Peterbilt 220, Operator'S Manual

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conditioning, quickly heat the cab, de-frost
the windows with the heater and keep out
undesirable odors.
NOTE
You are advised to switch on the re-
circulation without air conditioning for
short periods only to prevent the air
quality inside the cab from degrading
and moisture from increasing.
• Fan speeds with fresh outside air
ventilation valve open.
• Fan speeds with re-circulation
valve closed, hardly any supply of
fresh outside air.
Temperature Adjustment
The supply of heat can be smoothly set
from 0% (blue) to 100% (red).
To achieve faster heating when the
temperature outside is low, switch on the
recirculation. In damp weather conditions it
is recommended to reopen the
recirculation flap after heating to prevent
the windows from misting.
Air Distribution Selector
Switch
• Dashboard
• Dashboard vents and footwell
• Footwell vent
• Footwell and windshield vents
CONTROLS - Temperature Adjustment
42 Y53-6078-1B1 (12/18/18)
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