16), the solar mode is set to be used from 14:00." Confirmation of settings, move to change screen" message M2 is displayed. By performing the appropriate operation while the popup screen PU is displayed, the user can set the date (9/16 in this example) included in the message M1 as shown in FIG. 20(c). The screen shifts to the setting screen 60M (see FIG. 13(b)).

17, 18, 19, and 20 (in other words, the display of each standby screen) of the screen display section 60 described above is controlled by the display control section 33B. That is, the display control section 33B functions as standby display control means, confirmation display control means, and transition display control means described in each claim.

<Timetable of standby screen display example>
21(a) of the timetable shown in FIG. show.

In FIG. 21( a ), in this example, the start times of 11:00 on September 15 (Saturday) and 14:00 on September 16 (Sunday) are set as the start times. Execution of light-based boiling operation (operation in solar mode) is set at 20:00 on September 14 (Friday). As described above, after the execution of the solar heating operation is set, the date display unit 171 displays the latest The date display of the operation day is performed. As a result, from 20:00 on September 14 (Friday) to before 1:00 on September 15 (Saturday), "9/15" is displayed in the date display section 171 on the standby screen 60P. , and the surplus boiling warning mark MK (in the shape of a sun mark) is displayed next to it as described above. Then, if any operation is performed by the user before 20:00 to 23:00 on September 14 (Friday), the message "Tomorrow (9/15), the solar mode will be set to be used from 11:00 The pop-up screen PU is displayed, including the message M1 of ".

After that, as described above, after 1:00 on the most recent operating day, the time display unit 172 displays the start time of the heating operation using sunlight, and the heating operation using sunlight is actually being performed. During this time, the message display MS is displayed. As a result, as shown in the figure, from 1:00 to 11:00 on September 15 (Saturday), in addition to the surplus boiling warning mark MK (sun mark shape), the time display is displayed on the standby screen 60Q. “11:00” is displayed in section 172 . Then, as described above, after the start of the solar heating operation at 11:00 on September 15 (Saturday), the system waited until 13:00 when the solar heating operation ended. On the screen 60R, the message display MS of "adding hot water" is displayed.

After that, after 13:00 on September 15 (Saturday), "9/16" in the date display section 171 of the standby screen 60P and the surplus boiling warning mark MK (sun mark shape) are displayed in the same manner as above, This is displayed until before 1:00 on Sunday, September 16th. If any operation is performed by the user before 17:00 to 23:00 on September 15 (Saturday), the message "Tomorrow (September 16), solar mode will be set from 14:00 is displayed. After 1:00 on September 16 (Sunday), "14:00" and the surplus boiling warning mark MK (in the shape of a sun mark) are displayed in the time display section 172 of the standby screen 60Q in the same manner as described above. After that, from 14:00 to 16:00 on September 16 (Sunday), the message display MS of "Adding hot water" is displayed on the standby screen 60R. In this example shown in FIG. 21(a), before 20:00 on September 14th (Friday) and after 16:00 on September 16th (Sunday) before the setting is performed, The standby screen 60A shown in FIG. 5 does not have the date display portion 171, the time display portion 172, the surplus boiling warning mark MK, or the message display MS (abbreviated by the "x" mark in FIG. 21(a)). is displayed.

In FIG. 21 (b), apart from the above, the setting of non-execution of the solar heating operation on September 15 (Saturday), and the start time of 14:00 on September 16 (Sunday) is set at 20:00 on September 14 (Friday). In this case, since the most recent operation day is September 16 (Sunday), as shown in the figure, from 20:00 on September 14 (Friday) to before 1:00 on September 16 (Saturday) Until then, in the standby screen 60P, the date display portion 171 displays "9/16", and as described above, the surplus boiling warning mark MK (sun mark shape) is displayed next to it. If any operation is performed by the user before 17:00 to 23:00 on September 15 (Saturday), the message "Tomorrow (September 16) will be in solar mode from 14:00," The pop-up screen PU including the message M1 of "It is set to be used." is displayed.

After that, from 1:00 to 14:00 on September 16 (Sunday), the standby screen 60Q displays "14: 00” is displayed. Then, as described above, after the start of the solar heating operation at 14:00 on September 16th (Sunday), the system waits until 16:00 when the solar heating operation ends. On the screen 60R, the message display MS of "adding hot water" is displayed. In this example shown in FIG. 21(b), before 20:00 on September 14th (Friday) and after 16:00 on September 16th (Sunday) before the setting is performed, The standby screen 60A shown in FIG. 5 does not have the date display portion 171, the time display portion 172, the surplus boiling warning mark MK, or the message display MS (abbreviated by the "x" mark in FIG. 21(a)). is displayed.

Further, in FIG. 21(c), similarly to FIG. Sunday), the start time of 14:00 was set at 20:00 on September 14th (Friday), and then at 6:00 on September 15th (Saturday). shows an example in which the setting of the start time of 11:00 on September 15 (Saturday) is changed to 12:00.

In this case, the process is the same as in FIG. 21(a) until the change is made. In 60P, "9/15" is displayed on the date display portion 171, and as described above, the surplus boiling warning mark MK (sun mark shape) is displayed next to it, and the date of September 14 (Friday) is displayed. If a user operation is performed before 20:00 to 23:00, the pop-up screen PU is displayed. After that, from 1:00 to 6:00 on September 15 (Saturday), in the standby screen 60Q, in addition to the surplus boiling warning mark MK (sun mark shape), "11: 00” is displayed. After the change is made at 6:00 on September 15th (Saturday), the standby screen will be displayed until 12:00 on September 15th (Saturday) in response to this change. At 60Q, "12:00" is displayed on the time display section 172 in addition to the surplus boiling warning mark MK (sun mark shape). Then, at 12:00 on September 15 (Saturday) after that, the setting (reflecting the content of the change) to the effect that the solar heating operation will be started from 12:00 is changed from step S40 to As described in step S42, the surplus boiling-up execution section 33A and the surplus boiling-up setting section 33C accept the setting, and the above-described control from step S40 and step S42 onward is executed based on this setting. After 12:00 when the heating operation using the sunlight is started and until 14:00 when the heating operation using the sunlight is finished, the message display MS of "Adding hot water" is displayed on the standby screen 60R. be. The subsequent steps are the same as in FIG. 21(a), and the description is omitted.

Furthermore, in FIG. 21(d), similarly to FIG. Sunday), the start time of 14:00 was set at 20:00 on September 14th (Friday), and then at 11:00 on September 15th (Saturday). shows an example in which the setting of the start time of 11:00 on September 15 (Saturday) is changed to 10:00.

In this case, as before, the display mode is the same as that of FIG. 21(a) until the change is made. Before, in the standby screen 60P, "9/15" was displayed in the date display portion 171, and as described above, the surplus boiling warning mark MK (sun mark shape) was displayed next to it, and September The pop-up screen PU is displayed when the user performs a user operation before 20:00 to 23:00 on the 14th (Friday). After that, from 1:00 to 11:00 on September 15 (Saturday), the standby screen 60Q displays "11: 00” is displayed. Then, if the above-mentioned change to 10:00 is made at 11:00 on September 15 (Saturday), the advanced start time of 10:00 has already passed in accordance with this change. Therefore, the setting (reflecting the content of the change) to start the execution of the sunlight-based boiling operation from 10:00 is set by the surplus boiling-up execution unit as described in steps S40 and S42. 33A and the surplus boiling-up setting unit 33C, and control is executed based on these settings. That is, corresponding to the fact that the start time has already passed, the judgment of step S320 in FIG. boiling operation) is started. After the solar heating operation is started at 11:00 in this way, until the solar heating operation is finished two hours later (that is, 13:00), the standby screen 60R is displayed with the "addition of hot water." A message display MS of "Medium" is displayed. The subsequent steps are the same as in FIG. 21(a), and the description is omitted.

<Effects of the first embodiment>
As described above, according to the present embodiment, the screen display unit 60 displays the pop-up screen PU prompting reconfirmation of the setting for the execution at a predetermined timing before the solar water heating operation is executed. be done. This allows the user to recognize anew that the heating operation using sunlight is set to be performed on the operation day of the heating operation using sunlight.

It also has the following significance. That is, after the user has set the execution of the solar heating operation, the user may review the execution setting again due to circumstances such as the weather forecast for the operation day changing to worse weather than at first. There may be times when it is better to If the solar heating operation is performed on the operation day in the bad weather, the amount of power generated by the solar power generation device 3 becomes almost zero, and as a result, the commercial power supply 49 is used for the expensive daytime electric power for the heating operation. There is a risk that it will be done.

According to the present embodiment, as described above, by displaying the pop-up screen PU on the screen display unit 60, whether or not it is permissible to execute the solar-powered boiling-up operation on the operating day can be determined. Don't forget to review it again. As a result, it is possible to prevent the unnecessary boiling-up operation in bad weather as described above, and to improve the convenience for the user.

Moreover, in the present embodiment, the predetermined timing is a timing after the first predetermined time (17:00 in the above example) on the day before the day of operation on which the solar heating operation is performed. That is, if the timing of the reconsideration by the user is much earlier than the execution of the solar heating operation, there is a concern that the contents of the weather forecast for the operating day may change after the reconsideration. Therefore, it is desirable that the timing of the reexamination should be immediately before the solar heating operation. According to this embodiment, the above concerns can be dispelled by setting the predetermined timing to the timing of transition to the first predetermined time (for example, 17:00) on the day before the operation day.

Further, particularly in the present embodiment, the predetermined timing is after the first predetermined time (for example, 17:00) on the day before the driving day and before the start time of the night time period (23:00 in the above example). It's time to. This has the following significance. In other words, the night time period usually starts late at midnight on a certain date, changes to the next day's date at midnight, and continues until the early morning of the next day (for example, determined by the contract with the electric power company). . Then, depending on whether or not the heating operation using solar power is to be performed on the next day, the mode of the heating operation in the nighttime will change (if the heating operation using solar light is to be performed on the next day, in order to subtract the amount of hot water expected to be boiled in the above-mentioned solar heating operation from the amount of hot water to be boiled in the heating operation performed in the night time zone). Therefore, when the execution/non-execution of the solar heating operation is changed, it is preferable to do so by the start time (for example, 23:00) of the nighttime zone on the day before the operation day.

According to the present embodiment, by displaying the pop-up screen until before the start time (for example, 23:00) of the nighttime period on the day before the driving day, the execution/non-execution is changed. In addition, it can be reliably reflected in the boiling state in the nighttime zone.

Further, particularly in the present embodiment, the predetermined timing is after the first predetermined time (for example, 17:00), and an appropriate operation related to the hot water storage type hot water heater 1 (in the above example, execution of hot water supply). related operation) is executed. In this way, when the user performs some operation, the pop-up screen PU is displayed at that timing, thereby reliably recognizing that the solar light heating operation is to be executed, thereby enabling the solar light heating operation to be performed. It is possible to reliably reconsider whether or not it is permissible to perform upward operation.

In the present embodiment, the predetermined timing is the operation of supplying hot water from the hot water storage tank 10 to the bathtub in the remote control device 50, that is, the timing at which the "automatic bath" switch 71 is pressed. Alternatively, it includes the timing at which the hot water supply operation (operation to open the hot water tap 94) in the hot water storage tank 10 is performed.

That is, when the "automatic bath" switch 71 is operated to fill the hot water with the remote control device 50, the user is facing the image display section 60 of the remote control device 50, and the image display section 60 is reliably displayed. I am watching. In the present embodiment, by displaying the pop-up screen PU at the timing of the operation of the "bath automatic" switch 71, the user is made to more reliably recognize that the setting is to execute the solar heating operation. , it is possible to further reliably reconsider whether or not it is permissible to perform the solar heating operation.

Further, when the hot water pouring operation is performed, usually, some kind of display accompanying the hot water pouring operation (temperature display, lighting display of a flame-shaped mark, etc.) is performed on the image display unit 60 of the remote control device 50. There is a high possibility that the image display unit 60 will be viewed. Therefore, by displaying the pop-up screen PU at the timing of the hot water supply operation, the user can more reliably recognize that the heating operation using the sunlight is set to be executed, and the heating operation using the sunlight can be performed. It is possible to further reliably reconsider whether or not it can be executed.

In this embodiment, the confirmation display is performed by a pop-up screen PU (or a window screen that interrupts the standby screens 60P and 60P2 that are normally displayed on the image display unit 60). By doing so, it is possible to reliably make the user aware of it in a visually conspicuous and impressive manner.

In addition, particularly in this embodiment, setting screens 60B to 60M different from the standby screens 60P, 60P2, etc. that are normally displayed on the image display unit 60 are displayed, and the user can select a specific date ( Operation day) can be set to execute the solar heating operation.

Further, particularly in the present embodiment, from the state where the pop-up screen PU (or the window screen) is being displayed, the above-mentioned The setting screens 60I and 60M are displayed. Accordingly, when the user who has performed the reconsideration by looking at the pop-up screen PU or the like wants to change the setting of the execution of the solar heating operation on the operating day, the user can appropriately perform the one-touch operation. , the user can easily move to the setting screens 60I and 60M and change the setting.

In addition, particularly in this embodiment, the selection of execution/non-execution of the solar heating operation and the setting of the start time can be performed over a plurality of consecutive days (two consecutive days in the above example). Moreover, the selection of execution/non-execution and the setting of the start time of the solar heating operation can be individually performed for each of the plurality of dates. As a result, the user can, for example, pre-register for a plurality of days (9 days in accordance with the above example) on a desired day (September 14 (Friday) in accordance with the above example) prior to the operation date of the solar heating operation. Selection of execution/non-execution of the above-mentioned solar-powered boiling operation for two days (Saturday, September 15 and Sunday, September 16) (see FIGS. 12(a), 15(a), etc.) and The setting of the start time (see FIGS. 13(b), 15(b), etc.) for the operation day can be performed at once, and the selection/setting contents can be individually changed for each date. As a result, the user's convenience can be improved by eliminating the complexity of having to set the execution/non-execution of the solar heating operation and the setting of the operation start time every day.

A second embodiment of the present invention will be described with reference to FIGS. 22 to 32. FIG. In this embodiment, on the same setting screen as described above, the selection of execution/non-execution of the solar heating operation and the setting of the start time thereof are performed on a continuous predetermined date (hereinafter referred to as a continuous date as appropriate. For example, one week). is an appropriate number of days). The same reference numerals are assigned to the same parts as in the first embodiment, and the description is omitted or simplified as appropriate.

<Functional configuration>
The functional configuration of the control device 31 in this embodiment is the same as that shown in FIG. As in the first embodiment, the user confirms known weather information displayed on the remote controller 50, or known weather information displayed on an information terminal (not shown) outside the hot water supply system. Then, based on the weather information, it is determined whether or not the solar heating operation can be performed on the target consecutive days (in this example, seven consecutive days for one week). Note that, as in the first embodiment, the continuous date is, for example, the day after the desired date on which the execution of the control procedure according to the flow shown in FIGS. The next day (hereinafter simply referred to as "the day after next" as appropriate), and a plurality of days including, in this example, one week starting from the next day, that is, a total of seven days. In addition, it is good also considering the day after next of the said desired date as the said start date.

As in the first embodiment, the user, for example, estimates the behavior of the power generation amount based on the weather information, determines whether the solar heating operation can be performed, and determines whether the solar heating operation can be performed. As in the first embodiment, various corresponding settings are manually performed using the remote controller 50 having the configuration shown in FIG. 5 (details will be described later). Based on this setting, the control device 31 executes the control procedures shown in the flowcharts of FIGS. 6, 7, 8, and 9, as in the first embodiment.

<Feature 1 of the second embodiment: setting screen of the remote controller>
As in the first embodiment, one of the features of this embodiment is the mode of setting and display on the remote control device 50 for performing the solar heating operation. The details will be described in order below.

As described above with reference to FIG. 5, the screen display section 60 of the remote control device 50 is always in the standby state and the standby screen 60A is displayed. In this embodiment, when the "menu/determine" switch 75 is operated from this state, the display of the screen display unit 60 shifts to a main menu screen (not shown), and the "menu/determine" switch 75, etc. When an appropriate operation is performed, the setting screen 60B' shown in FIG. 22(a) is displayed.

This setting screen 60B′ includes an operation mode display section 161 that selectably displays a plurality of operation modes (in this example, normal “operation mode” and “solar mode for one week”) in the storage-type water heater 1, and a message and a display unit 162 . The "solar mode for 1 week" displayed on the operation mode display section 161 is a mode for performing the solar heating operation, like the "solar mode" of the first embodiment.

FIG. 22 shows a state in which the user operates the cross key 74 downward to move the cursor K in the screen downward by one step in order to select the solar mode for one week from the state shown in FIG. (b). As shown in FIG. 22(b), in this setting screen 60C', the cursor K has moved to the position of "solar mode 1 week" in the operation mode display section 161 corresponding to the operation. In response to this, the message display section 162 displays a message that reads, "The solar mode will be set for one week. Please set before the start of the night period."

In this embodiment, on the operation date (corresponding to the display date) on which the above-described operation is performed on the remote control device 50, for each of the dates for one week starting from the day following the operation date, the above-described Execution/non-execution of the heating operation using sunlight (in other words, one-week solar mode operation; the same shall apply hereinafter) can be collectively set. FIG. 23(a) shows a state in which the user performs a determination operation with the "menu/determine" switch 75 in the state of the cursor K shown in FIG. 22(b) in order to perform this setting.

As shown in FIG. 23A, the setting screen 60E' has a message display section 165 and a setting content display section 166. As shown in FIG. FIG. 23(a) shows a case where the remote control device 50 is operated on September 14th. In response to (Friday), the message display section 165 displays the message "The operation will be set until 9/21 (Friday)." That is, the message display section 165 displays the final date after the plurality of days (in this example, seven days, which is one week) have elapsed since the operation date.

In addition, in the setting content display section 166, each target date (in this example, September 15 (Saturday), September 16 (Sunday), September 17 (Monday), September 18 (Tuesday) , September 19th (Wednesday), September 20th (Thursday), September 21st (Friday)) collectively collectively, either execution or non-execution of the above-mentioned solar heating operation "Yes" (if execution is set) or "No" (if non-execution is set) indicating that it is set, and the operation start when the solar heating operation is executed The notation "start" representing the time, the notation of the start time (if set) or the notation "-" (if not set), and the like are displayed. In the illustrated example, in addition to the "solar mode one week" and the "start" notation, the "not" notation and the "-" notation correspond to the setting of non-execution of the solar heating operation. is displayed. Note that, in this state, the cursor K is positioned at the notation of "not" out of the notation of "perform" and the notation of "not to be performed", indicating that the solar heating operation is not performed (that is, is not performed). It's becoming

From the state shown in FIG. 23(a), the user operates the cross key 74 upward once to move the cursor K upward in the screen in order to select the execution of the solar heating operation. The state is shown in FIG. 23(b). As shown in FIG. 23(b), in this setting screen 60F', the cursor K has moved to the notation "Yes", which indicates execution of the solar heating operation, corresponding to the operation.

From the state shown in FIG. 23(b), the user operates the cross key 74 once to the right to move the cursor K in the screen to the right in order to set the start time of the solar heating operation. FIG. 24(a) shows the state in which it has been set. As shown in FIG. 24(a), in this setting screen 60G', the cursor K is positioned at the "start" notation corresponding to the operation.

FIG. 24(b) shows a state in which the user has performed a decision operation with the "Menu/Enter" switch 75 from the state shown in FIG. 24(a). As shown in FIG. 24(b), on this setting screen 60H', similarly to the setting screen 60H of FIG. 13(a) of the first embodiment, a list of start time candidates that can be set as the start time is displayed. be. Specifically, from the second predetermined time (for example, 7:00 in this example; not shown) after the end time of the nighttime zone (7:00 in the above example), the predetermined third predetermined time (this In the example, in the time range up to 15:00 in the figure, a plurality of start time candidates ``7:00'', ``8:00'', ``9:00'', ``10:00'', ``11:00'', ``12:00'', ``13:00'', ``14:00'' ' and '15 o'clock' are displayed (partially not shown). As in the first embodiment, instead of displaying a list of start time candidates in a pop-up format or an interrupt window format as shown in the figure, the start time candidate "7 o'clock" is displayed on the original setting screen 60H'. ', '8 o'clock', '9 o'clock', '10 o'clock', '11 o'clock', '12 o'clock', '13 o'clock', '14 o'clock', and '15 o'clock' may be shifted one by one and displayed sequentially.

The third predetermined time is an example of a time that can be regarded as a limit for maintaining sufficient power generation in the photovoltaic power generation device 3 (in other words, a time that is assumed to fall from a sufficient power generation state to an insufficient state). is set in advance at a time earlier than the first predetermined time (for example, 17:00), and in this example, as in the first embodiment, the time deviation from the first predetermined time (17:00) is particularly , is set to be equal to or longer than the required time required for the solar heating operation. Also in this embodiment, as in the first embodiment, the surplus boiling capacity to be boiled in the sunlight-based boiling operation is fixed to, for example, 100 L (however, as in the above, the surplus boiling capacity is variable may be set), and it is expected that the time required to boil this capacity is approximately 2 hours. :00) is set to 15:00, two hours before.
However, as in the first embodiment, a plurality of types of fixed values (for example, 100L, 50L, etc.) may be prepared and which one to select and apply may be determined in advance. As in the above, it may be set by operation input, may be automatically determined based on the usage history, may be corrected and corrected as appropriate based on a fixed value, or may be corrected using sunlight. You may include what prohibits boiling-up operation. Then, the selection of the type of fixed value, the presence or absence of correction, and the content of correction may be collectively set by the remote control device 50 by the user (or determined by the control device 31) for each date in the consecutive dates. In this case, as described above, the designation of the continuous date in which the surplus boiling-up capacity is zero may be a season or a time zone (so-called peak cut) in which the power demand is extremely high, or any time when the operator is absent due to travel or the like. The user may specify the period.
In the setting screen 60H', similarly to the setting screen 60H of the first embodiment, an appropriately predetermined start time candidate (for example, "12:00") is displayed as being selected by default. may Alternatively, the start time at the time of the previous setting may be displayed as being selected by default.

FIG. 25 shows a state in which the user sets (selects) the start time to 11 o'clock by operating the cross key 74 and the "menu/enter" switch 75 from the state shown in FIG. 24(b). As shown in FIG. 25, in the setting screen 60I', the above-mentioned "solar mode" notation, "execute" notation, and "start" notation are displayed in the setting content display section 166 corresponding to the above-described operations. , and “11:00” notation indicating that the solar heating operation will start at 11:00 (instead of the “-” notation) are displayed.

In the state shown in FIG. 25, when the user operates the "Menu/Enter" switch 75, the display of the screen display section 60 returns to the standby screen 60A shown in FIG. At the time of this operation, the loudspeaker 73 may utter a voice such as "The setting has been made" or "The setting has been completed by September 21st."

It should be noted that, corresponding to the above operation, the setting to the effect that the solar heating operation is to be executed on each date up to September 21, and the setting to set the start time to 11:00 are performed in step S40 and step As described in S42, the surplus boiling-up execution unit 33A and the surplus boiling-up setting unit 33C receive the setting, and the settings are reflected in the above-described control after step S40 and step S42. That is, the surplus boiling-up execution unit 33A functions as execution setting receiving means in this embodiment, and the surplus boiling-up setting unit 33C functions as the second time setting receiving unit described in each claim. As a result, the excess boiling control unit 40 that executes the excess boiling process of step S300 functions as heating control means in the present embodiment.

Further, the screen transition (in other words, display of each setting screen) of the screen display section 60 shown in FIGS. 5 and 22 to 25 described above is performed under the control of the display control section 33B. That is, the display control section 33B functions as setting display control means in this embodiment.

<Timetable representing various processes>
The setting screens 60B′ to 60I′ displayed on the screen display unit 60 of the remote control device 50 are shown in the message of the message display unit 165, and the number of days (in this example, seven days which is one week) is displayed. FIG. 26(a) of the timetable shown in FIG. 26 shows an example of notation representing the final date after the lapse of minutes.

<Last date display>
As described above, the final date one week after the operation date (display date) is displayed in the message on the message display section 165 . Therefore, as shown in FIG. 26(a) as an example, on September 14 (Friday), the message of the message display section 165 is displayed as "until 9/21 (Friday)". However, after 23:00 on September 14th (Friday) before 0:00 am on September 15th (Saturday), the messages on the message display unit 165 will include the The final date after one week has passed, that is, "until 9/22 (Saturday)" is displayed. After that, until 23:00 on September 15 (Saturday), the display of "until 9/22 (Saturday)", which is the final date after one week has elapsed, continues. After 23:00 on September 15th (Saturday), the message "Until September 23rd (Sunday)" will be displayed in the message display section 165 in the same manner as described above. Until 23:00 on Sunday (Sunday), this display content is displayed. After that, the same display mode is repeated.

<Possibility of setting the end date>
On the other hand, as shown in FIG. 23(a), the cross key 74 is pressed when the cursor K is positioned "Yes" or "No" corresponding to the display of the last date in the message on the message display section 165. or the "menu/decision" switch 75 to set execution/non-execution of the solar heating operation (one-week operation in the solar mode) until the final date (the "execute", "not execute" selection) is shown in FIG. 26(b) of the timetable shown in FIG.

As described above with reference to FIG. 26(a), before 23:00 (which is the start time of the nighttime period) on Friday, September 14, the message on the message display unit 165 reads "9/ Until 21 (Fri)" is displayed. That is, on the setting screen 60E' shown in FIG. 23(a), as described above, September 14 (Saturday), which is the day following the operation date, is set as the starting date, and September 14, which is the operation date, is set as the starting date. It is possible to set execution/non-execution from (Friday) to September 21 (Friday), which is one week later. In this case, the operation date, September 14th (Friday), will be set as the starting date, and the above execution/non-execution will be performed from September 14th (Friday) to September 21st (Friday), one week later. It cannot be set (=in other words, it cannot be accepted by the surplus boiling-up execution unit 33A. The same applies hereinafter). As a result, it is not possible to set execution/non-execution for "9/14 minutes", which is the operation date.

Then, as described above, after 23:00 on September 14 (Friday), the message on the message display section 165 displays "Until 9/22 (Saturday)". That is, on the setting screen 60E', one week from September 14 (Friday), which is the day after the operation date, which has been possible until then, is set as the starting date for calculation. It becomes impossible to set execution/non-execution until September 21 (Friday) after the passage of time. Instead, from September 15 (Saturday), which is the next day of the operation date, to September 22 (Saturday), one week later, with September 16 (Sunday), the day after the operation date, as the starting date (In other words, the execution/non-execution setting cannot be performed for “9/15”, which is the day following the operation date). This state continues until before 23:00 on September 15 (Saturday).

After 23:00 on September 15 (Saturday), the message "until September 23 (Sunday)" is displayed in the message display section 165 as described above. Then, in the same manner as described above, with September 17 (Monday) two days after the operation date as the starting date, from September 16 (Sunday), which is the next day of the operation date, to September 23 (Sunday), one week later. , and this state will continue until before 23:00 on September 16 (Saturday). After that, the same display mode is repeated.

<Possibility of Cancellation of Settings>
Here, in the present embodiment, as in the first embodiment, the surplus boiling-up execution unit 33A accepts as described above for a plurality of days (for seven days, which is one week in this example) The setting of execution/non-execution of the solar heating operation (one-week solar mode operation) can be individually canceled by subsequent appropriate operations (detailed description and illustration are omitted) on the remote control device 5 ( = Functions as common cancellation acceptance means described in each claim). FIG. 26(c) of the timetable shown in FIG. 26 shows an example of whether or not the cancellation (hereinafter referred to as "setting cancellation" or "cancel" as appropriate) operation is possible.

As described above with reference to FIG. 26(b), before 23:00 on September 14th (Friday), September 15th (Saturday), which is the next day of the operation date, is set as the starting date for operation. It is possible to set execution/non-execution from the day of September 14 (Friday) to September 21 (Friday) one week later. In response to this, as shown in FIG. 26(c), before 23:00, the execution/non-execution setting for September 15 (Saturday) to September 21 (Friday) is cancelled. It can be done collectively.

In the example of FIG. 26(c), at 11:00 on September 14th (Friday), the setting for the execution from September 15th (Saturday) to September 21st (Friday) is made. , and before 23:00 on September 14th (Friday), this setting for execution from September 15th (Saturday) to September 21st (Friday) can be canceled. can.

After that, after 23:00 on September 14th (Friday) (which is the start time of the night period), the setting for execution from September 15th (Saturday) to September 21st (Friday) is canceled. be able to. In other words, the setting for September 15th to September 21st can be canceled even after the first date, September 15th. However, at this time, if the execution of the solar heating operation is selected on the day of the first date (here, September 15), the operation date of the solar heating operation on that day, that is, the operation day of the solar heating operation After the time when the sunlight-based boiling-up operation ends, the setting cannot be canceled (=in other words, it cannot be accepted by the surplus boiling-up execution unit 33A. The same applies hereinafter). In the illustrated example, the solar heating operation is started at 11:00 on September 15 (Saturday) as described above (that is, in this case, the sunlight is started at 13:00 two hours later, as described above). Since it is set to end the use boiling operation, after 13:00 on September 15th (Saturday), it will not be possible to cancel the above execution setting for "9/15", It is only possible to cancel the settings for the period after September 16 (Sunday), that is, from September 16 (Sunday) to September 21 (Friday).

After that, after 23:00 on September 15 (Saturday), the setting for execution from September 16 (Sunday) to September 21 (Friday) can be canceled in the same manner as described above. Then, as before, after 13:00 on September 16th (Sunday), it will not be possible to cancel the execution setting for "9/16", and after September 17th (Monday), that is, It is only possible to cancel the settings for the execution from September 17 (Monday) to September 21 (Friday). Thereafter, similar processing modes are repeated.

<Possibility of changing the start time of the solar heating operation>
Furthermore, in the present embodiment, as in the first embodiment, the surplus boiling-up setting unit 33C accepts the above for a plurality of days (for seven days, which is one week in this example). It is possible to change the batch setting of the start time of the sunlight-based boiling operation (one-week solar mode operation) by subsequent appropriate operations (detailed description and illustration are omitted) on the remote control device 5 (= each claim function as a means for receiving common changes described in the section). FIG. 26(d) of the timetable shown in FIG. 26 shows an example of whether or not the time change operation is possible.

As described above using FIG. It is possible to set execution/non-execution from September 14 (Friday), which is the day of the operation, to September 21 (Friday), one week later (if the execution is set, the start You can also set the time). Correspondingly, as shown in FIG. 26(d), before 23:00, September 15 (Saturday) to September 21 (Friday) are collectively set. The start time can be changed.

After that, after 23:00 on September 14th (Friday), the time can be changed from September 15th (Saturday) to September 21st (Friday). That is, the setting for September 15th can be changed even after the day of September 15th. However, at this time, the time cannot be changed on that day (here, September 15), that is, after the time when the solar heating operation starts on the operation day of the solar heating operation (= In other words, it is not accepted by the surplus boiling-up setting unit 33C. In the illustrated example, after 11:00 when the solar heating operation starts on September 15 (Saturday), the start time of 11:00 on September 15 (Saturday) is set for the day. can no longer be changed, and only the time changes from September 16 (Sunday) to September 21 (Friday) are possible.

After that, after 23:00 on September 15 (Saturday), the time can be changed from September 16 (Sunday) to September 21 (Friday) in the same manner as described above. However, after 11:00 on September 16th (Sunday), it will no longer be possible to change the start time of 11:00 on September 16th (Sunday) for the same day. (Monday) to September 21 (Friday). Thereafter, similar processing modes are repeated.

<Feature 2 of Second Embodiment - Transition of Standby Screens of Remote Controller>
Further, as in the first embodiment, another feature of the present embodiment is the transition of the display on the standby screen on the screen display unit 60 of the remote control device 50 when performing the solar heating operation. in the form. The details will be described in order below.

As described above with reference to FIG. 5 and the like, the standby screen 60A is displayed on the screen display section 60 of the remote controller 50 in the standby state. Then, when the execution of the solar heating operation (and its start time) is set as described above, different forms of display are performed according to the length of the period remaining until the execution. .

That is, as described above, execution or non-execution of the solar heating operation is selected for the consecutive days (in this example, one week with the day following the operation date as the starting date), and the solar light is selected for the consecutive days. When the execution of the light-based boiling operation is selected, as shown in FIG. Date is displayed. It should be noted that the display on the date display unit 171 is from the time when the solar light heating operation is set to the day before the most recent operating date (except for the display timing of the time display unit 172, which will be described later). , is done. On the standby screen 60P′ of FIG. 27(a), as described above, the solar heating operation starts at 11:00 on each date from September 15 (Saturday) to September 21 (Friday). It shows the display state at 18:00 on September 14 (Friday) when it is set to be displayed. With this setting, the operation date of the most recent solar heating operation will be September 15 (Saturday), so the date display unit 171 will display "9 /21" is displayed.

Further, in the present embodiment, when the date of the final day is displayed in the date display section 171 (that is, until the day before the most recent operation date), next to the date display section 171, the A surplus boil-up warning mark MK (in the shape of a sun mark, corresponding to an example of a warning display) for giving notice of execution is displayed.

After the state shown in FIG. 27(a), the screen display unit 60 displays a standby screen 60Q' shown in FIG. 27(b) on the latest operation day. In this standby screen 60Q′, instead of the date display portion 171 in the standby screen 60P′, a time display portion 172 indicating the start time of the solar light-based boiling operation on each operating day of the solar light-based boiling operation is displayed. be provided. More specifically, the display is switched from the date display unit 171 to the time display unit 172 from 0:00 a.m. in the night zone, not at 0:00 a.m. when the date is switched from the day before the driving day to the driving day. This is performed at a later fourth predetermined time (for example, 1:00; see FIG. 32(a), etc., which will be described later).

The example shown in FIG. 27(b) shows the display state at 1:00 on September 15 (Saturday). "11:00" is displayed on the time display unit 172 according to the setting that the solar light heating operation is started at 11:00. It should be noted that the display on the time display unit 172 is from after the operation day of the solar light heating operation (exactly after 1:00) until the solar light heating operation is actually started. takes place during

After the state shown in FIG. 27(b), when the start time of the solar heating operation on the operating day comes, the screen display unit 60 displays the standby screen 60R' shown in FIG. 28(a). In this standby screen 60R', instead of the date display portion 171 and the surplus boiling warning mark MK on the standby screen 60Q', a message "Adding hot water" indicating that the solar light heating operation is being executed is displayed. A message display MS (corresponding to an example of an execution display) is displayed. Note that this message display MS is performed while the solar heating operation is actually being executed (in the illustrated example, the state at 11:30 on September 15 (Saturday) is shown). .

After the state shown in FIG. 28(a), when the solar heating operation on the operating day ends, the standby screen 60P″ is displayed as shown in FIG. 28(b), similar to FIG. In the date display section 171, the date of the last day of the consecutive days for which execution is selected is displayed.In this example, the display state at 17:30 on Saturday, September 15th is displayed. Similarly, "until 9/21" is displayed on the date display portion 171, and the surplus boiling warning mark MK is displayed.

After the state shown in FIG. 28(b), as described above, at 1:00 on the most recent operating day (September 21 (Friday) in this example), the screen display unit 60 displays the standby state of FIG. A screen 60Q″ is displayed. In this standby screen 60Q″, similarly to the above, the time display portion 172 is provided instead of the date display portion 171 in the standby screen 60P″. In this example, September 16 ( It shows the display state at 1:00 on Sunday, September 15th (Saturday) to September 21st (Friday) at 11:00. In response to this, "11:00" is displayed on the time display section 172 again.

<Feature 3 of the second embodiment: Confirmation display that pops up in the standby screen at the time of operation>
Another feature of the present embodiment is that, as in the first embodiment, when the standby screen is displayed when performing the solar heating operation, a predetermined operation (details will be described later) is performed. It is in the confirmation display that pops up at the opportunity. The details will be described in order below.

That is, in the present embodiment, similarly to the above, at a predetermined timing before the solar heating operation is actually executed according to the user's setting, a display prompting reconfirmation of the setting for the execution is displayed on the screen. This is done on the display unit 60 . As in the first embodiment, in this example, the predetermined timing is after the first predetermined time (17:00 in this example) on the day before the driving day and at the start time of the nighttime zone (this For example, before 23:00) and some operation by the user (for example, an operation related to the execution of hot water supply, such as an operation of pressing the "automatic bath" switch 71 of the remote control device 50, an operation of opening the hot water tap 94, etc.) is performed (an example of the predetermined timing). It should be noted that it may be separately set to an appropriate timing (another example of the predetermined timing) other than this.

For example, FIG. 30(a) shows the state in which the standby screen 60P' is displayed at 18:00 on September 14 (Friday) as described above with reference to FIG. 27(a). When the user performs some operation in this state, as shown in FIG. 30(b), a pop-up screen PU is displayed so as to substantially cover the standby screen 60P'. In this example, the pop-up screen PU is displayed at 11:00 on September 15th (Saturday) to September 21st (Friday) in order to prompt reconfirmation of the execution settings. Corresponding to the setting for executing operation, a message M1 is displayed that reads, "Tomorrow (9/15) to 9/21, the solar mode is set to be used from 11:00."

When the user performs an appropriate operation on the remote control device 50 (in this example, presses the "menu/determine" switch 75) while the pop-up screen PU is displayed, the display on the screen display unit 60 is displayed. , as shown in FIG. 30(c), the setting screen 60I' (see FIG. 25) for setting the final date (9/21 in this example) included in the message M1 (that is, transition by one-touch operation). possible). In response to this, the pop-up screen PU shown in FIG. 30(b) displays a message M2 stating "[Menu/Determine] moves to the setting confirmation and change screen". Instead of the pop-up screen PU, a window screen that interrupts the standby screen 60P' may be used (the same applies hereinafter).

As another example, FIG. 31(a) shows a state in which a standby screen 60P'2 similar to the standby screen 60P' is displayed at 17:30 on September 15 (Saturday). (As described above, the solar heating operation is set to be performed from September 15 (Saturday) to September 21 (Friday) at 11:00). From this state, when the user performs some operation in the same manner as described above, the pop-up screen PU shown in FIG. 31(b) is displayed. In this pop-up screen PU, at this time, it is 17:30 on Saturday, September 15th, and in response to the completion of the solar heating operation for September 15th, A message M1 prompting confirmation, "Tomorrow (9/16) to 9/21, the solar mode is set to be used from 11:00." You will be moved to." message M2 is displayed. When the user performs the appropriate operation while the pop-up screen PU is displayed, the final date (9/21) included in the message M1 can be set as shown in FIG. The screen 60I' (see FIG. 25) is displayed.

27, 28, 29, 30, and 31 described above (in other words, the display of each standby screen) of the screen display section 60 is performed under the control of the display control section 33B. will be That is, the display control section 33B functions as standby display control means, confirmation display control means, and transition display control means in this embodiment.

<Timetable of standby screen display example>
FIG. 32(a) of the timetable shown in FIG. 32 shows an example of the contents displayed on the standby screens 60P', 60Q' and 60R' described with reference to FIGS.

In FIG. 32(a), in this example, at 11:00 on each date from September 15 (Saturday) to September 21 (Friday), the solar heating operation (in solar mode for one week operation) is set at 18:00 on September 14 (Friday). As described above, after the execution of the sunlight-based heating operation is set, the day before the most recent operation day and before 1:00 on the most recent operation day are displayed in the date display section 171. The date of the final day on which the boil-in-use heating operation is executed is displayed. As a result, from 18:00 on September 14 (Friday) to before 1:00 on September 15 (Saturday), "until 9/21" is displayed on the standby screen 60P' in the date display section 171. At the same time, the surplus boiling warning mark MK (in the shape of a sun mark) is displayed next to it as described above. Then, if any operation is performed by the user before 18:00 to 23:00 on September 14 (Friday), the message "Tomorrow (9/15) to 9/21 will start at 11:00 The pop-up screen PU including the message M1 of "The mode is set to use." is displayed.

After that, as described above, after 1:00 on the most recent operating day, the time display unit 172 displays the start time of the most recent solar heating operation, and the solar heating operation is actually executed. During this time, the message display MS is displayed. As a result, as shown in the figure, from 1:00 to 11:00 on September 15 (Saturday), in the standby screen 60Q', the time “11:00” is displayed on the display unit 172 . Then, as described above, after the start of the solar heating operation at 11:00 on September 15 (Saturday), the system waited until 13:00 when the solar heating operation ended. On the screen 60R', the message display MS of "adding hot water" is displayed. After that, after 13:00 on September 15 (Saturday), the final date "until 9/21" and the surplus boiling warning mark MK (sun mark shape) is displayed, and this display is displayed until 1:00 on Sunday, September 16th. If any operation is performed by the user between 17:00 and 23:00 on September 15 (Saturday), the message "Tomorrow (9/16) to 9/21, solar The pop-up screen PU including the message M1 of "The mode is set to use." is displayed.

After that, the display switching pattern on September 15 (Saturday) is September 16 (Sunday), September 17 (Monday), September 18 (Tuesday), September 19 (Wednesday), September 20th (Thursday) and repeat. Then, after 13:00 on September 20 (Thursday), the date of the final day "until 9/21" and the surplus boiling warning mark MK in the date display section 171 of the standby screen are displayed on September 21 (Friday). ) until 1:00.

Thereafter, from 1:00 to 11:00 on September 21 (Friday), similarly to the above, on the standby screen, in addition to the surplus boiling warning mark MK, "11:00" is displayed on the time display unit 172. be done. Then, during the period from the start of the last heating operation using sunlight at 11:00 on September 21 (Friday) until 13:00 when the heating operation using sunlight ends, the "hot water The message display MS "Increasing" is displayed. After that, the display of the date display portion 171, the time display portion 172, and the surplus boiling warning mark MK is no longer performed.

In FIG. 32(b), similar to FIG. 32(a), setting of execution of the solar heating operation at 11:00 on each date from September 15 (Saturday) to September 21 (Friday) After that, at 17:00 on September 15 (Saturday), the setting of the start time of 11:00 is changed to 13:00.

In this case, the process is the same as in FIG. 32(a) until the change is made. At 60P', "until 9/21" is displayed on the date display portion 171, and the surplus boiling warning mark MK (in the shape of a sun mark) is displayed next to it as described above. Also, if a user operation is performed before 23:00 on September 14 (Friday), the pop-up screen PU including the message M1 is displayed. After that, from 1:00 to 11:00 on September 15 (Saturday), in the standby screen 60Q', in addition to the surplus boiling warning mark MK (sun mark shape), "11 :00” is displayed. During the heating operation using sunlight from 11:00 to 13:00 on September 15 (Saturday), the standby screen 60R' displays the message MS of "Adding hot water".

After the change was made at 17:00 on September 15 (Saturday), in response to this change, after 1:00 on September 21 (Friday), which is the final date, In the standby screen, "13:00" is displayed in the time display section 172 in addition to the surplus boiling warning mark MK (sun mark shape) (see FIG. 32(b)). Also, in the same manner as described above, if the user performs some operation before 17:00 to 23:00 on each day, the popup screen PU including the message M1 is displayed. Then, at 13:00 on September 21 (Friday), the setting (reflecting the content of the change) to the effect that the solar heating operation will be started from 13:00 will be changed from step S40 and step S42. , are accepted by the excess boiling-up execution unit 33A and the excess boiling-up setting unit 33C, and the above-described control from step S40 and step S42 onward is executed based on these settings. From 13:00 when the heating operation using sunlight is started in this manner until 15:00 when the heating operation using sunlight is finished, the message display MS of "Adding hot water" is displayed on the standby screen.

Furthermore, although the details are omitted from the illustration, as in FIG. A case will be described where, after setting the execution, the setting of the start time of 11:00 is advanced to 10:00 at 10:00 on September 15 (Saturday).

In this case, as before, the display mode is the same as that of FIG. 32(a) until the change is made. Until now, in the standby screen 60P', the date display section 171 displays "until 9/21", and as described above, the surplus boiling warning mark MK (sun mark shape) is displayed next to it, If a user operation is performed before 23:00, the popup screen PU including the message M1 is displayed. After that, from 1:00 to 10:00 on September 15 (Saturday), in the standby screen 60Q', in addition to the surplus boiling warning mark MK (sun mark shape), "11 :00” is displayed. Then, at 11:00 on September 15 (Saturday), when the change to 10:00 is made, the 10:00 start time has already passed in response to this change. Therefore, the setting (reflecting the change content) to start the execution of the sunlight-based boiling operation from 10:00 is the same as the above-mentioned step S40 and step S42. This is accepted by the section 33A and the excess boiling-up setting section 33C, and control is executed based on this setting. That is, corresponding to the fact that the start time has already passed, the judgment of step S320 in FIG. boiling operation) is started. After the start of the solar heating operation at 11:00 in this manner, the "hot water The message display MS "Increasing" is displayed. The subsequent steps are the same as those in FIG. 32(a), and description thereof is omitted.

<Effects of Second Embodiment>
Also in this embodiment described above, the same effects as those of the first embodiment are obtained. In addition, the selection of execution/non-execution of the solar heating operation and the setting of the start time can be performed over a continuous period of a plurality of consecutive days (in the above example, one week of seven consecutive days), In addition, the selection of execution/non-execution and the setting of the start time of the solar heating operation can be performed collectively for all of the plurality of dates. As a result, the user can, for example, pre-register for a plurality of days (9 days in accordance with the above example) on a desired day (September 14 (Friday) in accordance with the above example) prior to the operation date of the solar heating operation. 7 days from September 15 (Saturday) to September 21 (Friday)) selection of execution / non-execution of the above-mentioned solar heating operation (see Fig. 23 (a), Fig. 23 (b), etc.) and The setting of the start time for the operation day (see FIG. 24(b), etc.) can be collectively performed. As a result, the user's convenience can be improved by eliminating the complexity of having to set the execution/non-execution of the solar heating operation and the setting of the operation start time every day.

A third embodiment of the present invention will be described with reference to FIGS. 33 to 35. FIG. In the present embodiment, the "solar mode" in the first embodiment and the "solar mode for one week" in the second embodiment can be switched between each other, and the "solar mode" and "solar mode 1" can be performed. This is an embodiment in the case of changing the setting to the other mode by an additional operation after the setting in one mode of "Weekly" is performed. The same reference numerals are assigned to the same parts as those of the first and second embodiments, and the description thereof will be omitted or simplified as appropriate.

The functional configuration of the control device 31 in this embodiment is the same as that shown in FIG. Also in this embodiment, as described above with reference to FIG. 5, the screen display unit 60 of the remote control device 50 is always in the standby state and the standby screen 60A is displayed. In this embodiment, when the "menu/determine" switch 75 is operated from this state, the display of the screen display unit 60 shifts to a main menu screen (not shown), and the "menu/determine" switch 75, etc. When an appropriate operation is performed, the setting screen 60J' shown in FIG. 33 is displayed.

This setting screen 60B' has an operation mode display section 161 and a message display section 162. FIG. In the operating mode display section 161, the "operating mode", the "solar mode", and the "solar mode for one week" are displayed so as to be selectable. From the state shown in FIG. 33, the user operates the cross key 74 downward to move the cursor K in the screen downward by one step, and then performs the above-described operation, thereby performing the operation described above. As described above, the solar mode can be selected, and the various settings and selections in the solar mode can be performed (detailed description is omitted). Similarly, from the state shown in FIG. 33, the user operates the cross key 74 downward twice to move the cursor K in the screen downward by two steps, and thereafter performs the above-described operation, whereby the As described in the second embodiment, one week in the solar mode can be selected, and the various settings and selections for the one week in the solar mode can be performed (detailed description is omitted).

In the present embodiment, as described above, the execution/non-execution setting and the start time setting for the one-week solar mode can be performed by appropriate operations (detailed description and illustration are omitted) on the remote control device 5 thereafter. , the setting of execution/non-execution and the setting of the start time according to the solar mode (and vice versa, see FIG. 35 described later). An example of the change operation and the accompanying display behavior on the standby screen is shown in the timetable shown in FIG.

In FIG. 34, in this example, same as above, the heating operation using solar light (operation in solar mode for one week) is performed at 11:00 on each date from September 15 (Saturday) to September 21 (Friday). is set at 18:00 on September 14 (Friday). After that, as in FIG. 32(a), from 20:00 on September 14 (Friday) to before 1:00 on September 15 (Saturday), the date display section 171 of the standby screen displays "9/ 21” and the surplus boiling warning mark MK are displayed. Until 21st, the solar mode is set to be used from 11:00." The pop-up screen PU including the message M1 is displayed, and before 1:00 to 11:00 on Saturday, September 15th. Until then, "11:00" is displayed on the time display section 172 in addition to the surplus boiling warning mark MK. Then, during the solar heating operation from 11:00 to 13:00 on September 15 (Saturday), the message display MS "Adding hot water" is displayed, and on September 15 (Saturday) at 13:00 After :00, "until 9/21" on the date display portion 171 and the surplus boiling warning mark MK are displayed in the same manner as described above.

In this display state, in this example, at 17:00 on September 15 (Saturday), the switching operation from the one week solar mode to the solar mode is performed, and on September 16 (Sunday) at 13:00. The setting is made so that the heating operation using sunlight is started at 00 and that the heating operation using sunlight is started at 14:00 on September 17 (Monday). In response to this change, from 17:00 on September 15 (Saturday) to before 1:00 on September 16 (Sunday), "9/16" is displayed in the date display section 171 of the standby screen. As described above, the surplus boiling warning mark MK (sun mark shape) is displayed beside it as described above, and before 17:00 to 23:00 on Saturday, September 15, the user When the operation is performed, the pop-up screen PU including the message M1 of "The solar mode is set to be used from 13:00 tomorrow (9/16)" is displayed.

After that, in response to the above change, from 1:00 to 13:00 on September 16 (Sunday), in addition to the surplus boiling warning mark MK (sun mark shape) on the standby screen, the time display “13:00” is displayed in section 172 . After that, at 13:00 on September 16th (Sunday), the above-mentioned " The message display MS "Adding hot water" is displayed.

After that, after 15:00 on September 16 (Sunday), "9/17" in the date display section 171 of the standby screen and the surplus boiling warning mark MK are displayed in the same manner as described above, and September 17 (Monday) ) is displayed until 1:00. If the user operates before 17:00 to 23:00 on September 16 (Sunday), the message "Tomorrow (September 17), the solar mode is set to be used from 14:00. is displayed. After 1:00 on September 17 (Monday), "14:00" and the surplus boiling warning mark MK (in the shape of a sun mark) are displayed in the time display section 172 of the standby screen in the same manner as described above. After that, from 14:00 to 16:00 on September 17 (Monday), the message display MS "Adding hot water" is displayed on the standby screen.

Further, in the present embodiment, the setting of the execution/non-execution of the solar mode and the setting of the start time can be performed in the solar mode 1 by appropriate operations (detailed description and illustration are omitted) on the remote control device 5 thereafter. It is also possible to change the execution/non-execution setting and the start time setting according to the week. An example of the change operation and the accompanying display behavior on the standby screen is shown in the timetable shown in FIG.

In FIG. 35, in this example, the solar heating operation was started at 11:00 on September 15th (Saturday), and the solar heating operation was started at 14:00 on September 16th (Sunday). A setting to the effect that the upper operation will start is made at 18:00 on September 14 (Friday). After that, as in FIG. 32(a), from 18:00 on September 14 (Friday) to before 1:00 on September 15 (Saturday), the date display section 171 of the standby screen displays "9/ 15” and the surplus boiling warning mark MK will be displayed. The pop-up screen PU including the message M1 is displayed, and the surplus boiling water is set to be used from 1:00 to 11:00 on September 15 (Saturday). "11:00" is displayed on the time display portion 172 in addition to the notice mark MK. Then, during the solar heating operation from 11:00 to 13:00 on September 15 (Saturday), the message display MS "Adding hot water" is displayed, and on September 15 (Saturday) at 13:00 After :00, "9/16" on the date display section 171 and the surplus boiling warning mark MK are displayed in the same manner as described above. The pop-up screen PU including the message M1 "Tomorrow (9/16), the solar mode is set to be used from 14:00" is displayed.

In this display state, in this example, at 18:00 on September 15 (Saturday), the operation of switching from the solar mode to the one-week solar mode is performed, and from September 16 (Sunday) to September It is set to perform the above-mentioned heating operation using sunlight (operation in solar mode for one week) at 11:00 on each date on the 22nd (Saturday). In response to this change, from 18:00 on September 15 (Saturday) to before 1:00 on September 16 (Sunday), the date display section 171 of the standby screen will display "until 9/22". As described above, the surplus boiling warning mark MK (in the shape of a sun mark) is displayed next to it as described above, and the user operation is performed before 23:00 on September 15 (Saturday). When prompted, the pop-up screen PU including the message M1 stating "Tomorrow (9/16) to 9/22, the solar mode is set to be used from 11:00" is displayed.

After that, in response to the above change, from 1:00 to 11:00 on Sunday, September 16, in addition to the surplus boiling warning mark MK (sun mark shape) on the standby screen, the time display “11:00” is displayed in section 172 . After that, on September 16th (Sunday) at 11:00, after the start of the heating operation using sunlight until 13:00 when the heating operation using sunlight ends, the above " The message display MS "Adding hot water" is displayed.

After that, after 13:00 on September 16 (Sunday), "until 9/22" and the surplus boiling warning mark MK are displayed in the date display section 171 of the standby screen in the same manner as described above, and September 17 ( This display is displayed until 1:00 on Monday). Also, if the user operates before 17:00 to 23:00 on September 16 (Saturday), the message "Tomorrow (9/17) to 9/22, the solar mode will be used from 11:00 The pop-up screen PU including the message M1 of "It is set." is displayed. Then, after 1:00 on September 17 (Monday), "11:00" and the surplus boiling warning mark MK (in the shape of a sun mark) are displayed in the time display section 172 of the standby screen in the same manner as described above. After that, from 11:00 to 13:00 on September 17 (Monday), the message display MS of "Adding hot water" is displayed on the standby screen. After that, the display is performed in the same switching mode until September 18 (Tuesday), September 19 (Wednesday), September 20 (Thursday), and September 21 (Friday).

After 1:00 on September 22nd (Saturday), "11:00" and the surplus boiling warning mark MK (sun mark shape) are displayed in the time display section 172 of the standby screen in the same manner as described above. From 11:00 to 13:00 on the 22nd (Saturday) of the month, the message display MS "Adding hot water" is displayed on the standby screen. After that, the display of the date display portion 171, the time display portion 172, and the surplus boiling warning mark MK is no longer performed.

The present invention is not limited to the above embodiments, but can be applied without changing the gist thereof. For example, instead of the heat pump device 19, an electric heater type heating means may be used. be.
For example, when the above setting is completed, the total expected power generation amount (approximate predicted value obtained by a known method) for a plurality of days (two days in this example) is displayed on the setting screen 60M of FIG. 15(b). You can do it. Alternatively, the same display may be performed on the standby screens 60P to 60R shown in FIGS. Similarly, when the above setting is completed, the setting screen 60I′ of FIG. 25 displays the total expected power generation amount (approximate predicted value obtained by a known method) for a plurality of days (in this example, for seven consecutive days). You can make it work. Alternatively, similar displays may be made on the standby screens 60P' to 60R' and 60P'' to 60Q'' shown in FIGS.
In addition, instead of displaying two consecutive days such as "September 15 (Saturday), September 16 (Sunday)" on the setting screen 60D of FIG. The two days may be specified by user input on a calendar screen prepared in advance (an appropriate input method other than the calendar screen may be used). Similarly, instead of displaying the final date as "until 9/21 (Friday)" on the setting screen 60E' of FIG. It may be specified by user input (an appropriate input method other than the calendar screen may be used).
Furthermore, at that time, the number of days to be specified on the calendar screen (or the other input method) can be arbitrarily input by the user, and when two consecutive days are specified, the "solar mode" is specified, and when seven consecutive days are specified It automatically switches to the "solar mode for one week", and when it switches to the "solar mode", the execution/non-execution of the solar heating operation and the start time are individually set for the two days as described above. When the setting is changed to the "solar mode for one week", it is possible to collectively set the execution/non-execution of the solar heating operation and the start time for the seven days as described above. may In that case, the threshold for segmentation may be "2 days", such as whether the designation is "within 2 days" or "more than 2 days (i.e., 3 days or more)" as described above. However, it may be any number of days greater than two days. Also, the number of days to be collectively set may not be 7 days as in the case of "1 week in solar mode", but may be any other number of days, 2 to 6 days, or 8 days or more.
In all of the modifications described above, the same effects as those of the first embodiment or the second embodiment are obtained.

In the above description, the arrows shown in each figure such as FIG. 4 indicate an example of signal flow, and do not limit the direction of signal flow.

Moreover, the flowcharts shown in FIGS. 6 to 9 do not limit the present invention to the procedures shown in the above flows, and additions, deletions, or changes in the order of procedures can be performed without departing from the gist and technical idea of the invention. You may

1 hot water storage type water heater 3 solar power generation device 10 hot water storage tank 19 heat pump device (heating means)
33A Surplus boiling-up execution unit (execution setting reception means)
33B Display control unit (setting display control means, standby display control means, confirmation display control means, transition display control means)
33C Surplus boiling-up setting unit (first time setting reception means, second time setting reception means)
40 Surplus boiling control unit (heating control means)
50 Remote control device 60 Screen display unit (display means)
60B~M setting screens 60B'~I' setting screens 60A, P~R standby screen 60P2 standby screens 60P'~R' standby screen 60P'2 standby screens 60P'', Q'' standby screens M1, M2 message PU pop-up screen

Claims (5)

A hot water storage type water heater comprising a hot water storage tank for storing hot water, heating means for heating the hot water, and display means for displaying a desired display, wherein the heating means performs a boiling operation to heat the hot water in the hot water storage tank. ,
execution setting receiving means for receiving settings for execution of the solar heating operation using power from the photovoltaic power generation device during the daytime period excluding a predetermined nighttime period on a specific date;
heating control means for controlling the heating means so as to perform the solar heating operation on the specific date according to the execution setting received by the execution setting receiving means;
Confirmation prompting reconfirmation of the execution setting at a predetermined timing after the execution setting in the execution setting receiving means and before the solar heating operation is executed on the specific date according to the execution setting. confirmation display control means for controlling the display means to display;
A hot water storage type water heater characterized by having: The predetermined timing is
2. The hot water storage type water heater according to claim 1, characterized in that the timing is after a first predetermined time on the day before the day of operation on which the solar heating operation is to be performed. The predetermined timing is
3. The storage-type water heater according to claim 2, wherein the timing is after the first predetermined time and before the start time of the night period on the day before the operating day. The predetermined timing is
4. The hot water storage type water heater according to claim 2, wherein the time is after the first predetermined time and at a timing when an appropriate operation related to the hot water storage type hot water heater is executed. setting display control means for controlling the display means to display a predetermined setting screen different from the standby screen displayed in the standby state;
transition display control means for controlling the display means to transition to the setting screen by an appropriate operation from the state where the confirmation display is being performed;
further having
The execution setting reception means
5. The method of claim 1, wherein the setting for the execution of the solar heating operation is accepted in a state in which the setting screen is displayed on the display means under the control of the setting display control means. The hot water storage type hot water supply machine according to any one of the items.

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