AIR-CONDITIONING AND WATER-HEATING COMPLEX SYSTEM

摘要

There is provided a heat pump apparatus allowing heating water to a high temperature by connecting one or a plurality of load-side units to one heat source-side unit. The air conditioning-hot water supply combined system 100 (heat pump apparatus) includes a heat source-side unit 10 equipped with an air conditioning compressor 101, a four-way valve 102, and an outdoor heat exchanger 103; and the load-side units 50 equipped with an air conditioning throttle means 117, an indoor heat exchanger 118, a second compressor 53, a second load-side heat exchanger 54, and a second flow rate control unit 55. Here, a main circuit A is configured by sequentially connecting the air conditioning compressor 101, the four-way valve 102, the outdoor heat exchanger 103, the air conditioning throttle means 117, and the indoor heat exchanger 118, using a high-pressure side connection piping 106 and a low-pressure side connection piping 107. On the other hand, a load-side refrigerant circuit B is configured by sequentially connecting the second compressor 53, a second load-side heat exchanger second load-side heat exchanger 54, the second flow rate control unit 55, and the indoor heat exchanger 118 using a load-side refrigerant piping 56.