Carrier 69NT40-561-199 Operation And Service
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Carrier 69NT40-561-199 Operation And Service

Carrier 69NT40-561-199 Operation And Service

Container refrigeration units
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Container Refrigeration
OPERATION AND SERVICE
for
69NT40-561-001 to 199
Container Refrigeration Units
T−340 Rev D

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Summary of Contents for Carrier 69NT40-561-199

  • Page 1 Container Refrigeration OPERATION AND SERVICE 69NT40-561-001 to 199 Container Refrigeration Units T−340 Rev D...
  • Page 2 OPERATION AND SERVICE MANUAL CONTAINER REFRIGERATION UNIT Models 69NT40−561−001 to 199 ©Carrier Corporation, 2012 D Printed in U. S. A. May 2012...
  • Page 3 TABLE OF CONTENTS PARAGRAPH NUMBER Page INTRODUCTION ................1−1 INTRODUCTION .
  • 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 eAutoFresh OPERATION ............. . 4−3 4.4.1 eAutoFresh Pre−Trip Inspection .
  • Page 7 TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page REFRIGERANT LEAK CHECKING ........... . . 6−3 EVACUATION AND DEHYDRATION .

  • Page 8: Table Of Contents

    TABLE OF CONTENTS (Continued) PARAGRAPH NUMBER Page 6.24 TEMPERATURE SENSOR SERVICE ........... 6−19 6.24.1 Sensor Checkout Procedure .
  • Page 9 LIST OF ILLUSTRATIONS (Continued) FIGURE NUMBER Page Figure 4−3 Diagram of Emergency Bypass Connections ......... . . 4−8 Figure 6−1 Manifold Gauge Set .
  • Page 10 LIST OF TABLES TABLE NUMBER Page Table 2−1 Safety and Protective Devices ............2−9 Table 3−1 Keypad Function .
  • Page 11 SAFETY SUMMARY GENERAL SAFETY NOTICES SPECIFIC WARNING AND CAUTION STATEMENTS To help identify the label hazards on the unit and explain The following general safety notices supplement specif- the level of awareness each one carries, an explanation ic warnings and cautions appearing elsewhere in this is given with the appropriate consequences: manual.
  • Page 12 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 13 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 14 18 and 24 volts, single phase. schematics and wiring diagram plates. The plate sets 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 15 1.4.6 Quest − CCPC 1.4.15 460 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 compressor on and off according to supply / return air 1.4.16 230 Volt Cable...
  • Page 16 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 compo- circulation.
  • Page 17 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 (Figure 2−2) contains the return tion unit components. The stepper motor component is temperature sensor, humidity sensor, electronic expan- installed in the vent;...
  • Page 18 2.1.4 Compressor Section pressure transducer (EPT) and the suction pressure transducer (SPT). The compressor section includes the compressor, The supply temperature sensor, supply recorder sensor digital unloader valve (DUV), high pressure switch, and ambient sensor are located to the left of the com- discharge pressure transducer (DPT), evaporator pressor.
  • Page 19 2.1.5 Air−Cooled Condenser Section solenoid valve (ESV), and sight glass/moisture indicator. air−cooled condenser section (Figure 2−4) consists of the condenser fan, condenser coil, receiver, The condenser fan pulls air through the bottom of the liquid line service valve, filter drier, fusible plug, coil and discharges it horizontally through the con- economizer, economizer expansion valve, economizer denser fan grille.
  • Page 20 2.1.6 Water−Cooled Condenser Section economizer solenoid valve (ESV), and moisture/liquid indicator. The water−cooled condenser section (Figure 2−5) consists of a water−cooled condenser, sight glass, rupture disc, filter drier, water couplings, water pressure The water−cooled condenser replaces the standard unit switch, economizer, economizer expansion valve, receiver.
  • Page 21 2.1.7 Control Box Section 2.1.8 Communications Interface Module The communications interface module is a slave The control box (Figure 2−6) 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 22 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 23 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, Single Phase, 460 VAC, Single Phase, 50 Hz 60 Hz...

  • Page 24: 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 l. 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 25 2.5 REFRIGERATION CIRCUIT During the standard mode of operation, the normally closed digital unloader valve (DUV) controls the system 2.5.1 Standard Operation refrigerant flow and capacity by loading and unloading the compressor in frequent discrete time intervals. If the Starting at the compressor, (see Figure 2−7, upper system capacity has been decreased to the lowest al- schematic) the suction gas is compressed to a higher lowable capacity with the DUV, the unit will enter a trim...
  • Page 26 STANDARD OPERATION WITH RECEIVER COMBO EVAPORATOR ETS1 AND 2 ELECTRONIC EXPANSION VALVE CONDENSER DIGITAL UNLOADER VALVE ECON. DISCHARGE SENSING TEMPERATURE BULB SENSOR ECONOMIZER SOLENOID DISCHARGE VALVE SERVICE VALVE SIGHT EVAPORATOR ECONOMIZER GLASS PRESSURE TRANSDUCER FILTER SUCTION DRIER LIQUID LEVEL/ PRESSURE DISCHARGE ECONOMIZER MOISTURE...
  • Page 27 ELECTRONIC EXPANSION VALVE ECON. SENSING ECONOMIZER BULB SOLENOID VALVE ECONOMIZER ECONOMIZER LIQUID LINE SERVICE VALVE RECEIVER COMPRESSOR LIQUID ECONOMIZER PRESSURE Figure 2−8 Refrigeration Circuit Schematic − Economized Operation T-340 2−12...
  • Page 28 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 29: Table 3−1 Keypad Function

    3.1.1 Keypad Table 3−1 Keypad Function FUNCTION The Keypad (Figure 3−2) is mounted on the right-hand side of the control box. The keypad consists of eleven CODE SELECT Accesses function codes. push button switches that act as the user’s interface Displays Pre-trip selection menu.
  • Page 30 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 31 3.2.2 Operational Software (Cd Function Codes) The compressor will start for 1 second, then pause for five seconds. This sequence will be repeated two more The operational software is the actual operation times. After the final bump start the unit will pre-position programming of the controller which activates or the EEV to the correct starting position, pause and start deactivates components in accordance with current unit...
  • Page 32 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 33 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 34 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 35 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 36 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 37 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 38 When the return air temperature falls to 7_C (45_F), the 3.4.4 Compressor High Temperature, controller ensures that the defrost temperature sensor Pressure Protection (DTS) reading has dropped to 10_C or below. If it has not it indicates a failed DTS, a DTS failure alarm is The controller continuously monitors compressor dis- triggered and the defrost mode is operated by the return charge pressure and temperature, and suction pres-...
  • Page 39 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 40 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 41: Vent Position Sensor (Vps)

    Changing the 21. Vent position sensor (VPS) configuration to generic and selecting which data points to record may be done using the Carrier Transicold Data 3.8.4 Logging Interval (dCF03) Retrieval Program. The user may select four different time intervals be- tween data recordings.
  • Page 42 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 43: Table 3−3 Datacorder Standard Configurations

    Configuration identification for the models covered 1. Normal AC power: The DataCORDER is powered herein may be obtained on the Container Products up when the unit is turned on via the Stop-Start Group Information Center by authorized Carrier Trans- switch. icold Service Centers. T-340...
  • Page 44 With a communications interface module installed, all a. DataReader functions and selectable features that are accessible at The Carrier Transicold Data Reader (see Figure 3−12) the unit may be performed at the master station. Re- is a simple to operate handheld device designed to ex- trieval of all DataCORDER reports may also be per- tract data from the DataCORDER and upload it to a PC.
  • Page 45 e. If no alarms are active, the alarm queue may be Place in pulp of the product located next Sensor 1 cleared. The exception to this rule is the DataCORD- to the return air intake. ER alarm queue Full alarm (AL91), which does not Place in pulp of the product five feet have to be inactive in order to clear the alarm list.

  • Page 46: 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 47: 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 48 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 49 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 50 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 51 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 52 Table 3−5 Controller Function Codes (Sheet 6 of 8) Configurable Functions − Cd50 through Cd53 are user-selectable functions. The operator can change the value of these functions to meet the operational needs of the container. ”OFF” = disabled. ”On” = enabled. ”SEtPt”...
  • Page 53 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 54 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 55 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 56: 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 57 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 58 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 59 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 60 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 61 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 62 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 63 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 64: 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 65 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 66 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 67 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 68 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 69 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 70: Table 3−8 Datacorder Function Code Assignments

    Table 3−8 DataCORDER Function Code Assignments NOTE Inapplicable Functions Display “‐‐‐‐‐” To Access: Press ALT. MODE 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 Current readings of the three USDA probes.

  • Page 71: 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 72: Table 3−10 Datacorder Alarm Indications

    Table 3−10 DataCORDER Alarm Indications To Access: Press ALT. MODE 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 73 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 74 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 75 4.3.3 Vent Position Sensor Upon initiation of Pre−Trip P0, the current state will be saved and the vent will fully close. This will be followed The VPS allows the user to determine the position of the by two sequences of opening to 100% and returning to the closed position.
  • Page 76 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 77 4.5.2 Water−Cooled Condenser with Condenser 4.7.1 Starting the Unit Fan Switch a. With power properly applied, the fresh air vent posi- a. Connect the water supply line to the inlet side of con- tion set and (if required) the water−cooled condenser denser and the discharge line to the outlet side of the connected (refer to paragraphs 4.2, 4.3 &...
  • Page 78 4.9 PRE−TRIP DIAGNOSIS 3. Pre−trip also initiated communications. The operation is the same as for the keypad initiation described CAUTION below except that should a test fail, the Pre−trip mode will automatically terminate. When initiated via communications, a Pre−trip inspection should not be per- Pre−trip test may not be interrupted with an formed with critical temperature cargoes in arrow key, but the Pre−trip test can be...
  • Page 79 c. TO RUN AN INDIVIDUAL TEST: Scroll through the The probe check procedure consists of running the selections by pressing the UP ARROW or DOWN evaporator fans for up to eight minutes in order to com- ARROW keys to display an individual test code. pare the readings from the adjacent temperature Pressing ENTER when the desired test code is probes.
  • Page 80 4.11 EMERGENCY BYPASS OPERATION When the Emergency Bypass switch is in the Bypass position, the EBS will be enabled. With the Mode switch Emergency Bypass operation is used to override the Full Cool mode, following will occur controller, in the case of a controller malfunction, to keep simultaneously: the unit cooling.
  • Page 81 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 82 REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.3 UNIT RUNS BUT HAS INSUFFICIENT COOLING Abnormal pressures Abnormal temperatures 5.16 Abnormal currents 5.17 Controller malfunction Evaporator fan or motor defective 6.15 Refrigeration system Compressor service valves or liquid line shutoff valve Open valves partially closed completely Frost on coil...
  • Page 83 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 6.14 Frequent defrost Wet load Normal 5.7 ABNORMAL PRESSURES Condenser coil dirty 6.10 Condenser fan rotating backwards 6.11 Condenser fan inoperative...
  • Page 84 REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.10 NO EVAPORATOR AIR FLOW OR RESTRICTED AIR FLOW Frost on coil Evaporator coil blocked Dirty coil 6.14 Evaporator fan motor internal protector open 6.15 Evaporator fan motor(s) defective 6.15 No or partial evaporator air flow Evaporator fan(s) loose or defective 6.15 Evaporator fan contactor defective...
  • Page 85 REMEDY/ REFERENCE CONDITION POSSIBLE CAUSE SECTION 5.13 AUTOTRANSFORMER MALFUNCTION Circuit breaker (CB−1 or CB−2) tripped Check Autotransformer defective 6.22 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 WATER−COOLED CONDENSER OR WATER PRESSURE SWITCH Dirty coil High discharge pressure...
  • Page 86 (O ) for leak testing or operating the els covered within this manual. The manifold gauge/ product. hose set is available from Carrier Transicold. (Carrier Charge only with R−134a: Refrigerant must Transicold part number 07-00294-00, which includes conform AHRI Standard items 1 through 6, Figure 6−2.)
  • Page 87 6.3 SERVICE CONNECTIONS CAUTION The compressor suction, compressor discharge, and the liquid line service valves (see Figure 6−3) are pro- To prevent trapping liquid refrigerant in the vided with a double seat and an access valve which en- manifold gauge set be sure set is brought to ables servicing of the compressor and refrigerant lines.
  • Page 88 The pump is available from Carrier (see Figure 6−4). Be sure the service hoses are Transicold, (P/N 07-00176-11).
  • Page 89 c. Test the evacuation setup for leaks by backseating 6.7.1 Checking the Refrigerant Charge the unit service valves and drawing a deep vacuum NOTE with the vacuum pump and gauge valves open. Shut off the pump and check to see if the vacuum holds. Use a refrigerant recovery system whenever Repair leaks if necessary.
  • Page 90 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 91 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 92 6.10 CONDENSER COIL f. Install fan loosely on motor shaft (hub side in). DO NOT USE FORCE. If necessary, tap the hub only, not The condenser coil consists of a series of parallel cop- the hub nuts or bolts. Install venturi. Apply “Loctite H” per tubes expanded into copper fins.
  • Page 93 NOTE WARNING When Oakite Compound No. 32 is used for the first time, the local Oakite Technical Service Oakite No. 32 is an acid. Be sure that the representative should called acid is slowly added to the water. DO NOT suggestions in planning the procedure.
  • Page 94 7. The time required for de-scaling will vary, depending What You Can Do For Further Help: upon the extent of the deposits. One way to deter- Contact the Engineering and Service Department of the mine when de-scaling has been completed is to OAKITE PRODUCTS CO., 675 Central Avenue, New titrate the solution periodically, using titrating equip- Providence, NJ 07974 U.S.A.
  • Page 95 6.14.2 Evaporator Heater Replacement The heaters are wired directly back to the contactor and if a heater failure occurs during a trip, the heater set containing that heater may be disconnected at the contactor. The next Pre-trip (P1) will detect that a heater set has been disconnected and indicate that the failed heater should be replaced.
  • Page 96 (Tri−Pow’r® HD) for the unit. This will assist in helping to remove the corrosive fumigation chemicals and dislodging of the corrosive elements. This cleaner is available from the Carrier Transicold Performance Parts Group (PPG) and can be ordered through any of the PPG locations; Part Number NU4371−88.
  • Page 97 Prior to Cleaning: 6.17.1 Replacing Electronic Expansion Valve and Screen − Always wear goggles, gloves and work boots. a. Removing an EEV 1. Pump down the compressor (refer to paragraph 6.4) − Avoid contact with skin and clothing, and avoid and frontseat both suction and discharge valves.
  • Page 98 6.18 ECONOMIZER SOLENOID VALVE 6.19 ECONOMIZER EXPANSION VALVE The economizer expansion valve (see Figure 2−4) is an automatic device that maintains constant superheat of the refrigerant gas leaving at the point of bulb attach- ment, regardless of suction pressure. Unless the valve is defective, it seldom requires main- tenance other than periodic inspection to ensure that the thermal bulb is tightly secured to the suction line and wrapped with insulating compound.
  • Page 99 6. VALVE REMOVAL: The preferred method of remov- ing the valve is to cut the connection between the brazed section and the valve, using a small tube cut- ter. Remove valve. Alternately, use a wet rag to keep valve cool. Heat in- let and outlet connections to valve body and remove valve.

  • Page 100: Table 6−1 Valve Override Control Displays

    6.21 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 101 Make sure the 460 VAC (yellow) power cable is handling and removal of a module. plugged into the receptacle (see Figure 6−15) 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 102 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” when the software loading has com- pleted. (If a problem occurs while loading the soft- ware: the display will blink the message “Pro FAIL”...
  • Page 103 6.23.3.2 Programming Procedure for Software Ver- 8. The display module will go blank briefly and then dis- sions 5350 and Greater & With Updated play “551 00”, based on the operational software Menu Option (menu0111.ml) installed. 9. Press the UP or DOWN ARROW key to scroll The updated menu option allows the operational soft- through the list to obtain the proper model dash num- ware to be loaded, and time and container identification...

  • Page 104: Temperature Sensor Service

    6.23.4 Removing and Installing a Controller d. Using Driver Bit, Carrier Transicold part number 07−00418−00, remove the 4 screws securing the dis- a. Removal: play module to the control box. Disconnect the ribbon cable and set the display module aside.

  • Page 105: Table 6−2 Sensor Resistance

    Table 6−2 Sensor Resistance Sensors AMBS, DTS, ETS, RRS, RTS, SRS, STS °F Ohms °F Ohms °F Ohms °F Ohms −40 −40 336,500 −7.8 49,060 24.4 10,250 56.7 2,809 −38.9 −38 312,600 −6.7 46,230 25.6 9,760 57.8 2,697 −37.8 −36 290,600 −5.6 43,580...

  • Page 106: 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 107: Sensor Replacement

    6.24.2 Sensor Replacement g. If required, slide the cap and grommet assembly onto the replacement sensor. a. Turn unit power OFF and disconnect power supply. h. Slip crimp fittings over dressed wires (keeping wire NOTE colors together). Make sure wires are pushed into Include white date code label when cutting out crimp fittings as far as possible and crimp with crimp- and removing defective sensors.
  • Page 108 (2.5”) Supply Air Stream Gasket Mounting Plate Insulation Gasketed Support Plate Back Panel Gasketed Cover Supply Sensor TIR Bolts Mounting Clamp STS Probe Sensor Wires SRS Probe Drip Loop Figure 6−19 Supply Sensor Positioning 1.00 in. 1.50 in. (25.4cm) (38.1cm) 1.
  • Page 109 Sensor, CPDS open). This can occur if the vent is loose or the panel is defective. To confirm a defective panel, assure that the To replace the Compressor Discharge Temperature wing nut is secure and then power cycle the unit. If the Sensor, see Figure 6−22: alarm immediately reappears as active, the panel should be replaced.

  • Page 110: Eautofresh Service

    12 volts. b. To check with a SMA−12 portable stepper drive test- er. The SMA−12 portable stepper drive tester (Carrier e. Repeat for pins C and D (wires 2A and 2B). Transicold P/N 07−00375−00) is a battery operated f.

  • Page 111: Checking The Controller

    C and D sembly from the rear of the panel. can be checked as follows: h. Install a jumper assembly (Carrier part number e. Mount the replacement motor cup assembly in the 07−00408−00) to connect the drive module and con- panel using original screws.
  • Page 112 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 6−25 Motor Cup Replacement T-340 6−27...

  • Page 113: Electronic Partlow Temperature Recorder

    6.27 ELECTRONIC PARTLOW TEMPERATURE period is less than thirty days, the recorder will retrieve RECORDER the logged data from the DataCORDER for the power off period and record it onto the chart. Thereafter, the The microprocessor−based temperature recorder is recorder will resume normal temperature recording. designed to interface with the DataCORDER to log temperature with time.

  • Page 114: Maintenance Of Painted Surfaces

    Communication Interface Module (CIM) have the itself to the correct temperature reading. required wiring installed. If the unit is not factory provi- sioned, a provision wiring kit (Carrier Transicold part For Electronic Partlow Recorder CTD part number number 76-00685-00) must be installed. Installation in- 12-00464-xx structions are packaged with the kit.

  • Page 115: 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 116: 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 117: Electrical Wiring Schematics

    SECTION 7 ELECTRICAL WIRING SCHEMATICS 7.1 INTRODUCTION This section contains the Electrical Schematics and Wiring Diagrams. The diagrams are presented as follows: Figure 7−1 provides the legend for use with Figure 7−2, the schematic diagram for standard refrigeration units. Figure 7−2 provides the basic schematic diagram for standard refrigeration units. Figure 7−3 provides the legend for use with Figure 7−4, the schematic diagram for units with available options except Vent Positioning System, eAutoFresh and Emergency Bypass.
  • Page 118 LEGEND SYMBOL DESCRIPTION SYMBOL DESCRIPTION AMBS AMBIENT SENSOR (C−21) HEATER CONTACTOR (P−4, M−13) CONTROLLER (J−19) HUMIDITY SENSOR (F−21) CIRCUIT BREAKER − 460 VOLT (F−1) HEAT TERMINATION THERMOSTAT (G−13) CONDENSER FAN CONTACTOR (M−11, P−6) INTERROGATOR CONNECTOR FRONT (T−21) COMPRESSOR CONTACTOR (M−7, P−1) INTERROGATOR CONNECTOR REAR (T−22) COMMUNICATIONS INTERFACE MODULE (OPTION) INTERNAL PROTECTOR (E−12, H−10, H−12)
  • Page 119 Based on Drawing 62−11271 Rev A Figure 7−2 SCHEMATIC DIAGRAM − Standard Unit Configuration T-340 7−3...
  • Page 120 LEGEND SYMBOL DESCRIPTION SYMBOL DESCRIPTION AMBS AMBIENT SENSOR (C−21) HIGH PRESSURE SWITCH (G−7) CONTROLLER (J−19) HEATER CONTACTOR (P−4, P−5, M−13) CIRCUIT BREAKER − 460 VOLT (H−1) HUMIDITY SENSOR (OPTIONAL) (F−21) OPTIONAL CIRCUIT BREAKER − DVM (OPTION) HEAT TERMINATION THERMOSTAT (G−13) (C−1) TERMINAL BLOCK WHEN CB2 NOT PRESENT INTERROGATOR CONNECTOR FRONT (T−21) CONDENSER FAN CONTACTOR (M−7, M−8, P−1)
  • Page 121 see Figure 7−7 for VPS Based on Drawings 62−66721 and 62−11271 Rev A Figure 7−4 SCHEMATIC DIAGRAM − Configuration Includes Available Options (Except Vent Positioning System, eAutoFresh, Emergency Bypass Options) T-340 7−5...
  • Page 122 LEGEND SYMBOL DESCRIPTION SYMBOL DESCRIPTION EAUTOFRESH STEPPER MOTOR (OPTION) (J−18) HIGH PRESSURE SWITCH (F−10) AMBS AMBIENT SENSOR (C−22) HEATER CONTACTOR (P−4, M−16) BYPASS MODULE (OPTION) (R−18) HUMIDITY SENSOR (OPTIONAL) (F−22) CONTROLLER (J−19) HEAT TERMINATION THERMOSTAT (F−16) CIRCUIT BREAKER − 460 VOLT (F−1) INTERROGATOR CONNECTOR FRONT (T−22) OPTIONAL CIRCUIT BREAKER −...
  • Page 123 see Figure 7−4 for optional heater and 3−ph condenser fan motor arrangements see Figure 7−7 for VPS Based on Drawing 62−11418 Rev A Figure 7−6 SCHEMATIC DIAGRAM − Configuration Includes eAutoFresh and Emergency Bypass Options T-340 7−7...
  • Page 124 (SEE NOTE) (SEE NOTE) NOTE: DEPENDING ON CONFIGURATION: − VPS 2 MAY BE CONNECTED TO L1 OR T1 − PTC MAY BE INSTALLED Figure 7−7 SCHEMATIC AND WIRING DIAGRAM − Upper Vent Position Sensor (VPS) Option T-340 7−8...
  • Page 125 Figure 7−8 SCHEMATIC AND WIRING DIAGRAM − Lower Vent Position Sensor (VPS) Option T-340 7−9...
  • Page 126 Figure 7−9 UNIT WIRING DIAGRAM − Standard Unit Configuration with 3−Phase Condenser Fan Motors (Sheet 1 of 2) T-340 7−10...
  • Page 127 Based on Drawing 62−11271 Rev A Figure 7−9 UNIT WIRING DIAGRAM − Standard Unit Configuration with 3−Phase Condenser Fan Motors (Sheet 2 of 2) T-340 7−11...
  • Page 128 Figure 7−10 UNIT WIRING DIAGRAM − Configuration Includes Single Phase Condenser Fan Motor and Optional Heater Arrangement (Sheet 1 of 2) T-340 7−12...
  • Page 129 Based on Drawing 62−66721 Figure 7−10 UNIT WIRING DIAGRAM − Configuration Includes Single Phase Condenser Fan Motor and Optional Heater Arrangement (Sheet 2 of 2) T-340 7−13...
  • Page 130 Figure 7−11 UNIT WIRING DIAGRAM − Configuration Includes eAutoFresh and Emergency Bypass Options (Sheet 1 of 2) T-340 7−14...
  • Page 131 Based on Drawing 62−11418 Rev A Figure 7−11 UNIT WIRING DIAGRAM − Configuration Includes eAutoFresh and Emergency Bypass Options (Sheet 2 of 2) T-340 7−15...
  • Page 132 INDEX Controller, 1−2, 3−3 CONTROLLER ALARM INDICATIONS, 3−29 Adjusting Fresh Air Makeup, 4−1 Controller Alarms, 3−12 Air−Cooled Condenser Description, 2−4 Controller Alarm Codes, 3−29 Alarm Code, 3−29 Controller Configuration Codes, 3−19 Alarm Indications, 3−29 CONTROLLER FUNCTION CODES, 3−20 Alarm Troubleshooting Sequence, 3−28 CONTROLLER PRE−TRIP TEST CODES, 3−37 Aluminum oxide, 6−11 Controller Service, 6−16...
  • Page 133 INDEX (Continued) eAutoFresh, 1−2 General Unit Description, 2−1 eAutoFresh Modes of Operation, 4−3 Generator Protection, 3−11 eAutoFresh Operation, 4−3 Gutters, 1−2 eAutoFresh Pre−Trip Inspection, 4−3 eAutoFresh Service, 6−25 eAutoFresh Start−Up Procedure, 4−3 Economized Operation, Refrigeration Circuit, 2−10 Handles, 1−2 Economizer Expansion Valve Service, 6−13 Heat Lockout, 3−4, 3−7 Economizer Solenoid Valve Service, 6−13 Heater Service, 6−9...
  • Page 134 INDEX (Continued) Operational Software (Cd Function Codes), 3−4 Safety and Protective Devices, 2−9 Option Descriptions, 1−1 Sensor, Compressor Discharge Temperature, 6−24 SERVICE CONNECTIONS, 6−2 Standard Operation, Refrigeration Circuit, 2−10 Start up − Compressor Bump Start, 3−4 Painted Surfaces Maintenance, 6−29 Perishable Dehumidification, 3−5 Start up −...
  • Page 135 INDEX (Continued) Valve Override Controls, 6−15 07−00176−11, 6−3 Vent Position Sensor, 4−3 07−00277−00, 6−16 VENT POSITION SENSOR (VPS), 6−24 07−00294−00, 6−1 07−00304−00, 6−16 09−00128−00, 6−29 09−00128−01, 6−29 Water Cooling, 1−2 Water−Cooled Condenser Description, 2−5 Water−Cooled Condenser Service, 6−7 Wiring Schematic, 7−1 76−00685−00, 6−29 T-340 Index−4...
  • Page 136 Carrier Transicold Division, Carrier Corporation P.O. Box 4805 Syracuse, N.Y. 13221 U.S A www.carrier.transicold.com A member of the United Technologies Corporation family. Stock symbol UTX...

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