JPS54154145A - Defrosting control circuit for air-cooled heat pump type chiller unit - Google Patents
Defrosting control circuit for air-cooled heat pump type chiller unitInfo
- Publication number
- JPS54154145A JPS54154145A JP6232678A JP6232678A JPS54154145A JP S54154145 A JPS54154145 A JP S54154145A JP 6232678 A JP6232678 A JP 6232678A JP 6232678 A JP6232678 A JP 6232678A JP S54154145 A JPS54154145 A JP S54154145A
- Authority
- JP
- Japan
- Prior art keywords
- defrosting
- time
- pressure
- started
- switch
- 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
- Defrosting Systems (AREA)
Abstract
PURPOSE: A defrosting control circuit wherein the defrosting is started after a predetermined lapse of time through the function of a defrosting thermostat and a defrosting time-limit relay, comprising a high-pressure pressure switch which finish the defrosting when the pressure rises during the limit time and a time-limit relay which finish the defrosting when the pressure does not rise during the limit time.
CONSTITUTION: With a predetermined lapse of time after heating is started, a decider DS detects the frosting based on the temperature drop in an air flow-side heat exchanger, a contact is opened, a blower switch 2 is cut off, and a blower is stopped. A four-way selector valve 5 is changed over, defrosting is started, and a time-limit relay 4 is fed with power for continuing the defrosting. When the decier DS has returned and the water temperature is high, the pressure rises, a high- pressure pressure switch HP2 operates, power is fed to the switch 2 to drive the blower, the valve 5 is changed over, defrosting is finished, and heating is started. When the water temperature is low and a predetermined time has passed without rise in the pressure, the relay 4 operates, the switch 2 is fed with power to drive the blower, the valve 5 is changed over, defrosting is finished, and heating is started.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6232678A JPS54154145A (en) | 1978-05-26 | 1978-05-26 | Defrosting control circuit for air-cooled heat pump type chiller unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6232678A JPS54154145A (en) | 1978-05-26 | 1978-05-26 | Defrosting control circuit for air-cooled heat pump type chiller unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54154145A true JPS54154145A (en) | 1979-12-05 |
Family
ID=13196892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6232678A Pending JPS54154145A (en) | 1978-05-26 | 1978-05-26 | Defrosting control circuit for air-cooled heat pump type chiller unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54154145A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57182041A (en) * | 1981-04-30 | 1982-11-09 | Sharp Corp | Heat pump type air conditioner |
-
1978
- 1978-05-26 JP JP6232678A patent/JPS54154145A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57182041A (en) * | 1981-04-30 | 1982-11-09 | Sharp Corp | Heat pump type air conditioner |
JPS6134054B2 (en) * | 1981-04-30 | 1986-08-05 | Sharp Kk |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS54154145A (en) | Defrosting control circuit for air-cooled heat pump type chiller unit | |
JPS575582A (en) | Refrigerator controller | |
JPS57174641A (en) | Air cooling type refrigerating apparatus | |
JPS572946A (en) | Heat pump type air conditioning apparatus | |
JPS5777845A (en) | Air conditioner | |
JPS5661528A (en) | Controlling circuit for air-cooled heat pump type air conditioner | |
JPS5475849A (en) | Operating controller for air conditioner | |
JPS5620947A (en) | Defrosting control apparatus | |
JPS55153886A (en) | Oil-cooled compressor | |
JPS5520334A (en) | Indoor fan control system for heat-pump type air-conditioning device | |
JPS5579950A (en) | Refrigerator | |
JPS5912520Y2 (en) | Refrigerator control device | |
JPS5618240A (en) | Defrosting control apparatus | |
JPS5575148A (en) | Multiple type air conditioner | |
JPS5535859A (en) | Air conditioner | |
JPS5784946A (en) | Automatic controlling device of heat accumulator | |
JPS6244286Y2 (en) | ||
JPS54115454A (en) | Defrosting control system | |
JPS57438A (en) | Method of controlling operation of air conditioner | |
JPS54150835A (en) | Air conditioner | |
JPS54106953A (en) | Heat pump type heating-cooling device | |
JPS5618241A (en) | Defrosting control apparatus | |
JPS5674545A (en) | Controller of airconditioner | |
JPS5668742A (en) | Air conditioner system | |
JPS57172126A (en) | Air cooling heat pump unit |