AIR CONDITIONER OUTDOOR UNIT

摘要

PROBLEM TO BE SOLVED: To prevent degradation in heat exchange efficiency even if a phenomenon that causes an increase in ventilation resistance such as frosting occurs and the ventilation resistance of a heat exchanger increases.SOLUTION: In an air conditioner outdoor unit 11, a control unit 5 executes a normal operation for making a flow volume of refrigerant flowing in an upper heat exchange unit 14A higher than a flow volume of refrigerant flowing in a lower heat exchange unit 14B in a case where a state of a heat exchanger 14 is a first normal state, and executes a flow-volume regulating operation for reducing a rate of the flow volume of the refrigerant flowing in the upper heat exchange unit 14A as compared with the normal operation in a case where a state of the heat exchanger 14 becomes a second state that has larger ventilation resistance compared to the first state.