JPH0854938A - Hot water supplier - Google Patents

Abstract

PURPOSE:To facilitate a maintenance/inspection work by making an operation part into a maintenance mode by performing an operation which is different from a normal one and making it possible to successively display the detection data of each sensor on a display part. CONSTITUTION:When the maintenance/inspection of a hot water supplier is performed, three switches of a hot water filling buzzer switch 29 and up/down switches 30/31 are simultaneously depressed for five seconds and a main body control part 26 is made into a maintenance mode under a state that a hot water port is opened, a combustion part is burned and a hot water supply is started after the hot water supply switch 28 of a remote controller 27 is turned on at first. Every time the hot water filling buzzer switch 29 is depressed, the code number for the detection data of each sensor at present is displayed by utilizing a clock display part 33. Namely, the resistance value of a cds being a combustion detection sensor 12 and the detection temperature, etc., of a thermistor composing a water supply sensor 23 and a hot water supply sensor 18 are displayed. Therefore, the operating state of each part can be known without using a measuring instrument such as a tester.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply device which enables maintenance and inspection work to be performed very easily by using a remote controller.

[0002]

2. Description of the Related Art Conventionally, in this type of equipment, when performing maintenance / inspection on the performance and function of a component, it is necessary to prepare a measuring instrument according to the function of the component, and at the time of actual operation. It was necessary to prepare the same parts as the parts for the dummy in order to confirm the operation of the parts.

[0003]

As described above, in the conventional device, a plurality of measuring instruments are required for each maintenance / inspection of the components, and it is difficult for a skilled worker to perform the measurement. It also takes time, and parts for dummy are also required to check the operation of parts, and many preparation tools make maintenance and inspection difficult, and depending on the operation timing, the time that can be confirmed is short, There were many people who wanted to simplify maintenance and inspection work because some parts could not be confirmed.

[0004]

The present invention focuses on this point and solves the above-mentioned drawbacks. In particular, the structure is composed of a combustion section equipped with a combustion detection sensor for detecting a combustion state, and A water heater having a heat exchanger to be heated and having at least a water heater sensor and a hot water sensor, and controlling the hot water temperature by adjusting the heating amount of the water heater, and the detection data from each sensor described above. -A main body control unit that updates and stores the data at regular time intervals, an operation unit that has a hot water supply switch and an up / down switch that sets the hot water supply temperature, and a display unit that displays the set hot water supply temperature, It consists of a remote controller that sends and receives settings and detection data to and from the main body control unit, and operates the operation unit in an unusual manner to create a maintenance mode.
Data can be sequentially displayed on the display unit.

[0005]

In performing maintenance / inspection of the water heater, first, the hot water supply switch 28 of the remote controller 27 is turned on and then the hot water supply port 16 is opened to burn the combustion part 3 and start hot water supply. The buzzer switch 29 and the three switches, the up / down switches 30 and 31, are simultaneously pressed for 5 seconds to bring the main body control unit 26 into the maintenance mode. Each time the hot water buzzer switch 29 is pressed, the current detection data of each sensor is displayed by the code number using the clock display section 33, that is, the combustion detection sensor.
It displays the resistance value of cds which is 12, the detected temperature of the thermistor that composes the water supply sensor-23 and the hot water supply sensor-18, and makes it easy to check the operating status of each component without using a measuring instrument such as a tester. It is easy to learn and maintenance and inspection can be easily performed by anyone without requiring skill.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a hot water supply apparatus according to the present invention will be described with reference to a preferred embodiment shown in the drawings. Reference numeral 1 is a can body in which a water supply pipe 2 is wound around an outer peripheral wall, and a combustion section 3 composed of a gun type burner is provided downward in the upper part, and heat which is heated by the combustion heat of the combustion section 3 in the inner lower part. A exchanger 4 is provided.

The combustion unit 3 has a nozzle 8 connected to an oil feeding pipe 7 via an electromagnetic pump 5 and an oil proportional valve 6, and a blower 9
Combustion detection sensor 12 composed of damper motor 11 and the like for controlling combustion air supplied by controlling damper 10 and further comprising cds for detecting combustion state, ignition rod 13, igniter 14 Etc. are provided.

Reference numeral 15 is a hot water supply pipe connecting the heat exchanger 4 and the hot water supply port 16, and a heat exchange sensor 17 for detecting the hot water temperature is provided with a thermistor at the outlet of the heat exchanger 4 and the hot water supply pipe 15 respectively.
Also, a hot water supply sensor-18 is provided. Reference numeral 19 denotes a mixing valve provided in the hot water supply pipe 15 near the hot water supply port 16 for mixing cold water and heated hot water through a bypass pipe 20 branched from the water supply pipe 2 to supply hot water.

Reference numeral 21 is a flow sensor for detecting a water flow provided in the water supply pipe 2 from the water supply port 22 to the can body 1. Reference numeral 23 is a water supply sensor for detecting the water supply temperature, 24 is an oil temperature sensor for detecting the oil temperature, and 25 is an exhaust passage.

Reference numeral 26 denotes a main body control section which is electrically connected to each of the above-mentioned sections and which controls each section based on the detection data from each sensor.
It is updated and stored at intervals of a second, coded, and provided with a receiving and transmitting circuit.

Reference numeral 27 denotes a hot water supply switch 28, a hot water fill buzzer switch 29 for selecting a buzzer at the end of the hot water filling operation, and an operating section 32 having up / down switches 30 and 31 for setting the hot water supply temperature, and the set hot water temperature. Is digitally displayed, or a remote control including a display unit 34 having a clock display unit 33 for displaying the current time is used to transmit setting data to the main body control unit 26 and to detect the detection data from the main body control unit 26.
It has a built-in micro computer (not shown) for storing and displaying data.

Further, with the hot water supply switch 28 in the ON state, the hot water buzzer switch 29 and the up / down switch 30.
・ Press 31 and 5 at the same time for 5 seconds to enter the maintenance mode for maintenance / inspection.
7 together, using the clock display unit 33, the hour display unit 35
The code number of each sensor is displayed in the numbers 1 to 9, and the minute display section 36 displays the data content of each sensor in the number 0 to 99 corresponding to the code number. To do.

Next, when performing maintenance / inspection work on the water heater, hot water supply is started by turning on the hot water supply switch 28 and opening the hot water supply port 16. At this time, the main body control unit 26 performs hot water supply and combustion control in addition to the hot water supply and combustion control. As shown in FIG. 3, the control data of the electrical components such as the oil proportional valve 6 and the detection data of each sensor such as the combustion detection sensor 12 are sampled (step 37), and this is A /
D conversion, that is, data exchange (step 38), and then this data is transmitted to the remote controller 27 (step 39). This repetition is performed at intervals of 7 seconds to always provide the latest data.
Data is transmitted to the remote controller 27.

On the other hand, on the remote controller 27 side, as shown in FIG.
First, the data from the main body control unit 26 is received (step 4
0) In this state, for maintenance / inspection, the maintenance mode is set by pressing the three switches of the water filling buzzer switch 29 and the up / down switches 30, 31 for 5 seconds at the same time (step 41). The display of the display unit 33 is changed from the clock display to the maintenance information display (step 42). First, the hour display unit 35 displays the code number "1" and the minute display unit 36 displays, for example, "10" ( Step 43), combustion detection sensor-1 as shown in FIG.
It indicates that the resistance value of 2 is 10 k ohms.

Further, every time the filling buzzer switch 29 is sequentially pressed, the code number is increased in ascending order to display the contents of FIG. 5, and finally, after the code number "9" is displayed, the filling water is filled. When the buzzer switch 29 is pressed (step 44), the
It becomes the end mode of the mode number "10" (step 45),
In this state, the hot water supply switch 28 is turned off to end the maintenance mode. Therefore, without using a measuring instrument such as a tester, the display unit 34 of the remote controller 27 can be used to know the operation and detection data of each sensor including the electrical components of the water heater, which is extremely convenient and skilled. Maintenance and inspection can be easily performed even if the operator is not.

Further, since the maintenance mode can be switched by a special operation of a normally used switch, a switch dedicated to the maintenance mode is unnecessary, and the circuit structure is simplified and the cost is low. Further, since the maintenance information is displayed separately by the hour display portion 35 and the minute display portion 36 of the clock display portion 33 into the parts and the sensor type and the data, it is very easy to see and the information can be judged instantly. It can be done.

[0017]

In summary, the present invention has a combustion section equipped with a combustion detection sensor for detecting a combustion state, and a heat exchanger heated by the combustion section, and at least a water supply sensor.
And a hot water supply device having a hot water supply sensor, and controlling the hot water supply temperature by adjusting the heating amount of the hot water supply device,
Main body control unit that updates and stores the detected data from the air conditioner at fixed time intervals, operation unit that has a hot water supply switch and up / down switches that set the hot water supply temperature, and a display that displays the set hot water temperature etc. Unit and a remote controller for sending and receiving setting data and detection data to and from the main body control unit. The operation unit is operated in a maintenance mode by performing an unusual operation, and each of the sensors Since it is possible to sequentially display the detection data on the display unit, measuring instruments such as testers are not required during maintenance and inspection of the water heater, and the status of sensors and electrical components can be viewed at a glance using the remote control. It is very easy to use, even if you are not a skilled worker, you can easily perform maintenance and inspection work.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram of a water heater according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the same electrical configuration.

FIG. 3 is a flowchart of the main body control unit.

FIG. 4 is a flowchart of the remote controller.

FIG. 5 is an operation explanatory diagram of the display unit.

[Explanation of symbols]

 3 Combustion Section 4 Heat Exchanger 12 Combustion Detection Sensor-17 Heat Exchange Sensor-18 Hot Water Supply Sensor-21 Flow Sensor-23 Water Supply Sensor-24 Oil Temperature Sensor-26 Main Body Control Section 27 Remote Control 28 Hot Water Switch 29 Hot Water Buzzer Switch 30 Up switch 31 Down switch 33 Clock display section 34 Display section 35 Hour display section 36 Minute display section

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takao Fujita 7-7 Higashishinpo, Sanjo City, Niigata Prefecture

Claims (3)

[Claims] 1. A water heater having a combustion section having a combustion detection sensor for detecting a combustion state, a heat exchanger heated by the combustion section, and having at least a water supply sensor and a hot water supply sensor. The hot water supply temperature is controlled by adjusting the heating amount of the water heater, and the main body control unit that updates and stores the detection data from each sensor at fixed time intervals and the hot water supply switch and the hot water supply temperature are set. An operating unit having an up / down switch and the like, and a display unit for displaying the set hot water supply temperature and the like are provided, and setting and detection data are transmitted to and from the main body control unit.
It consists of a remote controller for transmitting and receiving data, and the operation section is operated in an unusual manner to be a maintenance mode, and the detection data of each sensor can be sequentially displayed on the display section. Water heater. 2. The switching to the maintenance mode is performed by simultaneously pressing a hot water buzzer switch and an up / down switch for a predetermined time while the hot water supply switch is ON. The hot water supply device according to claim 1. 3. The detection data of each sensor is carried out by using a clock display section which normally displays a clock, and the hour display section indicates the type of each sensor and the minute display section. The water heater according to claim 1, wherein the contents of the data are displayed by code numbers.