JPH08275252A - Remote controller - Google Patents

Abstract

PURPOSE: To easily confirm a content of a desired item through quick designation of the item by providing a 1st switch and a 2nd switch to each digit of an item number and displaying the item number in a designation enabled way. CONSTITUTION: A display means has a 2nd digit display section 42, a 1st digit display section 43 and a clock display section 41 displaying numerals especially. When a mode changeover means sets the operation mode, a set temperature of hot water in a bath tab is displayed on the display section comprising the 2nd digit display section 42 and the 1st digit display section 43 and the operation is controlled by temperature switches 39, 40. When the mode changeover means sets the maintenance monitor mode, the number of the maintenance information is displayed by the display sections 42, 43 and a data content corresponding to the number is displayed on the clock display section 41. Then the 2nd digit display section 42 is revised by hot water amount switches 37, 38 and the 1st digit display section 43 is revised by the temperature switches 39, 40.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote controller capable of remotely controlling equipment such as a water heater and displaying data relating to the equipment.

[0002]

2. Description of the Related Art Conventionally, in a device such as a water heater, for displaying data such as the specifications of the device, the usage status, and error contents at the time of an abnormality, a dedicated display section is provided and data items to be displayed. An up / down switch that shifts the item number forward or backward with respect to the number is provided, and the item is switched by the up / down switch to display the data content.

[0003]

Although there is such a conventional one, there is a problem that the conventional one needs a new display section, and the number of data items is two or more digits. If there are many items, it is very troublesome to switch the items with one up / down switch, and it also takes time. Therefore, the present invention has been made in view of the above problems, and in the case of having a large number of data items of two digits or more, an up / down switch for switching the item number for each digit is provided. An object of the present invention is to provide a remote controller that can realize swift switching of data items.

Further, the switch for setting the item number, the set number, and the display section for displaying the contents corresponding to the number can be used as other items when the mode is switched by the mode switching means. It is an object of the present invention to provide a remote controller that effectively uses the display unit and the switch.

[0005]

In order to achieve the above object, the invention according to claim 1 is a remote controller for displaying data relating to a device, which is provided on either the device body side or the remote controller side. A storage means for storing data relating to the device by assigning numbers to items having at least two digits, a first switch for designating a first digit number of an item number of contents stored in the storage means, and A second switch for designating the second digit number of the item number of the content stored in the storage means, the item number set by the first switch and the second switch, and data corresponding to the item number. And a display unit for displaying contents.

According to a second aspect of the present invention, there is provided a remote controller for remotely controlling the water heater and displaying information on the water heater, and a clock display section for displaying the time and at least two digits for the information on the water heater. And a mode switching unit for switching at least two modes of an operation mode for remotely operating the water heater and a monitor mode for displaying information on the water heater on a monitor. A first switch, which is an up / down switch for setting the temperature (or the amount of hot water) when the operation mode is set by the switching means, and the temperature (or the amount of hot water) provided separately from the first switch. A second switch, which is an up / down switch for performing settings related to the above, and the first switch or the second switch. When a monitor mode is set by the temperature (or hot water amount) display section for displaying the content of the temperature (or hot water amount) operated by at least one of The display of the display unit 2 by the first switch.
The digit is set, the first digit of the display unit is set by the second switch, the number set by the first switch and the second switch is displayed on the display unit, and Display control means for controlling the display of the contents stored in the storage means corresponding to the number set by the first switch and the second switch on the timepiece display section.

According to a third aspect of the present invention, there is provided a remote controller for remotely controlling the water heater and displaying information on the water heater, which is used for displaying data relating to a specification change of the water heater which is predetermined for each model of the water heater. It is connected to a water heater main body provided with a data receiving means for receiving and a storage means for storing specific specifications of the water heater based on the data received by the data receiving means by assigning numbers to two or more digit items, A mode display means for switching at least two modes, a clock display section for displaying the time and an operation mode for remotely operating the water heater and a monitor mode for displaying information on the water heater on a monitor, is provided, and the operation mode is performed by the mode switching means. Temperature (or amount of hot water) when set to
First consisting of an up / down switch for setting
Switch and a second switch, which is an up / down switch that is provided separately from the first switch, for setting the temperature (or the amount of hot water), and at least one of the first switch and the second switch. A temperature (or hot water amount) display section for displaying the content of the temperature (or hot water amount) operated by one of them in at least two digits or more; and when the monitor mode is set by the mode switching means, The second digit of the display section is set by the first switch, the first digit of the display section is set by the second switch, and the number set by the first switch and the second switch is displayed by the switch. Displayed in the section,
Further, it is characterized by further comprising display control means for controlling the time display section to display the contents stored in the storage means corresponding to the numbers set by the first switch and the second switch.

[0008]

According to the remote controller of the present invention, the first switch is provided for each digit of the item number when the remote controller displays the data content in which the item number is attached to a large number of items having two or more digits. Since the second switch is provided so that the item number can be designated so that the item can be designated, a desired item can be designated quickly from a large number of items and its contents can be easily viewed.

Further, in the case of a remote controller of a water heater, there are some remote controllers having a display section for displaying a temperature (or the amount of hot water) and a display section for displaying the time, and the switch has a temperature (or the amount of hot water) or the like. Some have multiple up / down switches for setting. These up / down switches are used to specify the item number of the monitor information. Especially, one up / down switch is used to set the second digit of the item number, and another up / down switch is used to set the first digit. Therefore, it is possible to quickly specify and set the items of monitor information without providing a separate switch.

Further, the designated number is displayed on the display unit for displaying the temperature (or the amount of hot water), and the contents of the monitor corresponding to the number are displayed on the clock display unit. Information can be displayed.

Further, according to the remote controller of the water heater of the present invention, the data receiving means for receiving data, which is information on the model of the water heater from the outside of the water heater, and the hot water for the data received by the data receiving means. Since it has a storage means for storing the specific specifications of the water heater, in a water heater that can be used by one water heater corresponding to a plurality of models, by receiving data regarding the water heater from the outside by the data receiving means, It is possible to set the specific specifications of the model based on the storage means, and the remote controller side can quickly specify the item number of the set specific specifications and confirm the contents.

[0012]

Embodiments of the present invention will be described below with reference to the drawings. First, an outline of a water heater of the present invention and a data processing device that can be used for the water heater will be described. FIG. 1 is a schematic diagram thereof. In FIG. 1, 1 is a water heater and 10 is a data processing device. The water heater 1 is for supplying water or hot water to the kitchen or bathroom, and supplies water according to an instruction from the remote controller 30 and heats it by a combustion unit (not shown) to supply hot water of a desired temperature. To do. The data processing device 10 uses the model information of the water heater 1,
This is a device for writing data relating to the water heater such as specification information to the storage means of the water heater at the time of shipping, for example. If all the specifications of the water heater are written and stored in advance during the manufacturing of the water heater itself, the specifications of the water heater have no flexibility and cannot be used for other purposes. It is the actual situation that water heaters have various specifications such as exhaust control depending on the number of combustion and the exhaust method depending on the place of use, so such specifications should be written in the water heater at the time of shipment. This is because it is convenient because it can be applied to several modes depending on the situation in which it is installed with one water heater.

The data processing device 10 has a bar code reader 5 attached thereto and is connected to the water heater 1 by a transmission line 6. At the time of shipping or in the final manufacturing process of the water heater, the bar code label 4 with the bar code 3 is attached to the water heater 1 itself or the carrier of the water heater 1, and the bar code reader 5 is attached.
Reads the bar code 3, transmits the information read by the data processing device 10 and the information about the water heater based on the read information to the water heater 1 side, and the transmitted data is stored in the water heater side. There is.

Next, the information shown on the bar code 3 will be described with reference to FIG. The type of water heater is indicated by a 7-digit number. The first digit from the left indicates whether or not it is a product. If it is a product, 0 is stored. 2 from the left
A model code whose fifth digit indicates the model is shown. The 6th and 7th digits from the left indicate the type of gas handled by the water heater. And this 7-digit number information is the barcode label 4
It is displayed as barcode 3 on the.

Next, the configuration of this embodiment will be described in detail with reference to FIG. As shown in FIG. 3, the data processing device 10
Is connected to the bar code reader 5, the read code receiving means 11 and the dip data conversion table 1
2, a display unit 13, and a data transmission unit 14.

The read code receiving means 11 is means for receiving the information read by the bar code reader 5. The dip data conversion table 12 stores a table for converting the model code read by the read code receiving means 11 into dip data. This dip data is 0 or 1 and indicates a specification switching state as described later. It is shown. This dip data conversion table 1
FIG. 4 shows a part of the memory state of No. 2, for example,
The dip data is 0 for the water heater whose model code is 0088.
It is 00100000.

The display means 13 is for displaying the information read by the bar code reader 5, displaying the corresponding dip data, and displaying a reread instruction if there is a read error. Data transmission means 1
Reference numeral 4 is a means for transmitting data to the water heater 1 side through the transmission line 6, and transmits data relating to the water heater 1 including at least the model code and the dip code to the water heater 1 side.

Next, the water heater 1 side will be described. The water heater 1 is connected to a remote controller 30 for remote operation, has a data receiving means 21 and a storage means 24, and the storage means 24 stores data. The storage means 22 and the dip data switching table 23 are included.

The data receiving means 21 is means for receiving the data transmitted from the data processing device 10 side through the transmission line 6. The data storage unit 22 is a unit that stores data relating to the water heater, and stores at least data including the model code and dip data received by the data receiving unit 21.

The dip data switching table 23 stores concretely what the specifications of the water heater are based on the dip data, and FIG. 5 shows the state. As shown in FIGS. 4 and 5, the dip data is indicated by an 8-digit code of 0 or 1, and the code of 1 to 3 digits from the left has a function as the changeover switches 1 to 3 in effect. , 0 or 1 combination is used to select the exhaust variation specification.

Specifically, there are various types of exhaust variations, such as a long exhaust pipe type, a short exhaust type, a stationary exhaust type, and a low NOx exhaust type. In addition, the control of the exhaust blower fan and the like also differ depending on the type.

The codes at the 4th and 5th digits from the left of the dip data have the function of the changeover switches 4 and 5 in practice, and the combination of 0 or 1 selects auto, semi-auto, or simple specifications. ing. Specifically, the automatic specifications are specifications for automatically dropping the water into the bathtub by the water heater, automatically maintaining heat, and automatically replenishing water. SW4 = 1, SW5
= 1 is selected. The semi-automatic specification is a specification in which water is automatically dropped into the bathtub by the water heater, heat is automatically maintained, and water is not automatically replenished, and SW4 = 1 and SW5 = 0 are selected. The simple specification is a specification that has only the warming function of hot water in the bathtub, does not automatically drop water, and does not perform automatic water replenishment.
It is selected by SW4 = 0 and SW5 = 1.

The code in the sixth digit from the left of the dip data has a function as a change-over switch 6 in practice, and a combination of 0 or 1 selects the presence or absence of the Q function. The Q function is a special control function for preventing a cold water sandwich phenomenon that tends to occur during hot water supply, and is a specification having the Q function when SW6 = 1 and not having SW6 = 0.

The codes at the 7th and 8th digits from the left of the dip data have the functions of the changeover switches 7 and 8 in practice, and the combination of 0 or 1 selects the function selection specification. The function select is a specification regarding the maximum combustion amount of the water heater, the maximum combustion amount is 16 when SW7 = 1 and SW8 = 1, the maximum combustion amount is 20 when SW7 = 1 and SW8 = 0, A specification is selected in which the maximum combustion amount is No. 24 when SW7 = 0 and SW8 = 1, and the maximum combustion amount is No. 28 when SW7 = 0 and SW8 = 0.

As described above, the dip data switching table stores each specification corresponding to each switching state of the dip data as the 8-digit 0 or 1 switching code. Therefore, the specific specifications of the water heater are determined based on the 8-digit dip data stored in the data storage means 22 and the contents of the dip data switching table 23.

The specific specifications of this water heater are not limited to those shown in FIG. 5, but various specifications are determined in association with the specifications. For example, if the exhaust variation is determined, the rotation speed of each fan is set accordingly, and
If semi-auto etc. is decided, the data on the water level is set accordingly, and if the maximum combustion amount is decided by the function select, the data on the fuel supply amount is set accordingly, and other various specific specifications of the water heater are decided. It

Next, the remote controller 30 connected to the water heater 1 will be described. FIG. 6 shows an external view of the remote controller 30. As shown in FIG. 6, the remote controller 30 includes temperature setting switches 35 and 36 for setting the hot water supply temperature, hot water amount switches 37 and 38 for setting the water level of the bathtub, and a temperature for setting the temperature of the hot water of the bathtub. It has an operating means 31 composed of switches 39 and 40, a time display section 41 for displaying the time, and a display means 32 composed of bathtub hot water temperature display sections 42 and 43 for displaying the set temperature of the hot water in the bathtub. .

Operating means 31 of remote controller 30
7 shows the configuration of the part related to the display means 32.
Is. The operation content of the operation means 31 is the mode switching means 5
6 and the display control means 57 and the like. The mode switching means 56 operates the display means 3 by operating the operation means 31.
The display mode of No. 2 is switched, and the display mode includes an operation mode for displaying information on the operating state of the water heater, a maintenance monitor mode for displaying information on the maintenance information of the water heater, and a content for the model code of the water heater. There is a model information display mode that displays. The display control unit 57 operates the operation unit 31 and the mode switching unit 5.
The display control of each display unit of the display unit 32 is performed by referring to the contents of the storage unit 24 corresponding to the operation and the mode according to the mode according to 6 as necessary.

The display means 32 has a second digit display section 42 for displaying numbers, a first digit display section 43, and a clock display section 41. The second digit display section 42 and the first digit display section 43
The display unit 44 consisting of displays the set temperature of the hot water in the bathtub in the operation mode by the mode switching means 56,
The operation is operated by the temperature switches 39 and 40.
If the mode is switched to the maintenance monitor mode by the mode switching means 56, the maintenance information number is displayed on the display sections 42 and 4.
3 and the data content corresponding to the number is displayed on the clock display unit 41. The number is changed by the hot water switches 37 and 38 on the second digit display section 42 and the temperature switches 39 and 40 on the first digit display section 43.

In the model information display mode by the mode switching means 56, the model code of the water heater is displayed continuously on the clock display section 41 and the display sections 42 and 43.

Next, the operation of this embodiment will be described with reference to the flowchart of FIG. First, the barcode label 5 attached to the water heater 1 by the barcode reader 5
The bar code 3 is read (S1), the information of the bar code read by the read code receiving means 11 is received, and the model code is provided to the dip data conversion table (S2).
Then, based on this model code, the dip data is extracted by the dip data conversion table shown in FIG. 4 (S
3), the information read by the bar code reader 5, the model code, and information such as this dip data are displayed on the display means 13 of the data processing device 10 (S4). And
If there is no error, the operation moves to the next operation, and if there is an error, the operations of steps S1 to S4 are repeated (S5).

If there is no error, the data transmitting means 14 transmits necessary data to the water heater 1 side (S6), and the data receiving means 21 receives the data transmitted from the data processing device 10 side (S7). The data transmitted and received at this time is data including at least model information such as a model code and dip data. When the data receiving unit 21 receives the data, the received data is stored in the data storage unit 2.
It is stored in 2 (S8). The data storage means 22 can be realized as long as it can store data.
The electrically writable non-volatile memory is suitable for the present embodiment because the writing is easy and the data can be stored even when the power is not supplied.

Then, the specifications of the water heater are determined based on the dip data stored in the data storage means 22 and the dip switching table 23 shown in FIG. 5 which is stored in advance (S9).

The above-described operations of steps S1 to S9 can be executed whether the remote controller 30 is connected or not, and can be executed when the remote controller 30 is connected or after that. Is connected (S10),
The mode state is determined (S11). When the operation mode state is instructed by the remote controller 30, the hot water supply operation is performed according to the instruction of the remote controller 30 based on the specifications determined in step S9 (S12). If the state is the maintenance monitor mode, the mode shifts to the maintenance monitor mode.

The transition to the maintenance monitor mode may be performed by turning on or off the operation switch.
Simultaneous pressing of the up switch 35 and the down switch 36 of the temperature setting switch for hot water supply is switched by the mode switching means 56 in two consecutive seconds (S11). The maintenance monitor mode is a mode for displaying various information regarding the water heater as shown in FIG. Is attached.

Address No. The second digit is set with the hot water switches 37 and 38, the first digit is the temperature switch 39,
It is supposed to be done at 40. First, the hot water switch 3
It is determined whether or not 7, 38 is operated (S13), and if operated, the second digit number is shifted up or down according to the operation (S14). If not operated, it is then determined whether the temperature switch is operated (S1).
5) If it is operated, the first digit is shifted up or down according to the operation (S16). Then, the set NO. And its contents are displayed (S1
7).

The display is displayed on the display sections 42 and 43. The display units 42 and 43 are the temperature switch 3 in the operation mode.
Although the temperature of the hot water in the bathtub set by 9, 40 is displayed, in the maintenance monitor mode, the display unit 4
2 has the address No. set by the hot water switches 37, 38. No. of the address set by the temperature switches 39 and 40 is displayed on the display unit 43. Of 1
The digit number is displayed.

Further, the address No. displayed on the display units 42 and 43 is displayed. The information corresponding to is displayed by using the numerical display of the time display unit 41 (S17). The display is as shown in FIG. When 1 is set, the 8-digit 0 or 1 dip data converted into hexadecimal is displayed. NO. When 10 is set, the current hot-water supply fan rotation speed is displayed. It should be noted that these are information relating to specific specifications of the water heater determined based on the dip data transmitted from the data processing device 10. In this way, the address NO. For the setting of, the first digit is the temperature switches 39 and 40, the second digit is the hot water switch 37,
38, the address NO. Setting is easy, and the change can be made very immediately. In addition, this address N0. Is the item number of monitor information.

Address N0. And, the contents of the storage means for storing the information about the hot water heater corresponding thereto are further devised. Specifically, as shown in FIG. 9, N0.10 stores the hot water supply current fan rotation speed indicating the current (or most recent) rotation speed of the fan, and N0.11 stores the current bath speed ( (Or most recent) the current fan rotation speed indicating the rotation speed of the fan is stored. The set value corresponding to address N0.10 is stored in N0.20 as the hot water supply fan rotation speed, and the set value corresponding to address N0.11 is N0.21.
It is stored as the fan rotation speed setting.

That is, the actual measurement value and the set value corresponding thereto are stored in the address N0. Of the address N0. The address N is attached so that the second digit number is as close as possible.
0. Is attached.

Therefore, for example, when it is desired to compare the present value of the number of revolutions of the hot water supply fan with the set value, the hot water amount switches 37 and 38 and the temperature switches 39 and 40 are used to set the address N.
0. Is set to N0.10, and then it is convenient to operate the hot water switches 37 and 38 which are the second digit switches only once.

Then, it is judged by the mode switching means 56 whether the maintenance monitor mode is canceled and completed (S18). If not completed, steps S13 to S1.
The operation of 7 is repeated. The maintenance monitor mode is released by pressing the temperature switches 35 and 36 for hot water supply again simultaneously or continuously leaving it for 5 minutes, and if released, the process returns to step S10 (S18).

If the model information display mode is selected in step S11, the mode is shifted to the model information display mode (S1).
1). The transition to the model information display mode is performed by the mode switching means 56 by pressing the hot water supply priority switch 34 for 5 seconds or longer when the operation switch is off. In this model information display mode, as shown in FIG. 10, a four-digit model code is displayed by using two numbers in the minute display portion of the time display 41 and a total of four number displays of the display sections 42 and 43. (S19). In FIG. 9, “0088” is displayed as the model code. And
If this mode is released and does not end, the display continues (S
20). The model information display mode is released by operating the operation switch or not operating the switch for 30 seconds. When the mode is released, the process returns to step S10 (S2).
0).

Next, another embodiment will be described with reference to FIG. 11 is different from FIG. 3 in that the dip data conversion table 12 provided on the data processor side in FIG. 3 is provided on the water heater side in FIG. 11, and the other points are shown in FIG. The configuration is the same as that of 3. In the case of this embodiment, the data processing device does not perform the conversion operation of the model code to the dip data, and the model code read by the bar code reader 5 is sent to the data transmitting means 14.
Is sent to the water heater side, and the data receiving means 2 on the water heater side
The DIP data conversion table 12 converts the DIP data into the dip data based on the received model code. Therefore, in this case, the configuration of the data processing device can be simplified. However, the load on the storage capacity of the water heater increases.

In the above-described embodiment, the data processing device 10 has been described for the case of setting the specifications of the water heater 1, but it goes without saying that it can be applied to devices other than the water heater. It can be applied to any device that requires specification switching setting.

In the above embodiment, the second digit display section 42 is operated by the hot water switches 37, 38 and the first digit display section 43 is operated by the temperature switches 39, 40 in the monitor mode. Second digit and first digit display section 42,
43, hot water switches 37, 38 and temperature switch 3
The relationship with 9 and 40 may be reversed. Also,
Both may be temperature switches or both may be hot water switches.

Further, in the above embodiment, the display portions 42 and 43 are two-digit numeral display portions in the monitor mode,
It may be a digit display. In that case, the temperature setting switches 35 and 36 for hot water supply / shower can be used as the third digit switch.

Further, it is possible to use four digits, five digits, or the like. In that case, it is possible to use a switch for warming and warming.

Further, in the above embodiment, the mode switching means 56.
There are three types of switching modes for switching the operating mode, the monitor mode used for maintenance, and the model information display mode. However, for example, two switching modes, the operating mode and the monitor mode, may be added. 4 or more modes may be switched.

Further, the mode switching method described in the above embodiment is merely an example, and a mode switching switch may be provided separately, as long as the mode can be switched. Of course.

Further, the modes such as the operation mode and the maintenance mode described in the above embodiment are for switching the display form of the remote controller in particular, and the operation of the water heater itself should be switched together. However, it may not be switched. For example,
When the monitor mode is set, the operation of the water heater may be stopped or may be operable. However, in the monitor mode, it is more convenient for maintenance and the like to enable the operation and display the data of the operation state.

[0052]

As described above, according to the present invention,
When displaying the data content, which consists of a number of items with two or more digits with item numbers, on the remote controller, specify the item number by providing a first switch and a second switch for each digit of the item number. Since the display is made possible, there is an effect that a desired item can be quickly designated from a large number of items and the contents can be easily viewed.

Further, in the case of a remote controller of a water heater, there are some remote controllers having a display section for displaying a temperature (or the amount of hot water) and a display section for displaying the time, and the switch has a temperature (or the amount of hot water) or the like. Some have multiple up / down switches for setting. These up / down switches are used to specify the item number of the monitor information. Especially, one up / down switch is used to set the second digit of the item number, and another up / down switch is used to set the first digit. Therefore, it is possible to quickly specify and set the items of monitor information without providing a separate switch.

Further, the designated number is displayed on the display section for displaying the temperature (or the amount of hot water), and the monitor content corresponding to the number is displayed on the clock display section. There is an effect that information can be displayed.

Further, according to the remote controller of the water heater of the present invention, the hot water is supplied to the data received by the data receiving means for receiving the data which is the information about the model of the water heater from the outside of the water heater. Since it has a storage means for storing the specific specifications of the water heater, in a water heater that can be used by one water heater corresponding to a plurality of models, by receiving data regarding the water heater from the outside by the data receiving means, It is possible to set the specific specifications of the model based on the storage means, and further, the remote controller side can quickly specify the item number and confirm the contents.

[Brief description of drawings]

FIG. 1 is a schematic explanatory diagram of a water heater and a data processing device.

FIG. 2 is an explanatory diagram of code contents.

FIG. 3 is an explanatory diagram showing a configuration of a water heater and a data processing device.

FIG. 4 is an explanatory diagram of a dip data conversion table.

FIG. 5 is an explanatory diagram of a dip data switching table.

FIG. 6 is an explanatory diagram of a remote controller.

FIG. 7 is an explanatory diagram showing a configuration of a remote controller.

FIG. 8 is a flowchart showing the operation of the data processing method.

FIG. 9 is an explanatory diagram of a maintenance monitor mode.

FIG. 10 is an explanatory diagram of a model information display mode.

FIG. 11 is an explanatory diagram of another embodiment.

[Explanation of symbols]

 1 Water Heater 10 Data Processing Device 12 Dip Data Conversion Table 14 Data Transmission Means 21 Data Reception Means 22 Data Storage Means 23 Dip Data Switching Table 30 Remote Controller 31 Operating Means 32 Display Means 37, 38 Hot Water Volume Switch 39, 40 Temperature Switch 41 Time Display unit 42 Second digit display unit of bathtub hot water temperature display unit 43 First digit display unit of bathtub hot water temperature display unit 56 Mode switching unit 57 Display control unit

Claims (3)

[Claims] 1. A remote controller for displaying data relating to a device, which is provided on either the device main body side or the remote controller side, and stores data relating to the device by assigning a number to at least two-digit items or more. Means, a first switch for designating a first digit number of the item number of the content stored in the storage means, and a first switch for designating a second digit number of the item number of the content stored in the storage means 2. A remote controller comprising: a second switch; and a display unit for displaying the item number set by the first switch and the second switch and the data content corresponding to the item number. 2. A remote controller for remotely operating a water heater and displaying information about the water heater, wherein a clock display section for displaying the time and information about the water heater for at least two digits are numbered. And a mode switching unit that switches at least two modes of a remote mode for operating the water heater and a monitor mode for displaying information about the water heater on a monitor. A first switch, which is an up / down switch for setting the temperature (or the amount of hot water) when set, and an up / down switch for setting the temperature (or the amount of hot water), which is provided separately from the first switch. A second switch, which is a down switch, and at least one of the first switch and the second switch. A temperature (or hot water amount) display section for displaying the contents of the temperature (or hot water amount) operated by one of the two in at least two digits, and when the monitor mode is set by the mode switching means, The second digit of the display section is set by the first switch, the first digit of the display section is set by the second switch, and the number set by the first switch and the second switch is displayed by the switch. Display control means for displaying the contents stored in the storage means corresponding to the numbers set by the first switch and the second switch on the clock display portion. A remote controller that is characterized by 3. A remote controller for remotely controlling the water heater and displaying information on the water heater, and a data receiving means for receiving data relating to a specification change of the water heater which is predetermined for each model of the water heater. A clock display for displaying the time, which is connected to a water heater main body having storage means for storing specific specifications of the water heater based on the data received by the data receiving means by assigning numbers to two-digit or more items And a mode switching means for switching at least two modes of an operation mode for remotely operating the water heater and a monitor mode for displaying information on the water heater on a monitor. When the operation mode is set by the mode switching means, In addition, the first switch, which is an up / down switch for setting the temperature (or the amount of hot water), and the first switch are A second switch, which is an up / down switch for setting the temperature (or the amount of hot water), and the temperature (or the amount of hot water) operated by at least one of the first switch and the second switch. ), The temperature (or the amount of hot water) display section for displaying the content of at least two digits or more and the second digit of the display section by the first switch when the monitor mode is set by the mode switching means. Is set, the first digit of the display section is set by the second switch, the number set by the first switch and the second switch is displayed on the display section, and the first digit is set. Display control means for controlling the display of the contents stored in the storage means corresponding to the number set by the switch and the second switch on the clock display part; A remote controller that is equipped with.