WO2014098724A1 - Method and apparatus for defrosting of an evaporator in connection with an air handling unit - Google Patents
Method and apparatus for defrosting of an evaporator in connection with an air handling unit Download PDFInfo
- Publication number
- WO2014098724A1 WO2014098724A1 PCT/SE2013/051440 SE2013051440W WO2014098724A1 WO 2014098724 A1 WO2014098724 A1 WO 2014098724A1 SE 2013051440 W SE2013051440 W SE 2013051440W WO 2014098724 A1 WO2014098724 A1 WO 2014098724A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant
- evaporator
- condenser
- expansion valve
- compressor
- Prior art date
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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
- F24F12/003—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using a heat pump
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
-
- 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
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
-
- 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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/41—Defrosting; Preventing freezing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2203/00—Devices or apparatus used for air treatment
- F24F2203/10—Rotary wheel
- F24F2203/104—Heat exchanger wheel
-
- 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
-
- 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
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/04—Refrigeration circuit bypassing means
- F25B2400/0411—Refrigeration circuit bypassing means for the expansion valve or capillary tube
-
- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
-
- 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
- F25D21/06—Removing frost
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/52—Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Defrosting Systems (AREA)
- Air Conditioning Control Device (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015541742A JP2015535071A (en) | 2012-12-21 | 2013-12-03 | Method and apparatus for defrosting an evaporator for an air conditioner |
KR1020157011524A KR101576431B1 (en) | 2012-12-21 | 2013-12-03 | Method and apparatus for defrosting of an evaporator in connection with an air handling unit |
EP13864219.4A EP2936008B1 (en) | 2012-12-21 | 2013-12-03 | Method for defrosting of an evaporator in connection with an air handling unit |
RU2015114916A RU2638704C2 (en) | 2012-12-21 | 2013-12-03 | Method and device for defrosting evaporator relating to for air conditioning unit |
US14/441,347 US9423164B2 (en) | 2012-12-21 | 2013-12-03 | Method and apparatus for the defrosting of an evaporator in connection with an air handling unit |
CN201380061069.9A CN104813122B (en) | 2012-12-21 | 2013-12-03 | For a pair method and apparatus for the evaporator deicing being connected with air-conditioning unit |
HK15111641.3A HK1211079A1 (en) | 2012-12-21 | 2015-11-26 | Method and apparatus for defrosting of an evaporator in connection with an air handling unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE1200784-5 | 2012-12-21 | ||
SE1200784A SE537022C2 (en) | 2012-12-21 | 2012-12-21 | Process and apparatus for defrosting an evaporator wide air handling unit |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2014098724A1 true WO2014098724A1 (en) | 2014-06-26 |
Family
ID=50978859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2013/051440 WO2014098724A1 (en) | 2012-12-21 | 2013-12-03 | Method and apparatus for defrosting of an evaporator in connection with an air handling unit |
Country Status (9)
Country | Link |
---|---|
US (1) | US9423164B2 (en) |
EP (1) | EP2936008B1 (en) |
JP (1) | JP2015535071A (en) |
KR (1) | KR101576431B1 (en) |
CN (1) | CN104813122B (en) |
HK (1) | HK1211079A1 (en) |
RU (1) | RU2638704C2 (en) |
SE (1) | SE537022C2 (en) |
WO (1) | WO2014098724A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104329790A (en) * | 2014-11-14 | 2015-02-04 | 四川创境科技有限公司 | Energy-saving type heat exchange device for communication base station room and air-conditioning system formed by energy-saving type heat exchange device |
JP2016102681A (en) * | 2014-11-27 | 2016-06-02 | エスペック株式会社 | Environmental test device and cooling device |
ITUB20160682A1 (en) * | 2016-03-01 | 2017-09-01 | Evolving Living Innovation Center Elic S R L | HEAT PUMP EQUIPMENT FOR REPLACEMENT OF AIR IN HOME PREMISES AND ITS OPERATING METHOD |
EP3246641A1 (en) * | 2016-05-17 | 2017-11-22 | Lars Friberg Evolution AB | Apparatus for rapid defrosting of the evaporator in an air-water heat pump |
EP3237814A4 (en) * | 2014-12-23 | 2018-09-19 | FläktGroup Sweden AB | Device and method for heating of air at an air treatment device |
RU2672995C1 (en) * | 2014-11-24 | 2018-11-21 | Кэрриер Корпорейшн | System and method of autonomous and uninterrupted defrosting |
WO2022194678A1 (en) * | 2021-03-19 | 2022-09-22 | Zehnder Group International Ag | Heat recovery ventilation system with defrosting bypass |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE538309C2 (en) | 2013-11-26 | 2016-05-10 | Fläkt Woods AB | Apparatus and method for heating air in an air treatment device |
CN105157172B (en) * | 2015-08-31 | 2018-03-30 | Tcl空调器(中山)有限公司 | The control method and device of air conditioner |
JP6540551B2 (en) * | 2016-03-02 | 2019-07-10 | 株式会社デンソー | Air conditioner |
SE540118C2 (en) * | 2016-06-16 | 2018-04-03 | Flaekt Woods Ab | Method and apparatus for reducing or eliminating the lowering of the supply air temperature during the defrosting of an evaporator by an air treatment unit |
CN106545947A (en) * | 2017-01-24 | 2017-03-29 | 北京代克环能技术有限公司 | A kind of anti-icing stifled heat-recovery fresh air ventilator of extremely frigid zones and its air exchanging method |
SE540832C2 (en) * | 2017-04-28 | 2018-11-27 | Flaektgroup Sweden Ab | Air treatment device with partially indirect heat pump and method of reducing the supply air temperature during defrost operation |
JP6804648B2 (en) * | 2017-07-07 | 2020-12-23 | 三菱電機株式会社 | Refrigeration cycle equipment |
EP3745053A4 (en) * | 2018-01-26 | 2021-01-13 | Mitsubishi Electric Corporation | Refrigeration cycle device |
CN108151363A (en) * | 2018-02-05 | 2018-06-12 | 徐生恒 | Round-the-clock air energy thermal pump air conditioner system |
US11619431B2 (en) | 2018-04-13 | 2023-04-04 | Carrier Corporation | Method of defrosting a multiple heat absorption heat exchanger refrigeration system |
CN109708273B (en) * | 2018-12-29 | 2021-10-08 | 广东美的暖通设备有限公司 | Control method and device for low-temperature refrigerating air valve |
CN111121337B (en) * | 2019-12-31 | 2022-03-22 | 宁波奥克斯电气股份有限公司 | Air conditioner double-condenser defrosting method and air conditioner |
CN111140976A (en) * | 2020-01-17 | 2020-05-12 | 珠海格力电器股份有限公司 | Fresh air conditioning system and control method thereof |
EP3862660A1 (en) | 2020-02-06 | 2021-08-11 | Carrier Corporation | Heat pump system |
WO2023287035A1 (en) * | 2021-07-12 | 2023-01-19 | 엘지전자 주식회사 | Refrigerator |
Citations (11)
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GB1556064A (en) * | 1977-12-19 | 1979-11-21 | Lennox Ind Ltd | Heating or cooling devices for buildings |
GB2206679A (en) * | 1987-07-10 | 1989-01-11 | Toshiba Kk | Refrigerating circuit device for air conditioning apparatus |
US5309725A (en) * | 1993-07-06 | 1994-05-10 | Cayce James L | System and method for high-efficiency air cooling and dehumidification |
US6141979A (en) * | 1999-11-19 | 2000-11-07 | American Standard Inc. | Dual heat exchanger wheels with variable speed |
WO2001084066A1 (en) * | 2000-05-01 | 2001-11-08 | University Of Maryland | Device for collecting water from air |
US20040244398A1 (en) * | 2000-05-01 | 2004-12-09 | Radermacher Reinhard K. | Device for collecting water from air |
WO2007141901A1 (en) * | 2006-06-09 | 2007-12-13 | Japan Exlan Company Limited | Humidity controller |
US20080108295A1 (en) * | 2006-11-08 | 2008-05-08 | Semco Inc. | Building, ventilation system, and recovery device control |
WO2008091109A1 (en) * | 2007-01-24 | 2008-07-31 | Chungju National University Industry-Academic Cooperation Foundation | Method and apparatus for defrosting |
US20120180505A1 (en) * | 2011-01-19 | 2012-07-19 | Venmar Ces, Inc. | Heat pump system having a pre-processing module |
WO2013081532A1 (en) * | 2011-11-23 | 2013-06-06 | Swegon Ab | A system for heating supply air with simultaneous defrosting of a water-exhaust air heat exchanger |
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JPH0799297B2 (en) * | 1986-06-25 | 1995-10-25 | 株式会社日立製作所 | Air conditioner |
JPS63153374A (en) * | 1986-12-17 | 1988-06-25 | 株式会社日立製作所 | Air conditioner |
JPH0387547A (en) * | 1989-08-30 | 1991-04-12 | Kubota Toreen Kk | Defrosting method for packaged air conditioner |
JPH0518645A (en) * | 1991-07-10 | 1993-01-26 | Nippondenso Co Ltd | Heat pump type air conditioning device |
US5203179A (en) * | 1992-03-04 | 1993-04-20 | Ecoair Corporation | Control system for an air conditioning/refrigeration system |
JPH06257828A (en) * | 1993-03-02 | 1994-09-16 | Matsushita Electric Ind Co Ltd | Multi-chamber type air conditioning system |
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CN1308717A (en) * | 1998-06-30 | 2001-08-15 | 株式会社荏原制作所 | Heat exchanger, heat pump, dehumidifier, and dehumidifying method |
JP4518998B2 (en) * | 2005-04-28 | 2010-08-04 | 株式会社東洋製作所 | Heat pump air conditioner |
RU2008102367A (en) * | 2005-06-23 | 2009-07-27 | Кэрриер Корпорейшн (Us) | METHOD FOR DEFROSTING THE EVAPORATOR IN THE REFRIGERATING CIRCUIT |
US7856836B2 (en) * | 2005-07-26 | 2010-12-28 | Mitsubishi Electric Corporation | Refrigerating air conditioning system |
KR100788302B1 (en) * | 2006-04-13 | 2007-12-27 | 주식회사 코벡엔지니어링 | High speed defrosting heat pump |
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JP5100416B2 (en) * | 2008-01-25 | 2012-12-19 | 三菱電機株式会社 | Reheat dehumidifier and air conditioner |
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JP5418280B2 (en) * | 2010-02-17 | 2014-02-19 | 株式会社デンソー | Evaporator |
US8943848B2 (en) * | 2010-06-16 | 2015-02-03 | Reznor Llc | Integrated ventilation unit |
-
2012
- 2012-12-21 SE SE1200784A patent/SE537022C2/en unknown
-
2013
- 2013-12-03 KR KR1020157011524A patent/KR101576431B1/en active IP Right Grant
- 2013-12-03 EP EP13864219.4A patent/EP2936008B1/en active Active
- 2013-12-03 CN CN201380061069.9A patent/CN104813122B/en active Active
- 2013-12-03 JP JP2015541742A patent/JP2015535071A/en active Pending
- 2013-12-03 RU RU2015114916A patent/RU2638704C2/en active
- 2013-12-03 US US14/441,347 patent/US9423164B2/en active Active
- 2013-12-03 WO PCT/SE2013/051440 patent/WO2014098724A1/en active Search and Examination
-
2015
- 2015-11-26 HK HK15111641.3A patent/HK1211079A1/en unknown
Patent Citations (11)
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GB1556064A (en) * | 1977-12-19 | 1979-11-21 | Lennox Ind Ltd | Heating or cooling devices for buildings |
GB2206679A (en) * | 1987-07-10 | 1989-01-11 | Toshiba Kk | Refrigerating circuit device for air conditioning apparatus |
US5309725A (en) * | 1993-07-06 | 1994-05-10 | Cayce James L | System and method for high-efficiency air cooling and dehumidification |
US6141979A (en) * | 1999-11-19 | 2000-11-07 | American Standard Inc. | Dual heat exchanger wheels with variable speed |
WO2001084066A1 (en) * | 2000-05-01 | 2001-11-08 | University Of Maryland | Device for collecting water from air |
US20040244398A1 (en) * | 2000-05-01 | 2004-12-09 | Radermacher Reinhard K. | Device for collecting water from air |
WO2007141901A1 (en) * | 2006-06-09 | 2007-12-13 | Japan Exlan Company Limited | Humidity controller |
US20080108295A1 (en) * | 2006-11-08 | 2008-05-08 | Semco Inc. | Building, ventilation system, and recovery device control |
WO2008091109A1 (en) * | 2007-01-24 | 2008-07-31 | Chungju National University Industry-Academic Cooperation Foundation | Method and apparatus for defrosting |
US20120180505A1 (en) * | 2011-01-19 | 2012-07-19 | Venmar Ces, Inc. | Heat pump system having a pre-processing module |
WO2013081532A1 (en) * | 2011-11-23 | 2013-06-06 | Swegon Ab | A system for heating supply air with simultaneous defrosting of a water-exhaust air heat exchanger |
Non-Patent Citations (1)
Title |
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See also references of EP2936008A4 * |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104329790A (en) * | 2014-11-14 | 2015-02-04 | 四川创境科技有限公司 | Energy-saving type heat exchange device for communication base station room and air-conditioning system formed by energy-saving type heat exchange device |
RU2672995C1 (en) * | 2014-11-24 | 2018-11-21 | Кэрриер Корпорейшн | System and method of autonomous and uninterrupted defrosting |
US10823482B2 (en) | 2014-11-24 | 2020-11-03 | Carrier Corporation | Systems and methods for free and positive defrost |
JP2016102681A (en) * | 2014-11-27 | 2016-06-02 | エスペック株式会社 | Environmental test device and cooling device |
EP3237814A4 (en) * | 2014-12-23 | 2018-09-19 | FläktGroup Sweden AB | Device and method for heating of air at an air treatment device |
ITUB20160682A1 (en) * | 2016-03-01 | 2017-09-01 | Evolving Living Innovation Center Elic S R L | HEAT PUMP EQUIPMENT FOR REPLACEMENT OF AIR IN HOME PREMISES AND ITS OPERATING METHOD |
EP3246641A1 (en) * | 2016-05-17 | 2017-11-22 | Lars Friberg Evolution AB | Apparatus for rapid defrosting of the evaporator in an air-water heat pump |
WO2022194678A1 (en) * | 2021-03-19 | 2022-09-22 | Zehnder Group International Ag | Heat recovery ventilation system with defrosting bypass |
Also Published As
Publication number | Publication date |
---|---|
CN104813122A (en) | 2015-07-29 |
RU2638704C2 (en) | 2017-12-15 |
HK1211079A1 (en) | 2016-05-13 |
US9423164B2 (en) | 2016-08-23 |
SE537022C2 (en) | 2014-12-09 |
EP2936008A1 (en) | 2015-10-28 |
EP2936008A4 (en) | 2016-09-07 |
US20150292786A1 (en) | 2015-10-15 |
SE1200784A1 (en) | 2014-06-22 |
KR20150062172A (en) | 2015-06-05 |
EP2936008B1 (en) | 2022-08-10 |
CN104813122B (en) | 2017-08-29 |
JP2015535071A (en) | 2015-12-07 |
KR101576431B1 (en) | 2015-12-21 |
RU2015114916A (en) | 2016-11-10 |
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