| 摘要 |
PROBLEM TO BE SOLVED: To promptly improve heating property by securing heating capacity under a low-temperature environment while reducing refrigerant stayed in a cycle, and by improving temperature rising property of hot water as a heat source for a hot-water heat exchanger in a heat pump cycle for a dual air conditioner. SOLUTION: A circuit for supplying hot gas is provided with a compressor 16 for compressing the refrigerant, an outdoor condenser 1 arranged outside an air conditioning unit, a front blower 8 arranged inside a front air conditioning unit 1, an evaporator 4, a front sub condenser 5, a front hot-water heater 6, a rear blower 9 arranged inside a rear air conditioning unit 2, a rear sub condenser 11, and a rear hot-water heater 12. At the time of heating operation, the rear blower 9 is stopped and the refrigerant compressed by the compressor 16 is fed in the evaporator 4 via the rear sub condenser 11. After radiating heat of refrigerant in the evaporator 4, it returns to the compressor after detouring the outdoor condenser 1.
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