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Internal Electrical Wiring
On the lower left of the frontside of the PCS3 [facing the blower outlets] is where the internal
wiring of the PCS3 resides.
Inside on the left of the terminal block is a 20 microfarad 120 vac motor starting capacitor. The
motor is wired at the factory to its high speed and heat transfer is based on this speed.
If the blower just hums, this motor starting capacitor will have to be replaced. Turn the power
off, remove the electrical cover panel and replace the capacitor. Ensure the new capacitor is
wired as the original was and is as shown. The motor wiring diagram is shown on the inside of
the electrical cover panel. The ETL certification requires that the unit ship without a power
cord due to its location in the attic. Wire the power to the PCS3 in accordance with local
electrical codes for safe operation of the unit.
