PSG MAX CADDY Installation And Operating Instructions Manual page 17

Once the RTD probe is installed on the RTD support bracket, you need to connect the RTD probe to the control
PCB. To run the wire properly, refer to the drawings below. Refer to the electric wiring diagram in section 7 for the
electrical connections.
RTD probe installed on the RIGHT side of the furnace
RTD probe installed on the LEFT side of the furnace
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