Bath hot water system

Abstract

To provide a bath hot water system which has no need of constructing new piping, which makes scattering of anti-fungal liquid possible in a bathroom, and which has high convenience for a user.SOLUTION: A bath hot water system of the present disclosure includes: a bath water circulation path which has a circulation pump for circulating bath water supplied to a bathtub; a storage container which is connected to the bath water circulation path and which stores anti-fungal liquid for preventing propagation of mold in a bathroom; a discharge opening which is installed in the bathtub for the purpose of scattering in the bathroom the anti-fungal liquid stored in the storage container through the bath water circulation path; and a control device for the purpose of controlling the scattering in the bathroom the anti-fungal liquid stored in the storage container.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present disclosure relates to a bath hot water supply system. [Background technology]

[0002] The following Patent Document 1 discloses an ion spray device that includes a water supply means for supplying water through piping from outside the device, a metal ion supply means for supplying metal ions to the water supplied from the water supply means, and a spray means for spraying water containing metal ions onto an object, and that uses the metal ions to suppress the growth of microorganisms on the surface of the object. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2010-063965 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, the conventional method described in Patent Document 1 requires that a device for spraying a liquid to inhibit mold or slime (hereinafter referred to as anti-mold liquid) be installed in the bathroom or be equipped with a bathroom dryer, etc.

[0005] The present disclosure has been made to solve the above-mentioned problems. The purpose of the present disclosure is to provide a bath hot water supply system that is convenient for users and can spray anti-mold liquid into the bathroom without the need to install new piping. [Means for solving the problem]

[0006] The bath hot water supply system of the present disclosure comprises a bath water circulation path equipped with a circulation pump for circulating bath water supplied to a bathtub, a storage container connected to the bath water circulation path and storing an anti-mold liquid for preventing mold growth in the bathroom, an outlet provided in the bathtub for spraying the anti-mold liquid stored in the storage container into the bathroom through the bath water circulation path, and a control device for controlling the spraying of the anti-mold liquid stored in the storage container into the bathroom. Effect of the Invention

[0007] According to the present disclosure, it is possible to provide a bath hot water supply system that is highly convenient for users, by spraying anti-mold liquid into the bathroom without the need to install new piping. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is a diagram showing a bath hot water supply system according to a first embodiment. [Diagram 2] 4 is a flowchart for explaining the operation of the bath hot water supply system of the first embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, the embodiments will be described with reference to the drawings. The same reference numerals are used to designate common elements in each drawing, and duplicated descriptions are simplified or omitted. The present disclosure may include any combination of possible configurations among the configurations described in the following embodiments. In this specification, the term "water" may include liquid water in general, from cold water to hot water, regardless of its temperature.

[0010] Embodiment 1 FIG. 1 is a diagram showing a bath hot water supply system according to the first embodiment. The bath hot water supply system 100 of the present embodiment shown in FIG. 1 includes a tank unit 101 and an apparatus provided in a bathroom 102. The bath hot water supply system 100 of the present embodiment has a storage type hot water heater, but in the present disclosure, the system may have a hot water heater other than a storage type hot water heater, for example, an instantaneous hot water heater. The tank unit 101 includes a hot water storage tank 2, a bath water circulation path 3, a control device 10, and the like. The bath water circulation path 3 includes a first flow path 4, a second flow path 5, a circulation pump 6, a heat exchanger 7, a bathtub adapter 8, an anti-mold liquid / rinse water outlet 9, and a storage container 15. The bath water circulation path 3 is connected to a bathtub 1. The hot water supply path 19 connects the hot water storage tank 2 and the bath water circulation path 3.

[0011] Bathroom 102 comprises bathtub 1, remote control device 11, bathroom dryer 31, ventilation device (not shown), etc. Bathtub adapter 8 is attached to bathtub 1. Heat exchanger 7 can heat water. First flow path 4 connects heat exchanger 7 and bathtub adapter 8. Second flow path 5 connects heat exchanger 7 and bathtub adapter 8. Circulation pump 6 is connected midway through second flow path 5. Heat exchanger 7 may be an electric heater. Heat exchanger 7 may heat water with heat from combustion of fuel. Heat exchanger 7 may heat water by heat exchange with high-temperature water supplied from hot water storage tank 2.

[0012] A bathtub plug 32 is provided at the bottom of the bathtub 1. The bathtub plug 32 is connected to a bath water drain path 33. When the bathtub plug 32 is opened, the bath water in the bathtub 1 is drained from the bathtub plug 32.

[0013] The remote control device 11 is equipped with a remote control operation unit 12, a display 13, and a human presence sensor 14. The remote control operation unit 12 accepts user operations. The remote control operation unit 12 may be equipped with various buttons or keys. The display 13 is capable of displaying information relating to the status of the bath hot water supply system 100. The display 13 corresponds to a notification means for notifying the operating status of the bath hot water supply system 100.

[0014] The control device 10 controls the operation of the bath hot water supply system 100. In the illustrated configuration, the control device 10 is mounted on the tank unit 101. The control device 10 is electrically connected to and capable of communicating with the remote control device 11. The control device 10 is electrically connected to and capable of communicating with the bathroom dryer 31 via the interface unit 30. The control device 10 may be installed in a location other than the tank unit 101. For example, the control device 10 may be mounted on the remote control device 11.

[0015] The storage container 15 can store anti-mold liquid for preventing the growth of mold in the bathroom 102. The bottom of the storage container 15 is connected to a storage container solenoid valve 17 provided in the first flow path 4 of the bath water circulation path 3. The storage container 15 may store multiple types of anti-mold liquid. The storage container 15 is provided with a remaining amount detection sensor 16a. The remaining amount detection sensor 16a is electrically connected to the control device 10. The remaining amount detection sensor 16a measures the remaining amount of anti-mold liquid in the storage container 15 and enables the remaining amount information to be transmitted to the control device 10. The remaining amount information is transmitted to the remote control device 11 which is electrically connected to the control device 10. The user can check the remaining amount information through the display 13 of the remote control device 11.

[0016] The storage container 15 is equipped with a component sensor 16b. The component sensor 16b analyzes the components of the antifungal liquid contained in the storage container 15 and can determine whether the liquid contains any components that may cause deterioration of the bath water circulation path 3. Components that may cause deterioration refer to components that may cause metal corrosion or deterioration of resin parts.

[0017] The antifungal liquid is sprayed from the antifungal liquid / rinse water outlet 9 attached to the bathtub adapter 8. The antifungal liquid / rinse water outlet 9 protrudes from the bathtub adapter 8 toward the inside of the bathtub 1. The antifungal liquid contains a volatile liquid that vaporizes when mixed with water. The bath hot water supply system operates as follows. When spraying the antifungal liquid, the control device 10 opens the storage container solenoid valve 17 so that the antifungal liquid contained in the storage container 15 can flow into the bath water circulation path 3, and sprays the antifungal liquid into the bathtub 1. After that, the control device 10 closes the storage container solenoid valve 17 and flows only water into the bath water circulation path 3, so that the antifungal liquid and water are mixed and vaporized, and sprayed throughout the bathroom 102. This allows the antifungal liquid to be automatically sprayed into the bathroom 102. The control device 10 may perform control so that a mixture of the antifungal liquid and the water to be supplied to the bath water circulation path 3 is discharged from the antifungal liquid / rinsing water discharge port 9 into the bathtub 1.

[0018] One end of the hot water supply flow path 19 is connected to the hot water storage tank 2. The other end of the hot water supply flow path 19 is connected to the second flow path 5 between the circulation pump 6 and the heat exchanger 7. A bath solenoid valve 18 is installed in the hot water supply flow path 19. A mixer (not shown) may be provided in the hot water supply flow path 19 to adjust the hot water temperature by mixing low-temperature water supplied from a water supply pipe (not shown). When filling the bathtub 1 with water, the following occurs. The bath solenoid valve 18 is opened. Hot water supplied by the hot water storage tank 2 is sent through the hot water supply flow path 19 and the bath water circulation path 3, and is poured into the bathtub 1 through the bathtub adapter 8.

[0019] 2 is a flow chart for explaining the operation of the bath hot water supply system of the embodiment 1. The operation of the antifungal liquid spraying function in this embodiment will be explained below.

[0020] In step S1, it is confirmed whether or not to spray the anti-fungal liquid. If spraying is to be performed, the user operates remote control device 11 to start the process, and the process proceeds to step S2. If the user does not perform any particular operation, the process waits in step S1 without spraying, but a notification is issued on display 13 of remote control device 11 at predetermined intervals to encourage the user to spray the anti-fungal liquid so that the user does not forget to use the anti-fungal liquid. This operation is merely a notification, and is controlled to prevent the anti-fungal liquid from being sprayed in bathroom 102 at a timing not intended by the user, and the user from being accidentally exposed to the anti-fungal liquid.

[0021] In step S2, the human presence sensor 14 provided in the remote control device 11 is used to confirm whether or not there is a person in the bathroom 102. If there is a person in the bathroom 102, the process waits in step S2, and if it is confirmed that there is no person in the bathroom 102, the process proceeds to step S3. Thus, in this embodiment, when the human presence sensor 14 determines that there is a person in the bathroom 102, the control device 10 prohibits the spraying of the anti-fungal liquid from the anti-fungal liquid / rinse water outlet 9. This reliably prevents the user from being accidentally sprayed with the anti-fungal liquid.

[0022] In step S3, water level sensor 20 capable of detecting the water level in bathtub 1 is used to check whether water is stored in bathtub 1. If water is stored in bathtub 1, the process returns to step S2, and if it is confirmed that no water is stored in bathtub 1, the process proceeds to step S4. Thus, in this embodiment, when water level sensor 20 determines that water remains in bathtub 1, control device 10 prohibits spraying of anti-mold liquid from anti-mold liquid / rinse water outlet 9.

[0023] In step S4, it is confirmed whether or not there is a malfunction in the remaining amount detection sensor 16a used to confirm the remaining amount of antifungal liquid in the storage container 15, and the component sensor 16b used for component analysis. A malfunction here refers to an event in which the remaining amount detection sensor 16a is unable to confirm the remaining amount of antifungal liquid in the storage container 15, or an event in which the component sensor 16b is unable to analyze the components of the antifungal liquid in the storage container 15. If there is a malfunction in either the remaining amount detection sensor 16a or the component sensor 16b, the process proceeds to step S5. If it is confirmed that there is no malfunction, the process proceeds to step S6.

[0024] In step S5, a guidance message is displayed on the display 13 of the remote control device 11 to the effect that a malfunction has occurred in the remaining amount detection sensor 16a or the component sensor 16b, and that it is recommended to replace the malfunctioning part. This guidance message allows the user to recognize that a part is malfunctioning, and urges the user to repair the part. When the guidance message is displayed, the process ends. Thus, in this embodiment, if a malfunction occurs in any of the multiple sensors related to the spraying of the anti-mold liquid, the control device 10 prohibits the spraying of the anti-mold liquid and causes the notification means to notify the user of the occurrence of the malfunction. This makes it possible to reliably prevent the spraying of the anti-mold liquid from being performed in an inappropriate manner.

[0025] In step S6, the remaining amount detection sensor 16a is used to check whether or not there is a sufficient amount of antifungal liquid remaining in the storage container 15 for spraying. If it is confirmed that there is a sufficient amount remaining, the process proceeds to step S7. If it is determined that there is not enough remaining amount, the process proceeds to step S8.

[0026] In step S7, the control device 10 uses the component sensor 16b to analyze the components of the anti-mold liquid stored in the storage container 15. That is, it is determined whether the anti-mold liquid contains any components that will cause deterioration of the metal or resin parts that make up the bath water circulation path 3. If the analysis determines that the anti-mold liquid contains any components that will cause deterioration of the bath water circulation path 3, the process proceeds to step S8. If the analysis determines that the anti-mold liquid does not contain any components that will cause deterioration of the bath water circulation path 3, the process proceeds to step S9.

[0027] In step S8, a guidance is displayed on the display 13 of the remote control device 11 to inform the user that the antifungal liquid stored in the storage container 15 is not sufficient or contains a component that causes deterioration of the bath water circulation path 3, as determined in steps S6 and S7, and that refilling or replacement is required. This guidance display allows the user to recognize that the antifungal liquid cannot be sprayed, and encourages the user to refill or replace the antifungal liquid by himself. When the guidance display is completed, the process ends. Thus, in this embodiment, when the remaining amount detection sensor 16a detects that the amount of antifungal liquid is less than a predetermined amount, the control device 10 causes the notification means to notify the user that the antifungal liquid needs to be refilled. This improves convenience. Also, when the analysis result of the component sensor 16b detects that the antifungal liquid is unsuitable for use, the control device 10 causes the notification means to notify the user that an unsuitable antifungal liquid is being used. This reliably prevents the use of an inappropriate antifungal liquid.

[0028] In step S9, the bath hot water supply system 100 of the present disclosure is checked through the control device 10 and the interface unit 30 to see if it is linked to the bathroom dryer 31 or the ventilation device provided in the bathroom 102. In this embodiment, the control device 10 is provided with an operation instruction means for instructing the bathroom dryer 31 or the ventilation device to operate via the interface unit 30. In this way, if the bathroom dryer 31 or the ventilation device is in a state where it can operate in linkage with the bath hot water supply system 100, the process proceeds to step S10. In step S10, the operation of the bathroom dryer 31 or the ventilation device is stopped so that the sprayed anti-fungal liquid is sufficiently sprayed in the bathroom 102. If the bath hot water supply system 100 is not linked to the bathroom dryer 31 or the ventilation device, or if the bathroom dryer 31 or the ventilation device is not operating, the process proceeds to step S11.

[0029] In step S11, the antifungal liquid stored in the storage container 15 is discharged into the bathtub 1 from the antifungal liquid / rinse water discharge port 9 by controlling the storage container solenoid valve 17. After that, only water is taken out from the bath water circulation path 3 and discharged into the bathtub 1, so that it is mixed with the antifungal liquid discharged earlier, vaporized, and sprayed into the bathroom 102. The user can set the amount of the antifungal liquid to be sprayed as desired by operating the remote control device 11. The control device 10 may increase the amount of the antifungal liquid to be sprayed as the outside air temperature measured by the outside air temperature sensor 34 provided in the bath hot water supply system 100 increases. In addition, the control device 10 having a calendar function may adjust the amount of the antifungal liquid to be sprayed so that it is more in seasons with more mold than in seasons with less mold. This allows the amount of the antifungal liquid to be adjusted to a more appropriate amount. After a predetermined amount of the antifungal liquid has been sprayed, proceed to step S12.

[0030] In step S12, only water is taken out and discharged from the bath water circulation path 3, and rinsing water is sprayed into the bathtub 1. This operation is performed to ensure that no antifungal liquid remains inside the bathtub 1 after the antifungal liquid has been sprayed into the bathroom 102. This operation also makes it possible to wash away any antifungal liquid remaining in the bath water circulation path 3. When spraying of the antifungal liquid and rinsing water is complete, a guidance message to the effect that spraying has been completed is displayed on the display 13 of the remote control device 11, and the process proceeds to step S13.

[0031] In step S13, bathroom dryer 31 or the ventilation system is operated a predetermined time after the anti-mold liquid and rinsing water have been sprayed. This allows the vaporized anti-mold liquid to be thoroughly sprayed throughout bathroom 102, enhancing its effectiveness, and once the spray has achieved its mold-suppressing effect, the vaporized anti-mold liquid can be exhausted outside bathroom 102 by ventilation, preventing users from inhaling the gas. When operation is complete, the process ends.

[0032] As described above, in the first embodiment, by providing the storage container 15 for the antifungal liquid in the tank unit 101, the antifungal liquid can be sprayed in the bathroom 102 using the control device 10 and remote control device 11 in the bath hot water supply system 100. Furthermore, by providing the remaining amount detection sensor 16a and the component sensor 16b in the storage container 15, the user can check feedback on whether or not to add the liquid from the remote control device 11. In the above example, the case where automatic spraying is performed has been described, but the user can also operate the remote control device 11 to spray the antifungal liquid at any timing.

[0033] Various aspects of the present disclosure are summarized below as appendices.

[0034] (Appendix 1) A bath water circulation path including a circulation pump for circulating the bath water supplied to the bathtub; A storage container connected to the bath water circulation path and storing an anti-mold liquid for preventing the growth of mold in the bathroom; a discharge port provided in the bathtub for dispersing the antifungal liquid stored in the storage container into the bathroom through the bath water circulation path; a control device for controlling the spraying of the antifungal liquid stored in the storage container into the bathroom; A bath hot water system equipped with: (Appendix 2) A human presence sensor is provided to determine whether or not a person is present in the bathroom. The bath hot water supply system according to claim 1, wherein the control device prohibits the spraying of the anti-mold liquid from the outlet when the human presence sensor determines that a person is present in the bathroom. (Appendix 3) A water level sensor is provided for detecting the water level of the bathtub. A bath hot water supply system as described in Appendix 1 or Appendix 2, wherein the control device prohibits the spraying of the anti-mold liquid from the outlet when the water level sensor determines that water remains in the bathtub. (Appendix 4) a remaining amount sensor capable of measuring the remaining amount of the antifungal liquid stored in the storage container; A bath hot water supply system as described in any one of Appendix 1 to Appendix 3, wherein the control device prohibits spraying of the anti-mold liquid from the outlet when the remaining amount sensor measures the remaining amount of the anti-mold liquid stored in the storage container and determines that the amount is insufficient to spray into the bathroom. (Appendix 5) a component sensor capable of measuring the components of the antifungal solution stored in the storage container; A bath hot water supply system as described in any one of Appendix 1 to Appendix 4, wherein the control device prohibits the spraying of the anti-mold liquid from the outlet if the component sensor detects in the anti-mold liquid stored in the storage container a component that causes deterioration of metal or plastic parts that make up the bath water circulation path. (Appendix 6) A plurality of sensors related to the spraying of the antifungal liquid; A notification means; Equipped with A bath hot water supply system as described in any one of Appendix 1 to Appendix 5, wherein the control device prohibits the spraying of the anti-mold liquid if a malfunction occurs in any of the multiple sensors, and causes the notification means to notify the occurrence of the malfunction. (Appendix 7) Equipped with a notification means, The bath hot water supply system described in Appendix 4, wherein the control device, when the remaining amount sensor detects that the amount of the anti-mold liquid is less than a predetermined amount, causes the notification means to issue a notification that the anti-mold liquid needs to be replenished. (Appendix 8) Equipped with a notification means, The bath hot water supply system described in Appendix 5, wherein when the control device detects that the anti-mold liquid is unsuitable for use based on the analysis results of the component sensor, it causes the notification means to issue a notification that an unsuitable anti-mold liquid is being used. (Appendix 9) The antifungal liquid contains a volatile liquid that evaporates when mixed with water, A bath hot water supply system described in any one of Appendix 1 to Appendix 8, wherein the control device discharges a mixture of the anti-mold liquid and water supplied to the bath water circulation path into the bathtub from the outlet. (Appendix 10) A bath hot water supply system as described in any one of Appendix 1 to Appendix 9, wherein the control device, after spraying the anti-mold liquid into the bathroom, flows water into the bath water circulation path and discharges any anti-mold liquid remaining in the bath water circulation path toward the bathtub. (Appendix 11) The control device includes an operation instruction means for instructing an operation of a ventilation device provided in the bathroom, A bath hot water supply system as described in any one of Appendix 1 to Appendix 10, wherein the control device stops the operation of the ventilation device using the operation instruction means before spraying the anti-mold liquid into the bathroom, and operates the ventilation device using the operation instruction means after spraying into the bathroom has been completed. (Appendix 12) A notification means for notifying an operating state of the bath hot water supply system is provided, A bath hot water supply system as described in any one of appendix 1 to appendix 11, wherein the control device notifies a user of the spraying of the anti-mold liquid at predetermined intervals by the notification means. (Appendix 13) An outside air temperature sensor for detecting an outside air temperature; Calendar function and Equipped with A bath hot water system as described in any one of Appendix 1 to Appendix 12, wherein the control device adjusts the amount of the anti-mold liquid used at one time so that it is greater when the detection value of the outside air temperature sensor is high than when it is low, and also adjusts the amount of the anti-mold liquid used at one time using the calendar function so that it is greater in seasons when there is a lot of mold than in seasons when there is less mold. [Explanation of symbols]

[0035] 1 bathtub, 2 hot water storage tank, 3 bath water circulation path, 4 first flow path, 5 second flow path, 6 circulation pump, 7 heat exchanger, 8 bathtub adapter, 9 anti-mold liquid / rinse water outlet, 10 control device, 11 remote control device, 12 remote control operation section, 13 display, 14 human presence sensor, 15 storage container, 16a remaining amount detection sensor, 16b component sensor, 17 storage container solenoid valve, 18 bath solenoid valve, 19 hot water supply path, 20 water level sensor, 30 interface unit, 31 bathroom dryer, 32 bathtub stopper, 33 bath water discharge path, 34 outside air temperature sensor, 100 hot water supply system, 101 tank unit, 102 bathroom

Claims

1. A bath water circulation path including a circulation pump for circulating the bath water supplied to the bathtub; A storage container connected to the bath water circulation path and storing an anti-mold liquid for preventing the growth of mold in the bathroom; a discharge port provided in the bathtub for dispersing the antifungal liquid stored in the storage container into the bathroom through the bath water circulation path; a control device for controlling the spraying of the antifungal liquid stored in the storage container into the bathroom; A bath hot water system equipped with:

2. A human presence sensor is provided to determine whether or not a person is present in the bathroom.

2. The bath hot water supply system according to claim 1, wherein the control device prohibits the spraying of the anti-fungal liquid from the outlet when the human presence sensor determines that a person is present in the bathroom.

3. A water level sensor is provided for detecting the water level of the bathtub.

3. The bath hot water supply system according to claim 1, wherein the control device prohibits the spraying of the anti-mold liquid from the outlet when the water level sensor determines that water remains in the bathtub.

4. a remaining amount sensor capable of measuring the remaining amount of the antifungal liquid stored in the storage container; The bath hot water supply system of claim 1 or claim 2, wherein the control device prohibits spraying of the anti-mold liquid from the outlet when the remaining amount sensor measures the remaining amount of the anti-mold liquid stored in the storage container and determines that the amount is insufficient to spray into the bathroom.

5. a component sensor capable of measuring the components of the antifungal solution stored in the storage container; A bath hot water supply system as described in claim 1 or claim 2, wherein the control device prohibits the spraying of the anti-mold liquid from the outlet when the component sensor detects in the anti-mold liquid stored in the storage container components that cause deterioration of metal or plastic parts that make up the bath water circulation path.

6. A plurality of sensors related to the spraying of the antifungal liquid; A notification means; Equipped with 3. The bath hot water supply system according to claim 1, wherein the control device prohibits spraying of the anti-mold liquid and causes the notification means to notify the occurrence of a malfunction when a malfunction occurs in any of the plurality of sensors.

7. Equipped with a notification means, The bath hot water supply system of claim 4, wherein when the remaining amount sensor detects that the amount of the anti-mold liquid is less than a predetermined amount, the control device causes the notification means to issue a notification that the anti-mold liquid needs to be replenished.

8. Equipped with a notification means, The bath hot water supply system of claim 5, wherein when the control device detects based on the analysis results of the component sensor that the anti-mold liquid is unsuitable for use, it causes the notification means to notify the user that an anti-mold liquid that is unsuitable for use is being used.

9. The antifungal liquid contains a volatile liquid that evaporates when mixed with water, 3. The bath hot water supply system according to claim 1, wherein the control device discharges a mixture of the antifungal liquid and water to be supplied to the bath water circulation path from the discharge port into the bathtub.

10. The bath hot water supply system of claim 1 or claim 2, wherein the control device, after spraying the anti-mold liquid into the bathroom, causes water to flow into the bath water circulation path and discharges any anti-mold liquid remaining in the bath water circulation path toward the bathtub.

11. The control device includes an operation instruction means for instructing an operation of a ventilation device provided in the bathroom, A bath hot water supply system as described in claim 1 or claim 2, wherein the control device stops the operation of the ventilation device using the operation instruction means before spraying the anti-mold liquid into the bathroom, and operates the ventilation device using the operation instruction means after spraying into the bathroom has been completed.

12. A notification means for notifying an operating state of the bath hot water supply system is provided, 3. The bath hot water supply system according to claim 1, wherein the control device notifies a user of the execution of spraying the antifungal liquid at predetermined intervals by the notification means.

13. An outside air temperature sensor for detecting an outside air temperature; Calendar function and Equipped with The bath hot water supply system of claim 1 or claim 2, wherein the control device adjusts the amount of the anti-mold liquid to be used at one time so that it is greater when the detection value of the outside air temperature sensor is high than when it is low, and also adjusts the amount of the anti-mold liquid to be used at one time using the calendar function so that it is greater in seasons when mold is more prevalent than in seasons when mold is less prevalent.

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