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4.5.5  Null Mode ........................................................................................................................................... 4-5 
4.5.6  Defrost Mode ..................................................................................................................................... 4-5 
4.6  USER SELECTED OVERRIDE OPERATION .......................................................................................... 4-6 
4.6.1  Supply Air Limit Control ..................................................................................................................... 4-6 
4.6.2  Temperature Range Lock 1 & 2 ......................................................................................................... 4-7 
4.6.3  ProductShield ..................................................................................................................................... 4-9 
4.6.4  ProductShield Temperature Ranges ............................................................................................... 4-10 
4.7  PREPROGRAMMED SOFTWARE OVERRIDES ................................................................................... 4-10 
4.7.1  High Discharge Temperature ........................................................................................................... 4-10 
4.7.2  RAT & SAT Alarms Both Active ....................................................................................................... 4-10 
4.7.3  Engine Speed Overrides .................................................................................................................. 4-10 
4.7.4  Operating Mode Overrides .............................................................................................................. 4-11 
SECTION 5 - TECHNICIAN INTERFACE .............................................................................................................. 5-1 
5.1  TECHNICIAN CONFIGURATION/ TEST MODES (REMOVE JUMPER MODE) ..................................... 5-1 
5.1.1  Configuration Mode............................................................................................................................ 5-1 
5.1.2  Component Test Mode ...................................................................................................................... 5-1 
5.1.3  Service Mode ..................................................................................................................................... 5-3 
5.2  DOWNLOADING DATA WITH THE PC CARD ......................................................................................... 5-4 
5.3  INSTALLING NEW SOFTWARE USING A PC Card ................................................................................ 5-5 
5.3.1  Procedure .......................................................................................................................................... 5-5 
5.3.2  Troubleshooting Loading Problems ................................................................................................... 5-5 
5.4  LogiCOLD MICROPROCESSOR REPLACEMENT & CONFIGURATION SETUP .................................. 5-6 
5.4.1  Microprocessor Replacement ............................................................................................................ 5-6 
5.4.2  Microprocessor Setup ........................................................................................................................ 5-6 
5.4.3  Configurations Via Keypad ................................................................................................................ 5-7 
5.4.4  Functional Parameters Via Keypad ................................................................................................... 5-7 
5.4.5  Microprocessor Final Checkout ......................................................................................................... 5-8 
SECTION 6 - MESSAGECENTER ......................................................................................................................... 6-1 
6.1  MessageCenter MESSAGES .................................................................................................................... 6-1 
SECTION 7 - ALARM TROUBLESHOOTING ....................................................................................................... 7-1 
7.1  INTRODUCTION ....................................................................................................................................... 7-1 
7.2  NOTES ...................................................................................................................................................... 7-1 
7.3  DRIVER / OPERATOR ALARMS .............................................................................................................. 7-3 
1  LOW FUEL LEVEL WARNING ....................................................................................................... 7-3 
7.4  SHUTDOWN ALARMS .............................................................................................................................. 7-4 
11  LOW ENGINE OIL PRESSURE ..................................................................................................... 7-4 
12  HIGH COOLANT TEMPERATURE ................................................................................................ 7-5 
13  HIGH DISCHARGE PRESSURE .................................................................................................... 7-7 
14  HIGH A/C AMPS ............................................................................................................................. 7-8 
15  BATTERY VOLTAGE TOO HIGH .................................................................................................. 7-9 
16  BATTERY VOLTAGE TOO LOW ................................................................................................. 7-10 
17  HIGH COMP DISCHARGE TEMP ................................................................................................ 7-11 
18  LOW REFRIGERANT PRESSURE .............................................................................................. 7-12 
19  LOW FUEL SHUTDOWN ............................................................................................................. 7-14 
20  MAXIMUM COMPRESSOR ALARMS .......................................................................................... 7-15 
21  TECHNICIAN RESET REQUIRED ............................................................................................... 7-15 
22  LOW SUCTION SUPERHEAT ..................................................................................................... 7-16 
23  A/C CURRENT OVER LIMIT ........................................................................................................ 7-17 
24  COMPRESSION RATIO EXCEEDED .......................................................................................... 7-19 
27  HIGH SUCTION PRESSURE ....................................................................................................... 7-20 
28  CHECK REFRIGERATION SYSTEM ........................................................................................... 7-21 
7.5  START-UP / ENGINE ALARMS .............................................................................................................. 7-22