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Kenny hill
09-17-2013, 10:25 AM
I just purchased a new Speedaire 1WD54 3ph 5hp 230v air compressor. I am trying to wire the remote start stop station which will be outside the compressor room. The compressor has a NEMA sz1 controller. I am trying to figure out where to break the circut from the pressure switch to the controller coil to start and stop the air compressor. The compressor this one is replacing had a seperate pressure switch which was wired totally separate most likey do to it being over 40 years old. Can someone give me a wiring diagram for the stop start configuration with a nema sz1 controller for a 3 ph air compressor?

Thanks in advance

Kenny