Komatsu 06253 Operation & Maintenance Manual page 130

3.5 OPERATING THE HEATER, VENTILATION AND AIR CONDITIONING OPERATION
Luminous Indication.
Function of Indication when"Engine On" and Controller
active. See Illustration Z 25574
LED Field L1: Standard indication is the setpoint temperature.
LED Field L2: Fresh air operation (green)
LED Field L3: Manual blower control "ON" (green)
LED Field L4: Cooling/Heating mode (green)
LED Field L5: Malfunction cooling unit (red).
Operating Instructions.
When the engine is running, press any key to activate the air con-
ditioning control unit.
All previous settings are reactivated.
Display
When the unit is ON, the display shows the interior setpoint tem-
perature. When selecting individual functions, the display shows
the corresponding information for a short period of time. The dis-
play is dark when engine or control unit are OFF.
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