Electrical Information
Vehicle
Page 3-3
Crestline
Manual
1/11/2006
Coach
factory and ambulance batteries independently. For example, if the conversion side experiences a load
of sixty amps, but the factory side has a load of forty amps, the isolator allows the alternator to feed
each side theproper currentwhilepreventing thebatteries fromcross-feedingeachother.
Normally, the isolator requiresno regularmaintenance.
Fast IdleThrottleControl
The fast idle throttle control is automatically engagedwhen the unit isplaced inparkwith theemergency
brake applied. It advances the engine RPM so that the alternator can produce very close to its rated
output when the ambulance is at a scene. (The higher RPM also promotes better engine cooling,
especially if the air conditioner is running.) Dependingon themake of chassis, the throttle control is set
tomaintain engineRPMbetween1200 and1400.
The throttle control is connected such that it can only function if the vehicle is stationary with the
gearshift selector inPark. If youdonot use theemergencybrake, a lightmountedon thedashwill flash.
The chassis is supplied with a factory Auxiliary Idle Control Module that Crestline installs. More
information about set up and operation can be found in the attached instructions at the back of this
section. The systemmust beused toensure theelectrical systemoperatesproperly
