Blower Motor Control - Single Zone Manual System

Blower motor speed is set by turning the RH rotary controller to the required position. The RH rotary controller allows the selection of 14 blower motor speeds. Turning the controller fully counter clockwise will turn the blower motor off.

Operation of the blower motor is controlled by the ATC module via the blower motor control module. The ATC module provides a PWM signal to the blower motor control module based on the selected blower speed. The blower motor control module interprets the PWM signal as a blower motor speed and controls the voltage to the blower motor accordingly.