JP7086345B2 - Bath water heater - Google Patents

Description

The present invention relates to a bath water heater that supplies hot water to a bathtub and performs a trial run.

Conventionally, a bath water heater that supplies hot water to a hot water tap, a bathtub, or the like has been installed in a home. The bath water heater newly introduced by the new construction or renovation of the house will be tested for operation after the installation is completed. Many bath water heaters are equipped with a function that automatically fills the bathtub with hot water at the desired water level, and the relationship between the amount of hot water supplied and the water level is confirmed during a trial run.

Since the bathtub connected to the bath water heater by piping is selected from a plurality of bathtubs having different shapes, sizes, manufacturers, etc., the number of combinations of the bath water heater and the bathtub is enormous. Therefore, in the trial run of the bath water heater, in order to check the shape and size of the bathtub connected to the bath water heater and set the relationship between the amount of hot water and the water level, supply hot water little by little and check the water level. Is repeated.

Due to the repeated supply of hot water and confirmation of the water level, the time required for the test run has become longer, and there is a demand for shortening the time. In order to shorten the test run time, for example, as in Patent Document 1, there is known a technique of calculating the volume of a bathtub corresponding to a predetermined water level by using a triangulation method in a test run of a bath water heater.

Japanese Unexamined Patent Publication No. 2016-8777

However, in Patent Document 1, since it is necessary to photograph the bathtub a plurality of times from different positions and angles for the triangulation method, the substantial time reduction of the test run is small, and there is room for improvement. An object of the present invention is to provide a bath water heater capable of shortening the test run time.

The invention of claim 1 is a bath hot water supply device provided with a control means configured to be connected to a hot water tap and a bathtub by a pipe so as to be able to supply hot water and to be able to communicate with an external device. The external device communicates with a communication network. The control means includes a server having a database for collecting bathtub data related to a plurality of types of bathtubs connected to the bathtub, and a portable terminal capable of taking an image and being able to communicate with the communication network, and the control means takes a picture with the portable terminal. The bathtub data in the database corresponding to the image of the bathtub in the home is received from the external device, and a trial run is performed based on the received bathtub data.

According to the above configuration, during the trial run of the bath water heater, the control means receives the bathtub data corresponding to the bathtub of the home selected from the database of the server based on the image of the bathtub of the home taken by the portable terminal. , The control means performs a trial run of the bath hot water supply device based on the received bathtub data. Therefore, since the test run corresponding to the bathtub of the home to which the bath water heater is connected by the pipe can be performed, the time for the test run can be shortened.

According to the invention of claim 2, in the invention of claim 1, the bathtub data received from the external device is the bathtub specification data, and the control means determines the amount of hot water supplied corresponding to the water level of the bathtub based on the specification data. It is characterized by calculating and performing a trial run.

According to the above configuration, the amount of hot water supplied corresponding to the water level of the bathtub is calculated based on the received specification data, and the calculated amount of hot water is supplied to the bathtub for a trial run. Therefore, since the test run corresponding to the bathtub installed in the home can be performed, the time for the test run can be shortened.

The invention of claim 3 is the invention of claim 1, in which the bathtub data received from the external device is bathtub type data, and the control means stores and receives the type data and specification data of a plurality of bathtubs in advance. It is characterized by calculating the amount of hot water supply corresponding to the water level of the bathtub based on the specification data of the bathtub corresponding to the model data and performing a trial run.

According to the above configuration, among the data related to a plurality of bathtubs stored in advance by the bath water heater, the amount of hot water supplied corresponding to the water level of the bathtub is calculated using the bathtub specification data corresponding to the received bathtub model data, and the trial run is performed. I do. Therefore, since the test run corresponding to the bathtub installed in the home can be performed, the time for the test run can be shortened.

The invention of claim 4 is characterized in that, in the invention of claim 1, the bathtub data received from the external device is a test run sequence created based on the dimensions and shape of the bathtub.

According to the above configuration, the test run is performed based on the test run sequence created by calculating the appropriate relationship between the hot water supply amount and the water level based on the dimensions and shape of the bathtub. Therefore, since the test run corresponding to the bathtub installed in the home can be performed, the time for the test run can be shortened.

According to the bath water heater of the present invention, the test run time can be shortened.

It is a figure which shows the connection structure of the bath water heater which concerns on Example 1 of this invention. It is a block diagram which shows the structure of the control part of a bath water heater. It is a block diagram which shows the structure of the control part of a bath water heater. It is a block diagram which shows the structure of the control part of a bath water heater. It is a flowchart which shows the trial run sequence of the conventional bath water heater. It is a figure which shows the water level of the bathtub at the time of a trial run. It is a flowchart of bathtub data acquisition which concerns on Example 1. FIG. It is a flowchart which shows the trial run sequence of the bath water heater which concerns on Example 1. FIG. It is a flowchart which shows the trial run sequence of the bath water heater which concerns on Example 3. FIG.

Hereinafter, embodiments for carrying out the present invention will be described with reference to examples.

First, the bath water heater 1 will be described with reference to FIG.
The bath water heater 1 is, for example, an instantaneous water heater that heats hot water by the heat of combustion of fuel, and is connected to a bathtub 2 and a hot water tap (not shown) by piping so that hot water can be supplied. This bath hot water supply device 1 adjusts the temperature by mixing the supplied clean water with the hot water heated by the heating unit 3 and the clean water with the mixing valve 4, and supplies hot water for supplying the temperature-adjusted hot water to a hot water tap or the like. It has a passage 5 and a hot water filling passage 6 for branching from the hot water supply passage 5 and supplying the bathtub 2. Further, it has a reheating passage 7 that sends the hot water of the bathtub 2 to the heating unit 3, heats it in the heating unit 3, and returns it to the bathtub 2 via the hot water filling passage 6. The bathtub 2 is provided with a circulation adapter 2a for connecting the hot water filling passage 6 and the reheating passage 7 to the bathtub 2.

A hot water supply flow rate sensor 5a, a hot water supply temperature sensor (not shown), and the like are arranged in the hot water supply passage 5. The hot water filling passage 6 branched from the hot water supply passage 5 is connected to the reheating passage 7. The on-off valve 6a that opens and closes the hot water filling passage 6 is opened when hot water is supplied to the bathtub 2, and is closed at other times. The reheating passage 7 is provided with a pump 7a for supplying the hot water of the bathtub 2 to the heating unit 3 and a water flow switch 7b for detecting the flow of the hot water. These various sensors, the mixing valve 4, the on-off valve 6a, the pump 7a, the heating unit 3, and the like are communicably connected to the control unit 8 (control means). As shown in FIG. 2, the control unit 8 includes, for example, a CPU 8a, a memory 8b composed of a DRAM or the like, a storage device 8c composed of a flash memory or the like, a communication interface 8d, or the like, and detection values of various sensors. A program that controls each operation such as test run, hot water supply, hot water filling, and reheating is executed based on the above.

As shown in FIG. 1, an operation terminal 9 is communicably connected to the control unit 8, and the temperature setting such as the hot water supply set temperature in the hot water supply operation and the bathtub set temperature in the hot water filling operation and the reheating operation can be set from the operation terminal 9. Set the water level of the bathtub 2 in the hot water filling operation. In addition, a test run, a hot water filling operation, a reheating operation, and the like are executed by operating the operation terminal 9. The operation terminal 9 includes a communication means 9a capable of communicating with an external device 10 and a communication network 11 in addition to the communication connection with the control unit 8. The communication network 11 is, for example, an Internet line, and the communication means 9a is a known wired or wireless communication device.

Next, the external device 10 will be described.
The external device 10 includes a portable terminal 12 (for example, a general-purpose or dedicated tablet PC, a smartphone, etc.) that can be carried by the installer, and a server 13 connected to the communication network 11. At the time of maintenance, a communication connection is made to the operation terminal 9 of the bath hot water supply device 1.

As shown in FIG. 3, the portable terminal 12 includes a CPU 12a, a memory 12b composed of a DRAM or the like, a storage device 12c composed of a flash memory or the like, a camera 12d capable of taking an image, and a touch-operable display. The device 12e is provided with a communication means 12f or the like having a function of communicating with the communication network 11 and a function of communicating with the operation terminal 9. Then, the portable terminal 12 assists the camera 12d in taking a picture of the home tub 2, transmits the taken image data to the server 13 via the communication network 11, and receives the tub data corresponding to the tub 2 from the server 13. A terminal program that provides a function of transmitting data to the operation terminal 9 has been introduced.

The portable terminal 12 guides and displays the part of the bathtub 2 to be photographed at the time of photographing on the display device 12e to assist the photographing, and automatically displays the image data of the photographed bathtub 2 on the display device 12e or operates from the display device 12e to the server. Send to 13. The image data of the bathtub 2 to be transmitted is image data obtained by photographing the entire bathtub 2 including at least the circulation adapter 2a and the drain port 2b of the bathtub 2 as a part to be photographed. Then, the bathtub data transmitted by the server 13 is received and stored in the memory 12b or the storage device 12c, connected to the operation terminal 9 by communication, and the received bathtub data is transmitted to the operation terminal 9.

As shown in FIG. 4, the server 13 includes a CPU 13a, a memory 13b composed of a DRAM or the like, a storage device 13c composed of a flash memory, a magnetic disk, or the like, and a communication means 13d or the like for communication connection to the communication network 11. It is a computer equipped with. The server 13 stores, for example, a database configured by collecting a plurality of types of bathtub data using the communication network 11 in the storage device 13c, and the bathtub corresponding to the image data of the bathtub 2 transmitted from the portable terminal 12. A database program has been introduced that provides the ability to select and send data.

The database includes bathtub type data, image data, specification data such as bathtub dimensions and shape, and the like as bathtub data. The database program compares the image data of the bathtub 2 transmitted from the portable terminal 12 with the image data of the bathtub of the database, and selects the bathtub data corresponding to the bathtub 2. Then, the selected bathtub data is transmitted to the portable terminal 12 that has transmitted the image data of the bathtub 2. When the operation terminal 9 is connected to the communication network 11, the portable terminal 12 transmits the IP address of the operation terminal 9 together with the image data of the bathtub 2 to the server 13, and the server 13 sends the portable terminal 12. The corresponding bath data may be transmitted to the operation terminal 9 without intervention.

Next, the trial run of the bath water heater 1 will be described.
Since the bathtub 2 is selected and installed according to the size of the bathroom to be installed from among various specifications having different sizes and shapes, the bathtub 2 is filled with hot water up to the water level set in the hot water filling operation. Therefore, it is necessary to set an appropriate water level hot water amount (setting of the relationship between the water level and the hot water supply amount) in advance. This water level hot water amount setting is performed in the trial run of the bath hot water supply device 1.

The water level of the bathtub 2 (distance from the bottom surface of the bathtub 2 to the water surface) is detected by the pressure sensor 7c provided in the reheating passage 7 in the vicinity of the circulation adapter 2a. The detected pressure of the pressure sensor 7c is proportional to the water level of the bathtub 2, and the control unit 8 has a map showing the relationship between the detected pressure and the water level and accurately acquires the water level of the bathtub 2.

Here, in the bath water heater 1, the conventional test run sequence will be described with reference to the flowchart of FIG. 5 and FIG. Si (i = 1, 2, ...) In FIG. 5 represents a step.
First, in S1, the installer of the bath water heater 1 sets the hot water supply set temperature, fuel type, unit price, etc. from the operation terminal 9, closes the drain port 2b of the bathtub 2, and operates the operation terminal 9. Start the trial run.

Next, in S2, after supplying a predetermined amount of hot water of A1 (for example, 10 L) from the bath hot water supply device 1 to the bathtub 2 via the hot water filling passage 6, the pump 7a of the reheating passage 7 is driven to charge the hot water of the bathtub 2. It is determined whether or not it is possible to circulate through the reheating passage 7 and return to the bathtub 2. It is a step to confirm that there is no hot water that hinders the setting of the water level in the bathtub 2 and that there is no problem such as clogging of the hot water filling passage 6, and the hot water of the bathtub 2 is circulated by the water flow switch 7b of the reheating passage 7. Is detected. The amount of hot water supplied is obtained from the detected flow rate of the hot water supply flow rate sensor 5a and the detection period thereof. When the determination is No, that is, when circulation is not detected, the pump 7a is stopped and the process proceeds to S3. On the other hand, if the determination is Yes, that is, when circulation is detected, the pump 7a cannot be set appropriately, so the pump 7a is stopped and the process proceeds to S20.

Next, in S3, a predetermined amount of hot water A2 (for example, 60 L) is supplied to the bathtub 2 to proceed to S4. Then, in S4, the pump 7a is driven to determine whether or not the hot water in the bathtub 2 can be circulated. If the determination is No, the pump 7a is stopped and the process proceeds to S5. In S5, the bathtub 2 is supplied with hot water of a predetermined amount A3 (for example, 20 L) and proceeds to S6. And return to S4. The supply of the predetermined amount A3 is repeated until circulation becomes possible. The number of times of supply n is set to zero at the start of the trial run.

If the determination in S4 is Yes, the process proceeds to S7, and in S7, a predetermined amount of hot water A4 (for example, 10 L) is supplied to the bathtub 2 and the process proceeds to S8. Then, in S8, the pump 7a is driven to reconfirm the circulation of hot water in the bathtub 2, the pump 7a is stopped, and the process proceeds to S9. Then, in S9, the current water level is set as the reference water level H1 for appropriately setting the water level hot water amount, and the process proceeds to S10.

Next, in S10, a predetermined amount of hot water of A5 (for example, 40 L) is supplied to the bathtub 2 to proceed to S11, and in S11, the current water level is set to the intermediate water level H2 and the process proceeds to S12. Then, in S12, the supply amount A6 of hot water required to reach the target water level H3 from the intermediate water level H2 is calculated, and the process proceeds to S13. The target water level H3 is a preset water level for confirming other operations such as reheating operation in the test run. The water level hot water amount is set from the relationship between the reference water level H1, the intermediate water level H2, and the predetermined amount A5, and the hot water supply amount A6 required to make the target water level H3 from the intermediate water level H2 is calculated based on this water level hot water amount setting. ..

Next, in S13, the calculated hot water of the supply amount A6 is supplied to the bathtub 2 and the process proceeds to S14. Then, in S14, it is determined whether or not the current water level is equal to or higher than a predetermined determination reference value (for example, the target water level H3-10 mm). Generally, the inner wall of a bathtub is inclined, and the opening area (area of the water surface) becomes larger toward the top. Therefore, the error due to the non-linear relationship between the amount of hot water supplied and the water level due to this shape Judgment standard values are set to allow. If the determination is No, the process proceeds to S15, in S15, a predetermined amount of hot water of A7 (for example, 2 L) is supplied to the bathtub 2 and the process proceeds to S16. .. The supply of hot water of a predetermined amount A7 is repeated until the value becomes equal to or higher than the judgment reference value. The number of times of supply m is set to zero at the start of the trial run.

If the determination in S14 is Yes, the process proceeds to S17, the current water level is set to the operation confirmation water level H4, and the process proceeds to S18. The operation confirmation water level H4 becomes the standard water level for normal hot water filling operation after the test run is completed, and the amount of hot water supplied is adjusted based on this water level. Then, in S18, other operations such as a reheating operation and a hot water operation in which a certain amount of hot water is added to the bathtub 2 are confirmed, and the process proceeds to S19.

Next, in S19, the setting data reflecting the result of the trial run is stored (saved) and the trial run is terminated. This setting data includes the water level hot water amount setting, the hot water supply amount (A1 + A2 + A3 × n + A4 + A5 + A6 + A7 × m) corresponding to the operation confirmation water level H4 (standard water level), the type and unit price of the fuel supplied to the bath hot water supply device 1, and the like. Contains data and the like input from the operation terminal 9.

In the test run sequence of the bath water heater 1 as described above, the water level and the amount of hot water are set by repeatedly supplying hot water to the bathtub 2 and checking the water level so as to be compatible with bathtubs having various specifications. Then, the amount of hot water calculated based on the water level hot water amount setting is supplied to the bathtub, and it is confirmed that the water level hot water amount setting is performed correctly, so that a certain amount of time is required for the test run. Therefore, if the relationship between the amount of hot water supplied to the bathtub 2 and the water level is known regardless of the trial run, the time for the trial run can be shortened. Therefore, the bath hot water supply device 1 of the present invention acquires the bathtub data of the installed bathtub 2. And perform a test run. The acquisition of the bathtub data will be described with reference to the flowchart of FIG. Si (i = 21, 22, ...) In the figure represents a step.

In S21, the bathtub 2 installed in the home is photographed by the portable terminal 12 and the process proceeds to S22. Next, in S22, the image data of the bathtub 2 taken is transmitted from the portable terminal 12 to the server 13, and the process proceeds to S23. Next, in S23, the server 13 compares the image data of the plurality of bathtubs stored in the database with the image data of the bathtub 2 transmitted by the portable terminal 12, and selects the bathtub data corresponding to the bathtub 2. Proceed to S24. Next, in S24, the selected bathtub data is transmitted from the server 13 to the portable terminal 12, and the process proceeds to S25. Then, in S25, the portable terminal 12 is communicatively connected to the operation terminal 9 of the bath water heater 1, and the bathtub data transmitted from the server 13 is transmitted to the control unit 8 of the bath water heater 1 to end the process.

The bathtub data includes specification data such as the dimensions and shape of the bathtub 2, and the bathtub data can be used to simplify the trial run. This simplified test run will be described with reference to the flowcharts of FIGS. 6 and 8. Si (i = 31, 32, ...) In FIG. 8 represents a step.

In S31, the operation terminal 9 is operated to start the test run and proceed to S32. Next, in S32, after supplying a predetermined amount of hot water of A1 from the bath hot water supply device 1 to the bathtub 2 via the hot water filling passage 6, the pump 7a of the reheating passage 7 is driven, and the hot water of the bathtub 2 is the reheating passage 7. Is possible to circulate and return to the bathtub 2. If the determination is No, the pump 7a is stopped and the process proceeds to S33. If the determination is Yes, the relationship between the amount of hot water supplied and the water level cannot be set appropriately, so the pump 7a is stopped and the process proceeds to S42, and the installer is notified of the error occurrence of the test run in S42 and the process ends.

Next, in S33, the relationship between the amount of hot water supplied and the water level is calculated based on the bathtub data, and the process proceeds to S34. Then, in S34, based on the relationship between the calculated hot water supply amount and the water level, the hot water supply amount to reach the reference water level H1 by additionally supplying the hot water supply of the predetermined amount A1 already supplied is calculated, and the calculated hot water supply amount is used in the bathtub 2. Supply and proceed to S35.

Next, in S35, it is determined whether or not the hot water of the bathtub 2 can be circulated through the reheating passage 7 and returned to the bathtub 2 by driving the pump 7a. If circulation is not possible and the judgment is No, proper test run cannot be performed because the correct bathtub data has not been received, or there is something wrong with the piping connection between the bathtub hot water supply device 1 and the bathtub 2. The pump 7a is stopped, the process proceeds to S42, and the builder is notified of the occurrence of a test run error in S42 and the process ends. If circulation is possible and the determination is Yes, the pump 7a is stopped and the process proceeds to S36.

Next, in S36, the current water level is stored as the reference water level H1 and the process proceeds to S37. Next, in S37, based on the relationship between the amount of hot water supplied and the water level calculated in S33, the amount of hot water supplied to the already supplied hot water to reach the target water level H3 is calculated, and the calculated amount of hot water is used in the bathtub 2. Supply and proceed to S38.

Next, in S38, it is determined whether or not the difference between the current water level and the target water level H3 is within a predetermined reference range (for example, within ± 5 mm). If the determination is No, that is, if there is a possibility that some trouble has occurred such as not receiving the correct bathtub data, the process proceeds to S42. If the determination is Yes, the process proceeds to S39, and in S39, the current water level is set to the operation confirmation water level H4 (standard water level) of the bath water heater 1, and the process proceeds to S40.

Next, in S40, other operations such as reheating and hot water are confirmed, and the process proceeds to S41. In S41, the setting data reflecting the result of the test run is stored and the test run is completed. In this way, by using the relationship between the hot water supply amount and the water level calculated based on the bathtub specification data included in the bathtub data, the repetition of hot water supply and water level confirmation is reduced and the test run time is shortened. Further, in the case of the trial run system composed of the bath hot water supply device 1 and the external device 10 as described above, the image data transmitted from the portable terminal 12 is the entire image data of the bathtub 2 including the part to be photographed, so that the image data is photographed. Is easy, and the burden on the installer is reduced.

An example in which the bathtub data transmitted from the server 13 is the bathtub type data will be described by partially modifying the first embodiment. The parts common to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
The bathtub data transmitted from the server 13 is bathtub type data. The control unit 8 of the bath hot water supply device 1 stores in advance the model data of a plurality of bathtubs and the specification data such as the dimensions and shapes of the bathtubs corresponding to them in the storage device 8c. The model data and specification data of the plurality of bathtubs are stored at the time of manufacturing the bath water heater 1, but may be updated by the portable terminal 12 at the time of construction, for example.

The control unit 8 calculates the relationship between the amount of hot water supplied to the bathtub and the water level based on the bathtub specification data corresponding to the received bathtub type data, and performs a test run (see S33 in FIG. 8). By using the relationship between the amount of hot water supplied and the water level calculated based on the bathtub specification data stored in advance by the bath water heater 1, the repetition of hot water supply and water level confirmation is reduced and the test run time is shortened.

Another example in which the first embodiment is partially modified will be described. The parts common to the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
The server 13 has introduced a test run sequence creation program for creating a test run sequence suitable for each of a plurality of bathtubs included in the database based on the dimensions and shapes included in the specification data. The test run sequence created by the test run sequence creation program for each bathtub is stored in the database, and the bathtub data transmitted from the server 13 is, for example, a test run sequence as shown in FIG.

Since this test run sequence already includes the relationship between the hot water supply amount and the water level of the bathtub calculated by the server 13 based on the specification data, the step of calculating the relationship between the hot water supply amount and the water level (S33 in FIG. 8) is omitted. Except for what was done, it is the same as the test run sequence of FIG. By using the relationship between the amount of hot water supplied and the water level calculated by the server 13, the repetition of hot water supply and water level confirmation is reduced, and the test run time is shortened. A test run sequence may be created and transmitted when the bathtub data corresponding to the bathtub 2 is selected, and the test run sequence may include a hot water supply amount calculated based on the relationship between the calculated hot water supply amount and the water level. ..

Next, the operation and effect of the bath water heater 1 of the present invention will be described.
At the time of the trial run of the bath hot water supply device 1, the bath hot water supply device 1 obtains bathtub data corresponding to the bathtub 2 selected from the database of the server 13 based on the image data of the bathtub 2 at home taken by the portable terminal 12. Receive. Then, a test run of the bath water heater 1 is performed based on the received bathtub data. Therefore, since the bath water heater 1 can perform a trial run corresponding to the bathtub 2 connected to the pipe, the time required for the trial run can be shortened.

The bath hot water supply device 1 calculates a hot water supply amount corresponding to the water level of the bathtub 2 based on the received specification data, and supplies the calculated hot water supply amount to the bathtub 2 to perform a trial run. Therefore, since the test run corresponding to the bathtub 2 installed in the home can be performed, the time for the test run can be shortened.

Further, the bath water heater 1 can receive a test run sequence in which the relationship between the amount of hot water supplied to the bathtub 2 and the water level has already been calculated, and can perform a test run based on this test run sequence. Therefore, since the test run corresponding to the bathtub 2 installed in the home can be performed, the time for the test run can be shortened.

The image data of the bathtub 2 transmitted from the portable terminal 12 to the server 13 may be moving image data, and the database program may select the bathtub data corresponding to the bathtub 2 based on the image extracted from the moving image data. good. Further, the bath water heater 1 may be a hot water storage type water heater that supplies hot water stored by using a heat pump heat source machine or the like. In addition, a person skilled in the art can carry out the present invention in a form in which various modifications are added to the above embodiment without departing from the spirit of the present invention, and the present invention includes such modified forms.

1: Bath water heater 2: Bathtub 2a: Circulation adapter 2b: Drainage port 8: Control unit (control means)
9: Operation terminal 9a: Communication means 10: External device 11: Communication network 12: Portable terminal 12d: Camera 12f: Communication means 13: Server 13d: Communication means

Claims (4)

In a bath water heater equipped with a control means that is connected to a hot water tap and bathtub at home by piping so that it can be connected to an external device by communication.
The external device includes a server provided with a database that is communicatively connected to a communication network and collects bathtub data relating to a plurality of types of bathtubs, and a portable terminal capable of taking an image and communicatively connecting to the communication network.
The control means is characterized in that bathtub data in the database corresponding to an image of the bathtub in the home taken by the portable terminal is received from the external device and a trial run is performed based on the received bathtub data. Bath hot water supply device. The bathtub data received from the external device is the bathtub specification data.
The bath water heater according to claim 1, wherein the control means calculates a hot water supply amount corresponding to a water level of a bathtub based on the specification data and performs a trial run. The bathtub data received from the external device is bathtub type data, and is
The control means stores the type data and specification data of a plurality of bathtubs in advance, calculates the amount of hot water supply corresponding to the water level of the bathtub based on the specification data of the bathtub corresponding to the received type data, and performs a trial run. The bath hot water supply device according to claim 1, which is characterized by this. The bath water heater according to claim 1, wherein the bathtub data received from the external device is a test run sequence created based on the dimensions and shape of the bathtub.

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