| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioner free from breakage of circuit components even when a plurality of connecting wires are wrongly combined and connected, in a circuit constitution having a plurality of circuit blocks connected by power supply wires and signal transmitting wires. SOLUTION: Switches are respectively mounted between A and B terminals, and C and D terminals as outdoor-side electric components, and the outdoor electric components are not operated unless a commercial power source is connected with L and N terminals to which it is properly connected. As a principle, the power source is not started to be applied to coils of the switches as a part of circuits in the outdoor-side electric components, when the power wire is connected with the A, B terminals or C, D terminals, so that the switches are kept in opened states, and the air conditioner is stopped, thus a board can be protected without broken. COPYRIGHT: (C)2007,JPO&INPIT |
