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(5) FRESH AIR/AIR RECIRCULATION SWITCH
Pilot lamp
(6) FAN SPEED KNOB
(7) TEMPERATURE CONTROL KNOB
It is possible to change the air-inlet method.
a.
Fresh air (pilot lamp OFF)
Inhaling air from the outside.
Check the fresh air filter periodically to keep a good ef-
ficiency.
b.
Air recirculation (pilot lamp ON)
This recycles the heated or cooled air to increase the energy ef-
ficiency.
Change air occasionally when using recirculation for a
long time.
Check the recirculation filter periodically to keep a
good efficiency.
This knob controls the fan speed manually.
There are 9 steps to control the fan speed.
This knob controls the position of the water valve when the air con-
ditioner switch is ON or OFF.
When the AUTO switch is ON, the temperature control knob deter-
mines the desired cab temperature. The temperature range is 18°C
(64°F) in the full cold position and 26°C (79°F) in the full hot posi-
tion.
3-65
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