When the ignition switch is turned to the "ON" position, the cab thermostat is ready
for use. Pressing
any button
will turn the thermostat on and enable the thermostat
mode. The display will show the cab temperature (in °F or °C) and the last heating
or cooling mode ( or
) selected. The or
icon may be flashing to
indicate that the cab/sleeper requires heating or cooling.
To turn off the thermostat and exit Thermostat Mode, press and hold
for three
(3) seconds. Optimized idle is now in Engine Mode.
SETTING THE DESIRED SET POINT
This section describes how to set the desired interior temperature. There are
different temperature set points for the heating mode and cooling mode.
1. Press up or down button, the display will flash the current set point and
show:
a. The upper value icon, with the arrow flashing, for the heating set point.
b. The lower value icon, with the arrow flashing, for the cooling set
point.
2. Press the up or down button to increase or decrease the set point. Holding the
up or down button causes the digits to increase or decrease rapidly.
3. Release the up or down button and the interior temperature display will
return in three seconds and the set point will be stored in memory.
SELECTING THE HEATING OR COOLING MODE
With the Main Display showing the interior temperature, press the Cool/Heat
selection button until the desired icon is showing. The Cooling Mode indicator icon
indicates the cooling mode, the Heating Mode indicator icon indicates the heating
mode.
This setting must match the setting of the vehicle heating/cooling system.
NOTE:
Improper selection of the heating mode or cooling mode could
cause Optimized Idle to enter the extended idle condition. At that point, the
engine will run for 45 minutes, then stop and restart at 15 minute intervals
until the thermostat set point is reached or until the thermostat is turned off
or the proper heat or cool mode is selected.
SELECTING THE COMFORT ZONE
The Comfort Zone is the number of degrees (Celsius or Fahrenheit) from the
Optimized Idle thermostat set point before the interior temperature is low or high
enough to indicate that the engine needs to heat or cool the vehicle. The larger the
Optimized Idle User Manual
All information subject to change without notice.
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DDC-SVC-MAN-0019
Copyright © 2016 DETROIT DIESEL CORPORATION
