DETROIT Optimized Idle - Thermostat Mode (with the Optional Optimized Idle Thermostat)

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THERMOSTAT MODE (WITH THE OPTIONAL

OPTIMIZED IDLE THERMOSTAT)

This mode allows the operator to set the desired interior temperature and maintain

Engine Mode parameters.

For additional thermostat features, Refer to section "THERMOSTAT

OPERATION". The Optimized Idle thermostat is used to determine when the

engine needs to restart to maintain the interior temperature. For Thermostat Mode

to function, all of the conditions listed in the beginning of Section 3, Refer to

section "OPERATING OPTIMIZED IDLE" must be met. Use the following

procedure to start Thermostat Mode:

1. Start the engine and let it remain idling.

a. Close and secure the hood cab, or engine compartment door(s).

b. Put the transmission in neutral and in high-range (if equipped).

c. Apply the parking brake.

2. If you have cruise control, turn the cruise master switch to the "ON" position.

If the switch is on, turn it off and on after the vehicle is idling.

3. The Optimized Idle active light flashes.

4. Set the heater or air conditioning to maximum. Set the heater or A/C fan

controls on the dash and sleeper area to high. This will minimize engine run

time.

5. Turn the thermostat on by pressing any button on the display.

6. Select cool or heat by pressing the buttons. This must match the setting on

the heating and A/C controls set in step 4.

7. Set the desired interior temperature.

8. Optimized Idle will now stop and restart the engine, only when required, to

keep the interior at the desired temperature. When the interior requires

heating or cooling, the (heat) or (cool) icon will flash.

NOTE: If the engine does not start after the second Optimized Idle attempt,

or if the vehicle moves while Optimized Idle is enabled, the Amber Warning

Lamp (AWL) will turn on to indicate that Optimized Idle has been disabled

(active light will turn off). The ignition must be turned to "OFF", the engine

restarted, and the conditions in the beginning of Section 3, Refer to section

"OPERATING OPTIMIZED IDLE"met in order to enable Optimized Idle.

9. When the engine starts, it will ramp up to increase to the parameterized

target RPM (default = 1000, 900 if equipped with Clean Idle option) and the

fan and accessories will turn on approximately 30 seconds after the engine

starts. To turn off the thermostat and exit the Thermostat Mode, press and

hold the mode button for 3 seconds. Optimized Idle is now in Engine Mode.

THERMOSTAT MODE (WITH THE OPTIONAL OPTIMIZED IDLE THERMOSTAT)

8 All information subject to change without notice.