DK0893663T3 - Method for controlling the defrost cycles in a heat pump system - Google Patents

Method for controlling the defrost cycles in a heat pump system

Info

Publication number
DK0893663T3
DK0893663T3 DK97830379T DK97830379T DK0893663T3 DK 0893663 T3 DK0893663 T3 DK 0893663T3 DK 97830379 T DK97830379 T DK 97830379T DK 97830379 T DK97830379 T DK 97830379T DK 0893663 T3 DK0893663 T3 DK 0893663T3
Authority
DK
Denmark
Prior art keywords
value
controlling
pump system
heat pump
defrost cycles
Prior art date
Application number
DK97830379T
Other languages
Danish (da)
Inventor
Giuseppe Guarini
Olio Roberto Dall
Original Assignee
Aermec Spa
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 Aermec Spa filed Critical Aermec Spa
Application granted granted Critical
Publication of DK0893663T3 publication Critical patent/DK0893663T3/en

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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/002—Defroster control
    • F25D21/006—Defroster control with electronic control circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Defrosting Systems (AREA)

Abstract

A method (200) of controlling the defrosting cycles of a battery in a heat-pump system, comprising the steps of detecting (207) a first value indicative of a state parameter relating to a refrigerant fluid used in the system, comparing (239) the first value with a threshold value, and performing (245) a defrosting cycle in dependence on a result of the comparison, includes the steps of determining (221-227) a second value correlated with a maximum value of the first value and modifying (230) the threshold value in dependence on the second value. <IMAGE>
DK97830379T 1997-07-22 1997-07-22 Method for controlling the defrost cycles in a heat pump system DK0893663T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP97830379A EP0893663B1 (en) 1997-07-22 1997-07-22 A method for controlling the defrosting cycles in a heat-pump system

Publications (1)

Publication Number Publication Date
DK0893663T3 true DK0893663T3 (en) 2002-10-28

Family

ID=8230727

Family Applications (1)

Application Number Title Priority Date Filing Date
DK97830379T DK0893663T3 (en) 1997-07-22 1997-07-22 Method for controlling the defrost cycles in a heat pump system

Country Status (7)

Country Link
EP (1) EP0893663B1 (en)
AT (1) ATE225022T1 (en)
DE (1) DE69715835T2 (en)
DK (1) DK0893663T3 (en)
ES (1) ES2184054T3 (en)
PT (1) PT893663E (en)
SI (1) SI0893663T1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2371355B (en) * 2001-01-18 2005-05-25 Jtl Systems Ltd Defrost control method and apparatus
EP2426436A1 (en) 2010-09-07 2012-03-07 AERMEC S.p.A. Method for controlling the defrosting cycles in a heat pump system and a heat pump system

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4302947A (en) * 1980-01-04 1981-12-01 Honeywell Inc. Heat pump system defrost control
FR2486217A1 (en) * 1980-07-04 1982-01-08 Anectron Defrosting cycle controller for heat pump - uses timer circuits to control power to compressor when evaporator temperature is low
US4373349A (en) * 1981-06-30 1983-02-15 Honeywell Inc. Heat pump system adaptive defrost control system
JPS59189243A (en) * 1983-04-13 1984-10-26 Matsushita Electric Ind Co Ltd Defrosting control device of air conditioner
JPS6159137A (en) * 1984-08-28 1986-03-26 Sanyo Electric Co Ltd Frosting detection method
KR900005722B1 (en) * 1985-11-18 1990-08-06 마쯔시다덴기산교 가부시기가이샤 Defrosting control apparatus for a temperature control system
US4882908A (en) * 1987-07-17 1989-11-28 Ranco Incorporated Demand defrost control method and apparatus
JPH01134146A (en) * 1987-11-18 1989-05-26 Mitsubishi Electric Corp Defrosting device for air conditioner
US5515689A (en) * 1994-03-30 1996-05-14 Gas Research Institute Defrosting heat pumps
US5507154A (en) * 1994-07-01 1996-04-16 Ranco Incorporated Of Delaware Self-calibrating defrost controller

Also Published As

Publication number Publication date
DE69715835D1 (en) 2002-10-31
SI0893663T1 (en) 2003-04-30
EP0893663A1 (en) 1999-01-27
ATE225022T1 (en) 2002-10-15
ES2184054T3 (en) 2003-04-01
EP0893663B1 (en) 2002-09-25
DE69715835T2 (en) 2003-05-28
PT893663E (en) 2003-01-31

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