4.Printed Circuit Board Connector Wiring Diagram
4.1 Indoor unit
Connectors Indoor PCB
1)CN1connector for transformer input
2)CN2 connector for terminal block.
3)CN3 connector for transformer output
4)CN5" or CN5"(1) connector for up and down step motor.
5)CN6 connector for ambient temp. sensor and piping temp.sensor.
6)CN7 connector for receiver display.
7)CN8 connector for AC fan feedback motor.
8)CN9 connector for AC fan motor.
CN9
CN1
CN2
18HEK03
CN3
CN8
CN7
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CN5" /CN5"(1)
CN6