| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve a problem on increase of cost of development, as a system and an electronic control device for controlling defrost of hot gas bypass are necessary, and it is necessary to divide the system and the electronic control device for a heat pump type electric device having a hot gas bypass circuit and a heat pump type electric device not having the hot gas bypass circuit. <P>SOLUTION: A defrost control output switch 26 capable of controlling the hot gas bypass circuit 23, and being switched on/off for a prescribed time exclusively for defrost of the hot gas bypass, is disposed, thus with or without of hot gas bypass defrost control can be selected in one system and one electronic control device. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
