| 摘要 |
<P>PROBLEM TO BE SOLVED: To keep the connection of an AC line in the off-state of a second switch means during an operation of a heat pump-type hot water supply device. <P>SOLUTION: In this control device of the heat pump-type water heater composed of a first switch means 12 disposed at one side of an AC line for connecting and disconnecting the AC line, the second switch means 13 inserted in parallel with the first switch means 12, a PTC thermistor 14 connected in series with the second switch means, and a microcomputer 21 for controlling the first and second switch means, the second switch means 13 is turned on only in a process of connecting the AC line, and thus the connection of the AC line can be kept in the off-state of the second switch during the operation of the heat pump-type hot water supply device. <P>COPYRIGHT: (C)2009,JPO&INPIT |
