| 摘要 |
In the present invention, the frequency of a compressor is controlled so that during a cooling operation the evaporation temperature becomes a target evaporation temperature, and in a case where refrigerant stagnancy is detected in a condenser of an outdoor unit during a cooling operation, a stagnancy elimination operation is implemented. The stagnancy elimination operation includes the following: stagnancy suppression control in which, in order to increase the condenser refrigerant circulation volume, the target evaporation temperature is lowered so as to be within a range such that the evaporator does not freeze; and stagnancy avoidance priority control that is implemented in a case where stagnancy cannot be eliminated by the implementation of the stagnancy suppression control, and that controls the opening of an expansion valve in the open direction to further lower the target evaporation temperature and further increases the refrigerant circulation volume. |
