Carrier 69NT40--541--200 TO 299 Service Manual

T--317 Rev AOPERATION AND SERVICEfor69NT40--541--200 TO 299Container Refrigeration UnitsContainer Refrigerationr

ivT -317TABLE OF CONTENTS -- ContinuedTROUBLESHOOTING 5-1...5.1 UNIT WILL NOT ST

6-34T--317-- 6-- 4-- 20246810121460 70 80 90 100 110 120Ambient Air Temperaturepsig_F(Bar)(.97)(.83)(.69)(.55)(.41)(.28)(.14)(0)(--.14)(--.28)(--.41)0

7-1 T -317SECTION 7ELECTRICAL WIRING SCHEMATIC7.1 INTRODUCTIONThis section contains the Electrical Schematics and Wiring Diagrams. The diagrams are pr

7-2T--317SYMBOL DESCRIPTION (Schematic Location)AMBS AMBIENT SENSOR (E --19)BM BYPASS MODULE (D--20)CB1 CIRCUIT BREAKER -- 460 VOLT (J--1)CB2 CIRCUIT

7-3 T -317Figure 7 -2 SCHEMATIC DIAGRAM

7-4T--317TO KB7T ransFRESH CONTROLLERSTSEE FIGURE7--2TRSEE FIGURE7--2Lower Air Exchange VPSUpper Air Exchange VPSFigure 7-3 SCHEMATIC DIAGRAM -- Trans

7-5 T -317NOTE: STANDARD CONTROLLER J UMPERS: MA3 TO MA7 AND MA9 TO MA11(SEE Figure 7-2) ARE REMOVED IN THIS APPLICATIONCR8CR2CR3CR4CR6CR5NOTE: STANDA

7-6T--317TRC1TRC2KB7[DF11](ICFMAYBEINCONTROL BOX)WIRES TO TR X2:DF-- (TFC), P --(TFC),CIB1, GRD, CHA2,RMA, KA12, EFA2,HRA2 & CR8[CFS--2]UPPER VPSL

7-7 T -317NOTE: WHEN EB, ED, BM OR CFS IS/ARE INSTALLED, WIRE DESTINATIONS CHANGE FROM THE STANDARD.ADDRESSES FOR THE CHANGED DESTINATIONS ARE SHOWN I

Index-1 T -317INDEXAAir Cooled Condenser Section, 2-4Alarm, 3-6, 3-10, 3-12, 3-18, 3-27Ambient Sensor, 2-3Arctic Mode, 3-4Autotransformer, 6-18BBulb M

Index-2T -317INDEX -- ContinuedKKey Pad, 3-2LLeak Checking, 6-3Liquid Line Process Tube, 2-5, 6-1, 6-6, 6-10Logging Interval, 3-10Lower Air, 1-2MMicro

v T -317TABLE OF CONTENTS -- Continued6.14 THERMOSTATIC EXPANSION VALVE 6-14...6.14.1 Checking Superhea

Index-3 T -317INDEX -- ContinuedVValveDischarge Pressure Regulator, 2-3Quench Expansion, 2-3Stepper Motor Suction Modulation, 2-3Vent Postion Sensor ,

©2004 Carrier Corporation D PrintedinU.S.A.11/04Carrier Transicold Division,Carrier CorporationContainer Products GroupP.O. Box 4805Syracuse, N.Y. 132

viT -317LIST OF ILLUSTRATIONSFIGURE NUMBER PageFigure 2-1 Refrigeration Unit -- Front Section 2-1...

vii T -317LIST OF ILLUSTRATIONS -- ContinuedFIGURE NUMBER PageFigure 6-24 Sensor and Cable Splice 6-23...

1-1 T -317SECTION 1INTRODUCTION1.1 INTRODUCTIONThe Carrier Transicold model 69NT40--541--200/299series units are of lightweight aluminum frameconstruc

1-2T -3171.3.11 Condenser CoilTheunitisfittedwitha3rowcoilusing7mmtubing.1.3.12 AutotransformerAn autotransformer may be provided to allow operationon

T -3172-1SECTION 2DESCRIPTION2.1 GENERAL DESCRIPTION2.1.1 Refrigeration Unit -- Front SectionThe unit is designed so that the majority of thecomponent

2-2T -3172.1.3 Evaporator SectionThe evaporator section (Figure 2-2) contains thetemperature recorder bulb or return recorder sensor,return temperatur

T -3172-32.1.4 Compressor SectionThe compressor section includes the compressor (withhigh pressure switch), power cable storagecompartment, and autotr

2-4T -3172.1.5 Air Cooled Condenser SectionThe air cooled condenser section (Figure 2-4) consistsof the condenser fan, condenser coil, receiver with s

OPERATION AND SERVICE MANUALCONTAINER REFRIGERATION UNITModels69NT40--541--200 to 299

T -3172-52.1.6 Water-Cooled Condenser SectionThe water-cooled condenser section (Figure 2-5)consists of a water-cooled condenser, sight glass,quench e

2-6T -3172.1.7 Control Box SectionThe control box (Figure 2-6) includes the manualoperation switches; circuit breaker (CB-1); compressor ,fan and heat

T -3172-72.2 REFRI GERATION SYSTEM DATAa. Compressor/MotorAssemblyNumber of Cylinders 6Model 06DRCFM 41Weight (Dry) 118kg(260lb)Approved Oil Castrol I

2-8T -3172.3 ELECTRICAL DATAa. Circuit BreakerCB-1 Trips at 29 ampsCB-2 (50 amp) Trips at 62.5 ampsCB-2 (70 amp) Trips at 87.5 ampsb. CompressorMotorF

T -3172-9i. Humidity SensorOrange wire PowerRed wire OutputBrown wire GroundInput voltage 5vdcOutput voltage 0to3.3vdcOutput voltage readings verses r

2-10T -3172.5 REFRIGERATION CIRCUITStarting at the compressor, (see Figure 2-7, upperschematic) the suction gas is compressed to a higherpressure and

T -3172-111.High Pressure Switch2.Discharge PressureRegulator Valve3.Air-Cooled Condenser4.Evaporator5. ThermostaticExpansion Valve6. External Equaliz

3-1T -317SECTION 3MICROPROCESSOR3.1 TEMPERATURE CONTROL MICROPRO-CESSOR SYSTEMThe temperature control Micro-Link 3 microprocessorsystem (see Figure 3-

3-2T -3173.1.1 Key PadThe key pad (Figure 3- 2) is mounted on the right-handside of the control box. The key pad consists of elevenpush button switche

3-3T -317812 33 3 3 345 671. Mounting Screw2. Micro-Link 3Controller3. Connectors4. Test Points5. Fuses6. Control Circuit Power Connection(Location: I

T -317Safety-1SAFETY SUMMARYGENERAL SAFETY NOTICESThe following general safety notices supplement the specific warnings and cautions appearing elsewhe

3-4T -317To access the function codes, perform the following:a. Press the CODE SELECT key, then press an arrowkey until the left window displays the d

3-5T -3173.3.8 Perishable Mode -- ConventionalThe unit is capable of maintaining supply airtemperature to within ¦0.25_C(¦0.5_F) of set point.Supply a

3-6T -317In addition, if bulb mode is active, function code Cd37may be set to override the previous defrost terminationthermostat settings. (Refer to

3-7T -317d. The right display will show the actual alarm code.“AA##” will display for an active alarm, where “##” isthe alarm code. Or “IA##” will dis

3-8T -317Table 3-2 DataCORDER Configuration VariablesCONFIGURATION NO.TITLE DEFAULT OPTIONdCF01 (Future Use) -- -- -- --dCF02 Sensor Configuration 2 2

3-9T -317Raw Data Report for ABC1234567May 31, 2001 to Jun 04, 2001System Configuration at the Time of Interrogation:Interrogated On Sept 05, 2001Extr

3-10T -3173.6.4Logging Interval (dCF03)The user may configure four time intervals betweendata recordings. Data is logged at exact intervals inaccordan

3-11T -317b. DataLineThe DataLINE software for a personal computer issupplied on both floppy disks and CD. This softwareallows interrogation, configur

3-12T -317a. USDA RecordingA special type of recording is used for USDA coldtreatment purposes. Cold treatment recording requiresthree remote temperat

3-13T -317Table 3-4 Controller Configuration VariablesCONFIGURATIONNUMBERTITLE DEFAULT OPTIONCnF01 Bypass Valve Enable In OutCnF02 Evaporator Fan Spee

Safety-2T -317SPECIFIC W ARNING AND CAUTION STATEMENTS -- ContinuedWARNINGMake sure that the unit circuit breaker(s)(CB- 1 & CB-2) and the START-S

3-14T -317Table 3-5 Controller Function Codes (Sheet 1 o f 4)CodeNo.TITLE DESCRIPTIONNote: If the function is not applicable, the display will read “

3-15T -317Table 3-5 Controller Function Codes (Sheet 2 o f 4)Cd22Compressor Speed The status of the compressor is displayed (high, low or off).Cd23 Ev

3-16T -317Table 3-5 Controller Function Codes (Sheet 3 o f 4)Cd31Stagger Start OffsetT ime (Seconds)The stagger start offset time is the amount of tim

3-17T -317Table 3-5 Controller Function Codes (Sheet 4 o f 4)Cd38Secondary SupplyTemperature SensorCode Cd38 will display the current secondary supply

3-18T -317Table 3-6 Controller Alarm Indications (Sheet 1 of 3)CodeNo.TITLE DESCRIPTIONAL11Evaporator Motor 1IP TripAlarm 11 is applicable to units wi

3-19T -317Table 3-6 Controller Alarm Indications (Sheet 2 of 3)AL54Primary Supply Tem-perature SensorFailure (STS)Alarm 54 is activated by an invalid

3-20T -317Table 3-6 Controller Alarm Indications (Sheet 3 of 3)AL66Suction PressureT ransducer FailureAlarm 66 is triggered by a suction pressure tran

3-21T -317Table 3-7 Controller Pre-Trip Test Codes (Sheet 1 of 4)CodeNo.TITLE DESCRIPTIONNOTE“Auto” or “Auto1” menu includes the: P, P1, P2, P3, P4, P

3-22T -317Table 3-7 Controller Pre-Trip Test Codes (Sheet 2 of 4)P5-1Supply Probe TestRequirements: For units equipped with secondary supply probe onl

3-23T -317Table 3-7 Controller Pre-Trip Test Codes (Sheet 3 of 4)P7-0High PressureSwitch Closed(Continued)Note, this test is skipped if the unit does

T -317Safety-3SPECIFIC W ARNING AND CAUTION STATEMENTS -- ContinuedCAUTIONWhen Pre-Trip key is pressed, dehumidifi-cation and bulb mode will be deacti

3-24T -317Table 3-7 Controller Pre-Trip Test Codes (Sheet 4 of 4)P8-2Perishable ModeMaintain Tempera-ture TestRequirements: Test P8-1 must pass for th

3-25T -317Table 3-8 DataCORDER Function Code AssignmentsNOTEInapplicable Functions Display “-- -- -- -- -- ”To Access: Press ALT. MODE keyCodeNo.TITLE

3-26T -317Table 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 -317Table 3-10 DataCORDER Alarm IndicationsTo Access: Press ALT. MODE keyCode No. TITLE DESCRIPTIONdAL70Recorder Supply Tem-perature Out of Rang

T -3174-1SECTION 4OPERATION4.1 INSPECTION (Before Starting)WARNINGBeware of unannounced starting of theevaporator and condenser fans. The unitmay cycl

T--317 4-24.3.1 Upper Fresh Air Makeup VentT wo slots and a stop are designed into the disc for airflow adjustments. The first slot allows for a 0 to

T -3174-3cooled condenser . The refrigeration unit will shift toair-cooled condenser operation when the water pres-sure switch closes.

T--317 4-44.4.2 Water-Cooled Condenser with CondenserFan Switcha. Connect the water supply line to the inlet side of con-denser and the discharge line

T -3174-5PRE-TRIP SELECT ION MENUAuto or Auto 1 Auto 2 Auto 3P, P1, P2, P3,P4, P5, P6,rSLtsP, P1, P2, P3,P4, P5, P6, P7,P8, P9, P10,rSLtsP, P1, P2, P3

T--317 4-64.9.2 Probe CheckIf the DataCORDER is off, or in alarm mode thecontroller will revert to a four probe configuration whichincludes the DataCO

Safety-4T -317SPECIFIC W ARNING AND CAUTION STATEMENTS -- ContinuedCAUTIONIf the thermostatic expansion valve is foundto be in need of replacement, th

T -3174-7AIRCIRCULATIONONLYSET POINTFALLINGTEMPERATURERISINGTEMPERATURE-- 1 . 5 _C(2.7_F)-- 1 _ C(1.8_F)-- 0 . 5 _C(0.9_F)--0.20_C+.20_C+1.5_C(2.7_F)+

T--317 4-84.10.2 Sequence Of Operation --Perishable Mode HeatingNOTEThe unit will heat only when in the PerishableMode, relay TH is electronically loc

T -3174-94. The controller probe diagnostic logic determines thata probe check is necessary based on the tempera-ture values currently reported by the

5-1T -317SECTION 5TROUBLESHOOTINGCONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.1 UNIT WILL NOT START OR STARTS THEN STOPSNo power to unitExternal p

5-2T -317CONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.3 UNIT RUNS BUT HAS INSUFFICIENT COOLINGCompressor Compressor valves defective 6.8Refrigerat

5-3T -317CONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.6 UNIT WILL NOT DEFROST PROPERLY --ContinuedFrequent defrost Wet load Normal5.7 ABNORMAL PRE

5-4T -317CONDITION POSSIBLE CAUSEREMEDY/REFERENCESECTION5.10 NO EVAPORATOR AIR FLOW OR RESTRICTED AIR FLOWEvaporator coil blockedFrost on coil 5.6Dirt

6-1T--317SECTION 6SERVICENOTETo avoid damage to the earth’s ozone layer , usea refrigerant recovery system whenever remov-ing refrigerant. When workin

6-2T--317Only a R-134a manifold gauge set with self-sealinghoses, as shown in Figure 6-3 (CTD P/N 07-00294-00,which includes items 1 through 6) can be

6-3T--317The refrigeration unit is now ready for repair, and/orcomponent replacement.8. Pressurize the system with nitrogen and R-134a,and leak test t

i T -317TABLE OF CONTENTSPARAGRAPH NUMBER PageGENERAL SAFETY NOTICES Safety-1...FIRST AID Saf

6-4T--317b. The recommended method to evacuate and dehy-drate the system is to connect three evacuationhoses (see Figure 6-4) to the vacuum pump andre

6-5T--317CAUTIONMake sure supply air temperature does notgo below the original set point for morethan five minutes, or damage to the loadmay occur.d.

6-6T--3176.8 COMPRESSO RWARNINGMake sure power to the unit is OFF andpower plug disconnected before replacingthe compressor.NOTES1 The compressor shou

6-7T--3176.8.2 Compressor DisassemblyWARNINGBefore disassembly of any external com-pressor component make sure to relievepossible internal pressure by

6-8T--31721345Set screw must be removed.1. Oil Pump & BearingHead2. Thrust Washer3. Oil Pickup Tube4. Oil Inlet Port5. Oil Pump InletFigure 6- 8 O

6-9T--3171231. Equalizer Tube andLock Screw Assembly2. Lockwasher3. Counterweight --Motor EndFigure 6-11 Equalizing Tube and Lock ScrewAssembly1234567

6-10T--317b. Install the pump end thrust washer on the two dowelpins located on the bearing head. (See Figure 6-8.)CAUTIONEnsure that thrust washer do

6-11T--317d. Removing Oil from the Compressor1. If the oil level recorded in step a.3 is above one-eighthlevel of the capacity of the sight glass, oil

6-12T--317coil, and discharges horizontally through the front of theunit. To replace motor assembly:a. Open condenser fan screen guard.b. Loosen two s

6-13T--317WARNINGOakite No. 32 is an acid. Be sure that theacid is slowly added to the water. DO NOTPUT WATER INTO ACID -- this will causespattering a

iiT -317TABLE OF CONTENTS -- ContinuedDESCRIPTION 2-1...2.1 GENERAL DESCRI

6-14T--3171. Pump down the unit and replace filter-drier.2. Evacuate the system in accordance with paragraph6.6.3. After unit is in operation, inspect

6-15T--3176.14.2 Hermetic Valve Replacementa. Removing the Expansion ValveNOTES1. The TXV is a hermetic valve and does nothave adjustable superheat.2.

6-16T--317c. Determine which heater(s) need replacing by check-ing resistance on each heater. Refer to paragraph 2.3for heater resistance valuesd. Rem

6-17T--317in high speed. In the economy perishable mode theyshould switch speeds and in the frozen mode, the mo-tors should run in low speed.NOTEThe e

6-18T--317sure that the wires terminate in accordance with thewire markings (addresses).h. Attach a manifold gauge set. If the unit is operating inthe

6-19T--317d. Using a voltmeter, and with the primary supply circuitON, check the primary (input) voltage (460 vac).Next, check the secondary (output)

6-20T--317any arc welding on the unit, or when service to therefrigeration unit requires handling and removal of thecontroller.123 41. Controller Soft

6-21T--3177. The Display module will go blank briefly, then read“Pro donE” when the software loading has loaded. (Ifa problem occurs while loading the

6-22T--317Table 6-1 Sensor Temperature/Resistance ChartTemperatureCentigradeTemperatureFahrenheitResistance(Ohms)RRS, RTS, SRS and STS:0 32 32,650±912

6-23T--317Sensor (Typical)CableHeat ShrinkT ubingLarge Heat ShrinkT ubingREPLACEMENT 2 WIRE TO 2WIRE OR 3 WIRE TO 3 WIREREPLACEMENT FOR DUAL SINGLESEN

iii T -317TABLE OF CONTENTS -- Continued3.6 DataCORDER 3-7...3.6.1 Description 3-

6-24T--317123456789101. Recorder Door2. Change ChartButton3. Recorder Box4. Pen T ip5. Stylus Arm6. Connector7. Calibration Button(Located underneath)

6-25T--317pen tip (item 4). Exert pull on the gage perpendicular tothe chart surface. The measured force should be notedjust as the pen tip leaves the

6-26T--317T ransicold part number 76-00724-00SV (seeTable 6-2). Do not use an acetone based siliconesealant (Which can be identified by a vinegar--lik

6-27T--317Table 6-2 Crack, Chip & Hole Repair KitITEM DESCRIPTION PART NUMBER Qty1 Crack Repair Kit -- Includes 76--00724--00SV 12 Fiberglass Patc

6-28T--3170303030303040403010707050506INSERT PART NUMBERS 34--06231--## WHERE THE ## IS AS INDICATEDFigure 6- 29. Insert Location

6-29T--3176.27 COMMUNICATIONS INTERFACE MODULEINSTALLATIONCommunicationsinterface ModuleCB1Figure 6-30. Communications InterfaceInstallationUnits with

6-30T--317Table 6-6 Wear Limits For CompressorsPART NAMEF ACTOR Y MAXIMUM FACTORY MINIMUMMAXIMUM WEARBEFORE REPAIRinches mm inches mm inches mmMAIN BE

6-31T--317Table 6-8 Compressor Torque ValuesTORQUE RANGEUSAGESIZEDIAMETER THREADSft-lb N.m(inches) PER INCH1/16 27 (pipe) 8--12 11 - - 16 Pipe Plug --

6-32T--317Table 6-9 R-134a Temperature - Pressure ChartTemperature Vacuum_F _C “/hg cm/hg kg/cm@ bar-- 4 0 -- 4 0 14.6 49.4 37.08 0.49.35 .37 12.3 41.

6-33T--3178010012014016018020022024026028030032060 70 80 90 100 110 120psig(43.3)(37.8)(32.2)(26.7)(21.1)(15.6)_F(_C)(Bar)(5.5)(6.9)(8.3)(9.7)(11.0)(1