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Home >> Ford >> 2015 >> Transit-350 HD Base, Van Cargo Extended >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Supplemental Climate Control System >> Description And Operation >> Supplemental Climate Control - System Operation and Component Description >> Component Description
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Component Description

Electric Booster Heater 

The electric booster heater is comprised of 3 separate PTC elements and a microcontroller. The microcontroller allows the 3 PTC elements to be activated or deactivated individually or together depending on the PWM input from the BCM.