Temperature Control Knob

Temperature control knob (left knob) is located below radio. Temperature door is controlled by an electric actuator, based on temperature knob position. When temperature knob is in cold (Blue) position, air delivered by system is unheated. When temperature knob is in hot (Red) position, all air passing through heater module is heated before it is discharged. Intermediate position of temperature knob results in a mixture of heated and unheated air to provide moderate air temperatures.