| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce standby power of an electric apparatus in a simple configuration. <P>SOLUTION: A heat source machine 27 connected to a commercial power supply 3 via a switch circuit 4 is signal-connected to a remote control device 1 via two communication lines 2, and when the heat source machine 27 is connected to the commercial power supply 3, a battery power source 14 of the remote control device 1 is charged with power from the commercial power supply 3 via the heat source machine 27 and the communication lines 2. When an operation switch 35 of the remote control device 1 is operated to power down the heat source machine 27, a corresponding operation signal is applied to a latch relay circuit 9 of the heat source machine 27, and the latch relay circuit 9 disconnects a power circuit 5 of the heat source machine 27 from the commercial power supply 3 to reduce standby power of the heat source machine 27 to zero. When the operation switch 35 is operated for power application and when the voltage of the battery power source 14 drops to or below a set value while the heat source machine 27 is disconnected from the commercial power supply 3, power is supplied from the battery power source 14 to the heat source machine 27 to reconnect the power circuit 5 to the commercial power supply 3. <P>COPYRIGHT: (C)2013,JPO&INPIT |
