8-4 Heating and air conditioning
1.3 Recirculation button
The recirculation button allows you to choose
between fresh outside air or recirculated inside air.
Press the button to select recirculated air. When
recirculated air is selected, the recirculation indica-
tor in the switch illuminates.
With recirculated air selected, press the button
again to toggle back to fresh air. The recirculation
indicator goes out.
• Outside air
Use this setting when driving in normal condi-
tions.
• Recirculated air
Use this setting when the outside air is dirty or
smoky. This setting can be used when parking
to prevent dust from entering the cab.
CAUTION
Do not use the recirculated air setting for a long
period of time (20 minutes or more). This will
cause the air in the cab to become stale. If this
happens, toggle to the fresh air setting.
NOTE:
• Select fresh air during normal driving.
• Do not select recirculated air when the humidity
is high. This makes the windows prone to fog-
ging.
1.4 Air selection switch
Use the air selection switch to direct air to the
selected outlet as desired.
• For airflow toward the upper body:
Place the air selection switch in the face
position.
• For airflow toward the upper body and
toward the feet:
Place the air selection switch in the bi-level
position.
Z05612
Z14910
Z14911
To Next Page
Loading...