HVAC Module - General Description

HVAC Module - General Description:

The HVAC module consists of a recirc actuator, a mode actuator, blower motor and fan, a blower motor resistor, a heater core, and an evaporator core. The operations of these assemblies are controlled by the knobs and switches on the HVAC control panel.

Distribution of the air is controlled by the mode knob and buttons on the control assembly. The various positions of the mode knob and buttons direct cooled, heated, blended, outside, or inside air through the air ducts. The flow of air during the various modes of operations is as follows:
^ Face - Instrument panel outlets
^ Face and Feet - Instrument panel outlets and floor outlets
^ Feet - Floor outlets with a small amount of bleed air to defroster Feet/Defrost - Floor outlets and defroster with slight bleed to instrument panel outlets
^ Top - Defroster ducts with small amount of air to side window defoggers