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CAT: 8612 November 2019
OPERATING INSTRUCTIONS
Partial Automatic
During AUTO mode the operator may override any setting and operate in
a partial automatic mode. This can be done via the dials and/or buttons
on the HVAC control. In the partial automatic mode, the AUTO button
indicator will cease to be illuminated. Instead, the indicator of the adjusted
setting will illuminate.
For example, if the driver adjusts the fan dial while in AUTO mode, the
fan dial indicator will illuminate and fan speed will adjust to the setting of
the dial. However, the temperature and air outlet settings will continue to
function automatically. Similarly, if the driver adjusts the air distribution
setting while in AUTO mode, the air distribution dial indicator will illuminate
and the distribution will adjust to the setting of the dial. The fan and
temperature settings will continue to function automatically.
Economy Function
An economy function is also available in partial automatic mode. In this
mode the system will operate in AUTO mode without the use of the A/C
compressor.
The operator may select economy by initiating AUTO mode and then
pressing the A/C button to disengage the compressor. The indicators
for A/C compressor and AUTO mode do not illuminate while operating in
economy mode.
MAX Defrost Mode
The heating and air conditioning system provides for one touch windscreen
defrosting. Certain driving conditions will cause fog or ice to form on
the windscreen. By pressing the MAX defrost button, the HVAC system
will automatically adjust the blower speed, air temperature and air outlet
distribution to maximise clearing of the windscreen. The system will remain
in this mode until the driver presses the button again or adjusts the dials.
MAX
Maximum Defrost Button
Note that the air temperature in MAX defrost mode will be set to the warmest
temperature setting. This setting helps to clear the windscreen of ice and
fog more quickly. Outside air mode and A/C compressor are also active
to maximise performance.
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