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Home >> Land Rover >> 2000 >> Range Rover Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic A/C-Heater Systems >> Operation >> A/C System Control >> Temperature Control
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Temperature Control

ATC ECU supplies battery voltage to temperature servos to set position of blend air flaps in heater unit. To change drive direction, ATC ECU reverses polarity of battery voltage. ATC ECU determines required position of blend air flaps based on ambient air temperature, target temperatures and fresh/recirculated air selection.