| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent the application of high load to a compressor when the heating load is reduced during the hot water heating operation in a device wherein a water refrigerant heat exchanger for hot water supply and a water refrigerant heat exchanger for heating are built in a refrigerant circuit of a heat pump unit to perform the hot water storage operation and the hot water heating operation. <P>SOLUTION: This heat pump type hot water heating device comprises the refrigerant circuit R obtained by successively circularly connecting a compressor 11 of which a capacity is adjustable, the first water refrigerant heat exchanger 9, the second water refrigerant heat exchanger 12, a decompressor 13 and an air heat exchanger 14, a first hot water circulation passage C1 for circulating the hot water between the first water refrigerant heat exchanger 9 and a hot water heater such as floor heating panels 1, 2 and the like, a second hot water circulation passage C2 for circulating the hot water between the second water refrigerant heat exchanger 12 and a hot water storage tank 25, and a control means S1 for forcibly circulating the hot water of the second hot water circulation passage C2 when a temperature of the hot water in the first hot water circulation passage C1 or a temperature of the refrigerant of the refrigerant circuit becomes more than a specific value during the hot water heating operation by the first hot water circulation passage C1. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
