| 摘要 |
PROBLEM TO BE SOLVED: To effectively prevent the occurrence of a trouble of an apparatus, of which a device consists, and a slip of a wheel by a low-cost means, in a heat pump heating type heating device having a compressor driven by a vehicle engine. SOLUTION: This air-conditioning device comprises a compressor 6 driven by the shaft output of an engine 1 and feeding compressed refrigerant steam, a heat-exchanger 11 on the indoor side, an expansion means 12, a heat-exchanger 7 on the outdoor side to heat a refrigerant by a heating medium through the expansion means 12, a pressure detecting means 21 to detect the pressure of a refrigerant fed from the compressor 6, and a control means 23 to limit heating of a refrigerant by the heating medium so that a heating amount is reduced or reduced to zero.
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