Komatsu PC138US-11 Operation & Maintenance Manual page 278

HANDLE AIR CONDITIONER
METHOD FOR OPERATING WITH COLD AIR TO FACE AND WARM AIR TO FEET
To operate with cold air blowing to the face and warm air blowing to the feet, set as follows.
1.
Press fan switch (2) and adjust the air flow.
At this time, check that set temperature (a) and air flow
rate (b) are displayed on "A/C Setting" screen of the moni-
tor.
2.
Press vent selector switch (4) and set the vent display as
shown in the figure.
3.
Press air conditioner switch (8) to turn it ON.
4.
Adjust fan switch (2), temperature control switch (3) and
FRESH/RECIRC selector switch (6) to the desired posi-
tions.
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OPERATION