EP0834708A4 - Multi-type air-conditioner - Google Patents

Multi-type air-conditioner

Info

Publication number
EP0834708A4
EP0834708A4 EP97917445A EP97917445A EP0834708A4 EP 0834708 A4 EP0834708 A4 EP 0834708A4 EP 97917445 A EP97917445 A EP 97917445A EP 97917445 A EP97917445 A EP 97917445A EP 0834708 A4 EP0834708 A4 EP 0834708A4
Authority
EP
European Patent Office
Prior art keywords
temperature
stopped
decreased
indoor unit
conditioner
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
EP97917445A
Other languages
German (de)
French (fr)
Other versions
EP0834708A1 (en
EP0834708B1 (en
Inventor
Masahiko Sasakura
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP0834708A1 publication Critical patent/EP0834708A1/en
Publication of EP0834708A4 publication Critical patent/EP0834708A4/en
Application granted granted Critical
Publication of EP0834708B1 publication Critical patent/EP0834708B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/30—Condensation of water from cooled air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2500/00—Problems to be solved
    • F25B2500/06—Damage

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Abstract

When the drainage fails, for example, a blower (24a) of a faulty side indoor unit (2) is stopped to fully close an electronic expansion valve (21a), and the temperature of a faulty side heat exchanger (23a) is detected by a thermistor (30a). When this temperature has increased, the operation of an indoor unit (3) in which a drainage failure does not occur is contained, and when the temperature has not increased, the operations of all the indoor units (2, 3) are stopped. When a compressor (5) which stopped when the drainage failure occurred is restarted, the faulty side heat exchanger (23a) is judged as to whether the temperature thereof has decreased or not. When this temperature has not decreased, the operation of the other indoor unit (3) is continued, and, when the temperature has decreased, the operations of all the indoor units (2, 3) are stopped.
EP97917445A 1996-04-22 1997-04-21 Multi-type air-conditioner Expired - Lifetime EP0834708B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP10019096 1996-04-22
JP100190/96 1996-04-22
JP10019096A JP3776502B2 (en) 1996-04-22 1996-04-22 Multi-type air conditioner
PCT/JP1997/001361 WO1997040326A1 (en) 1996-04-22 1997-04-21 Multi-type air-conditioner

Publications (3)

Publication Number Publication Date
EP0834708A1 EP0834708A1 (en) 1998-04-08
EP0834708A4 true EP0834708A4 (en) 1998-12-16
EP0834708B1 EP0834708B1 (en) 2002-11-06

Family

ID=14267389

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97917445A Expired - Lifetime EP0834708B1 (en) 1996-04-22 1997-04-21 Multi-type air-conditioner

Country Status (7)

Country Link
EP (1) EP0834708B1 (en)
JP (1) JP3776502B2 (en)
CN (1) CN1100240C (en)
HK (1) HK1009842A1 (en)
ID (1) ID16639A (en)
TW (1) TW323329B (en)
WO (1) WO1997040326A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4485863B2 (en) * 2004-07-09 2010-06-23 株式会社神戸製鋼所 Compressor
CN100465535C (en) * 2004-11-13 2009-03-04 珠海格力电器股份有限公司 Fixed-frequency multi-connected air conditioning unit
JP5262398B2 (en) * 2008-07-28 2013-08-14 ダイキン工業株式会社 Drain drainage method, air conditioning apparatus and air conditioning system, drain socket
JP5474048B2 (en) * 2009-03-23 2014-04-16 三菱電機株式会社 Air conditioner
CN104033992A (en) * 2014-06-06 2014-09-10 广东美的暖通设备有限公司 VRF (Variable Refrigerant Flow)air-conditioner fault handling method and air-conditioner
CN109708248B (en) * 2018-12-29 2020-02-04 广东美的暖通设备有限公司 Valve failure detection method of air conditioning system and air conditioning system
CN113531773B (en) * 2021-06-18 2022-11-15 宁波奥克斯电气股份有限公司 Multi-connected air conditioner fault detection method and device and multi-connected air conditioner

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248924A (en) * 1990-10-16 1992-04-22 Toshiba Kk "Multi-type air conditioner with bedewing protection function in distribution unit"
JPH07229634A (en) * 1994-02-16 1995-08-29 Matsushita Seiko Co Ltd Drain water leakage preventing device for separate type air conditioner

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0726754B2 (en) * 1986-10-20 1995-03-29 三洋電機株式会社 Refrigeration equipment

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2248924A (en) * 1990-10-16 1992-04-22 Toshiba Kk "Multi-type air conditioner with bedewing protection function in distribution unit"
JPH07229634A (en) * 1994-02-16 1995-08-29 Matsushita Seiko Co Ltd Drain water leakage preventing device for separate type air conditioner

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 095, no. 011 26 December 1995 (1995-12-26) *
See also references of WO9740326A1 *

Also Published As

Publication number Publication date
EP0834708A1 (en) 1998-04-08
JP3776502B2 (en) 2006-05-17
CN1100240C (en) 2003-01-29
HK1009842A1 (en) 1999-09-17
ID16639A (en) 1997-10-23
EP0834708B1 (en) 2002-11-06
CN1189212A (en) 1998-07-29
TW323329B (en) 1997-12-21
WO1997040326A1 (en) 1997-10-30
JPH09287802A (en) 1997-11-04

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