| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hot water supply apparatus capable of reducing energy consumption. <P>SOLUTION: Except during hot water boiling operation, when a detection temperature T of a temperature sensor 41 is a set temperature T1 or lower, a circulating pump 31 is operated, and a compressor 11 is operated at a second operating frequency lower than a first operating frequency. The compressor 11 can thereby be continuously operated in a state of reduced heating capacity without being repeatedly operated and stopped, and energy consumption can be reduced. <P>COPYRIGHT: (C)2009,JPO&INPIT |
