Help hooking up shop compressor.

[jmedero]

This is what I ended up with.
I did have one more question. On the thermal switch off of t1 it had two wires. One on top and one off bottom. I hooked up the top one to l1 like you said. What's tge bottom one for? I just removed it.
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[_Ogre]

you have the thermal overload bypassed from what i can see.
it looks like you have the red wire to the thermal and the white wire to the pressure switch hooked to the spade connections on L1
hook the white wire from the pressure switch to the bottom of the thermal overload and you should be good. see my wiring drawing and it should make sense.
power flow for the coil should be: smaller red wire on L1 to thermal top, thermal bottom to white wire, white wire to pressure switch, contacts in PS go from white wire to black wire, black wire to Coil1 on coil, Coil2 to L2.

i don't see a way to turn the compressor on or off. a simple on/off toggle switch mounted in the side of the starter enclosure and cut into any wire in the pressure circuit wiring with allow you to turn it on/off. rather than hooking the white wire to the bottom of the thermal overload, hook it to a switch and then hook the other side of the switch to the bottom of the thermal.

ogre was a licensed electrician in a previous life, mostly in industrial controls. glad i could help