Operator`s manual

INSTRUMENTS AND CONTROLS
120
Recirculation
Press recirculation to circulate the air in the cab. Only a small amount
of air is taken directly from outside.
The light in the button comes on when the button is pressed for air
recirculation.
Temperature Control Settings ECC
Maximum Cold Setting
The temperature knob should be set to the far left. The fan speed knob
should be set to AUTO and the air distribution knob should be on
AUTO.
Maximum Heat Setting
The temperature knob should be set to the far right. The fan speed
knob should be set to AUTO and the air distribution knob should be on
AUTO.
Normal Setting
앫 When the temperature control is set to any temperature between
18°C and 27°C (64°F and 80°F), the ECC automatically adjusts
itself close to the selected temperature, similar to a thermostat.
Fan Speed
The fan speeds are 1 through 4. The fan will not operate when “0” is
selected, but air will flow when set to fresh air mode due to ram air
effect when the truck is moving.
앫 The ECC automatically circulates air at fan speed 4 when there is
a big difference between the selected temperature and the
temperature measured by the in-cab sensor. However, as the
temperature in the cab gets closer to the selected temperature,
the fan speed begins to slow down.
앫 If maximum cold or maximum heat are selected, the ECC
automatically circulates air at fan speed 4 when AUT is selected.
At any other selected fan speed the system adjusts and conforms
to the chosen speed.
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