Carrier Streamline Scroll 69NT20-531-300 - Page 8

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T309
TABLE OF CONTENTS (cont)
OPERATION 4-1.................................................................................
4.1 INSPECTION (Before Starting) 4-1...................................................
4.2 CONNECT POWER 4-1............................................................
4.2.1 Connection To 380/460 vac Power 4-1..............................................
4.3 ADJUST FRESH AIR MAKEUP VENT 4-1............................................
4.3.1 Upper Fresh Air Makeup Vent 4-1..................................................
4.4 CONNECT REMOTE MONITORING
RECEPTACLE 4-2......................................................................
4.5 STARTING AND STOPPING INSTRUCTIONS 4-2......................................
4.5.1 Starting the Unit 4-2.............................................................
4.5.2 Stopping the Unit 4-2............................................................
4.6 START--UP INSPECTION 4-2.......................................................
4.6.1 Physical Inspection 4-2..........................................................
4.6.2 Check Controller Function Codes 4-2...............................................
4.6.3 Complete Inspection 4-2.........................................................
4.7 PRE-TRIP DIAGNOSIS 4-2.........................................................
4.8 OBSERVE UNIT OPERATION 4-3...................................................
4.8.1 Probe Check 4-3................................................................
4.9 SEQUENCE OF OPERATION 4-4......................................................
4.9.1 Sequence Of operation -- Compressor Phase S equence 4-5................................
4.9.2 Sequence Of Operation -- P erishable Mode Cooling 4-5..................................
4.9.3 Sequence Of Operation --
Perishable Mode Heating 4-6...........................................................
4.9.4 Sequence Of operation -- Frozen Mode Cooling 4-6.....................................
4.9.5 Sequence Of Operation -- Defrost 4-6...............................................
TROUBLESHOOTING 5-1.........................................................................
5.1 UNIT WILL NOT START OR STARTS THEN STOPS 5-1................................
5.2 UNIT OPERATES LONG OR CONTINUOUSLY IN COOLING 5-1.........................
5.3 UNIT RUNS BUT HAS INSUFFICIENT COOLING 5-2..................................
5.4 UNIT WILL NOT HEAT OR HAS INSUFFICIENT HEATING 5-2..........................
5.5 UNIT WILL NOT TERMINATE HEATING 5-2.........................................
5.6 UNIT WILL NOT DEFROST PROPERLY 5-2..........................................
5.7 ABNORMAL PRESSURES (COOLING) 5-3...........................................
5.8 ABNORMAL NOISE OR VIBRATIONS 5-3............................................
5.9 CONTROLLER MALFUNCTION 5-4.................................................
5.10 NO EVAPORATOR AIR FLOW OR RESTRICTED AIR FLOW 5-4.........................
5.1 1 THERMOSTATIC EXPANSION VALVE MALFUNCTION 5-4.............................
5.12 AUTOTRANSFORMER MALFUNCTION 5-4..........................................
5.13 WATER-COOLED CONDENSER OR WATER PRESSURE SWITCH 5-4....................
5.14 COMPRESSOR OPERATING IN REVERSE 5-5........................................
5.15 ABNORMAL TEMPERATURES 5-5..................................................
5.16 ABNORMAL CURRENTS 5-5.......................................................