AIR CONDITIONER

摘要

When a compressor (1) is in a stopped state, the rate of change of a refrigerant temperature (Tr) per unit of a predetermined time (dt) is determined using a detection value of a refrigerant temperature sensor (22), and the rate at which the compressor (1) is heated by a compressor heater (10) is made to be proportional to the rate of change of the refrigerant temperature (Tr).