| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an instantaneous heat pump water heater capable of extending a hot water supply operation time at a time of low outside air temperature when an evaporator is frosted. <P>SOLUTION: In hot water supply utilizing a heat pump and a hot water storing tank, a control circuit is formed for controlling heating capacity of the heat pump to control frost formation. <P>COPYRIGHT: (C)2007,JPO&INPIT |
