To efficiently remove moisture and non-condensable gas, particularly, oxygen and carbon dioxide in air mixed during construction work on site, to shorten a construction time by eliminating special work even in particular when a connection pipe is long or there are many use-side heat exchangers to be connected, to stably start a compressor, and to improve reliability and performance of a refrigeration cycle device.
In a refrigeration cycle device which is configured by sequentially connecting the compressor, a heat source-side heat exchanger, a first expansion device, a liquid-side connection pipe, a second expansion device, a use-side heat exchanger, and a gas-side connection pipe, an adsorbent which adsorbs at least oxygen in the non-condensable gas and a drier which adsorbs moisture contained therein are arranged between the first expansion device and the second expansion device, a gas pump is provided is provided through an on-off valve in at least one of the liquid-side connection pipe and the gas-side connection pipe, and the gas pump is operated before a refrigerant is introduced into the liquid-side connection pipe and the gas-side connection pipe.
YOKOZEKI ATSUHIKO
NAKAYAMA SUSUMU
| JPH04302967A | 1992-10-26 | |||
| JP2007071421A | 2007-03-22 | |||
| JP2006162081A | 2006-06-22 | |||
| JPH04302967A | 1992-10-26 | |||
| JP2011085360A | 2011-04-28 |
| US4856290A | 1989-08-15 |
Yuji Toda
Shigemi Iwasaki