Komatsu PC118MR-8 Operation And Maintenance Manual page 175

FUNCTIONING
(5) Auto button
If button (5) is pressed, fan speed, vent selection and air
source (FRESH/RECIRCULATE) are automatically adjusted in
accordance with the set temperature.
q Press button (5), adjust the temperature with buttons (3)
and set the air conditioner to automatic mode.
q When switching from automatic to manual mode, the vent
and air source (FRESH/RECIRCULATE) selection buttons
may be used.
REMARK
If a temperature of 18.0 °C or 32.0 °C is set in Auto mode, fan
speed remains set to High. This is not a fault.
(6) Fresh air/recirculate selector
This button (6) toggles between recirculated air from inside the
cab and air drawn from the exterior.
q In Auto mode, internal (RECIRCULATE) or external
(FRESH) air is selected automatically.
External air cannot enter the cabin and internal air only is recirculated.
RECIRCULATE
Use this mode to cool the cab quickly or if the external air quality is poor.
External air is drawn into the cabin.
FRESH
Use this function to draw fresh air into the cab to demist the screen.
(7) Image shown on Monitor
The monitor (7) displays the temperature (a), fan speed (b) and
vent selection (c) settings.
q When the OFF button (1) is pressed, the temperature (a)
and fan speed (b) settings are no longer displayed and the
air conditioner turns off.
WEAM014802
AIR CONDITIONER
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