Electrical Information
Vehicle
Page3-3
Crestline
Manual
9/20/2007
Coach
Battery Isolator
The battery isolator, which is located in the Electrical Control Centre, allows the alternator to
charge the 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 the proper current while preventing the batteries from cross-feeding
eachother.
Normally, the isolator requires no regularmaintenance.
Fast IdleThrottleControl
The fast idle throttle control is automatically engaged when the unit is placed in park with the
emergencybrake applied. It advances the engineRPM so that the alternator canproduce veryclose
to its rated output when the ambulance is at a scene. (The higherRPM 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 stationarywith the
gearshift selector in Park. If you do not use the emergencybrake, a lightmounted on the dashwill
flash.
The chassis is suppliedwith a factoryAuxiliary 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 to ensure the electrical systemoperates properly
