Optimized Idle User Manual 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 ( icon may be flashing to indicate that the cab/sleeper requires heating or cooling. or ) selected. The or for three (3) seconds. Optimized idle is now in Engine Mode. To turn off the thermostat and exit Thermostat Mode, press and hold 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 All information subject to change without notice. 13 DDC-SVC-MAN-0019 Copyright © 2016 DETROIT DIESEL CORPORATION