IT1292014B1 - EVAPORATOR DEFROST CONTROL IN AN AIR HEAT PUMP SYSTEM - Google Patents

EVAPORATOR DEFROST CONTROL IN AN AIR HEAT PUMP SYSTEM

Info

Publication number
IT1292014B1
IT1292014B1 IT97MI001244A ITMI971244A IT1292014B1 IT 1292014 B1 IT1292014 B1 IT 1292014B1 IT 97MI001244 A IT97MI001244 A IT 97MI001244A IT MI971244 A ITMI971244 A IT MI971244A IT 1292014 B1 IT1292014 B1 IT 1292014B1
Authority
IT
Italy
Prior art keywords
heat pump
pump system
air heat
defrost control
evaporator defrost
Prior art date
Application number
IT97MI001244A
Other languages
Italian (it)
Inventor
Luigi Rosso
Roberto Trecate
Original Assignee
Rc Condizionatori 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 Rc Condizionatori Spa filed Critical Rc Condizionatori Spa
Priority to IT97MI001244A priority Critical patent/IT1292014B1/en
Publication of ITMI971244A0 publication Critical patent/ITMI971244A0/it
Priority to EP97119032A priority patent/EP0881440A3/en
Publication of ITMI971244A1 publication Critical patent/ITMI971244A1/en
Application granted granted Critical
Publication of IT1292014B1 publication Critical patent/IT1292014B1/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
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/19—Pressures
    • F25B2700/197—Pressures of the evaporator
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2106—Temperatures of fresh outdoor 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator

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)
  • Defrosting Systems (AREA)
  • Air Conditioning Control Device (AREA)
IT97MI001244A 1997-05-27 1997-05-27 EVAPORATOR DEFROST CONTROL IN AN AIR HEAT PUMP SYSTEM IT1292014B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT97MI001244A IT1292014B1 (en) 1997-05-27 1997-05-27 EVAPORATOR DEFROST CONTROL IN AN AIR HEAT PUMP SYSTEM
EP97119032A EP0881440A3 (en) 1997-05-27 1997-10-31 Control of evaporator defrosting in an air-operated heat pump unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT97MI001244A IT1292014B1 (en) 1997-05-27 1997-05-27 EVAPORATOR DEFROST CONTROL IN AN AIR HEAT PUMP SYSTEM

Publications (3)

Publication Number Publication Date
ITMI971244A0 ITMI971244A0 (en) 1997-05-27
ITMI971244A1 ITMI971244A1 (en) 1998-11-27
IT1292014B1 true IT1292014B1 (en) 1999-01-25

Family

ID=11377230

Family Applications (1)

Application Number Title Priority Date Filing Date
IT97MI001244A IT1292014B1 (en) 1997-05-27 1997-05-27 EVAPORATOR DEFROST CONTROL IN AN AIR HEAT PUMP SYSTEM

Country Status (2)

Country Link
EP (1) EP0881440A3 (en)
IT (1) IT1292014B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001022014A1 (en) * 1999-09-24 2001-03-29 Arçelik A.S. Defrost control
US6334321B1 (en) * 2000-03-15 2002-01-01 Carrier Corporation Method and system for defrost control on reversible heat pumps
ITTO20011091A1 (en) * 2001-11-22 2003-05-22 Oscam Spa PLANT FOR CUTTING METAL BARS IN PRE-DETERMINED LENGTHS, ESPECIALLY FOR CONCRETE REINFORCEMENT.
WO2006045143A1 (en) * 2004-10-26 2006-05-04 Quantum Energy Technologies Pty Limited Control system for heat pump water heaters
DE102005054104A1 (en) * 2005-11-12 2007-05-24 Stiebel Eltron Gmbh & Co. Kg Compression refrigerator e.g. ventilation system, controlling method, for e.g. heating room, involves determining control value by combining two control values and adjusting throttle body to determined control value
ITMI20121677A1 (en) * 2012-10-08 2014-04-09 Dixell S R L Societa Unipersonale CONTROL SYSTEM FOR REFRIGERATED EQUIPMENT AND SYSTEMS WITH ADVANCED ENERGY SAVING FUNCTIONS
ITMI20150564A1 (en) * 2015-04-20 2016-10-20 Lu Ve Spa DEFROST PROCESS AND DEVICE, IN PARTICULAR FOR REFRIGERATION AND AIR CONDITIONING EQUIPMENT

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110042A1 (en) * 1981-03-16 1982-09-30 Gesellschaft für Wärmepumpen und Energierückgewinnungsanlagen mbH, 7311 Holzmaden Method and arrangement for the defrosting of ice on an air cooler of a heat pump or refrigerator
DE3227604A1 (en) * 1981-07-29 1983-02-24 Olsberg Gesellschaft für Produktion und Absatz mbH, 5790 Brilon Automatic defrosting device for heat pump evaporators
DE3229135A1 (en) * 1982-08-04 1984-02-09 Siemens AG, 1000 Berlin und 8000 München Process for the operation of an air/water heat pump, and arrangement for performing the process
FR2539859A1 (en) * 1983-01-24 1984-07-27 Comp Generale Electricite METHOD AND DEVICE FOR REGULATING DEFROSTING AND STOPPING THE DEFROSTING OF A REFRIGERATING FLUID EVAPORATOR FOR A HEAT PUMP
US4563877A (en) * 1984-06-12 1986-01-14 Borg-Warner Corporation Control system and method for defrosting the outdoor coil of a heat pump
JPS61101736A (en) * 1984-10-23 1986-05-20 Mitsubishi Heavy Ind Ltd Defrosting control device of air conditioner
JPS60117042A (en) * 1984-10-26 1985-06-24 Hitachi Ltd Air conditioner used for heating and cooling room
US4573326A (en) * 1985-02-04 1986-03-04 American Standard Inc. Adaptive defrost control for heat pump system
EP0285690A1 (en) * 1987-04-08 1988-10-12 Viessmann Werke GmbH & Co. Process and apparatus for the temperature dependent defrosting of cooling plants according to demand
US5507154A (en) * 1994-07-01 1996-04-16 Ranco Incorporated Of Delaware Self-calibrating defrost controller

Also Published As

Publication number Publication date
ITMI971244A1 (en) 1998-11-27
EP0881440A2 (en) 1998-12-02
EP0881440A3 (en) 1999-10-06
ITMI971244A0 (en) 1997-05-27

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Legal Events

Date Code Title Description
0001 Granted