Carrier Streamline Scroll 69NT20-531-300 Service Manual

Model 69NT20-531-300Streamline ScrollT-309 Rev ACarrierTransicoldContainerRefrigerationOperation&Service

vT3096.21.1 Handling Modules 6-14...6.21.2 Controller Trouble-Shooting 6-15...

viT309LIST OF ILLUSTRATIONSFIGURE NUMBER PageFigure 2-1 Refrigeration Unit -- Front Section 2-1...Figure 2

viiT309LIST OF ILLUSTRATIONSFIGURE NUMBER PageFigure 6-22 Return Sensor Positioning 6-18...Figure 6-

1-1 T -309SECTION 1INTRODUCTION1.1 INTRODUCTIONThe C arrier Transicold model 69NT20--531-300 unitsare of lightweight aluminum frame construction,desig

1-2T -3091.3.11 460 Volt CableVarious power cable and plug designs are availableforthe main 460 volt supply. The plug options tailor t hecables to eac

T -3092-1SECTION 2DESCRIPTION2.1 GENERAL DESCRIPTION2.1.1 Refrigeration Unit -- Front SectionThe unit is designed so that the majority of thecomponent

2-2T-3092.1.3 Evaporator SectionThe evaporatorsection (Figure 2-2)contains thereturnrecorder sensor, return t emperature sensor, evaporatorexpansion v

T -3092-32.1.4 Compressor SectionThe compressor section includes the compressor (withhigh pressure switch) and the oil separator.This section also con

2-4T-3092.1.5 Air Cooled Condenser SectionThe air cooled condenser section (Figure 2-4) consistsof the condenser fan, condenser coil, receiver, sightg

T -3092-52.1.6 Control Box SectionThe control box (Figure 2-5) includes the manualoperationswitches;circuitbreaker(CB-1);compressor,fan and heater con

OPERATION AND SERVICE MANUALCONTAINER REFRIGERATION UNITMODEL69NT20 -531-300Streamline ScrollCarrier Transicold. A member of the United Technologies C

2-6T-3092.2 REFRIGERATION SYSTEM DATAModel RSH105Weight (Dry) 46.5 kg (103 lb)aCompressor/MotorApproved Oil Mobil ST32a.Compressor/MotorAssemblyOil Ch

T -3092-72.3 ELECTRICAL DATACB-1 Trips at 29 ampsa. Circuit BreakerCB-2 (50 amp) Trips at 62.5 ampsa.CircuitBreakerCB-2 (70 amp) Trips at 87.5 ampsb.

2-8T-309PARAGRAPH 2.3 -- ContinuedOrange wire PowerRed wire OutputBrown wire GroundInput voltage 5vdcgHumiditySensorOutput voltage 0to3.3vdcg.Humidity

T -3092-92.5 REFRIGERATION CIRCUIT2.5.1 Standard OperationStarting at the compressor, (see Figure 2-6, upperschematic) the suction gas is compressed t

2-10T -309EVAPORATORCONDENSERTXVTXV BULBSMVCOMPRESSORCOMPRESSOROIL SEPARATORORVFILTERDRIERRUPTURE DISCWA TER COOLEDCONDENSEROIL RETURNSERVICE VALVEORV

T -3092-11LIQUID ECONOMIZER PRESSUREECONOMIZERECONOMIZERSERVICECONNECTIONESVECONOMIZERTXVLIQUID LINESERVICE CONNECTIONOIL SEPARATORRECEIVEREVAPORATORC

3-1T -309SECTION 3MICROPROCESSOR3.1 TEMPERATURE CONTROL MICROPRO-CESSOR SYSTEMThe temperature control Micro-Link 2i microprocessorsystem (see Figure 3

3-2T-3093.1.1 Key PadThekeypad(Figure 3- 2)is mountedon theright-handside of the control box. The key pad consists of elevenpushbuttonswitchesthatacta

3-3T -30981233 3 3 345 671333 3 391. Mounting Screw2. Micro-Link 2i Control/DataCORDER Module3. Connectors4. Test Points5. Fuses6. Control Circuit Pow

3-4T-3093.2.2 Operational Software (Function codes)The Operational Software is t he actual operationprogramming of the controller which activates orde

T -309Safety-1SAFETY SUMMARYGENERAL SAFETY NOTICESThe following general safety notices supplement the specific warnings and cautions appearing elsewhe

3-5T -309mode and the heaters will be energized . The unit willtransition back to the perishable idle mode when thetemperature rises to 0.2_C (0.4_F)

3-6T-3091. Bulb mode code Cd35 is set to “Nor.”2. Dehumidification code Cd33 is set to “Off.”3. The user changes the set point to onethat is in the fr

3-7T -309e. “END” is displayed to indicate the end of the alarmlist if any alarms are active.f. “CLEAr” is displayed if all alarms are inactive. Theal

3-8T-309Table 3-2 DataCORDER Configuration VariablesCONFIGURATION NO.TITLE DEFAULT OPTIONdCF01 (Future Use) -- -- -- --dCF02 Sensor Configuration 2 2,

3-9T -309Raw Data Report for ABC1234567May 31, 2001 to Jun 04, 2001SystemConfiguration atthe Time of Interrogation:Interrogated On Sept05, 2001Extract

3-10T -3093.6.4Logging Interval (dCF03)The user may select four different time intervalsbetween data recordings. Data is logged at exactintervals in a

3-11T -309DataReaderFigure 3- 6 Data Readerb. DataViewThe DataView software for a personal computer issupplied on a floppy disk. This software allowsi

3-12T -309Sensor 1Place in pulp of the product located nextto the return air intake.Sensor 2Place in pulp of the product five feetfrom the end of the

3-13T -309Table 3-4 Controller Configuration VariablesNOTES1. Configuration numbers not listed are not used in this application. Theseitems may appear

3-14T -309Table 3-5 Controller Function Codes (Sheet 1 of 3)CodeNo.TITLE DESCRIPTIONNote: If the function is not applicable, the display will read “--

Safety-2T -309WARNINGMakesurethattheunitcircuit breaker(s)(CB-1 &CB-2)andthe START-STOP switch (ST)ar einthe“O” (OFF) position before connecting t

3-15T -309Table 3-5 Controller Function Codes (Sheet 2 of 3)ffCd22 Compressor State The status of the compressor is displayed (Off, On).Cd23 Evaporato

3-16T -309Table 3-5 Controller Function Codes (Sheet 3 of 3)Cd31Stagger Start Of fsetTime (Seconds)The stagger start offset time is the amount of time

3-17T -309Table 3-6 Controller Alarm Indications (Sheet 1 of 4)CodeNo.TITLE DESCRIPTIONAL13 Expansion ModuleAlarm 13 is triggered if the control modul

3-18T -309Table 3-6 Controller Alarm Indications (Sheet 2 of 4)AL25Condenser Fan Mo-tor SafetyAlarm 25 is triggered by the opening of the condenser mo

3-19T -309Table 3-6 Controller Alarm Indications (Sheet 3 of 4)AL56Primary ReturnTemperature SensorFailure (RTS)Alarm 56 is activated by an invalid pr

3-20T -309Table 3-6 Controller Alarm Indications (Sheet 4 of 4)NOTEIf the C ontroller is configured for four probes without a DataCORDER, the DataCORD

3-21T -309Table 3-7 Controller Pre-Trip Test Codes (Sheet 1 of 4)CodeNo.TITLE DESCRIPTIONNOTE“Auto” or “Auto1” menu includes the: P0, P 1, P2, P 3, P

3-22T -309Table 3-7 Controller Pre-Trip Test Codes (Sheet 2 of 4)P5-1 Supply Probe TestRequirements: For units equipped with secondary supply probe on

3-23T -309Table 3-7 Temperature Controller Pre-Trip Test Codes (Sheet 3 of 4)NOTEP7-0 through P10 are included with the “Auto2” only.P7-0High Pressure

3-24T -309Table 3-7 Controller Pre-Trip Test Codes (Sheet 4 of 4)P10-0Frozen ModeHeat TestSetup: If the container temperature is below 7.2_C(45_F), th

T -309Safety-3CAUTIONWhen Pre-Trip key is pressed, economy, dehumidification and bulb modewill be deactivated. At thecompletion of Pre-Trip activity,

3-25T -309Table 3-8 DataCORDER Function Code AssignmentsNOTEInapplicable Functions Display “-- -- -- -- --”To Access: Press ALT. MODE keyCodeNo.TITLE

3-26T -309Table 3-9 DataCORDER Pre-Trip Result RecordsTestNo.TITLE DATA1-0 Heater On Pass/Fail/Skip Result, Change in current for Phase A, B and C1-1

3-27T -309Table 3-10 DataCORDER Alarm IndicationsTo Access: Press ALT. MODE keyCode No. TITLE DESCRIPTIONdAL70Recorder SupplyTemperature Out ofRangeTh

T -3094-1SECTION 4OPERATION4.1 INSPECTION (Before Starting)WARNINGBeware of unannounced starting of theevaporator and condenser fans. The u nitmay cyc

T -309 4-24.4 CONNECT REMOTE MONITORINGRECEPTACLEIf remote monitoring is required, connect remotemonitorplugatunitreceptacle.(Seeitem9,Figure 2-5.)Whe

T -3094-33. Pre-trip may also be initiated viacommunications. Theoperationisthesameasforthekeypadinitiationdescribedbelowexcept that should a test fai

T -309 4-41. At every power up.2. At the end of every defrost.3. After every diagnostic check that does not fall out-side of the limits as outlined ab

T -3094-5SET POINTFALLINGTEMPERATURERISINGTEMPERATURE--0.20_C+.20_CCOOLINGECONOMIZEDAIR CIRCULATIONSTART UNLOADED,TRANSITION TOECONOMIZEDOPERATIONNOTE

T -309 4-6noid valve changing from economized operation tounloaded operation. (As shown i n Figure 4-5)d. Thecontrollermonitors thesupply air. Oncet h

T -3094-7Defrost may be initiated by any one of the followingmethods:1. The manual defrost switch (MDS) is closed by theuser.2. The user sends a defro

iT309TABLE OF CONTENTSPARAGRAPH NUMBER PageGENERAL SAFETY NOTICES Safety-1...FIRST AID Safety-1...

5-1T -309SECTION 5TROUBLESHOOTINGCONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.1 UNIT WILL NOT START OR STARTS THEN STOPSExternal power source OFF

5-2T-309CONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.3 UNIT RUNS BUT HAS INSUFFICIENT COOLINGAbnormal pressures 5.7Abnormal temperatures 5.15Abnor

5-3T -309CONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.6 UNIT WILL NOT DEFROST PROPERLY -- ContinuedWill not initiate defrostManual defrost switch

5-4T-309CONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.9 CONTROLLER MALFUNCTIONDefective Sensor 6.22Defective wiring CheckWill not controlFuse (F1,

5-5T -309CONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.14 COMPRESSOR OPERATING IN REVERSECAUTIONAllowingthescroll compressortooperatein reverseform

6-1T -309SECTION 6SERVICENOTEToavoiddamagetotheearth’sozonelayer,usearefrigerantrecoverysystemwheneverremovingrefrigerant.When working with refrigeran

6-2T-309system can be charged. Oil can also be added to thesystem.A R-134a manifold gauge/hose set with self-sealinghoses (see Figure 6-4) is required

6-3T -309gauge. If a vacuum is indicated, emit refrigerant bycrackingtheliquidlinevalvemomentarilytobuildupa slight positive pressure.g. Whenopeningup

6-4T-309a. Remove all refrigerant using a refrigerant recoverysystem.b. Therecommendedmethodtoevacuateanddehydratethesystemis to connect evacuation ho

6-5T -3096.7 REFRIGERANT CHARGE6.7.1 Checking the Refrigerant ChargeNOTEToavoiddamagetothe earth’sozonelayer, usearefrigerant recoverysystemwheneverre

iiT309TABLE OF CONTENTS (cont)2.5.1 Standard Operation 2-9...2.5.2 Economized Operation 2-9...

6-6T-309Table 6-1 Compressor KitItemComponent Qty1 Compressor 12 Service Valve Seal 33 Mylar Washers 44 Wire Tie 25 Oil Sight Glass Plug 16 Resilient

6-7T -309n. Place the new service seals (kit item 2) at the com-pressorserviceports, connectthe fourservice valvesloosely.o. Torquethefourresilientmou

6-8T-3096.10.2 Checking High Pressure SwitchWARNINGDo not use a nitrogen cylinder without apressure regulator. Do not use oxygen in ornear a refrigera

6-9T -3092. C heck the moisture-liquid indicator if the indicatorshowsahighlevelofmoisture,thefilter-driershouldbe replaced.b. To Replace Filter-Drier

6-10T -309Copper Tube(Apply heat for10-15 seconds)Bi-metallic T ube Connection(Apply heat for 2-5 seconds)Use of a wet cloth is not neces-sary due to

6-11T -309c. Determine which heater(s) need replacing by check-ing resistance on each heater. Refer to paragraph 2.3for heater resistance valuesd. Rem

6-12T -309the refrigeration unit into the container. The fan motorbearings are factory lubricated and do not requireadditional grease.6.17.1 Replacing

6-13T -309under load conditions. The important advantages of aanalyzer are its ability to locate capacitors that havefailed to hold their microfarad r

6-14T -3096.20.1 Precheck Procedurea. Check unit for abnormal operation.b. Check charge. If refrigerant is low repair as requiredand again check opera

6-15T -3091234521. Controller SoftwareProgramming Port2. Mounting Screw3. Controller4. Expansion Module5. Test PointsFigure 6-18 Controlle r Sec tion

iiiT309TABLE OF CONTENTS (cont)OPERATION 4-1...4.1 INSPECTION (Before St

6-16T -3095. Press the ENTER key on the keypad.6. TheDisplaywillshowthemessage“ProSoFt.”Thismessage will last for up to one minute.7. The Displaymodul

6-17T -309Table 6-2 Sensor Temperature/Resistance Chart(+/--.002%)TemperatureResistance____C ____F(Ohms)CFAMBS,CPSS,DTS, RTS,RRS, STS,SRSCPDS-- 30 --

6-18T -309SRS probeSTS probeSupplyAirStreamMountingClampSupply SensorSensorWiresBack Panel2.5” Drip LoopT.I.R. BoltsGasketedSupportPlateGasketMounting

6-19T -3096.24.2 CracksCracksin thecontrol box arerepaired usingafiberglasspatch over the damaged area. Materials required areincludedintheFiberglassP

6-20T -309Table 6-3 Crack, Chip & Hole Repair KitITEM DESCRIPTION PART NUMBER Qty1 Crack Repair Kit -- Includes 76--00724--00SV 12 Fiberglass Patc

6-21T -30903030303040403010707050506INSERT PART NUMBERS 34--06231--## WHERE THE ## IS AS INDICATEDFigure 6-24. Insert Location

6-22T -3096.25 COMMUNICATIONS INTERFACE MODULEINSTALLATIONCommunicationsinterface ModuleCB1Figure 6-25. Communications InterfaceInstallationUnits with

6-23T -309Table 6-7 R-134a Temperature - Pressure ChartTemperatureVacuum____F ____C “/hg cm/hg kg/cm@@@@ bar-- 40 -- 40 14.6 49.4 37.08 0.49.35 .37 12

7-1T -309SECTION 7ELECTRICAL WIRING SCHEMATIC7.1 INTRODUCTIONThis section contains the Electrical Schematics and Wiring Diagrams. The diagrams are pre

7-2T-309Figure 7-2 SCHEMATIC DIAGRAM

ivT309TABLE OF CONTENTS (cont)SERVICE 6-1...6.1 SECTION LAYOUT 6-1...

7-3T -309Figure 7-3 WIRING DIAGRAM (Sheet 1 of 2)

7-4T-309Figure 7-3 WIRING DIAGRAM (Sheet 2 of 2)

Index-1 T -309INDEXAAir Cooled Condenser Section, 2-4Alarm, 3-6, 3-10, 3-12, 3-17, 3-27BBattery, 1-1CCapacitors, 6-12Checking Superheat, 6-9Communicat

Index-2T -309INDEXKKey Pad, 3-2LLeak Checking, 6-3Logging Interval, 3-10MManifold Gauge S et, 6-1Microporcessor System, 3-1Modes Of Operation, 3-4OOil