Thermo King SLXi Spectrum, Руководство по обслуживанию

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Controller Operation 7-18
Displaying and Clearing Alarm Codes
When the controller senses an alarm condition, an alarm symbol appears on the display. A two or three digit alarm code is used
to identify the type of alarm. There are three types of alarms:
• Stored Alarms: This alarm indicates that a condition should be investigated but does not currently affect unit operation. The
ALARM symbol appears for 30 seconds when the ON key is pressed and then disappear.
• Check Alarms: This alarm indicates that a condition requires corrective action before an abnormal condition becomes severe.
The ALARM symbol appears and remains ON.
• Shutdown Alarms: This alarm indicates that a condition may damage the unit. The controller stops the unit, the ALARM
symbol appears and the entire display flashes ON and OFF.
1. To display the alarm code, press the CODE key to view the alarm. Press the CODE key again to view any additional alarms
that may exist. Code 00 appears when no alarm codes are present.
2. Write down each alarm code that appears. Then correct the cause of each alarm.
NOTE: Turn the Unit On/Off switch OFF to stop unit before inspecting or servicing the unit. Turn the unit Microprocessor
On/Off switch to OFF to service the microprocessor module or disconnect the unit battery. Finally, disconnect the battery to
completely remove 12 Vdc power to the unit for service of the microprocessor relay board and unit controls.
3. To clear the alarms after all problems have been corrected, turn the Unit On/Off switch ON. Then press the CODE key to
display the alarm again.
4. While the alarm screen is showing, press the CLEAR key. The alarm will clear and the standard display will appear on the
screen. If more than one alarm code is present, repeatedly press the CLEAR key to clear each alarm code individually.
NOTE: Alarms may continue to appear as the unit operates if the alarm condition is not corrected.
Unit Pre-trip Test
The Unit Pre-trip Test automatically performs a functional check of unit operation. The test must be performed with the unit in
Diesel mode and no alarms present. If necessary, turn electric power supply OFF and disconnect power cord. Clear and correct
all alarm conditions before beginning. With the unit set for Diesel operation:
NOTE: The controller automatically starts the unit 10 seconds after the Unit On/Off switch is turned ON.
1. Turn the unit On/Off switch to ON.
2. Clear all alarms using the CODE and CLEAR keys.
3. Before the engine starts, press the PRETRIP key to perform a Full CYCLE-SENTRY Pre-trip Test. The Pre-trip prompt (PrE
TRIP) screen will appear.
4. With PrE TRIP in the display, press the ENTER key to start the test.
• “LOAD” will appear in the display for a few seconds.
• The controller then performs a series of unit tests.
• If the ENTER key is not pressed, the operating mode will NOT change and the display will return to the Standard Display
in about 10 seconds.
5. When the Pre-trip Test is complete, the controller displays PASS, CHEC or FAIL. Press any key to clear test results display
from controller.
NOTE: If CHEC or FAIL occurs, view alarm codes and correct all conditions. Then repeat the Full Pre-trip Test. The unit
should PASS before being released for service.
Pre-trip Tests
The controller performs the following checks. Operator attention is not required after the programmable settings have been
displayed.
• Control Component Amps Test: Each electrical control component energizes for a current draw measurement.
• Preheat and Start Test: Engine preheats and starts.
• ETV Check: The electronic throttling valve is checked for correct operation.
• Display Test: All display segments light at the same time.
• Show Programmable Settings: Controller displays all programmable settings for operator verification.
• RPM Check: Check engine rpm in high and low speed.
• Low Speed Cooling Check: Checks unit cooling performance in low speed.
• Heating Check: Checks unit heating performance.
• Defrost Damper Check: Check damper door operation.
• Low Speed Cooling Check: Second cooling test ensures that unit can cycle between Heat and Cool modes.