Oh this one should get all the pros worried..
I am curious about signal wiring of the thermostat and most importantly the condenser. I have my 2, 120V contactor wires coming from the condenser but where in the air handler do they go? Also, there are some taps in the handler Marked, W, R, G, C, etc. I do NOT like to simply rely on color matching to wiring things. I wanna "know" how this thing is wired.
I do have the schematic for the system in my hand but does not indicate a voltage on half of the stuff and certainly does not include an output for the condenser coil contactor. Where does this power come from? There just does not seem to be enough wires to get this all done.
I guess maybe 3 is all that is needed? Request for heat, request for cool, common.... Maybe I am over complicating this..