| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable boiling-up operation by a heat pump, even when the hot water temperature in a hot water storage tank 21 is high. <P>SOLUTION: A radiator 33 is arranged in a space until hot water coming out of the hot water storage tank 21 enters a heat exchanger 23, and after lowering the temperature of hot water, the hot water is put in the heat exchanger 23, to boil up by the heat pump. When the hot water temperature in the hot water storage tank 21 is low, heat efficiency is not deteriorated by bypassing the radiator 33 by a selector valve 34. Quantity of heat lost in a system can be minimized, by recovering heat coming out of the radiator 33 by an evaporator 26, by bringing the radiator 33 near to the evaporator 26. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
