Mix-Blend Mode

When Mix-Blend is selected, air is delivered to the windshield outlets and the floor outlets. Vacuum is applied to the mode actuator through the Red vacuum line and the defroster actuator is in neutral. The mode actuator will push, closing the Vent Door. Vacuum is bled off the defroster actuator and will hold the Defroster Door stationary in the half open position. The Heater Door will also be held stationary in the half open position through mechanical linkage.