JPS6467577A - Multiple type heat pump type air conditioner - Google Patents
Multiple type heat pump type air conditionerInfo
- Publication number
- JPS6467577A JPS6467577A JP22450387A JP22450387A JPS6467577A JP S6467577 A JPS6467577 A JP S6467577A JP 22450387 A JP22450387 A JP 22450387A JP 22450387 A JP22450387 A JP 22450387A JP S6467577 A JPS6467577 A JP S6467577A
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- temp
- outdoor heat
- heating operation
- refrigerant
- 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 efficiently defrost in a short time to improve the air heating operation availability by providing two compressors on an outdoor unit and operating the two compressors simultaneously for defrosting when an outdoor heat exchanger is frosted due to heating operation. CONSTITUTION: In the heating operation, a refrigerant condensed in an indoor heat exchanger 36 passes through a check valve 38 and a refrigerant controller 34, expands at an expansion valve 31, flows into an outdoor heat exchanger 29 and flows to a suction of a compressor 23 through a four-way valve 27. When the outdoor heat exchanger 29 is frosted as the outside temp. is low in such heating operation, a temp. sensor 43 detects a decrease of temp. in the outdoor heat exchanger 29, an operation controller 41 makes the heat exchanger function 29 as a condenser to melt frost with the heat of a compressed and high temp. refrigerant. In the defrosting operation the two compressors 23, 24 are simultaneously operated so that a large amount of the high temp. high pressure refrigerant can be fed to the outdoor heat exchanger 29 to quickly defrost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22450387A JPS6467577A (en) | 1987-09-08 | 1987-09-08 | Multiple type heat pump type air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22450387A JPS6467577A (en) | 1987-09-08 | 1987-09-08 | Multiple type heat pump type air conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6467577A true JPS6467577A (en) | 1989-03-14 |
Family
ID=16814818
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22450387A Pending JPS6467577A (en) | 1987-09-08 | 1987-09-08 | Multiple type heat pump type air conditioner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6467577A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102003854A (en) * | 2010-12-21 | 2011-04-06 | 哈尔滨工业大学 | Auxiliary compressor defrosting system for air source heat pump |
CN104764087A (en) * | 2014-01-07 | 2015-07-08 | 海尔集团公司 | Two-stage heating air conditioning system with defrosting function and control method thereof |
JPWO2016121103A1 (en) * | 2015-01-30 | 2017-04-27 | 三菱電機株式会社 | Refrigeration cycle equipment |
-
1987
- 1987-09-08 JP JP22450387A patent/JPS6467577A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102003854A (en) * | 2010-12-21 | 2011-04-06 | 哈尔滨工业大学 | Auxiliary compressor defrosting system for air source heat pump |
CN104764087A (en) * | 2014-01-07 | 2015-07-08 | 海尔集团公司 | Two-stage heating air conditioning system with defrosting function and control method thereof |
CN104764087B (en) * | 2014-01-07 | 2017-11-28 | 海尔集团公司 | A kind of two-stage heating air conditioner system for possessing defrosting function and its control method |
JPWO2016121103A1 (en) * | 2015-01-30 | 2017-04-27 | 三菱電機株式会社 | Refrigeration cycle equipment |
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