UM0277

Wiring connections

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Appendix B

Wiring connections

For the NTC thermistor, you just have to connect its terminals to the “NTC” connector. Its

wires can be connected in any way as it is just a resistor.

The same procedure can be achieved for the Light Bulb and Defrost resistors.

For the motor, things are more complex. The two following figures show where the RUN and

LINE terminals are usually located for most compressor starters. These two terminals must

be connected to the board “motor” header.

Figure 15.

Compressor starter, case 1

Figure 16.

Compressor starter with Klixon, case 2