| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an energy-saving water heater utilizing exhaust heat in a cooling operation, to supply hot water. <P>SOLUTION: This heat pump hot water supply heating/cooling device is composed of a circuit constituted by circularly successively connecting at least a compressor 1, a heat exchanger 2 for hot water supply, a four-way valve 3, a first throttle device 4, an outdoor heat exchanger 5, a second throttle device 6 and an indoor heat exchanger 7, a refrigerant circuit composed of a circuit 9 branched from between the outdoor heat exchanger 5 and the second throttle device 6, and connected between the indoor heat exchanger 7 and the four-way valve 3, and a hot water supply circuit connected with the heat exchanger 2 for hot water supply, to be used as a flow channel of hot water heated by the heat exchanger 2 for hot water supply. As the hot water storage operation can be performed by utilizing the exhaust heat in the cooling operation, the operation can be performed with high efficiency, and power consumption can be reduced. <P>COPYRIGHT: (C)2007,JPO&INPIT |
