| 摘要 |
PROBLEM TO BE SOLVED: To enlarge the control width of a heating capacity in an air conditioner which controls an opening degree of an expansion valve so that a super-cooling degree of a coolant at an outlet of an indoor heat exchanger can reach a target super-cooling degree during heating operation.SOLUTION: The air conditioner 1 includes a coolant circuit 10 constituted of a compressor 31, the indoor heat exchanger 33, an indoor expansion valve EV1, and an outdoor heat exchanger 21 which are connected in series. The air conditioner 1 enlarges the target super-cooling degree when the operation capacity of the compressor 31 is increased to a target super-cooling degree change starting capacity near the maximum value of the operation capacity of the compressor 31. |
