JPS62760A - water heater - Google Patents

Abstract

PURPOSE:To permit to switch hot-water temperature setting and preference, effected by a plurality of remote control devices, without spoiling convenience of handling by a method wherein the setting of discharging hot-water temperature, effected by the other remote control device, is made impossible for a predetermined period of time at every time when the same temperature is set by the setting means of one remote control device. CONSTITUTION:A lamp 18, which indicates preference, of the remote control device 10 is confirmed, and if the lamp is lightened, there is preference in the remote control device 10, therefore, the set value of hot-water temperature is set by a hot-water temperature set key 19 on the basis of a hot-water temperature set lamp 20, indicating a present set value. Once the set value is set, the lamp 18, which indicates preference, of the other remote control device is not lightened and the setting effected by the set key 19 can not be effective when the preference is requested by another remote controller before a predetermined period of time has elapsed. According to this constitution, the change of setting, effected by the other remote control device 10 during existence of preference, may be prevented while the movement of preference requested by the other remote control device can be effected after the predetermined period of time has elapsed, therefore, the discharging hot-water temperature may be set freely by the other remote control device 10.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a remote control device for a water heater.

2. Description of the Related Art As shown in FIG. 4, a conventional water heater of this kind has a water heater 3 having a heating means 1 and a heat exchanger 2 heated by the heating means 1, and a plurality of hot water pipes 4. It is configured so that hot water is supplied to the hot water tap 5. The main body control device 6 controls the combustion state of the water heater 3, and also connects the main remote controller 7 and the flow remote controller 8 individually via multi-core cables.

As shown in FIGS. 5 and 6, the main remote controllers 7 and 70 and the remote controller 8 each have means for setting the hot water temperature, and the set value is input to the main body controller 6 through a dedicated line. The flow controller 7 side is provided with a changeover switch 9 for priority of the hot water temperature, and the changeover switch 9 is used to override the setting on the main controller 7 side and select one of the set values. Problems to be Solved However, in the above configuration, when the selector switch 9 is set to the fluoro remote control 8 side, the hot water temperature cannot be set on the main remote controller 7 side, so when the main remote controller is used, the selector switch is accidentally set. If it is left on the floating remote controller 8 side, the user must go to the floating remote controller 8 and change the changeover switch 9, which poses a problem of poor usability. Furthermore, when the number of remote controllers increases to three or more, there is a problem in that switching the priority of the hot water temperature becomes complicated.

The present invention solves such conventional problems, and aims to enable hot water temperature settings and priority switching using a plurality of remote control devices without impairing usability.

Means for Solving the Problems In order to solve the above problems, the water heater of the present invention includes a water heater having a heating means, a heat exchanger heated by the heating means, and hot water heated by the water heater. a main body control device that controls the combustion state of the water heater, a display means for informing the operating state of the water heater and the setting of the hot water outlet temperature, and a setting means for setting the hot water outlet temperature. The apparatus comprises a plurality of remote control devices that perform data transmission with the device, and each time the hot water temperature is set by the setting means of the remote control device, the hot water temperature is set by transmitting the set value to the main body control device, and - This device has a configuration in which once the prenatal membrane constant value is set, settings from other remote control devices are disabled for a certain period of time.

Effects of the present invention With the above-described configuration, when the hot water temperature is set by the setting means of the remote control device, the remote control room transmits the set value to the main body control device each time, and the main body control device sets the hot water temperature. , After that, it is impossible to set the hot water temperature from other remote control devices for a certain period of time, so multiple remote control devices can be connected arbitrarily, and the settings can be changed from any remote control device. Once the value is set, settings from other remote control devices are not possible, which prevents the hot water temperature from being changed from other remote control devices during use.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

In FIG. 1, a heating means 1 heats a heat exchanger 2, and hot water heated by the heat exchanger 2 is supplied to a hot water tap 5 through a hot water supply pipe 4. The main body control device 6 controls the heating means 1 and controls the temperature of hot water discharged from the heat exchanger 2. Remote control device 10
is connected to the main body control device 6 in the form of a bus, and exchanges data between each other. The data exchange is sent to the other party when the operating state of the water heater 3 changes or when a priority request or setting for the hot water temperature is made. FIG. 2 shows the remote control device 10
FIG. The receiving circuit converts the received waveform and inputs it to the microcomputer 12.

The transmission circuit 13 converts the transmission data from the microcomputer 12 into a waveform and transmits it as a transmission waveform. The display means 14 displays the operating state of the water heater 3 and the setting of the hot water temperature based on the data sent from the main body control device 6. The setting means 15 is for requesting priority to be sent to the water heater 3 and setting a set value for the hot water temperature.

An embodiment of the remote control device 10 is shown in FIG. 3, and the operation of the water heater of the present invention will be explained. When the water heater 3 is ready for operation, the power lamp 16 is turned on by transmitting data instructing it to turn on from the main body control device. The combustion lamp 17 similarly lights up while the heating means 1 is in combustion, and indicates the operating state of the water heater 3. To set the hot water temperature, first check the priority lamp 18. If it is lit, you have priority, so press the hot water temperature setting key 19 to request the hot water temperature setting lamp 20, which displays the current setting value. Then set the setting value. If the priority lamp 18 is not lit, first press the priority key 21 to request priority, confirm that the priority lamp is lit, and then press the hot water temperature setting key 1.
Operate 9. Therefore, if the priority lamp 18 is not lit, even if the hot water temperature setting key 19 is pressed, no setting change is performed. The set value of the hot water temperature is displayed on the hot water temperature setting lamp 20, and the hot water temperature setting value is displayed on the hot water temperature setting lamp 20.
The setting value is updated by 0. When the setting value is updated, the main body control device 6 updates other connected remote control devices 1.
Send the setting value to 0. Therefore, the hot water temperature setting lamps 20 of the other remote control devices 10 also change to the changed value.

Each remote control device 10 is provided with an address,
The main body control device 6U and the remote control device 100 are distinguished by addresses. - When a value is set, requests for priority from other remote control devices 10 are ignored for a certain period of time, and priority is not transferred. Therefore setting +
1ii is set and if another remote control device requests priority before a certain period of time has elapsed, the priority lamp 18 will not light up and settings using the setting key 19 will not be possible. This configuration prevents the settings from being changed by another remote control device 10 during use, and after a certain period of time has elapsed, the priority can be moved by a priority request from another remote control device 10. Therefore, the hot water temperature can be freely set from another remote control device 10, which has the effect of improving usability.

Effects of the Invention As described above, the water heater of the present invention provides the following effects.

(1) Each time the setting means of the remote control device sets the hot water temperature, it transmits the set value to the main body control device, and when the set value is updated, the main body control device transmits the set value to another remote control device. Since the temperature is transmitted, the hot water temperature can be set using a plurality of remote control devices.

(When switching priority between two remote control devices, after the set value is set, priority requests from other remote control devices are ignored for a certain period of time, so once priority is given, for a certain period of time This prevents the settings from being changed by another remote control device during use.

[Brief explanation of drawings]

Fig. 1 is a block diagram of a water heater that is an embodiment of the present invention, Fig. 2 is a block diagram of the remote control device, Fig. 3 is a front view of the remote control device, and Fig. 4 is a conventional water heater. FIG. 5 is a front view of a conventional main remote controller, and FIG. 6 is a front view of a conventional flow remote controller. 1... Heating means, 2... Heat exchanger, a
...Water heater, 4...Hot water pipe, 5...
...Hot water tap, 6... Main body control device, 10...
...Remote control device. Name of agent: Patent attorney Toshio Nakao, 1st person, 2nd person
Figure 3 Figure 4 Figure 5

Claims (1)

[Claims] A water heater having a heating means and a heat exchanger heated by the heating means, a hot water pipe and a hot water tap that guide hot water heated by the water heater, and a main body control device that controls the combustion state of the water heater. , a display means for notifying the operating status of the water heater and the setting of the hot water temperature, and a setting means for setting the hot water temperature, and a plurality of remote control devices for transmitting data between the main body control device, The setting is performed by transmitting the set value to the main body control device each time the hot water temperature is set by the setting means of the remote control device. A water heater that has a time period during which setting values cannot be set from the control device.