| 摘要 |
PROBLEM TO BE SOLVED: To realize effective defrosting according to the presence or absence of occupants. SOLUTION: When an occupant is in, an air mixing door 12 is controlled to a position where an indoor heat exchanger 11 is fully opened, whereas when no occupant is in, it is controlled to a position where the indoor heat exchanger 11 is fully closed. Accordingly, when an occupant is in, cooled air passing through an indoor evaporator 10 can be heated up by the indoor heat exchanger 11 and then blown into a cabin, whereas when no passenger is in, the fully heat in refrigerant discharged from a compressor 14 can be fully used for defrosting an outdoor heat exchanger 15.
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