| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump hot-water supply device capable of securing durability of a compressor even when temperature of the water flowing into a heat exchanger for hot water supply is high. <P>SOLUTION: This heat pump hot-water supply device comprises a heat pump cycle 20 constituted by circularly connecting the compressor 21, the heat exchanger 22 for hot water supply, an intermediate heat exchanger 23, an expansion valve 24 and an evaporator 25 by piping, and a hot water storage tank 31 for storing the hot water heated by using the heat pump cycle 20. When water supply temperature is high, a refrigerant from the heat exchanger 22 for hot water supply is cooled by the intermediate heat exchanger 23, thus the heat pump cycle 20 can be operated safely without increasing pressure. <P>COPYRIGHT: (C)2008,JPO&INPIT |
