OM-2245 / Operation and Maintenance Manual
ITW GSE 4400 / 400 Hz. Generator Set
March 15, 2015
Chapter 1-1
Page 17
10) Cold Weather Starting System (BH1)
The intake air heater, located on the intake manifold, is used for starting the engine at very cold
temperatures and reduces the white smoke associated with a cold start. The intake air heater (or grid
heater) is energized or de-energized from a power relay controlled by the ECM. The amount of time the
air intake heaters stay on, in the preheat phase, is a function of the intake manifold temperature at start
up. (The pre-heat time increases with colder intake manifold temperatures). The maximum duration of
the pre-heat phase is around 30 seconds.
CAUTION
Never use an ether start system in conjunction with the air intake heater.
Figure 1-1-6: Air Intake Heater
Air Intake Heater
