Komatsu PC30MR-5 Operation & Maintenance Manual page 224

HANDLE AIR CONDITIONER OPERATION
TEMPERATURE CONTROL SWITCH
Use the temperature control switch to adjust the inside temper-
ature.
Lower the inside temperature.
Turn the temperature control switch counterclockwise.
Raise the inside temperature.
Turn the temperature control switch clockwise.
AIRFLOW SELECTOR SWITCH
Air flow selector switch can adjust air flow in 3 levels.
(3) High position
Air flow rate is high.
(2) Medium position
Air flow rate is medium.
(1) Low position
Air flow rate is low.
(0) OFF position
Air flow stops.
AIR VENT
Blow direction can be adjusted by turning the louver of each
vent.
FRESH/RECIRC AIR CHANGEOVER LEVER
Use FRESH/RECIRC air selector lever to switch the air source
between recirculation of the air inside the cab and intake of
fresh air from the outside.
(a) FRESH
Outside air is taken into the cab.
Use this setting to take in fresh air or to demist the window
glass.
(b) RECIRC
Outside air is shut off and only air inside the cab is circulated.
Use this setting to perform rapid cooling of the cab or when outside air is dirty.
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