HVAC Control - General Description

HVAC Control - General Description:

The operation of the A/C system is controlled by the buttons, rotary switch, and knobs on the HVAC control. The compressor clutch and recirc motor are controlled electrically by push buttons on the control head.

Blower speeds are controlled in all modes by a five position rotary switch. The blower, compressor, and recirc motor are not operational when the blower switch is in the Off position. The recirc function will not operate when defog/defrost is selected. The controller will return the HVAC module operation to the mode that draws fresh outside air into the vehicle.

The temperature knob controls the temperature door through a cable from the HVAC control assembly to the HVAC module. The mode knob controls the various mode positions by a cable from the HVAC control to the HVAC module.