Patent ID: 7395674

Claim:
An air conditioner comprising: a heat source refrigerant circuit configured by an interconnection of a compression mechanism, a heat source heat exchanger, and a heat source expansion valve that reduces a pressure of refrigerant condensed in the heat source heat exchanger when the heat source heat exchanger functions as a condenser; one or more utilization refrigerant circuits connected to the heat source refrigerant circuit and configured by the interconnection of a plurality of utilization heat exchangers and a plurality of utilization expansion valves; a pressurizing circuit disposed in the heat source refrigerant circuit and configured to cause high-pressure gas refrigerant compressed in the compression mechanism to merge with a refrigerant having a pressure that is reduced in the heat source expansion valve, the refrigerant being sent to the utilization refrigerant circuits; and a cooler for cooling the refrigerant having the pressure that is reduced in the heat source expansion valve.