JPS6433481A - Defrosting method of heat pump type air conditioner - Google Patents

Defrosting method of heat pump type air conditioner

Info

Publication number
JPS6433481A
JPS6433481A JP18740287A JP18740287A JPS6433481A JP S6433481 A JPS6433481 A JP S6433481A JP 18740287 A JP18740287 A JP 18740287A JP 18740287 A JP18740287 A JP 18740287A JP S6433481 A JPS6433481 A JP S6433481A
Authority
JP
Japan
Prior art keywords
heat exchanger
outdoor heat
defrosting
way valve
compressor
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.)
Granted
Application number
JP18740287A
Other languages
Japanese (ja)
Other versions
JPH0799298B2 (en
Inventor
Kunimori Sekigami
Takao Shiina
Ichiro Kamimura
Koji Nagae
Yoshio Sekiguchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP62187402A priority Critical patent/JPH0799298B2/en
Publication of JPS6433481A publication Critical patent/JPS6433481A/en
Publication of JPH0799298B2 publication Critical patent/JPH0799298B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Air Conditioning Control Device (AREA)

Abstract

PURPOSE: To prevent growth of ice by performing a hot gas bypass operation to guide a part of a refrigerant discharged from a compressor to an outdoor heat exchanger and a reverse cycle operation by the switching of a four-way valve according to the quantity of frost on the outdoor heat exchanger to completely remove frost. CONSTITUTION: When an outdoor heat exchanger 2 is frosted during the heating operation and a control 9 receives a detection signal from a sensor 10, the interval time of the defrosting operation is counted by a timer means in the controller 11. When the counted time of the timer is longer than 40 min., an open/close valve 7 is turned ON to accomplish defrosting while making a heating by a hot gas bypass operation. On the other hand, when the counted time of the timer is shorter than 40 min, a four-way valve 4 is turned OFF to be switched over the position indicated by the dotted line while an outdoor fan 8 is turned OFF and with a breezing operation by a room fan 9 starting, a refrigerant discharged from a compressor 1 is fed back to a compressor 1 via the four-way valve 4, the outdoor heat exchanger 2, a decompression element 5, a room heat exchanger 3 and the four-way valve 4, a reverse cycle operation whereby defrosting is accomplished. The breezing operation by the room fan 7 enhances a defrosting capacity to remove the frost from the outdoor heat exchanger 2 thereby eliminating any growth of ice.
JP62187402A 1987-07-27 1987-07-27 Defrosting method for heat pump type air conditioner Expired - Fee Related JPH0799298B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62187402A JPH0799298B2 (en) 1987-07-27 1987-07-27 Defrosting method for heat pump type air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62187402A JPH0799298B2 (en) 1987-07-27 1987-07-27 Defrosting method for heat pump type air conditioner

Publications (2)

Publication Number Publication Date
JPS6433481A true JPS6433481A (en) 1989-02-03
JPH0799298B2 JPH0799298B2 (en) 1995-10-25

Family

ID=16205401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62187402A Expired - Fee Related JPH0799298B2 (en) 1987-07-27 1987-07-27 Defrosting method for heat pump type air conditioner

Country Status (1)

Country Link
JP (1) JPH0799298B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010164257A (en) * 2009-01-16 2010-07-29 Mitsubishi Electric Corp Refrigerating cycle device and method of controlling the refrigerating cycle device
JP2011144960A (en) * 2010-01-12 2011-07-28 Mitsubishi Electric Corp Air conditioner and method of defrosting operation of air conditioner
WO2015162696A1 (en) * 2014-04-22 2015-10-29 日立アプライアンス株式会社 Air conditioner and defrosting operation method therefor
JP2019215128A (en) * 2018-06-13 2019-12-19 三菱重工サーマルシステムズ株式会社 Air conditioner, outdoor heat exchanger unit and control method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030965A (en) * 1983-07-29 1985-02-16 シャープ株式会社 Method of defrosting air conditioner
JPS63213765A (en) * 1987-02-27 1988-09-06 ダイキン工業株式会社 Refrigerator

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6030965A (en) * 1983-07-29 1985-02-16 シャープ株式会社 Method of defrosting air conditioner
JPS63213765A (en) * 1987-02-27 1988-09-06 ダイキン工業株式会社 Refrigerator

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010164257A (en) * 2009-01-16 2010-07-29 Mitsubishi Electric Corp Refrigerating cycle device and method of controlling the refrigerating cycle device
JP2011144960A (en) * 2010-01-12 2011-07-28 Mitsubishi Electric Corp Air conditioner and method of defrosting operation of air conditioner
WO2015162696A1 (en) * 2014-04-22 2015-10-29 日立アプライアンス株式会社 Air conditioner and defrosting operation method therefor
CN106461253A (en) * 2014-04-22 2017-02-22 江森自控日立空调技术（香港）有限公司 Air conditioner and defrosting operation method therefor
JPWO2015162696A1 (en) * 2014-04-22 2017-04-13 ジョンソンコントロールズ ヒタチ エア コンディショニング テクノロジー（ホンコン）リミテッド Air conditioner and its defrosting operation method
EP3136009A4 (en) * 2014-04-22 2017-11-22 Johnson Controls-Hitachi Air Conditioning Technology (Hong Kong) Limited Air conditioner and defrosting operation method therefor
US10473353B2 (en) 2014-04-22 2019-11-12 Hitachi-Johnson Controls Air Conditioning, Inc. Air conditioner and defrosting operation method therefor
CN106461253B (en) * 2014-04-22 2020-01-14 日立江森自控空调有限公司 Air conditioner and defrosting operation method thereof
JP2019215128A (en) * 2018-06-13 2019-12-19 三菱重工サーマルシステムズ株式会社 Air conditioner, outdoor heat exchanger unit and control method

Also Published As

Publication number Publication date
JPH0799298B2 (en) 1995-10-25

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees