| 摘要 |
An air-conditioning apparatus includes a refrigerant circuit connecting a compressor, a first heat exchanger, a first expansion device, and a second heat exchanger. The compressor and the first heat exchanger are housed in a heat source unit, the first expansion device and the second heat exchanger are housed in a casing, the heat source unit and the casing are connected via a plurality of extension pipes constituting a part of a refrigerant pipe, the heat source unit houses a second expansion device provided at a location on a downstream side with respect to the first heat exchanger and on an upstream side with respect to the first expansion device, and the second expansion device and the first expansion device are connected via a first extension pipe being one of the extension pipes. The second expansion device reduces a pressure of refrigerant flowing into the first extension pipe in cooling operation to cause the refrigerant to turn into refrigerant having a medium pressure and in a two-phase state, and the medium pressure is lower than a refrigerant pressure in a condenser and higher than a refrigerant pressure in an evaporator. In the cooling operation, the refrigerant having the medium pressure and in the two-phase state is caused to flow through the first extension pipe. |
