HEATING AND AIR CONDITIONING
Fresh Air/Recirculation Switch
This switch controls the source
of the air flowing into the heater
and air conditioner unit
Recirculated air may reduce the amount
of time needed to cool down the interior of
the vehicle (when used with A/C) and may
also help reduce undesired outside odors
from reaching the interior of the vehicle.
This button can be engaged manually in
any non-defrost modes.
NOTE
You may notice changes in sound be-
tween recirculated mode and other air-
flow modes.
Sleeper Override Switch (for vehicles
with a sleeper)
Press this button if the user
wants to control the on/off
function of the sleeper heating
and air conditioning unit.
Using this button does not allow this
control unit to control sleeper blower
speed or sleeper temperature. It only turns
the sleeper heating and air conditioning
unit on or off.
Tips for Efficient Cooling
An air conditioner can reduce fog build
up on the windshield by setting it to the
defrost or the floor/defrost air selection.
To increase the effectiveness of the
air conditioner, use the A/C button
in the ON position, increase the air
temperature setting and/or increase
the fan speed.
If the cabin becomes humid or damp,
use the air conditioner with the fan
on, with fresh air (not in recirculate air
mode) and the A/C in the ON position
to dry the cabin air.
In situations where more cooling of
the cab is required, make sure the
system is in the recirculation mode.
This setting will be more effective than
using fresh air.
(03/17)
Y53-6076-1B1
3-77
3
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Summary of Contents for 365 2017
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