GF83.70-P-4063GZ PTC Heater Booster, Component Description

GF83.70-P-4063GZ PTC Heater Booster, Component Description

Component Identification:

Location
The PTC heater booster is installed on the side of the AC housing in the front.

Task
The PTC heater booster is actuated by the AAC [KLA] control and operating unit (N22) via the LIN bus. The automatic air conditioning controls the heat output so that the battery is protected to the extent possible.

Function
The electric PTC heater booster (Positive Temperature Coefficient) has 1700 watts and is used to support the heater. It is located in the AC housing. The fresh air flows into the interior compartment via the heater heat exchanger and the PTC heater booster.

The PTC heater booster is installed in vehicles with diesel engine, since these engines produce too little waste heat during cold start or with partial load.