JPS54106953A - Heat pump type heating-cooling device - Google Patents
Heat pump type heating-cooling deviceInfo
- Publication number
- JPS54106953A JPS54106953A JP1236978A JP1236978A JPS54106953A JP S54106953 A JPS54106953 A JP S54106953A JP 1236978 A JP1236978 A JP 1236978A JP 1236978 A JP1236978 A JP 1236978A JP S54106953 A JPS54106953 A JP S54106953A
- Authority
- JP
- Japan
- Prior art keywords
- performance
- closed
- preset level
- switch
- 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
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
PURPOSE: To provide appropriate performance for heating and cooling respectively, by making the cycle variable interms of performance.
CONSTITUTION: A capacity selection switch 19 is fitted to close the circuit when the outdoor temperature drops below a preset level by means of temperature sensor. The switch 19 is not closed when the temperature is above a preset level during the heating operation and s shut-off valve 11 is kept open just as during the cooling operation to provide a reduced performance. When the heating load is large, that is, the outdoor temperature is below the preset level, the switch 19 is closed and the shut- off valve 11 is also closed to prevent the refrigerant in a compressor 1 from returning to a suction pipe 8, which allows the device to provide large performance.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1236978A JPS54106953A (en) | 1978-02-08 | 1978-02-08 | Heat pump type heating-cooling device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1236978A JPS54106953A (en) | 1978-02-08 | 1978-02-08 | Heat pump type heating-cooling device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54106953A true JPS54106953A (en) | 1979-08-22 |
Family
ID=11803343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1236978A Pending JPS54106953A (en) | 1978-02-08 | 1978-02-08 | Heat pump type heating-cooling device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54106953A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62751A (en) * | 1985-06-25 | 1987-01-06 | Matsushita Electric Ind Co Ltd | Control device of air conditioner |
-
1978
- 1978-02-08 JP JP1236978A patent/JPS54106953A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62751A (en) * | 1985-06-25 | 1987-01-06 | Matsushita Electric Ind Co Ltd | Control device of air conditioner |
JPH0463977B2 (en) * | 1985-06-25 | 1992-10-13 | Matsushita Electric Ind Co Ltd |
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