Wiring Connections on AC Thermostat Switch
 

I have just replaced my original AC thermostat switch (91161312100) with the supersession (91161312101). On the original switch, a green wire w/white tracer was attached to Terminal #1 and a solid green wire was attached to Terminal 2, the terminals on the new switch are labeled as # 3 & 4; which wire goes where?

I don't think it matters. Probably works either way. Pick one or flip a coin and see how it goes.

+1

It doesn't matter as it's just an inline switch which will stop and start current to the AC clutch.

Thank you both for the explanation!