Patent ID: 9726409
Date: 2017-08-08
CPC Classifications: F25B

Claim:
1. An air-conditioning apparatus in which a refrigeration cycle is formed by connecting a compressor, a refrigerant flow channel switching device, a first heat exchanger, a first expansion device, and a second heat exchanger to one another with a refrigerant pipe and by causing a refrigerant that is a refrigerant mixture to circulate within the refrigerant pipe, the air-conditioning apparatus comprising: a pressure bypass pipe that connects a flow channel at a discharge side of the compressor and a flow channel at a suction side of the compressor; a second expansion device that is disposed in the pressure bypass pipe and decompresses the refrigerant flowing through the pressure bypass pipe; an inter-refrigerant heat exchanger that performs heat exchange between the refrigerant flowing on a front side of the second expansion device through the pressure bypass pipe and the refrigerant flowing on a behind side of the second expansion device through the pressure bypass pipe; a bypass-channel opening and closing device that is disposed in the pressure bypass pipe and opens and closes the flow channel of the pressure bypass pipe; and a controller, the controller is configured to