JPS5758023A - Control circuit of hot water circulating device - Google Patents
Control circuit of hot water circulating deviceInfo
- Publication number
- JPS5758023A JPS5758023A JP13385880A JP13385880A JPS5758023A JP S5758023 A JPS5758023 A JP S5758023A JP 13385880 A JP13385880 A JP 13385880A JP 13385880 A JP13385880 A JP 13385880A JP S5758023 A JPS5758023 A JP S5758023A
- Authority
- JP
- Japan
- Prior art keywords
- switch
- shunt
- primary
- heater
- state
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract 3
- 230000005284 excitation Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
PURPOSE: To improve the safety in checking and repairing work by a method wherein the device can not be restarted unless a starting switch is operated over again to start, after once a water leakage sensing switch or the like acts to stop the device in the captioned circuit for floor heating panel or the like.
CONSTITUTION: If water leak occurs either at a circulating pipe 2 or at a heater tank 4, the level switch 5 is OFF and the excitation of a main relay 7 is stopped, resulting in stopping the electric power supply to a circulating pump 11 and a heater 13. At this time, the current continuously flows within a secondary shunt, in spite of the normally open contact 7a' of the main relay 7 being OFF, because the secondary shunt is kept in self-holding state due to the normally open contact 8a of a primary auxiliary relay 8, resulting in keeping the normally closed contact 8b of a primary shunt in OFF state. Even if the lefel switch 5 automatically returns to ON state during the checking and repairing work under the condition as described above, the circulating pump 11 and the heater 13 can be restarted, unless the normally closed contact 8b in the primary shunt of the primary auxiliary relay 8 is reset over again to ON state after a switch 10 in once switched OFF.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13385880A JPS5758023A (en) | 1980-09-22 | 1980-09-22 | Control circuit of hot water circulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13385880A JPS5758023A (en) | 1980-09-22 | 1980-09-22 | Control circuit of hot water circulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5758023A true JPS5758023A (en) | 1982-04-07 |
Family
ID=15114680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13385880A Pending JPS5758023A (en) | 1980-09-22 | 1980-09-22 | Control circuit of hot water circulating device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5758023A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6392119U (en) * | 1986-12-03 | 1988-06-15 | ||
| WO2001001042A1 (en) * | 1999-06-24 | 2001-01-04 | Adrian John Nixon | A thermal isolation device |
| KR100707965B1 (en) * | 2006-07-07 | 2007-04-16 | 임희섭 | Hot water pipe structure with safety device |
-
1980
- 1980-09-22 JP JP13385880A patent/JPS5758023A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6392119U (en) * | 1986-12-03 | 1988-06-15 | ||
| WO2001001042A1 (en) * | 1999-06-24 | 2001-01-04 | Adrian John Nixon | A thermal isolation device |
| KR100707965B1 (en) * | 2006-07-07 | 2007-04-16 | 임희섭 | Hot water pipe structure with safety device |
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