EP0257576A3 - Method and apparatus for avoiding failures caused by contacts-welding in heating and cooling systems - Google Patents

Method and apparatus for avoiding failures caused by contacts-welding in heating and cooling systems Download PDF

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Publication number
EP0257576A3
EP0257576A3 EP87112143A EP87112143A EP0257576A3 EP 0257576 A3 EP0257576 A3 EP 0257576A3 EP 87112143 A EP87112143 A EP 87112143A EP 87112143 A EP87112143 A EP 87112143A EP 0257576 A3 EP0257576 A3 EP 0257576A3
Authority
EP
European Patent Office
Prior art keywords
compressor
welding
contacts
heating
cooling systems
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
EP87112143A
Other languages
German (de)
Other versions
EP0257576B1 (en
EP0257576A2 (en
Inventor
Richard D. Jones
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.)
UHR CORP
Original Assignee
UHR CORP
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 UHR CORP filed Critical UHR CORP
Priority to AT87112143T priority Critical patent/ATE69102T1/en
Publication of EP0257576A2 publication Critical patent/EP0257576A2/en
Publication of EP0257576A3 publication Critical patent/EP0257576A3/en
Application granted granted Critical
Publication of EP0257576B1 publication Critical patent/EP0257576B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/005—Arrangement or mounting of control or safety devices of safety devices
    • 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
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00—Mechanisms for operating contacts
    • H01H3/001—Means for preventing or breaking contact-welding

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
  • Manufacture Of Switches (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
  • Arc Welding In General (AREA)
  • Air Conditioning Control Device (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Control Of Heat Treatment Processes (AREA)

Abstract

A bidirectional heat transfer system including a reversing valve and a compressor has a compressor control which is subject to a welded contact failure. The system is monitored to determine when the control system has signaled for the compressor operation to stop but the compressor has, in fact, continued to operate. Under these circumstances, a safety mode of operation is commenced to keep a load on the compressor to thereby save the compressor from self-destruction. Preferably, this is done by repetitively reversing the state of the reversing valve.
EP87112143A 1986-08-26 1987-08-21 Method and apparatus for avoiding failures caused by contacts-welding in heating and cooling systems Expired - Lifetime EP0257576B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87112143T ATE69102T1 (en) 1986-08-26 1987-08-21 METHOD AND DEVICE TO PREVENT DEFECTS CAUSED BY CONTACT WELDING IN HEATING AND COOLING SYSTEMS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/900,586 US4698978A (en) 1986-08-26 1986-08-26 Welded contact safety technique
US900586 1997-07-25

Publications (3)

Publication Number Publication Date
EP0257576A2 EP0257576A2 (en) 1988-03-02
EP0257576A3 true EP0257576A3 (en) 1989-11-02
EP0257576B1 EP0257576B1 (en) 1991-10-30

Family

ID=25412757

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112143A Expired - Lifetime EP0257576B1 (en) 1986-08-26 1987-08-21 Method and apparatus for avoiding failures caused by contacts-welding in heating and cooling systems

Country Status (10)

Country Link
US (1) US4698978A (en)
EP (1) EP0257576B1 (en)
JP (1) JPH01500687A (en)
AT (1) ATE69102T1 (en)
AU (1) AU603607B2 (en)
CA (1) CA1281394C (en)
DE (1) DE3774211D1 (en)
IE (1) IE65173B1 (en)
IL (1) IL83352A (en)
WO (1) WO1988001716A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE464667B (en) * 1988-08-22 1991-05-27 Thermia Ab HEAT PUMP INSTALLATION FOR HEATING OR COOLING THE SPACES AND HEATING OF THE TAPP HEAT WATER
JP2801629B2 (en) * 1989-03-29 1998-09-21 東芝エー・ブイ・イー株式会社 Air conditioner
US5105629A (en) * 1991-02-28 1992-04-21 Parris Jesse W Heat pump system
US5363669A (en) * 1992-11-18 1994-11-15 Whirlpool Corporation Defrost cycle controller
WO2005065355A2 (en) 2003-12-30 2005-07-21 Copeland Corporation Compressor protection and diagnostic system
US7412842B2 (en) 2004-04-27 2008-08-19 Emerson Climate Technologies, Inc. Compressor diagnostic and protection system
US7275377B2 (en) 2004-08-11 2007-10-02 Lawrence Kates Method and apparatus for monitoring refrigerant-cycle systems
US8590325B2 (en) 2006-07-19 2013-11-26 Emerson Climate Technologies, Inc. Protection and diagnostic module for a refrigeration system
US20080216494A1 (en) 2006-09-07 2008-09-11 Pham Hung M Compressor data module
US20090037142A1 (en) 2007-07-30 2009-02-05 Lawrence Kates Portable method and apparatus for monitoring refrigerant-cycle systems
US8393169B2 (en) 2007-09-19 2013-03-12 Emerson Climate Technologies, Inc. Refrigeration monitoring system and method
DE102007052532B4 (en) * 2007-11-01 2012-03-22 Gordon Seiptius Safety system for securing compressors in refrigeration systems
US9140728B2 (en) 2007-11-02 2015-09-22 Emerson Climate Technologies, Inc. Compressor sensor module
US8160827B2 (en) 2007-11-02 2012-04-17 Emerson Climate Technologies, Inc. Compressor sensor module
CN103597292B (en) 2011-02-28 2016-05-18 艾默生电气公司 For the heating of building, surveillance and the supervision method of heating ventilation and air-conditioning HVAC system
US8964338B2 (en) 2012-01-11 2015-02-24 Emerson Climate Technologies, Inc. System and method for compressor motor protection
US9480177B2 (en) 2012-07-27 2016-10-25 Emerson Climate Technologies, Inc. Compressor protection module
US9310439B2 (en) 2012-09-25 2016-04-12 Emerson Climate Technologies, Inc. Compressor having a control and diagnostic module
US9551504B2 (en) 2013-03-15 2017-01-24 Emerson Electric Co. HVAC system remote monitoring and diagnosis
US9803902B2 (en) 2013-03-15 2017-10-31 Emerson Climate Technologies, Inc. System for refrigerant charge verification using two condenser coil temperatures
EP2971989A4 (en) 2013-03-15 2016-11-30 Emerson Electric Co Hvac system remote monitoring and diagnosis
CN106030221B (en) 2013-04-05 2018-12-07 艾默生环境优化技术有限公司 Heat pump system with refrigerant charging diagnostic function
US10119738B2 (en) 2014-09-26 2018-11-06 Waterfurnace International Inc. Air conditioning system with vapor injection compressor
US10871314B2 (en) 2016-07-08 2020-12-22 Climate Master, Inc. Heat pump and water heater
US10866002B2 (en) 2016-11-09 2020-12-15 Climate Master, Inc. Hybrid heat pump with improved dehumidification
US11879673B2 (en) * 2018-07-17 2024-01-23 United Electric Company. L.P. Refrigerant charge control system for heat pump systems
US11592215B2 (en) 2018-08-29 2023-02-28 Waterfurnace International, Inc. Integrated demand water heating using a capacity modulated heat pump with desuperheater
CA3081986A1 (en) 2019-07-15 2021-01-15 Climate Master, Inc. Air conditioning system with capacity control and controlled hot water generation

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4253130A (en) * 1979-06-08 1981-02-24 Robertshaw Controls Company Method and apparatus for heat pump system protection
US4265091A (en) * 1979-06-07 1981-05-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Refrigerant compressor protecting device
EP0033781A2 (en) * 1980-02-11 1981-08-19 Honeywell Inc. Compressor fault detection and control system for a heat pump
US4307775A (en) * 1979-11-19 1981-12-29 The Trane Company Current monitoring control for electrically powered devices
FR2492071A1 (en) * 1980-10-14 1982-04-16 Gen Electric AUTOMATIC DEFECT DIAGNOSTIC DEVICE FOR A HEAT PUMP SYSTEM

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246763A (en) * 1978-10-24 1981-01-27 Honeywell Inc. Heat pump system compressor fault detector
US4211089A (en) * 1978-11-27 1980-07-08 Honeywell Inc. Heat pump wrong operational mode detector and control system
US4333316A (en) * 1980-10-14 1982-06-08 General Electric Company Automatic control apparatus for a heat pump system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4265091A (en) * 1979-06-07 1981-05-05 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Refrigerant compressor protecting device
US4253130A (en) * 1979-06-08 1981-02-24 Robertshaw Controls Company Method and apparatus for heat pump system protection
US4307775A (en) * 1979-11-19 1981-12-29 The Trane Company Current monitoring control for electrically powered devices
EP0033781A2 (en) * 1980-02-11 1981-08-19 Honeywell Inc. Compressor fault detection and control system for a heat pump
FR2492071A1 (en) * 1980-10-14 1982-04-16 Gen Electric AUTOMATIC DEFECT DIAGNOSTIC DEVICE FOR A HEAT PUMP SYSTEM

Also Published As

Publication number Publication date
IE872164L (en) 1988-02-26
AU603607B2 (en) 1990-11-22
ATE69102T1 (en) 1991-11-15
IL83352A (en) 1992-07-15
EP0257576B1 (en) 1991-10-30
CA1281394C (en) 1991-03-12
JPH01500687A (en) 1989-03-09
DE3774211D1 (en) 1991-12-05
EP0257576A2 (en) 1988-03-02
WO1988001716A1 (en) 1988-03-10
AU7876987A (en) 1988-03-24
IE65173B1 (en) 1995-10-04
IL83352A0 (en) 1987-12-31
US4698978A (en) 1987-10-13

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