JPS5697747A - Controlling circuit for water heater - Google Patents
Controlling circuit for water heaterInfo
- Publication number
- JPS5697747A JPS5697747A JP107180A JP107180A JPS5697747A JP S5697747 A JPS5697747 A JP S5697747A JP 107180 A JP107180 A JP 107180A JP 107180 A JP107180 A JP 107180A JP S5697747 A JPS5697747 A JP S5697747A
- Authority
- JP
- Japan
- Prior art keywords
- input
- comparator
- voltage
- water
- capacitor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
PURPOSE: To prevent an oxygen deficiency accident from occurring by a method wherein a timer function for measuring the operating time of the water heater is provided so as to forcibly stop combustion when the heater has continuously been used for a predetermined period of time.
CONSTITUTION: When a hot-water supply cock is opend to allow water to flow, a water-pressure responsive valve closes a switch 2 to bring a controlling circuit into operation. That is, a capacitor 3 is first charged through a resistance 6, so that the voltage at an input 21b of a comparator 21 increases gradually and the output 21e changes from LOW to HIGH when the voltage surpasses that at an input 21a. As a resuslt, charging of a capacitor 4 is started, and then comparators 22, 23 are operated in a similar manner. In this case, when the voltage at an input 23a of a comparator 23 becomes higher than that at an input 23b, the output 23e of the comparator 23 changes from HIGH to LOW, thereby turning on a light-emitting diode 16 and operating a buzzer 17. A relay 18 opens a series circuit of a thermocouple 19 and a thermo-valve 20, thereby stopping the combustion operation.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP107180A JPS5697747A (en) | 1980-01-09 | 1980-01-09 | Controlling circuit for water heater |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP107180A JPS5697747A (en) | 1980-01-09 | 1980-01-09 | Controlling circuit for water heater |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5697747A true JPS5697747A (en) | 1981-08-06 |
Family
ID=11491281
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP107180A Pending JPS5697747A (en) | 1980-01-09 | 1980-01-09 | Controlling circuit for water heater |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5697747A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59148948U (en) * | 1983-03-25 | 1984-10-04 | 株式会社前田製作所 | dental gas burner |
JPS59170753U (en) * | 1983-04-25 | 1984-11-15 | パロマ工業株式会社 | Device to prevent long-term continuous use of combustor |
JPS6060555U (en) * | 1983-09-30 | 1985-04-26 | 株式会社ハ−マン | Open combustion equipment with combustion safety device |
JPS62206321A (en) * | 1986-03-04 | 1987-09-10 | Matsushita Electric Ind Co Ltd | Combustion device |
JPH04306414A (en) * | 1991-01-24 | 1992-10-29 | Toshiba Home Techno Kk | Burner controller |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS495657A (en) * | 1972-05-04 | 1974-01-18 | ||
JPS5310344U (en) * | 1976-07-07 | 1978-01-28 |
-
1980
- 1980-01-09 JP JP107180A patent/JPS5697747A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS495657A (en) * | 1972-05-04 | 1974-01-18 | ||
JPS5310344U (en) * | 1976-07-07 | 1978-01-28 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59148948U (en) * | 1983-03-25 | 1984-10-04 | 株式会社前田製作所 | dental gas burner |
JPS59170753U (en) * | 1983-04-25 | 1984-11-15 | パロマ工業株式会社 | Device to prevent long-term continuous use of combustor |
JPH0223971Y2 (en) * | 1983-04-25 | 1990-06-29 | ||
JPS6060555U (en) * | 1983-09-30 | 1985-04-26 | 株式会社ハ−マン | Open combustion equipment with combustion safety device |
JPS62206321A (en) * | 1986-03-04 | 1987-09-10 | Matsushita Electric Ind Co Ltd | Combustion device |
JPH04306414A (en) * | 1991-01-24 | 1992-10-29 | Toshiba Home Techno Kk | Burner controller |
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