Help with air compressor motor wiring

Blaze

Blaze

The Jeeper Reaper
Joined
Aug 9, 2005
Location
Wake Forest, NC
I am trying to wire up an air compressor at my shop and I am at a loss. It is an ancient Wayne compressor, big mother, with a 3hp GE motor on it. It is 220V single phase.

I have 3 phase power here at the shop, but I have it wired up only using two legs. I know I have the disconnect to the pressure switch to the motor box all correct, but I have no damn clue as to what wires to hook to where on the motor. There is no wiring diagram and I can't see to find anything online. The worst part is that all the wires are red. From what I can tell, I have three tags on the wires, a 1, a 2, and a 4.

The ones that are labeled in the pic (I'll check which numbers are which tonight) are the one with the red wire nut, the one with the clear wire-nut looking crimp fitting next to it, and the one with the straight crimp fitting in the middle. The one wire on the far left does not have any label and it connects to the little motor protector on the left side of the box. The one with the red wire nut goes to the capacitors and the other one goes somewhere. My picture sucks. I'll get better ones tonight.

So where the hell do I hook my two wiring legs to?
 

Attachments

  • 2017-03-12 18.53.57.jpg
    2017-03-12 18.53.57.jpg
    87.2 KB · Views: 191
Very hard to tell from the pic you have for sure but looks like one hot wire will hook to the red wire nut along with the 2 other wires. One wire off the wire nut should be feeding straight to motor on the run windings. The other wire out the wire nut will feed the capacitors then leaves the capacitors and feeds the start winding on the motor. The other wire with out the wire nut should feed to the common windings on the motor and looks from pic to be going through that switch first. The other wire nut looks to be a crimped wire nut and should be left as is. Take advice at your own risk but what it looks like to me.
 
Eenie meanie minie moe.....zzzzzaaaapppppp
 
OK, so I got it figured out. Or I did all along. he electrical panel in my shop is mislabeled and apparently the one that said compressor was not actually the compressor.

This sucker runs good.
 
Blaze said:
OK, so I got it figured out. Or I did all along. he electrical panel in my shop is mislabeled and apparently the one that said compressor was not actually the compressor.

This sucker runs good.
Click to expand...

What compressor head are you running? Just curious.
 
Back
Top