operators_manual

Air Dehumidification
The air conditioner system can be used to
reduce the humidity level of the cab and
clear fog from the windshield.
• Adjust fan speed to the desired
airflow setting.
• Engage the air conditioner
compressor by pressing the air
conditioner button.
• Set the air source to outside air
mode by pressing the outside air /
recirculation air button. The button
indicator light should NOT be
illuminated.
NOTE
That the A/C compressor may not en-
gage when the outside temperature is
below 34ºF (1ºC).
Cab Air Distribution
Equal distribution of air is important in
maintaining a constant cab interior
temperature. For best performance, all
vents should remain open to allow the
AUTO mode to function properly. To
maintain the selected cab temperature the
AUTO mode may provide an air
temperature from the vents that differs
from the temperature set point. To ensure
proper operation, it is recommended that
the driver redirects the air instead of
adjusting the temperature set point or
closing the vent. The system may have
difficulties in obtaining the desired cabin
temperature if the temperature setting is
repeatedly changed.
The mode of air distribution inside the cab
is set using the air distribution dial. Five
icons on the dial indicate the primary mode
options. The driver may also select a
secondary mode in between the primary
modes indicated by points on the dial.
Airflow is provided to the side windows in
all modes.
Outside Air / Recirculation Air
Selecting air recirculation mode completely
isolates the cab interior from the outside
air. This mode is helpful in preventing dust,
pollen, and odors from entering the cab.
Additionally, recirculation mode can reduce
the amount of time needed to cool down
the vehicle while in maximum cool down.
Note that the mode may increase fogging
on the windshield. A coarse air filter is
provided for recirculation air and is located
under the IP. The outside air mode
provides for 100% outside air into the cab.
This mode is helpful with windshield
defogging. A pleated air filter located under
hood provides filtration for dust, pollen, and
debris. If equipped, your vehicle may also
provide for ember filtration or fine
particulate filtration.
Related concepts
Sleeper Alarm Clock
The Optional Sleeper may include an
alarm clock for the sleeper occupants.
1. Alarm - press to turn on the alarm
2. Snooze - press to snooze the
alarm bell
3. Dimmer/brighter - press to make
display brighter
4. Dimmer/darker - press to make
display less bright
5. Increase value of setting
6. Decrease value of setting
CONTROLS - Sleeper Alarm Clock
120 Y53-6047-2HEN (03/18)
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