To obtain a vapor compression type heat pump device allowing safe handling of a combustible refrigerant and safe repairing and disposal of it.
The vapor compression type heat pump device is provided with a refrigerant circuit formed by interconnecting a compressor 1, an outdoor heat exchanger 3, an expansion valve 4 and an indoor heat exchanger 7 by a refrigerant pipe; and an inside and outside connecting pipe connection fitting screw part 55 and a charging valve connection fitting screw part 57 provided in the refrigerant circuit and connected to a refrigerant recovery pipe 371 for recovering a refrigerant circulated in the refrigerant circuit. As the refrigerant, a combustible refrigerant is used, and the size of the inside and outside connecting pipe connection fitting screw part 55 and charging valve connection fitting screw part 57 is different from the size of a connection port provided in a conventional refrigerant circuit.
KODA TOSHIHIDE
YAMASHITA KOJI
MAKINO HIROAKI
| JP2004116885A | 2004-04-15 | |||
| JPH10176876A | 1998-06-30 | |||
| JP2000292039A | 2000-10-20 | |||
| JP2007315663A | 2007-12-06 | |||
| JPH11336667A | 1999-12-07 | |||
| JPS6011074A | 1985-01-21 | |||
| JPH062965A | 1994-01-11 |
Kiyoshi Yasushima
Souji Sasaki
Noboru Omura
Takanashi Norio