실외 열교환기(730)로 공급된 냉매는 외기와 열교환하여 응축되며 기상 냉매가 액상 냉매로 바뀌게 된다.
The refrigerant supplied to the outdoor heat exchanger 730 is condensed by heat exchange with the outdoor air, and the gaseous refrigerant is converted into a liquid refrigerant.