Control Assembly: Description and Operation

DESCRIPTION
The purpose of the climate control system is to route air to the designated registers. This is accomplished when air enters the plenum through the fresh/recirculated air inlet and is routed to the desired outlets by the use of distribution doors.

The air distribution system contains the heater core, A/C evaporator core, blower motor and all of the distribution doors. All of the air is mixed and distributed inside of the plenum assembly, depending on the distribution door positions.

CONTROL SYSTEM INPUTS
The climate control system inputs are selected manually from the climate control assembly.

CONTROL SYSTEM OUTPUTS
The air management doors are controlled by vacuum control actuators and an electronic blend door motor. The air inlet and distribution doors are controlled by vacuum control actuators. The temperature blend door is controlled by the electronic motor.

The electronic blend door motor provides a infinite number of temperature blend door positions. Temperature control position energizes the electronic motor moving the temperature blend door.

Vacuum control actuators are used on both air distribution and air inlet doors. Vacuum control actuators are controlled by the climate control assembly through the engine vacuum.