Vehicles equipped with Optimized Idle have a label
on the dash, and a telltale (OPT IDLE) in the ICU.
See
Fig. 2.34
for the dash label detail. If equipped, a
thermostat is located above the sleeper bunk. See
Fig. 2.35
.
Optimized Idle operates in two modes:
•
Engine mode: Keeps the battery charged and
engine oil temperature between 60 and 104°F
(16 to 40°C).
•
Thermostat mode (activated when the optional
thermostat is turned on): Keeps the cab and
sleeper at a constant preset temperature, in
addition to all functions available in engine
mode.
Thermostat mode controls the set point, which is the
desired temperature of the cab and sleeper, and the
comfort zone, which is the allowed temperature de-
viation from the set point before the engine starts.
The thermostat display defaults to show the tempera-
ture of the sleeper, but changes accordingly as the
buttons are pressed.
The button functions are as follows:
•
Up arrow: Increases the set point and comfort
zone (allowed temperature variation).
•
Down arrow: Decreases the set point and com-
fort zone.
•
Cool/Heat: Sets either cooling or heating op-
eration.
•
MODE: Scrolls through the various functions. It
can also be used to set desired temperature
values.
If a vehicle has Optimized Idle, the following func-
tions will not operate with the key in accessory
mode. Optimized Idle may also turn these functions
off to reduce stress on the batteries.
•
Cab climate control fan
•
Sleeper climate control fan
•
Mirror heat
•
Fuel/water separator heat
•
Seat heat
•
Advertising light
•
Auxiliary circulation fan (windshield)
•
Air dryer
1.
To activate Optimized Idle (engine mode):
1.1
Set the parking brake.
1.2
If it is open, close and secure the hood.
1.3
Start the engine and let it idle.
1.4
Put the transmission in neutral.
1.5
Turn on the cruise control.
The OPT IDLE lamp will blink, indicating
that Optimized Idle is active. The system
is now in engine mode and after an initial
11/13/96
f080062
TO AVOID
UNINTENTIONAL
VEHICLE MOVEMENT,
DO NOT MOVE SHIFT
LEVER OR RANGE
SELECTOR WHEN
OPTIMIZED IDLE IS ON
OPTIMIZED IDLE
TM
TO USE:
− IDLE ENGINE
− CLOSE HOOD
− ENGAGE PARKING BRAKES
− PUT TRANSMISSION IN
NEUTRAL AND
HI RANGE (IF EQUIPPED)
− THEN, MOVE CRUISE SWITCH
FROM OFF TO ON
− IF DESIRED, TURN CAB
THERMOSTAT ON (IF EQUIPPED)
Fig. 2.34, Optimized Idle Dash Label
M O D E
° F
° C
11/08/96
1
2
3
4
5
6
7
8
9
10
f601250
1.
Down Arrow Button
2.
Up Arrow Button
3.
Upper/Lower
Temperature Icon
4.
Temperature Display
5.
Degrees Fahrenheit
Indicator
6.
MODE Button
7.
Cooling Icon
8.
Cool/Heat Selection
Button
9.
Heating Icon
10. Degrees Celsius
Indicator
Fig. 2.35, Optimized Idle Thermostat
Instruments and Controls Identification
2.29