.
OPERATION
EXPLANATION OF COMPONENTS
HEATER, HANDLING
METHOD OF OPERATION
Switch
Condition of use
Fan switch
Humidity
control switch
RECIRC/FRES
H selector
switch
Rapid heating HI All red RECIRC
Ventilation or
pressurization
HI - LO All blue FRESH
TO HEAT QUICKLY
If the switch is operated as follows, the cab can be heated quickly.
Set fan switch (1) to H1, humidity control switch (2) to All red,
and RECIRC/FRESH selector switch (3) to RECIRC.
NOTICE
If the heating is run continuously for a long time using only recirculated
internal air, the air in the cab will become dirty. After the cab warms up,
always turn RECIRC/FRESH selector switch (3) to the FRESH position. In
this position, the inside of the cab is pressurized, and this prevents the
entry of dust.
NORNAL USE
Set each switch to the desired position.
CLEANING AIR FILTER
If the RECIRC or FRESH air filters are clogged, the heating capacity will drop.
Cleaner the air filter once a week with compressed air.
For details of the method of cleaning, see "WHEN REQUIRED (PAGE 4-20)".
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