Wiring power to the Speedaire compressor

by Richard
(Tulsa OK.)

Do I run my power supply to the pressure switch or to motor?

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Oct 14, 2016
Pressure switch or to motor?
by: Bill

To the pressure switch first Richard, and then from it to the motor.

If you power directly to the motor the compressor will run and run, will not shut off on cut out pressure, and either self destruct or blow a tank or line. Not something you wish to have happen.

The pressure switch cycles the compressor ON / OFF depending on compressed air use, and it, along with the PRV, are the two devices on the compressor that prevent an over-pressure scenario from occurring.

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