| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning device free from degradation of operational efficiency of a refrigerating cycle and foreign matter recovering efficiency even in replacing a heat source-side unit and a load-side unit at a low outside air temperature. SOLUTION: In this air conditioning device 100, the load-side unit 50 and the heat source-side unit 10 provided with an injection circuit are connected with each other, a liquid pipe 1 is branched between a refrigerant heat exchanger 16 and a load-side throttle device 51, an opening and closing valve 32, a foreign matter separator 31 and an opening and closing valve 33 are successively connected by a bypass pipe 30 reconnected to the liquid pipe 1 between a refrigerant heat exchanger 15 and the load-side throttle device 51 to constitute a foreign matter recovering circuit, and an opening and closing valve 24 is disposed in the liquid pipe 1 between a part branching to the bypass pipe 30 and a part reconnecting the bypass pipe 30. COPYRIGHT: (C)2008,JPO&INPIT
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