IC Bus CE Series 2020, Operation And Maintenance Manual

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Climate Controls
Adjust the temperature knob to
control the temperature of the air
through the heater vents.
The heater fan speed is controlled by the driver heater defrost
fan switch on the left console switch panel.
Auxiliary Heaters
The Midship / Rear heater switches provide blower speed control
for the passenger compartment heaters and are located on the
left switch panel. The control switch is labeled OFF / LO / HI.
Defrost Operating Instructions
The defroster blower is controlled by the three-position (OFF /
LOW / HIGH) DRIVER HEATER / DEFROST fan switch, located
on the left switch panel. Press the switch to the desired position
to control blower speed.
Air is directed through the defrost duct to the windshield and side
window outlets utilizing the defrost climate control heat selector.
Use this mode at maximum fan speed and temperature setting
for best windshield and side window defrosting.
If equipped, the optional step well heater may be turned ON for
added air flow to the defroster vents.
Auxiliary Fuel-Fired Heater System (Optional)
Introduction
The auxiliary heater system is designed to provide additional
heating capacity in cold weather conditions.
The auxiliary heater system is connected directly into the fuel
and power supply of the bus: therefore, external hook-ups are
not needed and the auxiliary heater system can be operated no
matter where the bus is located.
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