Navistar WorkStar Series, Operator'S Manual

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Controls/Features
MAX Air Conditioning Mode
In this mode, all airflow is directed to the panel air outlets and the air is recirculated inside the
vehicle. Use this mode to block out any outside odors, smoke, or dust and to cool the interior
rapidly upon initial start up in very hot or humid weather.
NOTE: Continuous use of the recirculation mode may make the inside air stuffy. Use of this mode
for longer than fifteen minutes without a window slightly open is not recommended.
The A/C compressor turns ON and OFF automatically as needed when in this mode.
NORM Air Conditioning Mode
In this mode, all airflow is directed to the panel air outlets. Fresh (outside) air is used to cool the
vehicle in this mode.
The A/C compressor turns ON and OFFautomatically as needed when in this mode.
Bi-Level Air Conditioning Mode
In this mode 75 percent of the airflow is directed to the panel air outlets and 25 percent of the
airflow is directed to the floor air outlets, and fresh (outside) air is circulated inside the vehicle.
The A/C compressor turns ON and OFF automatically as needed when in this mode.
Vent Mode
In this mode, all airflow is directed to the panel air outlets, and fresh (outside) air is circulated
inside the vehicle.
Floor Mode
In this mode, all airflow is directed to the floor air outlets, and fresh (outside) air is circulated
inside the vehicle.
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