Komatsu H75051 Operation & Maintenance Manual page 286

HANDLE AIR CONDITIONER
METHOD FOR OPERATING DEFROSTER
Frost adhered to the outside of the window glass can be removed by defroster operation.
1.
Press the defroster switch to set the vents in DEF mode.
2.
Press FRESH/RECIRC air selector switch and set it to RE-
CIRC mode.
3.
Press the temperature control switch and set the tempera-
ture to 32.0 °C.
To remove frost quickly, press the fan switch and set the
air flow to "Hi".
METHOD FOR OPERATING DEMIST
Dew condensation adhered to the inside of the window glass can be removed by demist operation.
1.
Press the defroster switch to set the vents in DEF mode.
2.
Press air conditioner switch and perform the cooling or dry
heating operation.
To remove the dew condensation quickly, press the fan
switch to set the air flow to "Hi".
REMARK
Do not decrease the set temperature too much during the
demist operation. If cold air blows against the front window
glass, the outside of the glass mists and that may lower
the visibility.
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OPERATION