Komatsu D85EX-18 Operation & Maintenance Manual page 254

HANDLE AIR CONDITIONER
AUTO SWITCH
Use the auto switch for automatic selection of the air flow,
vents, and air source (FRESH/RECIRC) according to the set
temperature.
• Press this switch, then use temperature control switch (1)
to set the temperature, and run the air conditioner under
automatic control.
• When switching from automatic operation to manual oper-
ation, it is possible to use the switches to select the vents
and air source (FRESH/RECIRC).
REMARK
When Auto Mode is selected, if the set temperature is set to
18.0 °C or 32.0 °C, the air flow is always set to "High", but this
is not a problem.
FRESH/RECIRC AIR CHANGEOVER SWITCH
Use FRESH/RECIRC air selector switch to switch the air
source between recirculation of the air inside the cab and in-
take of fresh air from the outside.
During automatic operation, the selection of inside air (RE-
CIRC) and outside air (FRESH) is performed automatically.
RECIRC
Outside air is shut off and only air inside the cab is circulated.
Use this setting to perform rapid cooling of the cab or when
outside air is dirty.
FRESH
Outside air is taken into the cab.
Use this setting to take in fresh air or to demist the window glass.
DISPLAY MONITOR
This monitor display indicates the status of temperature setting
(a), air flow (b), and vents (c).
3-200
OPERATION