gf2000p1001ed

High-voltage battery heater, component description

Type gf · topic 20.00 · version 0101 · 2013-08-13

Applies to: ENGINE 780.993 in MODEL 451.390/392/490/492

Where it sits

Function group 1 Engine › 20 Engine cooling system › 20.00 General — Series 451 (models 390, 392, 490, 492)

Also applies to engines/gearboxes: 780 993

GF20.00-P-1001ED

High-voltage battery heater, component description

29.7.13

ENGINE

780.993 in MODEL 451.390/392/490/492

High-voltage battery heater, component description


Location
The high-voltage battery heater is screwed onto the underside of the vehicle in the front area on a longitudinal strut.

R101

High-voltage battery heater

P20.00-2445-76

Task

The high-voltage battery heater heats the coolant in a small cooling circuit for the high-voltage battery (G5). In this way the high-voltage battery is heated at low outside temperatures.

The high-voltage battery heater is actuated by the drivetrain control unit (N127) over the 12V PTC heater booster relay (K165). Actuation takes place exclusively in charging mode and for a determined temperature of the high-voltage battery of T < 0°C.