Temp control switch???

Hey everyone. I have been trying to get the AC working in my 71 Swinger. Found out my Push Button switch was not working, so I bought one from Rock Auto. Now the fan is working but still having trouble with AC. I can wire the comprossor from battery to get the ac clutch to kick in. So I have done some searching and found the temperature control switch is not working. Does anyone know if I can just bypass the switch? In the FSM it says the temp control switch controls the temp of the evaporator and turns the clutch on and off. How will that affect the workings of the ac? thanks