Air Distribution System Description 1

Air enters the heater and ventilation system where it is heated as necessary before being sent to the proper ducts and outlets for discharge into the passenger compartment. Within the heater case, doors guide the airflow in response to the positions of the temperature control knob and the mode control knob in the heater control unit. Depending on the mode selected, the mode doors mix and direct either cooled, heated, or outside air through the air ducts.