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3.5
PRETRIP
Pretrip is a set of tests run by the control system to check unit operation. It is recommended that a Pretrip is run
prior to loading the refrigerated compartment. It will indicate a failure if one is detected.
TIP
A Pretrip can be started at any box temperature. If Pretrip is started while the unit is in a Start-Stop off
cycle the unit will start during the course of the test. If the unit is running when Pretrip is started, it will
shutdown for the first three tests.
TIP
If “CAN NOT START PRETRIP” is displayed in the MessageCenter, check to see if the unit is in PC
Mode (Refer to
) or Defrost mode, or check the alarm list (
down alarms.
NOTE
Pretrip will run until completed, unless an alarm occurs that causes Pretrip to be aborted. Only alarms
that will result in other erroneous alarms or will affect future Pretrip tests will abort Pretrip.
Once Pretrip is started: If the unit is running, the control system will shut the unit down for the initial tests, then start
it again as it proceeds through the tests.
NOTE
Before completing Pretrip, the control system looks at the status of alarms and if certain alarms are
active (for example: Low Fuel Warning, Check Engine Oil Level, Check Coolant Temperature), Pretrip
will display “FAILED”, indicating that the unit is not ready to be sent out for a load, but that the alarm
list should be checked and all present alarm situations corrected.
1. With the system powered up (START/RUN-OFF switch in the START/RUN position), press the MENU key
until PRETRIP is displayed.
2. Press the PRETRIP soft key to display the Pretrip Menu screen.
3. The Pretrip Menu screen will display with a 15 second timeout. Press the
▲
or
▼
key to scroll through the
available selections. With the desired selection highlighted, press the “=” Key.
4. If “Start Pretrip” is selected, Pretrip will begin and the Pretrip Status screen will be displayed. Immediately fol-
lowing Pretrip OR if “View Results of Last Pretrip” is selected the Pretrip Summary Screen will be displayed.
NOTE
At any time during Pretrip, the UNIT DATA soft key may be pressed to allow the user to view the Unit
Data screen (refer to
). To return to Pretrip from the Unit Data screen, press the BACK soft
key.
NOTE
During Pretrip the ALARM light will illuminate to indicate there is no temperature control.
CONTINUOUS
START/STOP
MENU
ALARM
COOL
DIESEL
START/STOP
INTELLISET
Viewing Menu Soft Key
Selections
Press Menu Key to Scroll
PRETRIP HOUR
METERS
UNIT
DATA
DEFROST
1
2
PRETRIP MENU
BACK
EXIT
Start Pretrip
View Results of Last Pretrip
3
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