EP 2639516 A3 20140326 - Heat pump hydronic heater
Title (en)
Heat pump hydronic heater
Title (de)
Hydronischer Wärmepumpenheizer
Title (fr)
Dispositif de chauffage hydronique à pompe thermique
Publication
Application
Priority
JP 2012054150 A 20120312
Abstract (en)
[origin: EP2639516A2] In a heat pump hydronic heater of the present invention, the control device 11a stops operation of the compressor 1 if the discharge pressure detected by the discharge pressure detecting means 1b is lower than a first set pressure and a discharge superheat degree detected by the discharge superheat degree detecting means is equal to or higher than a predetermined value when predetermined time is elapsed after the compressor 1 is started, or if the discharge pressure detected by the discharge pressure detecting means 1b is lower than a second set pressure which is set lower than the first set pressure. Therefore, it is possible to enhance usability without erroneously detecting leakage of a refrigerant.
IPC 8 full level
F24D 19/10 (2006.01); F25B 49/00 (2006.01)
CPC (source: EP US)
F24D 19/1039 (2013.01 - EP US); F24D 19/1072 (2013.01 - EP US); F24H 15/38 (2022.01 - EP US); F25B 49/005 (2013.01 - EP); F25B 2700/1931 (2013.01 - EP)
Citation (search report)
- [IY] US 5586445 A 19961224 - BESSLER WARREN F [US]
- [I] WO 2009140372 A1 20091119 - CARRIER CORP [US], et al
- [I] US 6406265 B1 20020618 - HAHN GREG [US], et al
- [I] US 5457965 A 19951017 - BLAIR JOHN H [US], et al
- [IA] WO 2011099190 A1 20110818 - MITSUBISHI HEAVY IND LTD [JP], et al
- [Y] EP 1887292 A1 20080213 - DAIKIN IND LTD [JP]
- [A] US 7594407 B2 20090929 - SINGH ABTAR [US], et al
- [A] EP 1467158 A2 20041013 - HITACHI LTD [JP], et al
- [A] EP 2312226 A2 20110420 - FUJITSU GENERAL LTD [JP]
- [A] EP 1972871 A2 20080924 - MITSUBISHI ELECTRIC CORP [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2639516 A2 20130918; EP 2639516 A3 20140326; EP 2639516 B1 20170614; CN 103307654 A 20130918; CN 103307654 B 20170531; DK 2639516 T3 20170724; JP 2013185803 A 20130919
DOCDB simple family (application)
EP 13158797 A 20130312; CN 201310077859 A 20130312; DK 13158797 T 20130312; JP 2012054150 A 20120312