JPS5486839A - Heating/cooling device - Google Patents
Heating/cooling deviceInfo
- Publication number
- JPS5486839A JPS5486839A JP15443377A JP15443377A JPS5486839A JP S5486839 A JPS5486839 A JP S5486839A JP 15443377 A JP15443377 A JP 15443377A JP 15443377 A JP15443377 A JP 15443377A JP S5486839 A JPS5486839 A JP S5486839A
- Authority
- JP
- Japan
- Prior art keywords
- frost
- outdoor
- output
- heat exchanger
- heating
- 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 put an air-cooled heat pump type air conditioner into defrost operation only when frost is actually developed.
CONSTITUTION: During the heating operation of an air-cooled heat pump type air conditioner, refrigerant discharged from a compressor 1 is circulated through a 4-way valve 2, indoor heat exchanger 3, check valve 4, reducing device 6 for heating, outdoor heat exchanger 8, 4-way valve 2 and accumulator 9 and returns to the compressor 1. The output of a temperature sensor 10 attached to the outdoor heat exchanger 8 on which frost is developed during the heating operation as the outdoor temperature declines and the output of a temperature sensor 17 for sensing an outdoor dry bulb are put in a multiplexer 11, and its output is sent through an AD converter 12 to an operation control unit 13 which actuates a defrost system through a relay 16 after discriminating the development of frost.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15443377A JPS5486839A (en) | 1977-12-23 | 1977-12-23 | Heating/cooling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15443377A JPS5486839A (en) | 1977-12-23 | 1977-12-23 | Heating/cooling device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5486839A true JPS5486839A (en) | 1979-07-10 |
Family
ID=15584070
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15443377A Pending JPS5486839A (en) | 1977-12-23 | 1977-12-23 | Heating/cooling device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5486839A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538518A1 (en) * | 1982-12-22 | 1984-06-29 | Elf Aquitaine | METHOD AND DEVICE FOR MONITORING AND CONTROLLING A EVAPORATOR |
-
1977
- 1977-12-23 JP JP15443377A patent/JPS5486839A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2538518A1 (en) * | 1982-12-22 | 1984-06-29 | Elf Aquitaine | METHOD AND DEVICE FOR MONITORING AND CONTROLLING A EVAPORATOR |
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