Wiring Mistake Prevention - Panasonic CS-A24BB4P Service Manual

21. WIRING MISTAKE PREVENTION

Improved quality of installation work through adoption of an "Connection error prevention"
circuit which prevents wiring mistakes
Connection errors with the control wires and the power supply wires will not only contribute to
burning-out of the control circuit board, but can also cause large-scale working losses and
affect reliability. If a circuit board with a "Connection error prevention" circuit is used, the relay
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