Sleeper Heater - A/C Controls (Optional) - Peterbilt 579 Operator's Manual

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.
(04/13)
Sleeper Heater - A/C
Controls (optional)
1. Fan Control Dial
2. Temperature Control Dial
3. Air Conditioner Button
Unlike the cabin air temperature
controls, the sleeper temperature
control will alter the air temperature
based on the knob setting. The
temperature control is not keyed
to specific temperatures. Turning
counterclockwise means cooler than
it is now. Clockwise means warmer
than it is now. Once the desired
temperature is reached, the system
will maintain it automatically.
Y53-6047–2C
HEATING AND AIR CONDITIONING
A separate switch on the dash HVAC
unit will send power to the "bunk" or
sleeper control unit The button on the
cab HVAC unit must be pressed and
in the on mode to use the sleeper
controls.
The sleeper control unit has three
controls:
1. Air Speed Control
2. Air Conditioner Compressor
On/Off
3. Air Temperature Control
3
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