| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat pump type hot water supply device capable of efficiently performing a boiling-up operation at all times on the basis of an outside air temperature and an inflow temperature of the water for hot water supply, flowing into a water heat exchanger. <P>SOLUTION: A first water inflow temperature corresponding to a first outside air temperature of high temperature, a second water inflow temperature corresponding to a second outside air temperature of low temperature, and a third water inflow temperature corresponding to an intermediate temperature between the first and second outside air temperatures are set. A first boiling-up operation for operating a compressor 11 with a predetermined frequency according to a boiling-up temperature is performed when the water inflow temperature is less than the first water inflow temperature, the second water inflow temperature or the third water inflow temperature, and a second boiling-up operation for operating the compressor 11 with a frequency higher than that in the first boiling-up operation is performed when the water inflow temperature is higher than the first water inflow temperature, the second water inflow temperature or the third water inflow temperature, thus the boiling-up operation can be efficiently performed at all times on the basis of the outside air temperature and the water inflow temperature even when the outside air temperature is fluctuated by the change of weather and season. <P>COPYRIGHT: (C)2010,JPO&INPIT |
