Control Assembly: Description and Operation
FUNCTION SELECTOR SWITCHThe function selector switch combines a vacuum selector valve with two electrical switches to supply battery voltage (B+) to the A/C clutch circuit and the blower motor speed control circuit.
TEMPERATURE CONTROL SWITCH
Temperature selection is accomplished with a potentiometer connected to the electric blend door. Movement of the temperature control switch from COOL (blue) to WARM (Red) causes a corresponding movement on the air temperature that the air system will maintain.