| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump type hot-water heating device capable of preventing blowing-off of warm air from a cooling terminal and cooling of hot water in a hot water supply tank in switching an operation. <P>SOLUTION: The heat pump type hot-water heating device includes: a refrigerating cycle constituted of a compressor 1, a four-way valve 2, a water-refrigerant heat exchanger 3 exchanging heat between a refrigerant and the water, a pressure reducing device 4, and an outdoor heat exchanger 5; a water circuit 20a for hot water supply constituted of the water-refrigerant heat exchanger 3, a flow channel switching valve 26 for switching a flow channel of the water from the water-refrigerant heat exchanger 3, a hot water storage tank 22 for storing water of high temperature, a flow channel collecting section 25 for the water returning to the water-refrigerant heat exchanger 3, and a water pump 8 for distributing the water to the water-refrigerant heat exchanger 3; a water circuit 20b for cooling configured by successively connecting the water-refrigerant heat exchanger 3, the flow channel switching valve 26, a cooling terminal 24 for cooling the air by cold water from the water-refrigerant heat exchanger 3, the flow channel collecting section 25, and the water pump 8; and a bypass water circuit 20c configured by connecting the flow channel switching valve 26 and the flow channel collecting section 25. The water is allowed to flow to the bypass water circuit 20c until a water inflow temperature to the water-refrigerant heat exchanger 3 reaches a prescribed temperature. <P>COPYRIGHT: (C)2012,JPO&INPIT |
