Komatsu PW98MR-10 Operation & Maintenance Manual page 276

HANDLE AIR CONDITIONER
METHOD FOR OPERATING DEFROSTER
1.
Press fan switch (2) and adjust the air flow rate.
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 to
(f) or (g) shown in the figure.
3.
Press FRESH/RECIRC selector switch (6) and set it to
FRESH mode.
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OPERATION