Truck/Trailer Refrigeration Unit - Sunbelt Transport Refrigeration

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1.8.8 ALARM DISPLAYThe fault light (FL) is turned on only for alarms thatspecify it. The default display will be overridden if analarm is generated. When an alarm is generated, thedisplay will alternate the default display (setpoint/airtemperature) and the active alarm(s). Each item will bedisplayed for 3 to 10 seconds, and will continue to scrollthroughthelist.SeeSection1.8.6fortheprocedureonresetting alarms.Table1-6.AlarmDisplayCODE ENGLISH ALARM DESCRIPTIONAL0 ENG OIL ✔Low Oil PressureAL1 ENG HOT✔High CoolantTemperatureAL2 HI PRESS ✔High PressureAL3 STARTFAIL ✔Start FailureAL4 LOW BATT ✔Low Battery VoltageAL5 HI BATT ✔High Battery VoltageAL6 DEFRFAIL ✔Defrost OverrideAL7 ALT AUX ✔Alternator AuxiliaryAL8 STARTER ✔Starter MotorAL9 1RA SENSOR✔Return Air SensorCompartment 1AL10 2RA SENSOR✔Return Air SensorCompartment 2AL11 WT SENSORCoolant TemperatureSensorAL12 HIGH CDT✔High DischargeTemperatureAL13 CD SENSORDischarge TemperatureSensorAL14 SBY MOTOR ✔Standby Motor OverloadAL15 FUSE BAD ✔Fuse OpenAL16 3RA SENSOR✔Return Air SensorCompartment 3AL17 DISPLAY DisplayAL18 SERVICE 1 Maintenance Hour Meter 1AL19 SERVICE 2 Maintenance Hour Meter 2AL20 1RA OUT✔Compartment 1Out-of-rangeAL21 2RA OUT✔Compartment 2Out-of-rangeAL22 3RA OUT✔Compartment 3Out-of-rangeNO POWER No Power for Standby✔ =FAULTLIGHTONLow Oil Pressure AlarmThe low oil pressure alarm is displayed with thedescription ENG OIL or AL0. This alarm is generated ifthe control senses low oil pressure under the properconditions. The fault light (FL) is turned on. Engine willshut down.High Coolant Temperature AlarmThe high coolant temperature alarm is displayedwith the description ENG HOT or AL1. This alarm isgenerated if the control senses a high coolanttemperature over 110_C (230_F). The fault light (FL) isturned on and the engine will shut down.High Pressure AlarmThe high pressure alarm is displayed with thedescription HI PRESS or AL2. This alarm is generated ifthe high pressure switch opens. The fault light (FL) isturned on and the engine will shut down.Start Failure AlarmThe start failure alarm is displayed with thedescription STARTFAIL or AL3. This alarm is generatedif the engine fails to start. The fault light (FL) is turned on.If function MAN OP (manual start mode) is selectedthe start failure alarm will be generated if the engine failsto start in 5 minutes.Low Battery Voltage AlarmThe low battery voltage alarm is displayed with thedescription LOW BATT or AL4. This alarm is generatedif the battery voltage falls below 10 vdc. The fault light(FL) is turned on.High Battery Voltage AlarmThe high battery voltage alarm is displayed with thedescription HI BATT or AL5. This alarm is generated ifthe battery voltage is above 17 vdc. The fault light (FL) isturned on and the engine will shut down.Defrost Override AlarmThe defrost override alarm is displayed with thedescription DEFR FAIL or AL6. This alarm is generated ifthe unit is in a defrost override mode. The fault light (FL)is turned on.Alternator Auxiliary AlarmThe alternator auxiliary alarm is displayed with thedescription ALT AUX or AL7. This alarm is generated ifthe alternator auxiliary signal is not present with theengine running. (See Section 1.8.9). The fault light (FL)is turned on.Starter Motor AlarmThe starter motor alarm is displayed with thedescription STARTER or AL8. This alarm is generated ifthe starter motor input signal is not present with startersolenoid energized. The fault light (FL) is turned on.Compartment 1 Return Air Sensor AlarmThe Compartment 1 return air sensor alarm isdisplayed with the description 1RA SENSOR or AL9.This alarm is generated if the return air sensor is open orshorted. The fault light (FL) is turned on because there isno controlling probe.Compartment 2 Return Air Sensor AlarmThe Compartment 2 return air sensor alarm isdisplayed with the description 2RA SENSOR or AL10.This alarm is generated if the return air sensor is open orshorted. The fault light (FL) is turned on because there isno controlling probe.1-21 62-02884
Coolant Temperature Sensor AlarmThe coolant temperature sensor alarm is displayedwith the description WT SENSOR or AL11. This alarmisgenerated if the coolant temperature sensor is open orshorted.Compressor Discharge Temperature AlarmThe compressor discharge temperature alarm isdisplayed with the description HIGH CDT or AL12. Thisalarm is generated if the temperature is sensed above155_C (310_F) for three minutes. If the dischargetemperature exceeds 177_C (350_ F), the three minutetimer is overridden and the unit shut down immediately.The fault light (FL) is turned on.Compressor Discharge Temperature Sensor AlarmThe compressor discharge temperature sensor alarmis displayed with the description CD SENSOR or AL13.This alarm is generated if the sensor is open or shorted.Standby Motor Overload AlarmThe standby motor overload alarm is displayed withthe description SBY MOTOR or AL14. This alarm isgenerated when the MOL input is sensed open with theRun Relay energized in electric mode (Diesel/ElectricRelay energized).Fuse AlarmThe fuse alarm is displayed with the descriptionFUSE BAD or AL15. This alarm is generated when theFUSE input is sensed low. The fault light (FL) is turnedon.Compartment 3 Return Air Sensor AlarmThe Compartment 3 return air sensor alarm isdisplayed with the description 3RA SENSOR or AL16.This alarm is generated if the return air sensor is open orshorted. The fault light (FL) is turned on because there isno controlling probe.Display AlarmWhen no communications exist between the mainboard and the display board for eight seconds, the displayalarm description is DISPLAY or AL17Maintenance Hour Meter 1 AlarmThe Maintenance Hour Meter Alarm 1 is displayedwith the description SERVICE 1 or AL18. This alarm isgenerated when the designated hour meter is greaterthan maintenance hour meter 1.Maintenance Hour Meter 2 AlarmThe Maintenance Hour Meter Alarm 2 is displayedwith the description SERVICE 2 or AL19. This alarm isgenerated when the designated hour meter is greaterthan maintenance hour meter 2.Compartment 1 Out-of-Range AlarmThe out-of-range alarm is displayed with thedescription 1RA OUT or AL20. This alarm is generatedwhen compartment 1 is out-of-range (refer to section1.8.6). The fault light (FL) is turned on.Compartment 2 Out-of-range AlarmThe out-of-range alarm is displayed with thedescription 2RA OUT or AL21. This alarm is generatedwhen Compartment 2 is out-of-range (refer to section1.8.6). The fault light (FL) is turned on.Compartment 3 Out-of-range AlarmThe out-of-range alarm is displayed with thedescription 3RA OUT or AL22. This alarm is generatedwhen Compartment 3 is out-of-range (refer to section1.8.6). The fault light (FL) is turned on.No Power for Standby Alarm (<strong>Truck</strong> <strong>Unit</strong>)“NO POWER” will be displayed if truck unit isswitched to standby and power plug is not plugged in.62-028841-22
Page 5 and 6: TABLE OF CONTENTS (CONT’D)Section
Page 7 and 8: LIST OF ILLUSTRATIONSFigurePage4-18
Page 9 and 10: 61 2 3 4 57 811 1091. Muffler2. Eng
Page 11 and 12: 213 4 58 106793 41. Run-Stop Switch
Page 13 and 14: 113214345678910151617111812191. Mai
Page 15 and 16: 1231. Fault Light2. Standby Power L
Page 17 and 18: e. EvaporatorsThe compartments of t
Page 19 and 20: 1.2 ENGINE DATAEngine Model CT4-134
Page 21 and 22: 1.7 SAFETY DEVICESSystem components
Page 23 and 24: 2 3 4 5 6 7 8 9 101FUNCTIONO ISETPO
Page 25 and 26: 1.8.6 FUNCTIONAL PARAMETERSThe func
Page 27: Engine HoursThe number of diesel en
Page 31 and 32: g. Minimum On-TimeThe engine is all
Page 33 and 34: 1.12.3 Hot Gas Bypass Unloadera. Ma
Page 35 and 36: 1.14 REFRIGERANT CIRCUIT DURINGCOOL
Page 37 and 38: 1614513LSV31715HGV31614513LSV21715H
Page 39 and 40: 1614513LSV3 (NC)1715HGV3 (NC)161451
Page 41 and 42: 2.2.2 MANUAL STARTINGa. Starting In
Page 43 and 44: 2.6 CONTROL CIRCUIT OPERATION --STA
Page 45 and 46: FALLING TEMPERATURERISING TEMPERATU
Page 47 and 48: 62-028842-8Table 2-3. 3 Compartment
Page 49 and 50: INDICATION/TROUBLEPOSSIBLE CAUSESRE
Page 55 and 56: 4.2 MAINTENANCE SCHEDULE (TRAILER)U
Page 57 and 58: 1105432shaft). Energize solenoid fo
Page 59 and 60: . Electrical Pump (See Figure 4-4)T
Page 61 and 62: a. Alternator V-Belts (Trailer Unit
Page 63 and 64: 4.7 PUMPING THE UNIT DOWN ORREMOVIN
Page 65 and 66: 1. Suction Line2. Equalizer Line3.
Page 67 and 68: k. Slide compressor enough to clear
Page 69 and 70: . Solenoid Coil ReplacementNOTEThe
Page 71 and 72: 4.18.2 Solenoid Valve -- Sporlana.
Page 73 and 74: 4.22 CONFIGURATION OF MICROPROCESSO
Page 75 and 76: 4.25 5KW GENERATOR -- TRAILERThe 5K
Page 77 and 78: 4.27 SERVICING PHASE SEQUENCEWARNIN
Page 79 and 80:
4.30 THERMOSTATIC EXPANSION VALVETh
Page 81 and 82:
Table 4-7. R-404A Pressure -- Tempe
Page 83 and 84:
62-028845-2Figure 5-1. Truck Units
Page 85 and 86:
5-4Figure 5-2. Truck Units --- Elec
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Truck/Trailer Refrigeration Unit - Sunbelt Transport Refrigeration

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