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|1. (WO2018198390) AIR CONDITIONER|
|Applicants:||HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
Provided is an air conditioner in which an indoor heat exchanger can be suitably cleaned. This air conditioner (100) comprises: a refrigerant circuit (Q) in which a refrigerant circulates in a refrigeration cycle via a compressor (31), a condenser, an outdoor expansion valve (34), and an evaporator, in the stated order; and a control unit for controlling at least the compressor (31) and the outdoor expansion valve (34). One of the condenser and the evaporator is an outdoor heat exchanger (32), the other being an indoor heat exchanger (12). The control unit causes the indoor heat exchanger (12) to function as an evaporator, causes the indoor heat exchanger (12) to carry out freezing or condensation, and, after causing the indoor heat exchanger (12) to carry out freezing, increases the opening degree of the outdoor expansion valve (34).