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Carrier TRANSICOLD 69NT40-561-200 Operation And Service

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Container Refrigeration
OPERATION AND SERVICE
For
69NT40-561-200 to 299
Container Refrigeration Units
T−362

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Summary of Contents for Carrier TRANSICOLD 69NT40-561-200

  • Page 1 Container Refrigeration OPERATION AND SERVICE 69NT40-561-200 to 299 Container Refrigeration Units T−362...
  • Page 2 OPERATION AND SERVICE MANUAL CONTAINER REFRIGERATION UNIT Model 69NT40−561−200 to 299 ©Carrier Corporation, 2013 D Printed in U. S. A. May 2013...
  • Page 3 TABLE OF CONTENTS PARAGRAPH NUMBER Page GENERAL SAFETY NOTICES ............Safety−1 FIRST AID .
  • Page 4 TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page DESCRIPTION ................2−1 GENERAL DESCRIPTION .
  • Page 5 TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page 3.3.18 Frozen Economy Mode ............3−8 3.3.19 Frozen Mode Cooling - Sequence of Operation .
  • Page 6 TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page ADJUST FRESH AIR MAKEUP VENT ........... 4−1 4.3.1 Upper Fresh Air Makeup Vent .
  • Page 7 TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page EVACUATION AND DEHYDRATION ........... . 6−3 6.6.1 General .

  • Page 8: Table Of Contents

    TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page 6.23 TEMPERATURE SENSOR SERVICE ........... 6−18 6.23.1 Sensor Checkout Procedure .
  • Page 9 LIST OF ILLUSTRATIONS (Continued) FIGURE NUMBER Page Figure 6−5 Compressor Kit ..............6−5 Figure 6−6 High Pressure Switch Testing .

  • Page 10: Safety Summary

    SAFETY SUMMARY GENERAL SAFETY NOTICES SPECIFIC HAZARD STATEMENTS Installation and servicing of refrigeration equipment can To help identify the label hazards on the unit and explain be hazardous due to system pressures and electrical the level of awareness each one carries, an explanation components.
  • Page 11 WARNING CAUTION Make sure power to the unit is OFF and Charge water−cooled condenser or receiv- power plug disconnected before replacing er according to nameplate specifications to the compressor. ensure optimal unit performance. WARNING CAUTION Before disassembly of the compressor, be sure to relieve the internal pressure very Do not remove wire harnesses from con- carefully by slightly loosening the cou-...
  • Page 12 CAUTION CAUTION scroll compressor achieves When a failure occurs during automatic suction pressure very quickly. Do not use testing, the unit will suspend operation the compressor to evacuate the system awaiting operator intervention. below psig. Never operate compressor with the suction or discharge service valves closed (frontseated).

  • Page 13: Configuration Identification

    The plate sets the supply power down to 18 and 24 volts, single phase. are ordered using a seven−digit base part number and a The controller is a Carrier Transicold Micro−Link 3 two−digit dash number. microprocessor. The controller operates automatically to select cooling, holding or heating as required to 1.4 OPTION DESCRIPTIONS...
  • Page 14 1.4.6 Quest − CCPC 1.4.14 460 Volt Cable Various power cable and plug designs are available for Compressor−Cycle Perishable Cooling (CCPC) is a the main 460 volt supply. The plug options tailor the method temperature control used during cables to each customer’s requirements. steady−state perishable cooling that cycles the 1.4.15 230 Volt Cable compressor on and off according to supply / return air...

  • Page 15: General Description

    SECTION 2 DESCRIPTION 2.1 GENERAL DESCRIPTION 2.1.2 Fresh Air Makeup Vent The function of the upper or lower makeup air vent is to 2.1.1 Refrigeration Unit − Front Section provide ventilation for commodities that require fresh air The unit is designed so that the majority of the compon- circulation.
  • Page 16 2.1.3 Evaporator Section If the unit is equipped with eAutoFresh, system compon- ents are mounted in addition to the standard refrigera- The evaporator section is shown below. The evaporator tion unit components. The stepper motor component is fans circulate air through the container by pulling it in the installed in the vent;...
  • Page 17 2.1.4 Compressor Section pressure transducer (EPT) and the suction pressure transducer (SPT). The compressor section includes the compressor, digital unloader valve (DUV), high pressure switch, The supply temperature sensor and supply recorder discharge pressure transducer (DPT), evaporator sensor are located to the left of the compressor. 10 11 Compressor Digital Unloader Valve (DUV)
  • Page 18 2.1.5 Air−Cooled Condenser Section valve (ESV), and sight glass/moisture indicator. The condenser fan pulls air from around the coil and The air−cooled condenser section consists of the discharges it horizontally through the condenser fan condenser fan, condenser coil, receiver, liquid line grille.
  • Page 19 2.1.6 Control Box Section 2.1.7 Communications Interface Module The communications interface module is a slave The control box (Figure 2−5) includes: the manual module which allows communication between the operation switches, circuit breaker (CB−1), refrigeration unit and a ship system master central compressor, fan and heater contactors, control power monitoring station.

  • Page 20: Refrigeration System Data

    2.2 REFRIGERATION SYSTEM DATA Model Number ZMD26KVE−TFD−272 Weight (With Oil) 42.9 kg (95 lb) a. Compressor/Motor Assembly Approved Oil Uniqema Emkarate RL−32−3MAF Oil Charge 1774 ml (60 ounces) Verify at −18_C b. Electronic Expansion Valve (0F) container box 4.4 to 6.7_C (8 to 12_F) Superheat (Evaporator) temperature Verify at −18_C...

  • Page 21: Electrical Data

    2.3 ELECTRICAL DATA CB−1 (25 amp) Trips at 29 amps CB−2 (50 amp) Trips at 62.5 amps a. Circuit Breaker CB−2 (70 amp) Trips at 87.5 amps b. Compressor Full Load Amps (FLA) 13 amps @ 460 VAC Motor 380 VAC, Three Phase, 460 VAC, Three Phase, Nominal Supply 50 Hz...

  • Page 22: Table 2−1 Safety And Protective Devices

    Section 2.3 − ELECTRICAL DATA−CONTINUED Orange wire Power Red wire Output Brown wire Ground Input voltage 5 VDC Output voltage 0 to 3.3 VDC k. Humidity Sensor Output voltage readings verses relative humidity (RH) percentage: 0.99 V 1.65 V 2.31 V 2.97 V 2.4 SAFETY AND PROTECTIVE DEVICES Unit components are protected from damage by safety...

  • Page 23: Refrigeration Circuit

    2.5 REFRIGERATION CIRCUIT 2.5.2 Economized Operation 2.5.1 Standard Operation In the economized mode, (see Figure 2−7) the frozen Starting at the compressor, (see Figure 2−6, upper and pull down capacity of the unit is increased by sub- schematic) the suction gas is compressed to a higher cooling the liquid refrigerant entering the electronic ex- pressure and temperature.

  • Page 24: Standard Operation

    STANDARD OPERATION COMBO ETS1 AND 2 EVAPORATOR ELECTRONIC EXPANSION VALVE SIGHT CONDENSER GLASS FILTER DRIER LIQUID LEVEL/ MOISTURE LIQUID LINE INDICATOR SERVICE VALVE RECEIVER DIGITAL UNLOADER DISCHARGE ECON. TXV VALVE TEMPERATURE SENSING BULB SENSOR ECONOMIZER SOLENOID VALVE DISCHARGE DISCHARGE ECONOMIZER SERVICE PRESSURE VALVE...

  • Page 25: Economized Operation

    ECONOMIZED OPERATION COMBO ETS1 AND ETS2 EVAPORATOR ELECTRONIC EXPANSION VALVE CONDENSER SIGHT GLASS FILTER DRIER LIQUID LEVEL/ MOISTURE INDICATOR LIQUID LINE SERVICE VALVE RECEIVER DIGITAL DISCHARGE UNLOADER ECON. TXV TEMPERATURE VALVE SENSING BULB SENSOR ECONOMIZER SOLENOID VALVE DISCHARGE DISCHARGE PRESSURE SERVICE TRANSDUCER VALVE...

  • Page 26: Datacorder Software

    SECTION 3 MICROPROCESSOR 3.1 TEMPERATURE CONTROL The DataCORDER software functions to record unit operating parameters cargo temperature MICROPROCESSOR SYSTEM parameters for future retrieval. Coverage of the temperature control software begins with paragraph 3.2. The temperature control Micro-Link 3 microprocessor Coverage of the DataCORDER software is provided in system (see Figure 3−1) consists of a keypad, display paragraph 3.8.

  • Page 27: Table 3−1 Keypad Function

    3.1.1 Keypad Table 3−1 Keypad Function FUNCTION The keypad (Figure 3−2) is mounted on the control box door. The keypad consists of eleven push button CODE SELECT Accesses function codes. switches that act as the user’s interface with the control- Displays Pre-trip selection menu.

  • Page 28: Controller Software

    3.2 CONTROLLER SOFTWARE The controller software is a custom designed program that is subdivided into configuration software and opera- COOL HEAT DEFROST IN RANGE ALARM SUPPLY RETURN tional software. The controller software performs the fol- lowing functions: a. Control supply or return air temperature to required limits, provide modulated refrigeration operation, SETPOINT/Code AIR TEMPERATURE/Data...

  • Page 29: Modes Of Operation

    3.2.2 Operational Software (Cd Function Codes) During Bump Start, the EEV will close. Relays TS, TQ, TN, TE, and TV will be de-energized (opened). The res- ult of this action will close the ESV and shut all fans off. The operational software is the actual operation The compressor will start for 1 second, then pause for programming of the controller which activates or five seconds.
  • Page 30 Pull Down Perishable Mode (Only Applicable to Perishable Mode) Controller Set Point ABOVE −10°C (+14°F), Controller Set Point ABOVE −10°C (+14°F), or−5°C (+23°F) optionally or−5°C (+23°F) optionally +2.5°C (+4.5°F) Cooling, Cooling, Unloaded Economized Í Í Í Í Í Í Í Í Í Í Í +.20°C Í...
  • Page 31 Two timers are activated during dehumidification to pre- In order to initiate economy fan mode, a perishable set vent rapid cycling and consequent contactor wear: point must be selected prior to activation. When econ- omy fan mode is active, the evaporator fans will be con- 1.
  • Page 32 e. When the supply air temperature has fallen to within ENERGIZED 1.9_C (3.4_F) of set point temperature and the aver- DE-ENERGIZED age capacity of the system has fallen below 70%, the 24 VOLT POWER unit will open contacts TS to close the ESV and take the unit out of economized operation.
  • Page 33 Frozen Mode Controller Set Point at or BELOW −10°C (+14°F), or −5°C (+23°F) optionally +2.5°C (+4.5°F) Cooling, Economized +.20°C Í Í Í Í Í Í Í Í Í Í Í Set Point Í Í Í Í Í Í Í Í Í Í Í Í...
  • Page 34 f. When the return air temperature increases to 0.2_C 3.3.21 Automatic Defrost (0.4_F) above set point and three minutes have In perishable mode, perishable-pull down mode, or elapsed, the EEV opens and contacts TC, TS and TN frozen mode, automatic defrost starts with an initial de- close to restart the compressor, open the ESV and frost set to three hours and then adjusts the interval to restart the condenser fan motor.
  • Page 35 3. During Pretrip, defrost may occur during tests P-8, When defrost is initiated, the controller closes the EEV, and P-10. Defrost is forced during Pretrip test P-9. opens contacts TC, TN and TE (or TV) to de-energize the compressor, condenser fan and evaporator fans. The white COOL light is also de-energized.

  • Page 36: Protection Modes Of Operation

    When the return air temperature falls to 7_C (45_F), the 3.4.4 Compressor High Temperature Protection controller ensures that the defrost temperature sensor (DTS) reading has dropped to 10_C or below. If it has The controller continuously monitors compressor dis- not it indicates a failed DTS, a DTS failure alarm is charge pressure and temperature, and suction pres- triggered and the defrost mode is operated by the return sure.

  • Page 37: Quest − Ccpc

    3.5 QUEST − CCPC c. The left display will show “AL##,” where ## is the alarm number sequentially in the queue. Compressor-Cycle Perishable Cooling (CCPC) is a method of temperature control used during steady-state d. The right display will show the actual alarm code. perishable cooling that cycles the compressor on and off “AA##”...
  • Page 38 The unit is also fitted with program) interrogation connections (see Figure 3−1) which may be used with the Carrier Transicold DataReader to S Economy Mode Start and End download data. A personal computer with Carrier Trans- icold DataLINE software installed may also be used to S “Auto 1/Auto 2/Auto 3”...

  • Page 39: Table 3−2 Datacorder Configuration Variables

    21. Vent position sensor (VPS) configuration to generic and selecting which data points 3.8.4 Logging Interval (dCF03) to record may be done using the Carrier Transicold Data Retrieval Program. The user may select four different time intervals be- tween data recordings. Data is logged at exact intervals 1.
  • Page 40 Raw Data Report for ABC1234567 May 31, 2007 to Jun 04, 2007 System Configuration at the Time of Interrogation: Interrogated On May 05, 2007 Extracted by DataLINE Rev 1.0.0 Controller Software: 5327 Controller Serial #: 04163552 Bill of Lading #: 1 Origin: Origin Date: Destination:...

  • Page 41: Table 3−3 Datacorder Standard Configurations

    Table 3−3 DataCORDER Standard Configurations 2. Controller DC battery pack power: If a battery pack is installed, the DataCORDER will power up for communication when an interrogation cable is Standard plugged into an interrogation receptacle. Description Config. 3. External DC battery pack power: A 12 volt battery 2 sensors 2 thermistor inputs (supply &...
  • Page 42 a. DataLINE b. USDA/ Message Trip Comment The DataLINE software for a personal computer is sup- A special feature in DataLINE allows the user to enter a plied on both floppy disks and CD. This software allows USDA (or other) message in the header of a data report. interrogation, configuration variable...
  • Page 43 3.8.13 DataCORDER Alarms 4. Press the ALARM LIST key. “AL” will show on the left display and “‐‐‐‐‐” on the right display when there are The alarm display is an independent DataCORDER no alarms in the list. function. If an operating parameter is outside of the ex- pected range or a component does not return the cor- 5.

  • Page 44: Table 3−4 Controller Configuration Variables

    3.9 CONTROLLER CONFIGURATION VARIABLES Table 3−4 Controller Configuration Variables CONFIGURATION TITLE DEFAULT OPTION NUMBER CnF02 Evaporator Fan Speed dS (Dual) SS (Single) CnF03 Control Temperature Sensors FOUr duAL CnF04 Enable Dehumidification CnF08 Evaporator Motor Type CnF09 Refrigerant Type r134a r744 CnF11 Defrost “Off”...

  • Page 45: Table 3−5 Controller Function Codes

    3.10 CONTROLLER FUNCTION CODES Table 3−5 Controller Function Codes (Sheet 1 of 8) Code TITLE DESCRIPTION Note: If the function is not applicable, the display will read “‐‐‐‐‐” Display Only Functions − Cd01 through Cd26 are display only functions. Display Only Functions Digital Unloader Displays the DUV percent closed.
  • Page 46 Table 3−5 Controller Function Codes (Sheet 2 of 8) Cd21 Capacity Mode The mode of operation is displayed (Unloaded - Standard - Economized). Cd22 Compressor State The status of the compressor is displayed (OFF, On). Cd23 Evaporator Fan Displays the current evaporator fan state (OFF, LOW, HIGH). Compressor Run This code displays the time remaining until the unit goes into defrost (in tenths of Cd25...
  • Page 47 Table 3−5 Controller Function Codes (Sheet 3 of 8) The stagger start offset time is the amount of time that the unit will delay at start-up, thus allowing multiple units to stagger their control initiation when all Stagger Start Offset Cd31 Time (Seconds) units are powered up together.
  • Page 48 Table 3−5 Controller Function Codes (Sheet 4 of 8) If a valid container id exists, the default display for Cd40 will be “cd40_XXXXX” where “XXXXX” is the 5th character through the 9th character of the container id. Pressing the Enter key on Cd40 will display “id_YYYYYYY” where “YYYYYYY” is the 5th character to the 11th character of the container id.
  • Page 49 Table 3−5 Controller Function Codes (Sheet 5 of 8) Selects the airflow units to be displayed by Cd45 if configured for Vent Position Sensor or displayed by “USER/FLO” under Cd43 if configured for Autoslide. CF= Cubic Feet per Minute Cd46 Airflow Display Units CM=Cubic Meters per Hour bOth=Displays CF or CM depending on the setting of Cd28 (Metric/Imperial) or the pressing of the degree C/F key.
  • Page 50 Table 3−5 Controller Function Codes (Sheet 6 of 8) Display Only Function − Cd49 is a display only function. Displays the number of days since last successful pretrip sequence. Press ENTER to view the number of days since the last successful pretrip for Days Since Last Auto1, Auto2, and Auto2 in sequence.
  • Page 51 Table 3−5 Controller Function Codes (Sheet 7 of 8) ASC-mode: Cd53 increments of (1 day)_(1hr), Display: default “0_0 “ “done” mm-dd this will be display is ASC has completed “ASC” value “On” “OFF” Display /Select: default “OFF“ “nSC” value “1 - 6“ (This is the value “n” for the subsequent entries). “SP (n-1)”...
  • Page 52 Table 3−5 Controller Function Codes (Sheet 8 of 8) Configurable Functions − Cd59 through Cd61 are user-selectable functions. The operator can change the value of these functions to meet the operational needs of the container. Cd59 allows operation of the pump down logic control. The display will flash between “STArT PdN”...
  • Page 53 Start Troubleshooting Check Power Refer to CONNECT POWER Unit does Supply self test? Section 4.2 Refer to CONNECT POWER Check Power Evaporator Supply fans start? Section 4.2 Correct Install Latest Refer to CONTROLLER SOFTWARE software Software Section 3.2 version? Revision Unit Load correct Refer to Configuration Software (Variables)

  • Page 54: Table 3−6 Controller Alarm Indications

    3.11 CONTROLLER ALARM INDICATIONS Table 3−6 Controller Alarm Indications (Sheet 1 of 8) Alarm Code Cause Components Troubleshooting Corrective Actions AL03 Superheat has Electronic Check the operation of the Replace EEV if remained below Expansion Valve defective. EEV using Cd41. Loss of 1.66_C (3_F) degrees (EEV)
  • Page 55 Table 3−6 Controller Alarm Indications (Sheet 2 of 8) Alarm Code Cause Components Troubleshooting Corrective Actions AL16 Compressor current Current Sensor Compare Cd3 to actual Replace current sensor draw over measured current at wire if defective. Compressor calculated maximum T1-T2 or T3 going to the Current High for 10 minutes.
  • Page 56 Table 3−6 Controller Alarm Indications (Sheet 3 of 8) Alarm Code Cause Components Troubleshooting Corrective Actions AL18 Discharge pressure is Restrictions in the Ensure Liquid Line Service Open Liquid Line Ser- over the maximum for refrigeration Valve is fully open. vice Valve as needed.
  • Page 57 Table 3−6 Controller Alarm Indications (Sheet 4 of 8) Alarm Code Cause Components Troubleshooting Corrective Actions AL21 One of the 18 VAC System Sensors Check system sensors for Replace defective controller fuses short to ground. sensor(s) Control Circuit (F1/F2) is open. Refer Fuse (F1/F2) Wiring Check wiring for short to...
  • Page 58 Table 3−6 Controller Alarm Indications (Sheet 5 of 8) Alarm Code Cause Components Troubleshooting Corrective Actions AL28 Suction pressure too Power cycle the unit. Resetting the unit may low for normal correct problem, monitor Low Suction operation. the unit. Pressure Suction Pressure Confirm accurate...
  • Page 59 Table 3−6 Controller Alarm Indications (Sheet 6 of 8) Alarm Code Cause Components Troubleshooting Corrective Actions AL56 Invalid Return Return Perform Pre-trip P5: If P5 passes, no further Temperature Sensor Temperature action is required. Primary (RTS) reading. Sensor (RTS) Return Sensor If P5 fails, replace the (RTS) defective sensor as...
  • Page 60 Table 3−6 Controller Alarm Indications (Sheet 7 of 8) Alarm Code Cause Components Troubleshooting Corrective Actions AL65 Compressor Compressor Confirm accurate Replace DPT if Discharge Transducer Discharge pressure readings, refer to defective. Discharge is out of range. Transducer (DPT) MANIFOLD GAUGE SET Pressure Section 6.2.
  • Page 61 Table 3−6 Controller Alarm Indications (Sheet 8 of 8) NOTE If the controller is configured for four probes without a DataCORDER, the DataCORDER alarms AL70 and AL71 will be processed as Controller alarms AL70 and AL71. Refer to Table 3−10, page 3−45. The controller performs self-check routines.

  • Page 62: Table 3−7 Controller Pre-Trip Test Codes

    3.12 CONTROLLER PRE−TRIP TEST CODES Table 3−7 Controller Pre-trip Test Codes (Sheet 1 of 6) NOTE “Auto” or “Auto1” menu includes the: P0, P1, P2, P3, P4, P5, P6 and rSLts. “Auto2” menu in- cludes P0, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10 and rSLts. “Auto3” menu includes P0, P1, P2, P3, P4, P5, P6, P7 and P8.
  • Page 63 Table 3−7 Controller Pre-trip Test Codes (Sheet 2 of 6) P4 Tests - High Speed Evaporator Fans Current Draw: High speed evaporator fans are turned on, then off. Current draw must fall within specified range and measured current changes must exceed specified ratios. No other system components will change state during this test.
  • Page 64 Table 3−7 Controller Pre-trip Test Codes (Sheet 3 of 6) This is a Pass/Fail test of the primary evaporator temperature sensor (ETS1) and Primary .vs Sec- secondary evaporator temperature sensor (ETS2). ondary Evaporator P5-7 Temperature Test passes if secondary evaporator temperature sensor (ETS2) is within +/- 0.5_C Sensor Test of the primary evaporator temperature sensor (ETS1).
  • Page 65 Table 3−7 Controller Pre-trip Test Codes (Sheet 4 of 6) NOTE P6-6 through P6-10 are conducted by changing status of each valve and comparing suction pressure change and/or compressor current change with predetermined values. Tests will cause compressor and condenser fans to cycle on and off as needed to generate the pressure required for individual Pre-trip sub tests.
  • Page 66 Table 3−7 Controller Pre-trip Test Codes (Sheet 5 of 6) P8 Tests - Perishable Mode Tests: Pretrip tests P7-0 and P7-1 must have passed or have been skipped for these tests to execute. If the control temperature is below 15.6_C., the setpoint is changed to 15.6_C., and a 180 Minute timer is started.
  • Page 67 Table 3−7 Controller Pre-trip Test Codes (Sheet 6 of 6) P9 Test - DTT Close and Open Test: The DTT in this control is not a physical device, with actual metallic con- tacts, it is a software function that acts similar to a thermostat. Using various temperature inputs, the DTT func- tion determines whether a thermostat mounted on the Evaporator Coil would have OPEN or CLOSED contacts.

  • Page 68: Table 3−8 Datacorder Function Code Assignments

    Table 3−8 DataCORDER Function Code Assignments NOTE Inapplicable Functions Display “‐‐‐‐‐” To Access: Press ALT. MODE key then CODE SELECT key Code TITLE DESCRIPTION Recorder Supply Current reading of the supply recorder sensor. Temperature Recorder Return Current reading of the return recorder sensor. Temperature USDA 1,2,3 Temper- dC3-5...

  • Page 69: Table 3−9 Datacorder Pre-Trip Result Records

    Table 3−9 DataCORDER Pre-trip Result Records Test TITLE DATA Heater On Pass/Fail/Skip Result, Change in current for Phase A, B and C Heater Off Pass/Fail/Skip Result, Change in currents for Phase A, B and C Pass/Fail/Skip Result, Water pressure switch (WPS) - Open/Closed, Condenser Fan On Change in currents for Phase A, B and C Condenser Fan Off...

  • Page 70: Table 3−10 Datacorder Alarm Indications

    Table 3−10 DataCORDER Alarm Indications To Access: Press ALT. MODE key then ALARM LIST key Code No. TITLE DESCRIPTION The supply recorder sensor reading is outside of the range of -50_C to 70_C (-58_F to +158_F), or the probe check logic has determined there is Recorder Supply a fault with this sensor.

  • Page 71: Section 4 Operation

    SECTION 4 OPERATION 4.1 INSPECTION (Before Loading) 4.2.1 Connection To 380/460 VAC Power 1. Make sure start−stop switch (ST on control panel) and circuit breaker (CB−1 in the control box) are in position “0” (OFF). WARNING 2. Plug the 460 VAC (yellow) cable into a de−energized 380/460 VAC, 3−phase power source.
  • Page 72 4.3.1 Upper Fresh Air Makeup Vent 4.3.2 Lower Fresh Air Makeup Vent Two slots and a stop are designed into the Upper Fresh a. Full Open or Closed Positions Air disc for air flow adjustments. The first slot allows for a 0 to 30% air flow;...

  • Page 73: Eautofresh Operation

    4.3.3 Vent Position Sensor 4.4.1 eAutoFresh Pre−Trip Inspection Pre−trip testing of the eAutoFresh system is performed during Pre−Trip test P0. Operation of the system may be The VPS allows the user to determine the position of the observed during this test. fresh air vent via Cd45.

  • Page 74: Connect Remote Monitoring Receptacle

    CAL will attempt to calibrate the CO sensor. When To operate in GAS LIMIT mode, scroll until gASLM “CAL“ is selected the display will flash “CAL“. The appears in the left window, and press ENTER to activate operator is to hold the “ENTER“ key for 5 seconds. The the submenu.
  • Page 75 4.6 STARTING AND STOPPING INSTRUCTIONS 4.8 PRE−TRIP DIAGNOSIS CAUTION WARNING Pre−trip inspection should not be per- Make sure that the unit circuit breaker(s) formed with critical temperature cargoes in (CB−1 & CB−2) and the START−STOP the container. switch (ST) are in the “O” (OFF) position be- fore connecting to any electrical power source.

  • Page 76: Probe Diagnostics

    b. TO RUN AN AUTOMATIC TEST: Scroll through the menu, the user may press the UP ARROW key. selections by pressing the UP ARROW or DOWN When this is done, all test outputs will be ARROW keys to display AUTO, AUTO 1, AUTO 2 or de−energized and the test selection menu will be AUTO 3 as desired, then press ENTER.
  • Page 77 In the Case of Probe Disagreement: CAUTION If the supply probes disagree and the return probes agree, the controller will invalidate the worst supply The unit will remain in the full cooling mode probe. If the probe check is run as part of Pre−trip P−5, as long as the EB switch is in the On posi- an alarm will be triggered for the invalidated probe.

  • Page 78: Unit Will Not Start Or Starts Then Stops

    SECTION 5 TROUBLESHOOTING REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.1 UNIT WILL NOT START OR STARTS THEN STOPS External power source OFF Turn on Start−Stop switch OFF or defective Check No power to unit Circuit breaker tripped or OFF Check Autotransformer not connected 4.2.2 Circuit breaker OFF or defective...
  • Page 79 REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.3 UNIT RUNS BUT HAS INSUFFICIENT COOLING Abnormal pressures Abnormal temperatures 5.15 Abnormal currents 5.16 Controller malfunction Evaporator fan or motor defective 6.14 Refrigeration system Compressor service valves or liquid line shutoff valve Open valves partially closed completely Frost on coil...

  • Page 80: Abnormal Pressures

    REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.6 UNIT WILL NOT DEFROST PROPERLY (Continued) Heater contactor or coil defective Replace Initiates but does not defrost Heater(s) burned out 6.13 Frequent defrost Wet load Normal 5.7 ABNORMAL PRESSURES Condenser coil dirty 6.10.1 Condenser fan rotating backwards 6.10 Condenser fan inoperative...

  • Page 81: Eautofresh Not Operating

    REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.10 NO EVAPORATOR AIR FLOW OR RESTRICTED AIR FLOW Frost on coil Evaporator coil blocked Dirty coil 6.13 Evaporator fan motor internal protector open 6.14 Evaporator fan motor(s) defective 6.14 No or partial evaporator air flow Evaporator fan(s) loose or defective 6.14 Evaporator fan contactor defective...
  • Page 82 REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.13 AUTOTRANSFORMER MALFUNCTION Circuit breaker (CB−1 or CB−2) tripped Check Autotransformer defective 6.21 Unit will not start Power source not turned ON Check 460 VAC power plug is not inserted into the receptacle 4.2.2 5.14 COMPRESSOR OPERATING IN REVERSE NOTE The compressor may start in reverse for up to 10 seconds to determine correct phase rotation if...

  • Page 83: Section Layout

    EXPLOSION HAZARD Failure to follow this els covered within this manual. The manifold gauge/ WARNING can result in death, serious hose set is available from Carrier Transicold. (Carrier personal injury and / or property damage. Transicold part number 07-00294-00, which includes Never use air or gas mixtures containing items 1 through 6, Figure 6−2.)

  • Page 84: Service Connections

    6.3 SERVICE CONNECTIONS a. While the compressor is still ON, backseat the high side service valve. The compressor suction, compressor discharge, and the liquid line service valves (see Figure 6−3) are pro- b. Midseat both hand valves on the manifold gauge set vided with a double seat and an access valve which en- and allow the pressure in the manifold gauge set to be ables servicing of the compressor and refrigerant lines.

  • Page 85: Refrigerant Leak Checking

    The pump is available from Carrier cessary to open the ESV using a magnet tool, Transicold, P/N 07-00176-11. The micron gauge is P/N 07−00414−00. Carrier Transicold part number 07−00512−00. T-362 6−3...

  • Page 86: Refrigerant Charge

    c. Remove the ESV coil from the valve body. Place the 6.7.1 Checking the Refrigerant Charge magnet tool over the valve stem, an audible click will NOTE be heard when the ESV opens. Use a refrigerant recovery system whenever NOTE removing refrigerant.
  • Page 87 6.8 COMPRESSOR g. Remove the Rotalock fittings from the suction and discharge service connections, and uncouple the unloader and economizer lines from the com- pressor. WARNING h. Cut the dome temperature sensor (CPDS) wires. The replacement compressor comes with a CPDS Make sure power to the unit is OFF and already assembled.

  • Page 88: High Pressure Switch

    o. Place the new Teflon seals at the compressor suc- 6.9 HIGH PRESSURE SWITCH tion and discharge ports as well as the O−rings at the 6.9.1 Checking High Pressure Switch unloader and economizer line connection ports. Hand tighten all four connections. WARNING p.

  • Page 89: Condenser Coil

    6.10 CONDENSER COIL h. Cut the top and bottom drain lines midway between the side support bracket and the first cable tie, approx The condenser coil consists of a series of parallel cop- 150mm (6”) from the side support bracket. per tubes expanded into copper fins and formed into a i.

  • Page 90: Condenser Fan And Fan Motor

    j. Evacuate the entire unit, refer to Section 6.6. 6.11 CONDENSER FAN AND FAN MOTOR k. Slide the top and bottom drain lines back into place The condenser fan rotates counter-clockwise (viewed through the side support bracket. from front of unit). The fan pulls air through the con- denser coil, and discharges the air horizontally through l.

  • Page 91: Filter Drier

    6.12 FILTER DRIER e. Unsolder the two coil connections, one at the distrib- utor and the other at the coil header. a. To check filter drier: f. Disconnect the defrost temperature sensor (refer to 1. Test for a restricted or plugged filter drier by feeling 6.23) from the coil.

  • Page 92: Evaporator Fan And Motor Assembly

    6.14 EVAPORATOR FAN AND MOTOR ASSEMBLY d. Install the fan onto the motor shaft. Place one 5/8 flat washer with a 5/8-18 locknut onto the motor shaft and The evaporator fans circulate air throughout the con- torque to 40 foot-pounds. tainer by pulling air in the top of the unit.

  • Page 93: Electronic Expansion Valve

    2. Turn unit power off and remove power from the unit. This cleaner is available from the Carrier Transicold Performance Parts Group (PPG) and can be ordered 3. Remove coil.

  • Page 94: Economizer Expansion Valve

    6.17 ECONOMIZER SOLENOID VALVE 5. Place the top coil o−ring on the coil mounting screw and secure the coil to the valve using a torque− wrench. Torque the screw to 25 in−lbs. 6. Connect coil wires using butt−splices and heat− shrink tubing.
  • Page 95 6. VALVE REMOVAL: The preferred method of remov- 5. Loosen the nuts attaching the DUV to the top of the ing the valve is to cut the connection between the compressor. brazed section and the valve, using a small tube cut- 6.

  • Page 96: Valve Override Controls

    6.20 VALVE OVERRIDE CONTROLS a. Press the CODE SELECT key then press an AR- ROW key until Cd41 is displayed in the left window. Controller function code Cd41 is a configurable code The right window will display a controller communica- that allows timed operation of the automatic valves for tions code.
  • Page 97 Make sure the 460 VAC (yellow) power cable is handling and removal of a module. plugged into the receptacle (see Figure 6−14) and a. Obtain a grounding wrist strap (Carrier Transicold locked in place. P/N 07-00304-00) and a static dissipation mat (Carri- er Transicold P/N 07-00277-00).
  • Page 98 4. The display will alternate to between PrESS EntR and rEV XXXX. 5. Press the ENTER key on the keypad. 6. The display will show the message “Pro SoFt”. This message will last for up to one minute. 7. The display module will go blank briefly, then read “Pro donE”...
  • Page 99 14, 13, 11. SELECT will allow modification of the previous value. d. Using Driver Bit, Carrier Transicold part number 07−00418−00, remove the 4 screws securing the dis- 4. When the last value is entered, press the ENTER play module to the control box. Disconnect the ribbon key to enter the information to the controller;...

  • Page 100: Temperature Sensor Service

    6.23 TEMPERATURE SENSOR SERVICE b. Start unit and check sensor reading on the control panel. The reading should be 0_C (32_F). If the read- ing is correct, reinstall sensor; if it is not, continue with Service procedures for the return recorder, return tem- the following.

  • Page 101: Table 6−3 Sensor Resistance (Cpds)

    Table 6−3 Sensor Resistance (CPDS) °F Ohms °F Ohms °F Ohms 2,889,600 100.4 49,656 240.8 3,759 *36.4 2,532,872 104.0 45,812 244.4 3,550 *32.8 2,225,078 107.6 42,294 248.0 3,354 *29.2 1,957,446 111.2 39,078 251.6 3,173 1,724,386 114.8 36,145 255.2 3,004 *25.6 *22.0 1,522,200 118.4...

  • Page 102: Sensor Replacement

    6.23.2 Sensor Replacement WARNING É É É É É É É É É Always turn OFF the unit circuit breaker (CB-1) and disconnect main power supply É É É É É É É É É before removing electrical parts. a. Turn unit power OFF and disconnect power supply. 1.

  • Page 103: Sensors Sts And Srs Re-Installation

    6.23.3 Sensors STS and SRS Re-Installation To properly position a unit supply sensor (Supply Tem- perature Sensor STS or Supply Recorder Sensor SRS), the sensor must be fully inserted into the probe holder. This positioning will give the sensor the optimum amount of exposure to the supply air stream, and will al- low the Controller to operate correctly.

  • Page 104: Vent Position Sensor (Vps)

    6.23.7 Sensor, CPDS Re-Installation 4. Place a bead of the silicone sealer supplied with the replacement sensor around the sensor sealing ring. Insert sensor into the well with the leads parallel to To replace the Compressor Discharge Temperature the suction fitting. Sensor, see Figure 6−21: 5.

  • Page 105: Eautofresh Service

    6.25 eAutoFresh SERVICE Stepper Drive (SD) Stepper Motor (AF) 6.25.1 Servicing the eAutoFresh Air Filter Removing the Air Sample Filter Element The air sample filter element can be accessed in two ways: 1. Through the eAutoFresh side evaporator access panel. Figure 6−22 Stepper Components 2.

  • Page 106: Checking The Controller

    6.25.3 Checking the Controller There should be approximately five volts DC on sockets “C” and “D” (S1 and S2) when measured as above. If not a. Turn the unit OFF. the connections or controller is faulty. If any of these pins are not consistent, the connections or the controller is b.
  • Page 107 1. Connector 7. Grille 2. Tie Wrap 8. Grill Screws 3. eAutoFresh Panel 9. Rail Screws 4. Cup, Motor 10. Plate, Slide 5. Rail, Top 11. Rail, Bottom 6. Plate, Gasket 12. Motor Cup Screws Figure 6−24 Motor Cup Replacement T-362 6−25...

  • Page 108: Maintenance Of Painted Surfaces

    6.26 MAINTENANCE OF PAINTED SURFACES sioned, a provision wiring kit (Carrier Transicold part number 76-00685-00) must be installed. Installation in- The refrigeration unit is protected by a special paint structions are packaged with the kit. system against the corrosive atmosphere in which it normally operates.

  • Page 109: Table 6−4 R-134A Temperature - Pressure Chart

    Table 6−4 R-134a Temperature - Pressure Chart Temperature Vacuum Temperature Pressure “/hg cm/hg kg/cm psig kg/cm 14.6 49.4 37.08 0.49 24.5 168.9 1.72 1.69 26.1 180.0 1.84 1.80 12.3 41.6 31.25 0.42 27.8 191.7 1.95 1.92 32.8 24.64 0.33 29.6 204.1 2.08 2.04...

  • Page 110: Table 6−5 Recommended Bolt Torque Values

    Table 6−5 Recommended Bolt Torque Values BOLT DIA. THREADS TORQUE FREE SPINNING 5.2 in-lbs 9.6 in-lbs 20 in-lbs 23 in-lbs 75 in-lbs 5/16 11 ft-lbs 20 ft-lbs 7/16 31 ft-lbs 43 ft-lbs 9/16 57 ft-lbs 92 ft-lbs 124 ft-lbs NONFREE SPINNING (LOCKNUTS ETC.) 82.5 in-lbs 5/16 145.2 in-lbs...

  • Page 111: Electrical Wiring Schematics

    SECTION 7 ELECTRICAL WIRING SCHEMATICS 7.1 INTRODUCTION This section contains the Electrical Schematics and Wiring Diagrams. LEGEND SYMBOL DESCRIPTION SYMBOL DESCRIPTION AMBS AMBIENT SENSOR (C−23) HUMIDITY SENSOR (OPTIONAL) (F−23) CONTROLLER (L−21) HEAT TERMINATION THERMOSTAT (E−15) CIRCUIT BREAKER − 460 VOLT (J−1) INTERROGATOR CONNECTOR FRONT (T−23) OPTIONAL CIRCUIT BREAKER −...
  • Page 112 Based on Drawing 62−11737 Figure 7−2 SCHEMATIC DIAGRAM T-362 7−2...
  • Page 113 Based on Drawing 62−11737 Figure 7−3 UNIT WIRING DIAGRAM (Sheet 1 of 2) T-362 7−3...
  • Page 114 Based on Drawing 62−11737 Figure 7−6 UNIT WIRING DIAGRAM (Sheet 2 of 2) T-362 7−4...
  • Page 115 LEGEND SYMBOL DESCRIPTION SYMBOL DESCRIPTION AMBS AMBIENT SENSOR (C−23) HUMIDITY SENSOR (OPTIONAL) (F−23) CONTROLLER (L−21) HEAT TERMINATION THERMOSTAT (E−15) CIRCUIT BREAKER − 460 VOLT (J−1) INTERROGATOR CONNECTOR FRONT (T−23) OPTIONAL CIRCUIT BREAKER − DVM (OPTION) INTERROGATOR CONNECTOR REAR (T−24) (D−1) TERMINAL BLOCK WHEN CB2 NOT PRESENT INTERNAL PROTECTOR (E−14, F−11, G−14) CONDENSER FAN CONTACTOR (N−8, L−11) IN RANGE LIGHT (OPTION) (K−15)
  • Page 116 Based on Drawing 62−66088 Figure 7−5 SCHEMATIC DIAGRAM, Unit With Autotransformer T-362 7−6...
  • Page 117 Based on Drawing 62−11737 Figure 7−6 UNIT WIRING DIAGRAM, Unit With Autotransformer (Sheet 1 of 2) T-362 7−7...
  • Page 118 Based on Drawing 62−11737 Figure 7−6 UNIT WIRING DIAGRAM, Unit With Autotransformer (Sheet 2 of 2) T-362 7−8...
  • Page 119 INDEX Control Box, 1−1 Control Box Description, 2−5 Adjusting Fresh Air Makeup, 4−1 Controller, 1−2, 3−3 Air−Cooled Condenser Description, 2−4 CONTROLLER ALARM INDICATIONS, 3−29 Alarm Code, 3−29 Controller Alarms, 3−12 Alarm Indications, 3−29 Controller Alarm Codes, 3−29 Alarm Troubleshooting Sequence, 3−28 Controller Configuration Codes, 3−19 Aluminum oxide, 6−10 Controller Function Codes, 3−20...
  • Page 120 INDEX (Continued) Fumigation, 6−10 eAutoFresh, 1−2 eAutoFresh Modes of Operation, 4−3 GENERAL SAFETY NOTICES, Safety−1 eAutoFresh Operation, 4−3 General Unit Description, 2−1 eAutoFresh Pre−Trip Inspection, 4−3 Generator Protection, 3−11 eAutoFresh Service, 6−23 Gutters, 1−2 eAutoFresh Start−Up Procedure, 4−3 Economized Operation, Refrigeration Circuit, 2−9 Economizer Expansion Valve Service, 6−12 Economizer Solenoid Valve Service, 6−12 Handles, 1−2...
  • Page 121 INDEX (Continued) OPERATING PRECAUTIONS, Safety−1 Safety and Protective Devices, 2−8 Operational Software (Cd Function Codes), 3−4 Sensor and Cable Splice, 6−20 Option Descriptions, 1−1 Sensor DTS Re-Installation, 6−21 Sensor Replacement, 6−20 Sensor Types, 6−20 Sensor, CPDS Re-Installation, 6−22 Painted Surfaces Maintenance, 6−26 Sensors ETS1 and ETS2 Re-Installation, 6−21 Perishable Dehumidification, 3−5 Sensors RRS and RTS Re-Installation, 6−21...

  • Page 122: Vent Position Sensor (Vps)

    INDEX (Continued) Valve Override Controls, 6−14 07−00176−11, 6−3 Vent Position Sensor, 4−3 07−00277−00, 6−15 VENT POSITION SENSOR (VPS), 6−22 07−00294−00, 6−1 07−00304−00, 6−15 Water Cooling, 1−2 Wiring Schematic, 7−1 76−00685−00, 6−26 T-362 Index−4...
  • Page 123 A member of the United Technologies Corporation family. Stock symbol UTX Carrier Transicold Division, Carrier Corporation P.O. Box 4805 Syracuse, N.Y. 13221 U.S A www.carrier.transicold.com...

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