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JPS6475842A - Defrosting method for air conditioner - Google Patents

Defrosting method for air conditioner

Info

Publication number
JPS6475842A
JPS6475842A JP62229520A JP22952087A JPS6475842A JP S6475842 A JPS6475842 A JP S6475842A JP 62229520 A JP62229520 A JP 62229520A JP 22952087 A JP22952087 A JP 22952087A JP S6475842 A JPS6475842 A JP S6475842A
Authority
JP
Japan
Prior art keywords
heat exchanger
room temperature
outdoor heat
thermistor
defrosting
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
JP62229520A
Other languages
Japanese (ja)
Other versions
JP2650920B2 (en
Inventor
Tomomichi Kaneko
Fumio Iwabuchi
Atsushi Otsuka
Masashi Arakawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP62229520A priority Critical patent/JP2650920B2/en
Publication of JPS6475842A publication Critical patent/JPS6475842A/en
Application granted granted Critical
Publication of JP2650920B2 publication Critical patent/JP2650920B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To control the amount of frosting to the minimum so as to reduce the drop in the room temperature during the space heating operation by performing a defrosting operation for the outdoor heat exchanger as the indoor fan is being operated at a very slow speed when the outdoor heat exchanger is frosted and the room temperature reaches the set temperature. CONSTITUTION:When a heating operation is performed under a low outside temperature condition and an outdoor heat exchanger thermistor 13 detects that the outdoor heat exchanger 5 is frosted, i.e. the heat exchanger temperature became lower than the set temperature and a room temperature thermistor 12 sends out a signal that the room temperature reached the set room temperature, the indoor fan 3 shifts to a very slow speed operation by the action of the indoor control section 10, and the outdoor control section 10 which receives signals from the indoor side and the frosting signal causes the outdoor fan 8 to be stopped and closes a two-way valve 4. As a result, gas delivered by the compressor flows directly to the outdoor heat exchanger 5 to perform defrosting. The heat exchanger thermistor 13 sends out a signal that the defrosting is completed. The defrosting operation, however, is continued until the room temperature thermistor 12 sends out a signal to resume the heating operation, and thereafter, a normal heating operation is resumed.
JP62229520A 1987-09-16 1987-09-16 Defrosting method for air conditioner Expired - Lifetime JP2650920B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62229520A JP2650920B2 (en) 1987-09-16 1987-09-16 Defrosting method for air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62229520A JP2650920B2 (en) 1987-09-16 1987-09-16 Defrosting method for air conditioner

Publications (2)

Publication Number Publication Date
JPS6475842A true JPS6475842A (en) 1989-03-22
JP2650920B2 JP2650920B2 (en) 1997-09-10

Family

ID=16893458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62229520A Expired - Lifetime JP2650920B2 (en) 1987-09-16 1987-09-16 Defrosting method for air conditioner

Country Status (1)

Country Link
JP (1) JP2650920B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103742987A (en) * 2014-01-22 2014-04-23 苏州翔箭智能科技有限公司 Defrosting method of fresh-air machine system
JP2014074564A (en) * 2012-10-05 2014-04-24 Corona Corp Air conditioner
CN104501350A (en) * 2014-11-17 2015-04-08 广东美的制冷设备有限公司 Air conditioner control method and air conditioner
CN105715569A (en) * 2016-03-31 2016-06-29 海信集团有限公司 Fan rotating speed control method and device and heat dissipating method of projection system
CN109654664A (en) * 2018-11-14 2019-04-19 珠海格力电器股份有限公司 Intelligent defrosting method and system based on room heat load and air conditioner

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767767A (en) * 1980-10-15 1982-04-24 Sanyo Electric Co Automatic ice making apparatus
JPS5767737A (en) * 1980-10-15 1982-04-24 Hitachi Ltd Air-cooled heat pump type air-conditioner
JPS6030969U (en) * 1983-08-04 1985-03-02 シャープ株式会社 Heat pump air conditioner
JPS61175430A (en) * 1985-01-31 1986-08-07 Tohoku Electric Power Co Inc Refrigerating cycle

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5767767A (en) * 1980-10-15 1982-04-24 Sanyo Electric Co Automatic ice making apparatus
JPS5767737A (en) * 1980-10-15 1982-04-24 Hitachi Ltd Air-cooled heat pump type air-conditioner
JPS6030969U (en) * 1983-08-04 1985-03-02 シャープ株式会社 Heat pump air conditioner
JPS61175430A (en) * 1985-01-31 1986-08-07 Tohoku Electric Power Co Inc Refrigerating cycle

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014074564A (en) * 2012-10-05 2014-04-24 Corona Corp Air conditioner
CN103742987A (en) * 2014-01-22 2014-04-23 苏州翔箭智能科技有限公司 Defrosting method of fresh-air machine system
CN103742987B (en) * 2014-01-22 2016-06-08 苏州翔箭智能科技有限公司 The Defrost method of new blower fan system
CN104501350A (en) * 2014-11-17 2015-04-08 广东美的制冷设备有限公司 Air conditioner control method and air conditioner
CN105715569A (en) * 2016-03-31 2016-06-29 海信集团有限公司 Fan rotating speed control method and device and heat dissipating method of projection system
CN109654664A (en) * 2018-11-14 2019-04-19 珠海格力电器股份有限公司 Intelligent defrosting method and system based on room heat load and air conditioner
CN109654664B (en) * 2018-11-14 2020-04-28 珠海格力电器股份有限公司 Intelligent defrosting method and system based on room heat load and air conditioner

Also Published As

Publication number Publication date
JP2650920B2 (en) 1997-09-10

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