Patent ID: 8104299

Claim:
An air conditioner comprising: a radiator configured to perform heat radiation with respect to air from a supercritical refrigerant during heating operation; and a controller configured to control a room temperature inside a room by causing a high-pressure side pressure of a refrigeration cycle including the radiator and a refrigerant outlet temperature of the radiator to reach respective target values that have been set beforehand, the controller being further configured to determine a target value of the high-pressure side pressure on the basis of the refrigerant outlet temperature from the radiator and the room temperature, to decrease the target value of the high-pressure side pressure when an excess of heating operation capability has been recognized from the room temperature despite the refrigerant outlet temperature having reached the target values, and to increase the target value of the high-pressure side pressure when a deficiency of heating operation capability has been recognized from the room temperature despite the refrigerant outlet temperature having reached the target values.