JPS6410037A - Operation control device for hot water heating machine - Google Patents
Operation control device for hot water heating machineInfo
- Publication number
- JPS6410037A JPS6410037A JP16281287A JP16281287A JPS6410037A JP S6410037 A JPS6410037 A JP S6410037A JP 16281287 A JP16281287 A JP 16281287A JP 16281287 A JP16281287 A JP 16281287A JP S6410037 A JPS6410037 A JP S6410037A
- Authority
- JP
- Japan
- Prior art keywords
- hot water
- valve
- heat exchanger
- turned
- temperature sensor
- 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
Landscapes
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
PURPOSE:To prevent piping from breaking due to expansion caused by the icing of water within the piping and to reduce the power consumption of a valve, by controlling the valve and a fan motor according to temperatures detected by both a heat exchanger temperature sensor and a room temperature sensor. CONSTITUTION:When an operation switch is on, a control base plate 8 discriminates whether or not room temperatures detected by a room temperature sensor 7 are lower than a predetermined temperature, and in case of YES, a valve 1 is turned off and opened to pass hot water through a hot water circuit 3, while a fan motor 6 is turned on to blow air to a heat exchanger 2 for hot water, thus carrying out heating operation. In case of NO, while the fan motor 6 is turned off, the control base plate 8 discriminates whether or not heat exchanger temperatures detected by a temperature sensor 5 for the heat exchanger are higher than a predetermined temperature of the heat exchanger, and in case of YES, the valve 1 is turned on and closed to shut off the flow of hot water into the hot water circuit 3. When an anti-icing system is applied, the valve 1 is in an off and open state because the operation switch is off and a heat source machine 13 is not operated to heat water. Accordingly, when external air temperatures fall below the freezing point and a pump 12 operates automatically by means of the anti-icing system, the valve 1 is always in an open state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16281287A JPS6410037A (en) | 1987-06-30 | 1987-06-30 | Operation control device for hot water heating machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16281287A JPS6410037A (en) | 1987-06-30 | 1987-06-30 | Operation control device for hot water heating machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6410037A true JPS6410037A (en) | 1989-01-13 |
Family
ID=15761691
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16281287A Pending JPS6410037A (en) | 1987-06-30 | 1987-06-30 | Operation control device for hot water heating machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6410037A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4996147A (en) * | 1987-07-31 | 1991-02-26 | Kyowa Hakko Kogyo Co., Ltd. | Process for producing L-threonine by fermentation |
| US5017483A (en) * | 1986-02-20 | 1991-05-21 | Kyowa Hakko Kogyo Co., Ltd. | Process for producing L-threonine |
-
1987
- 1987-06-30 JP JP16281287A patent/JPS6410037A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5017483A (en) * | 1986-02-20 | 1991-05-21 | Kyowa Hakko Kogyo Co., Ltd. | Process for producing L-threonine |
| US4996147A (en) * | 1987-07-31 | 1991-02-26 | Kyowa Hakko Kogyo Co., Ltd. | Process for producing L-threonine by fermentation |
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