Komatsu PC118MR-8 Operation And Maintenance Manual page 180

AIR CONDITIONER
Operation with cool air at head level and warm air at foot level
To have cool air at head level and warm air at foot level,
proceed as follows.
1. Use the fan speed buttons (2) to adjust the fan speed.
Check that the monitor (7) displays the temperature (a) and
fan speed settings (b).
2. Press the vent selection button (4) and select the vents so
that the monitor appears as shown in the image on the
right.
3. Press the air conditioner button (8) to turn the air
conditioner on.
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FUNCTIONING
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