Carrier 69NT40-489-100 Series Operation And Service Manual
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Carrier 69NT40-489-100 Series Operation And Service Manual

Carrier 69NT40-489-100 Series Operation And Service Manual

Everfresh controlled atmosphere. container refrigeration units
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Container Refrigeration
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OPERATION AND SERVICE
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EverFresh Controlled Atmosphere
69NT40-489-100 Series
Container Refrigeration Units
T−305 Rev C

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Summary of Contents for Carrier 69NT40-489-100 Series

  • Page 1 Container Refrigeration OPERATION AND SERVICE EverFresh Controlled Atmosphere 69NT40-489-100 Series Container Refrigeration Units T−305 Rev C...
  • Page 3 OPERATION & SERVICE MANUAL CONTAINER REFRIGERATION UNIT EVERFRESH CONTROLLED ATMOSPHERE MODEL 69NT40-489-100 Series ©Carrier Corporation, 2018 D Printed in U. S. A. January 2018...

  • Page 5: Safety Summary

    Before entering containers which are equipped with CA systems, the oxygen content must be increased to normal (21%) by ventilation. Carrier Transicold containers using the CA option are equipped with: 1. Hazard labels on the front of the unit. 2. Hazard labels near the evaporator access panels. Hazard labels on the evaporator motor mounting bracket.

  • Page 6: Controlled Atmosphere (Ca) Safe Container Entry

    CONTROLLED ATMOSPHERE (CA) SAFE CONTAINER ENTRY Entry into a CA equipped container must be performed by a (minimum) two person team. The operator will be the person performing the required procedures and that person is to be supervised by someone who is familiar with the required procedures.

  • Page 7: Entering Container In An Emergency

    ENTERING CONTAINER IN AN EMERGENCY In case of a power failure to the unit, there is no emergency provision to unlock the automatic door interlock system: DANGER WHEN OVERRIDING THE CA CONTROLLER, THE OPERATOR MUST BE AWARE OF THE IMMEDIATE DANGER OF UNCONSCIOUSNESS AND DEATH.

  • Page 8: Precautions For Handling Compressed Gas

    PRECAUTIONS FOR HANDLING COMPRESSED GAS Chemical safety goggles or a full face shield shall be used while handling cylinders of compressed gas. If the unit is being supplied with nitrogen or carbon dioxide, all nonessential persons shall be prohibited from being in or entering the container space while this procedure is taking place.
  • Page 9 WARNING WARNING Never fill a refrigerant cylinder beyond its When starting the unit, be sure that all rated capacity. Cylinder may rupture due to manual refrigerant valves in the discharge excessive pressure when exposed to high line are open. Severe damage could occur temperatures.

  • Page 10: General Safety Notices

    GENERAL SAFETY NOTICES The following general safety notices supplement the specific danger, warning and caution hazard labels appearing elsewhere in this manual. They are recommended precautions that must be understood and applied during operation and maintenance of the equipment covered herein. The general safety notices are presented in the following three sections labeled: First Aid, Operating Precautions and Maintenance Precautions.

  • Page 11: Specific Danger, Warning And Caution Statements

    SPECIFIC DANGER, WARNING AND CAUTION STATEMENTS The statements listed below are applicable to the refrigeration unit and appear elsewhere in this manual. These recommended precautions must be understood and applied during operation and maintenance of the equipment covered herein. WARNING WARNING Before disassembly of any external com- Beware of unannounced starting of the...
  • Page 12 SPECIFIC WARNING AND CAUTION STATEMENTS - - Continued WARNING CAUTION Make sure power to the unit is OFF and When a failure occurs during automatic testing power plug disconnected before removing the unit will suspend operation awaiting opera- capacitor(s). tor intervention. WARNING CAUTION With power OFF discharge the capacitor...
  • Page 13 The unit must be OFF whenever a program- ming card is inserted or removed from the con- CAUTION troller programming port. Use only Carrier Transicold approved Polyol CAUTION Ester Oil (POE) -- Castrol-Icematic SW20 com- pressor oil with R-134a. Buy in quantities of one quart or smaller.
  • Page 14 T-305 Safety--10...
  • Page 15 FOREWORD The Model 69NT40--489--100 Series (100 through 199) units are basic Carrier Transicold ThinLine container refrigeration units which are equipped with the Carrier Transicold EverFresh controlled atmosphere system. The EverFresh system provides continuous, precise management of the gases surrounding the cargo. Coverage of the...

  • Page 16: Table Of Contents

    TABLE OF CONTENTS PARAGRAPH NUMBER Page SAFETY SUMMARY ............Safety- - 1 CONTROLLED ATMOSPHERE (CA) SAFETY CONSIDERATIONS .
  • Page 17 TABLE OF CONTENTS - - Continued PARAGRAPH NUMBER Page REFRIGERATION CONTROLLER SOFTWARE ......... . 3.2.1 Configuration Software (Configuration Variables) .
  • Page 18 TABLE OF CONTENTS - - Continued PARAGRAPH NUMBER Page CONNECT REMOTE MONITORING RECEPTACLE ........STARTING AND STOPPING INSTRUCTIONS .
  • Page 19 TABLE OF CONTENTS - - Continued PARAGRAPH NUMBER Page EVACUATION AND DEHYDRATION ........... . 6.6.1 General .
  • Page 20 TABLE OF CONTENTS - - Continued PARAGRAPH NUMBER Page 6.21 REFRIGERATION CONTROLLER ............6.21.1 Handling Controller .
  • Page 21 TABLE OF CONTENTS - - Continued PARAGRAPH NUMBER Page CA PRE-TRIP DIAGNOSTICS ............9.2.1 Pre-Trip .
  • Page 22 LIST OF ILLUSTRATIONS FIGURE NUMBER Page Figure A. Emergency Bypass for the Door Interlock System ........Safety--3 Figure 1.
  • Page 23 LIST OF ILLUSTRATIONS FIGURE NUMBER Page Figure 44. Suction Modulation Valve (SMV) ............Figure 45.
  • Page 24 LIST OF ILLUSTRATIONS FIGURE NUMBER Page Figure 87. Schematic Diagram -- Humidity ............Figure 88.

  • Page 25: Part One - - Refrigeration Unit

    18 and 24 volts, single phase. The unit may be fitted with suction and discharge pressure gauges or suction and discharge transducers The controller is a Carrier Transicold Micro-Link 2i or no pressure readout. The transducer readings may microprocessor.
  • Page 26 1.3.21 Controlled Atmosphere 1.3.12 Autotransformer All units covered in this manual are fitted with the Carrier Transicold EverFresh controlled atmosphere system. An autotransformer may be provided to allow operation This system includes an air compressor, membrane on 190/230, 3phase, 50/60 hertz power. The...
  • Page 27 1.3.27 Labels 1.3.30 Stepper Drive Operating Instruction and Function Code listing labels All the units covered by this manual have suction will differ depending on the options installed. For modulating valves which act to control system capacity. example, additional operating instructions are required Units indicated as being fitted with “stepper drive”...
  • Page 28 T-305...

  • Page 29: Description

    SECTION 2 DESCRIPTION 2.1 GENERAL DESCRIPTION heaters. The unit model number, serial number and parts identification number can be found on the serial 2.1.1 Refrigeration Unit - - Front Section plate to the left of the compressor. The unit is designed so that the majority of the 2.1.2 Upper Fresh Air Makeup Vent components are accessible from the front, see Figure 1.

  • Page 30: Evaporator Section

    2.1.3 Evaporator Section The evaporator fans circulate air through the container by pulling it in the top of the unit, directing it through the The evaporator section (Figure 2) contains the return air evaporator coil, where it is heated or cooled, and temperature sensor, thermostatic expansion valve, discharging it at the bottom.

  • Page 31: Compressor Section

    2.1.4 Compressor Section modulating valve stepper motor drive, discharge pressure regulator valve discharge/suction The compressor section includes the compressor (with pressure transducers. high pressure switch), power cable storage The supply temperature sensor, supply recorder sensor compartment, and autotransformer and ambient sensor are located at the right side of the This section also contains the suction modulation valve, compressor.

  • Page 32: Air Cooled Condenser Section

    2.1.5 Air Cooled Condenser Section line valve, filter-drier, condenser pressure transducer and fusible plug. The air cooled condenser section (Figure 4) consists of The condenser fan pulls air in the bottom of the coil and the condenser fan, condenser coil, receiver with sight it is discharged horizontally out through the condenser glass/moisture indicator, quench valve, manual liquid fan grille.

  • Page 33: Water-Cooled Condenser Section

    2.1.6 Water-Cooled Condenser Section quench expansion valve, rupture disc, condenser pressure transducer, filter-drier, water couplings and water-cooled condenser section (Figure 5) water pressure switch. The water-cooled condenser consists of a water-cooled condenser, sight glass, replaces the standard unit receiver. Sight Glass Liquid Line Service Valve Water-Cooled Condenser Moisture-Liquid Indicator...

  • Page 34: Control Box Section

    2.1.7 Control Box Section 2.1.8 Communications Interface Module The control box (Figure 6) includes the manual The communications interface module is a slave operation switches, circuit breaker (CB-1), compressor, module which allow communication with a master fan and heater contactors, control power transformer, central monitoring station.

  • Page 35: Refrigeration System Data

    2.2 REFRIGERATION SYSTEM DATA Number of Cylinders Model 06DR Weight (Dry) 118 kg (260 lb) a. Compressor/Motor Approved Oil Castrol Icematic -- SW20 Assembly Oil Charge 3.6 liters (7.6 U.S. pints) The oil level range, with the compressor off, Oil Sight Glass should be between the bottom and one-eighth level of the sight glass.

  • Page 36: Electrical Data

    2.3 ELECTRICAL DATA CB-1 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 17.6 amps @ 460 vac b. Compressor Full Load Amps (FLA) Motor (with current limiting set at 21 amps) 380 vac, Single Phase, 460 vac, Single Phase, 50 hz...

  • Page 37: Safety And Protective Devices

    Orange wire Power Red wire Output Brown wire Ground Input voltage 5 vdc Output voltage 0 to 3.3 vdc i. Humidity Sensor Output voltage readings verses relative humidity (RH) percentage: 0.99 V 1.65 V 2.31 V 2.97 V j. Controller Setpoint Range --30 to +30 _C (--22 to +86 _F) 2.4 SAFETY AND PROTECTIVE DEVICES...

  • Page 38: Refrigeration Circuit

    2.5 REFRIGERATION CIRCUIT outlet. The valve maintains a constant superheat at the coil outlet regardless of load conditions. Starting at the compressor, (see Figure 7, upper During periods of low load, the suction modulating valve schematic) the suction gas is compressed to a higher decreases flow of refrigerant to the compressor.

  • Page 39: Figure 7. Refrigeration Circuit Schematic

    1. Suction Service Valve 2. Suction Pressure Transducer 3. Discharge Pressure Transducer 4. High Pressure Switch 5. Discharge Service Valve 6. Discharge Pressure Regulator Valve 7. Air--Cooled Condenser 8. Evaporator 9. Thermostatic Expansion Valve 10. External Equalizer Line 11. Thermostatic Expansion Valve Bulb 12.
  • Page 40 T-305...

  • Page 41: Microprocessor

    SECTION 3 MICROPROCESSOR 3.1 TEMPERATURE CONTROL MICROPRO- temperature control software begins with section 3.2. CESSOR SYSTEM Coverage of the DataCORDER software is provided in section 3.6. The temperature control Micro-Link 2i microprocessor system (see Figure 8) consists of a key pad, display The key pad and display module serve to provide user module, control module (controller) and interconnecting access and readouts for both of the controller functions,...

  • Page 42: Key Pad

    3.1.1 Key Pad will flash if dehumidification or humidification is en- The key pad (Figure 9) is mounted on the right-hand side abled. of the control box. The key pad consists of eleven push 6. Return -- Yellow LED: Energized when the return air button switches.

  • Page 43: Controller

    1. Mounting Screw 5. Fuses 8. Battery Pack 2. Micro-Link 2i Controller 6. Control Circuit Power Connection 3. Connectors . (Location: In back of controller) 7. Software Programming Port 4. Test Points Figure 11. Micro-Link 2i Controller 3.1.3 Controller tion, heater operation, probe calibration, pressure limiting and current limiting settings.

  • Page 44: Modes Of Operation

    3.3 MODES OF OPERATION 3.3.6 Condenser Pressure Control When configuration variable CnF14 is set to “In” the condenser pressure control logic is activated to The Operational Software responds to various inputs. maintain discharge pressures above 130 psig in low These inputs come from the temperature and pressure temperature ambients.

  • Page 45: Perishable Mode -- Economy

    Opening the modulating valve reduces the temperature (0.4_F) below the set point. The compressor will not restart until the temperature rises to 0.2_C (0.4_F) of the evaporator coil surface, which increases the rate above the set point and three minutes have elapsed at which water is condensed from the passing air.

  • Page 46: Temperature Control -- Frozen Mode

    3.3.12 Temperature Control - - Frozen Mode 3.4 CONTROLLER ALARMS Alarm display is an independent refrigeration controller With configuration variable CnF26 set to --10_C the software function. If an operating parameter is outside frozen mode of operation is active with set points at or of expected range or a components does not return the below --10_C (+14_F).

  • Page 47: Datacorder

    CA Controller Configuration Change also fitted with interrogation connections (See Figure 8, CA Nitrogen Test page 17) which may be used with the Carrier Transicold CA Controller Service Activity Data Reader to down load data. A personal computer with Carrier Transicold Data View software may also be CA Controller Software Upgrade used to download data and configure settings.

  • Page 48: Sensor Configuration (Dcf02)

    b. Configuration Software standard configurations. seven standard configuration variables, with their descriptions, are The configuration software controls the recording and listed in Table 4, page 25. alarm functions of the DataCORDER. Reprogramming to the factory installed configuration is achieved via the The six thermistor inputs (supply, return, USDA #1, #2, same configuration card as the unit control module #3 and cargo probe) and the humidity sensor input will...

  • Page 49: Table 4. Datacorder Standard Configurations

    A list of the data points available for recording follows. Changing the Table 4. DataCORDER Standard Configurations configuration to generic and selecting which data points to record may be done using the Carrier Transicold Data Standard Retrieval Program. Description Config.

  • Page 50: Figure 12. Standard Configuration Report

    Figure 12. Standard Configuration Report T-305...

  • Page 51: Logging Interval (Dcf03)

    3.6.4 Logging Interval (dCF03) 4. Real Time Clock demand: If the DataCORDER is equipped with a charged battery pack and AC power is The user may configure four time intervals between not present, the DataCORDER will power up when the data recordings.

  • Page 52: Usda Cold Treatment

    These units have the ability to maintain supply air temperature within one-quarter The Carrier Transicold Data Reader (see Figure 13) is a degree Celsius of setpoint and record minute changes simple to operate hand held device designed to extract...

  • Page 53: Datacorder Alarms

    c. Install the DataCORDER module battery pack (if not 3.6.13 DataCORDER Alarms already installed). Alarm display is an independent DataCORDER function. If an operating parameter is outside of the expected range or a component does not return the d. Place the three probes. The probes are placed into correct signals back to the DataCORDER an alarm is the pulp of the fruit (at the locations defined in the fol- generated.

  • Page 54: Table 5. Controller Configuration Variables

    Table 5. Controller Configuration Variables CONFIGURATION TITLE DEFAULT OPTION NUMBER CnF01 Bypass Valve Enable CnF02 Evaporator Fan Speed dS (Dual) SS (Single) CnF03 Control Sensors FOUr duAL CnF04 Dehumidification Mode CnF05 Reserved for future use ---------- CnF06 Condenser Fan Speed Select OFF (Single) On (Variable) CnF07...

  • Page 55: Table 6. Controller Function Codes

    Table 6. Controller Function Codes (Sheet 1 of 4) Code TITLE DESCRIPTION Note: If the function is not applicable, the display will read “-- -- -- -- -- ” Display Only Functions Displays the SMV percent open. The right display reads 100% when the valve is Suction Modulation Cd01 fully open and 0% when the valve is fully closed.
  • Page 56 Table 6 Controller Function Codes (Sheet 2 of 4) Cd22 Compressor Speed The status of the compressor is displayed (high, low or off). Cd23 Evaporator Fan Displays the current evaporator fan state (high, low or off). Controlled Cd24 Not used in this application Atmosphere State Compressor Run This code displays the time remaining until the unit goes into defrost (in tenths of...
  • Page 57 Table 6 Controller Function Codes (Sheet 3 of 4) The stagger start offset time is the amount of time that the unit will delay at start- Stagger Start Offset up, thus allowing multiple units to stagger their control initiation when all units are Cd31 Time (Seconds) powered up together.
  • Page 58 Table 6 Controller Function Codes (Sheet 4 of 4) Display Only Functions - - Continued Code Cd38 will display the current secondary supply temperature sensor reading Secondary Supply for units configured for four probes. If the unit is configured with a DataCORDER, Cd38 Temperature Sensor Cd38 will display “-- -- -- -- -- .”...

  • Page 59: Table 7 Controller Alarm Indications

    Table 7 Controller Alarm Indications (Sheet 1 of 3) Code TITLE DESCRIPTION Alarm 11 is applicable to units with Single Evaporator Fan Capability (CnF32 set Evaporator Motor 1 AL11 to 1EFO) only. The alarm is triggered if the evaporator fan motor #1 internal pro- IP Trip tector opens.
  • Page 60 Table 7 Controller Alarm Indications (Sheet 2 of 3) Alarm 53 is caused by the battery pack charge being too low to provide sufficient power for battery-backed recording. Renew replaceable batteries. If this alarm AL53 Battery Pack Failure occurs on start up, allow a unit fitted with rechargeable batteries to operate for up to 24 hours to charge rechargeable batteries sufficiently to deactivate the alarm Alarm 54 is activated by an invalid primary supply temperature sensor reading that is sensed outside the range of --50 to +70_C (--58_F to +158_F) or if the...
  • Page 61 Table 7 Controller Alarm Indications (Sheet 3 of 3) Alarm 64 is triggered if the discharge temperature sensed is greater than 135_C Discharge Tempera- AL64 (275_F) for three continuous minutes, if it exceeds 149_C (300_F), or if the sen- ture Over Limit sor is out of range.

  • Page 62: Table 8 Temperature Controller Pre-Trip Test Codes

    Table 8 Temperature Controller Pre-Trip Test Codes (Sheet 1 of 4) Code TITLE DESCRIPTION NOTE “Auto” or “Auto1” menu includes the: P, P1, P2, P3, P4, P5, P6 and rSLts. “Auto2” menu in- cludes P, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10 and rSLts.“Auto3 menu includes P, P1, P2, P3, P4, P5, P6, P7, P8 and rSLts All lights and display segments will be energized for five seconds at the start of Pre-Trip Initiated...
  • Page 63 Table 8 Temperature Controller Pre-Trip Test Codes (Sheet 2 of 4) Requirements: For units equipped with secondary supply probe only. Pass/Fail Criteria: The temperature difference between primary and secondary probe (supply) is compared. P5-1 Supply Probe Test NOTE If this test fails, “P5-1” and FAIL will be displayed. If both Probe tests (this and the SUPPLY/ RETURN TEST) pass, because of the multiple tests, the display will read ’P 5’...
  • Page 64 Table 8 Temperature Controller Pre-Trip Test Codes (Sheet 3 of 4) Note, this test is skipped if the unit does NOT have: A compressor discharge sensor (CPDS). A discharge pressure transducer (DPT). Condenser pressure transducer (CPT). In addition, this test is skipped if: The sensed ambient temperature is less than 7_C (45_F).
  • Page 65 Table 8 Temperature Controller Pre-Trip Test Codes (Sheet 4 of 4) Requirements: Test P8-1 must pass for this test to execute. Setup: The left display will read “P8-2,” and the right display will show the supply air temperature. A 60 minute timer is started. The unit will be required to main- tain the 0°C temperature to within + or -- 0.5_C (0.9_F) of set point until a Data- CORDER recording is executed.

  • Page 66: Table 9 Datacorder Function Code Assignments

    Table 9 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...

  • Page 67: Table 10 Datacorder Pre-Trip Result Records

    Table 10 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 68: Table 11 Datacorder Alarm Indications

    Table 11 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 a fault with this sensor.

  • Page 69: Operation

    SECTION 4 OPERATION 4.1 INSPECTION (Before Starting) 4.2.1 Connection To 380/460 vac Power 1. Make sure start-stop switch (ST, on control panel) WARNING and circuit breaker (CB-1, in the control box) are in position “0” (OFF). 2. Plug the 460 vac (yellow) cable into a de-energized Beware of unannounced starting of the 380/460 vac, 3-phase power source.

  • Page 70: Connect Water-Cooled Condenser

    fan motor will stop and remain stopped until the CFS clear the gap between the slots, loosen the wing nut until the disc clears the stop. Figure 15 gives air exchange switch is set to position ”I.” values for an empty container. Higher values can be expected for a fully loaded container.

  • Page 71: Complete Inspection

    NOTE 1. Depress the ALT MODE key and scroll to Code dC30. 1. Prior to starting tests, verify that unit voltage (Function Code Cd 07) is within 2. Depress and hold the ENTER key for five seconds. tolerance unit amperage draw (Function Codes Cd04, Cd05, Cd06) is 3.

  • Page 72: Observe Unit Operation

    a. Probe Diagnostic Logic -- Standard c. TO RUN AN INDIVIDUAL TEST: Scroll through the selections by pressing the UP ARROW or DOWN If the probe check option (controller configuration code ARROW keys to display an individual test code. CnF31) is configured for standard, the criteria used for Pressing ENTER when the desired test code is dis- comparison between the primary and secondary played.

  • Page 73: Figure 16. Controller Operation -- Perishable Mode

    FALLING RISING TEMPERATURE TEMPERATURE +2.5 C (4.5 +1.5 C (2.7 MODULATING MODULATING C (1.8 COOLING COOLING +0.5 C (0.9 +.20 SET POINT AIR CIRCULATION ONLY - -0.20 AIR CIRCULATION - - 0.5 C (0.9 - -1 C (1.8 HEATING HEATING - - 1.5 C (2.7 Figure 16.

  • Page 74: Sequence Of Operation - - Perishable Mode Cooling

    f. The evaporator fan motors continue to run to circulate ENERGIZED air throughout the container. The in-range light re- DE- -ENERGIZED CONTROL TRANSFORMER FOR FULL DIAGRAM AND mains illuminated as long as the supply air is within LEGEND, SEE SECTION 13 tolerance of set point.

  • Page 75: Sequence Of Operation -- Defrost Mode

    1. The manual defrost switch (MDS) is closed by the 2. In temperature ambients user. condenser fan will be cycled by the controller to maintain proper condensing 2. The user sends a defrost request by communica- pressure. tions. 3. The defrost interval timer (controller function code a.

  • Page 76: Emergency Operation

    a. Provide power to the compressor contactor with the When a defrost has terminated, the defrost interval timer will begin counting when the reading at the Defrost high pressure switch and compressor motor internal Temperature Sensor is at or below 10°C(50°F). Once protector in line.

  • Page 77: Troubleshooting

    SECTION 5 TROUBLESHOOTING NOTE This troubleshooting chart is to be used for refrigeration troubleshooting only, for Controlled Atmosphere troubleshooting refer to Section 11, page 115. 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...

  • Page 78: Unit Runs But Has Insufficient Cooling

    REMEDY/ CONDITION POSSIBLE CAUSE REFERENCE SECTION 5.3 UNIT RUNS BUT HAS INSUFFICIENT COOLING Compressor Compressor valves defective 6.8, page 61 Abnormal pressures 5.7, page 55 Controller malfunction 5.9, page 55 Evaporator fan or motor defective 6.16, page 70 Refrigeration System Suction modulation valve malfunction 6.18, page 71 Condenser Pressure Transducer defective...

  • Page 79: Abnormal Pressures (Cooling)

    REMEDY/ CONDITION POSSIBLE CAUSE REFERENCE SECTION 5.6 UNIT WILL NOT DEFROST PROPERLY - -Continued Heater contactor or coil defective Replace Initiates but does not defrost Heater(s) burned out 6.15, page 70 Frequent defrost Wet load Normal Will not terminate defrost Unit in Emergency Defrost mode 4.11.2, page 52 5.7 ABNORMAL PRESSURES (COOLING)

  • Page 80: No Evaporator Air Flow Or Restricted Air Flow

    REMEDY/ CONDITION POSSIBLE CAUSE REFERENCE SECTION 5.10 NO EVAPORATOR AIR FLOW OR RESTRICTED AIR FLOW Frost on coil 5.6, page 54 Evaporator coil blocked Dirty coil 6.15, page 70 Evaporator fan motor internal protector open 6.16, page 70 Evaporator fan motor(s) defective 6.16, page 70 No or partial evaporator air flow Evaporator fan(s) loose or defective...

  • Page 81: Service

    SECTION 6 SERVICE NOTE To avoid damage to the earth’s ozone layer, use a refrigerant recovery system whenever removing refriger- ant. When working with refrigerants you must comply with all local government environmental laws. In the U.S.A., refer to EPA section 608. DANGER HAZARDOUS ATMOSPHERE INSIDE.

  • Page 82: Figure 24. R-134A Manifold Gage/Hose Set

    Carrier Transicold. 3. Turn the high side field service coupling knob (red) (Carrier Transicold P/N 07-00294-00, which includes clockwise, which will open the high side of the sys- items 1 through 6, Figure 24, page 58.) To perform tem to the gauge set.

  • Page 83: Pumping The Unit Down

    If a vacuum is indicated, emit refrigerant by gauge. (The pump is available from Carrier Trans- cracking the liquid line valve momentarily to build up a icold, P/N 07-00176-11.) slight positive pressure.

  • Page 84: Procedure - Partial System

    6.7 REFRIGERANT CHARGE 6.7.1 Checking the Refrigerant Charge NOTE To avoid damage to the earth’s ozone layer, use a refrigerant recovery system whenever remov- ing refrigerant. When working with refrigerants you must comply with all local government envi- ronmental laws. In the U.S.A., refer to EPA sec- tion 608.

  • Page 85: Compressor

    e. Partially frontseat (turn clockwise) the suction service valve and slowly add charge until the refrigerant appears at the proper level. 6.8 COMPRESSOR WARNING Make sure power to the unit is OFF and power plug disconnected before replacing the compressor. NOTES The compressor should not operate in a vacuum greater than 500 mm/hg (20...

  • Page 86: Compressor Disassembly

    6.8.2 Compressor Disassembly WARNING Before disassembly of any external com- pressor component make sure to relieve possible internal pressure by loosening the bolts and tapping the component with a soft hammer to break the seal. 1. Oil Pressure Relief 3. Oil Suction Tube Valve 4.

  • Page 87: Figure 30. Oil Pump And Bearing Head

    h. Be very careful not to damage the motor windings Set screw must be removed. when removing the motor end cover (see Figure 32), as the cover fits over the winding coils. Loosen the cap screws, break the seal and then remove all caps- crews except one in the top of the cover.

  • Page 88: Compressor Reassembly

    difficult to reinstall used valves so that they will seat as before removal. Any valve wear will cause leakage. 1. Equalizer Tube and 3. Counterweight -- Lock Screw Assembly Motor End 2. Lockwasher Figure 33. Equalizing Tube and Lock Screw Assembly 1.

  • Page 89: Installing The Components

    Place rods so that the chamfered side will be against Use only Carrier Transicold approved radius of crankpins. Install the crankshaft and thrust washer through the pump end of the compressor. En- Polyol Ester Oil (POE) - - Castrol-Icematic sure thrust washer is fitted on locating pin.

  • Page 90: High Pressure Switch

    e. Close valve on cylinder and open bleed-off valve. d. Removing Oil from the Compressor f. Open cylinder valve. Slowly close bleed-off valve to 1 If the oil level is above one-eighth sight glass, oil increase pressure on switch. The switch should open must be removed from the compressor.

  • Page 91: Water Cooled Condenser Cleaning

    e. Close and secure condenser fan screen guard. 4. Acid proof pump and containers or bottles with rub- ber hose. f. Apply power to unit and check fan rotation. If fan Summary of Procedure: motor rotates backward, reverse wire numbers 5 and a.

  • Page 92: Filter-Drier

    Vent Fill condenser with clean- Centrifugal pump Close vent pipe 30 GPM at 35’ head ing solution. Do not add Globe valve when pump solution more rapidly than valves Priming is running. vent can exhaust gases connection caused by chemical Pump action.

  • Page 93: Checking Superheat

    g. Subtract the saturation temperatures determined in Unless the valve is defective, it seldom requires maintenance other than periodic inspection to ensure step f. from the temperatures measured in step e. The that the thermal bulb is tightly secured to the suction line difference is the superheat of the suction gas.

  • Page 94: Evaporator Coil And Heater

    in the OFF position, and that the power plug and cable 2. Remove cushion clamps located on the inlet and out- let lines. are disconnected. 3. Unbraze the equalizer connection (1/4”), the outlet b. Remove the lower access panel (Figure 1, page 5) by connection (5/8”) and then the inlet connection removing the T.I.R.

  • Page 95: Evaporator Fan Motor Capacitors

    6.17 EVAPORATOR FAN MOTOR CAPACITORS failed to hold their microfarad ratings, or those that are breaking down internally during operation. It is also Units are equipped with one of 2 types of evaporator fan useful in identifying capacitors when their microfarad motors, single, and dual capacitor.

  • Page 96: Checking The Stepper Valve

    NEW drive module in reverse order. b. Checking with SMA-12 portable stepper drive tester 6.18.4 Checking The Controller The SMA-12 portable stepper drive tester (Carrier Turn the unit OFF. Transicold P/N 07-00375-00) is a battery operated stepper drive which will open and close the SMV, which b.

  • Page 97: Emergency Repair Procedures

    The following procedure can be used to perform a on pins “C” and “D” can be checked as follows: functional check: 1. Install a jumper assembly (Carrier part number a. Install a high pressure gauge at the discharge service 07--00408--00) to connect the drive module and con- valve.

  • Page 98: Autotransformer

    (WP) contact is open or closed. controller. TP 4 a. Obtain a grounding wrist strap (Carrier Transicold This test point enables the user to check if the internal part number 07-00304--00)and a static dissipation protector for the condenser fan motor(IP-CM) is open or mat (Carrier Transicold part number 07-00304--00.

  • Page 99: Controller Programming Procedure

    TP 9 2. Insert the programming card, for Configuration Soft- ware, into the programming/software port. (See This test point is the chassis (unit frame) ground Figure 46.) connection. 3. Turn unit ON using start-stop switch (ST). TP 10 4. The Display module will show “489” on the left LCD This test point enables the user to check if the heat display and “###”...

  • Page 100: Sensor Replacement

    insulated container (of sufficient size to completely c. If required, prepare the replacement sensor by cut- immerse bulb) with ice cubes or chipped ice, then fill- ting sensor wire(s) back 40 mm (1-1/2 inch). For three ing voids between ice with water and agitating until wire sensors the black wire should be cut at the mixture reaches 0_C (32_F) measured on a labora- middle length and the red/white wire cut to the shorter...

  • Page 101: Sensor Re-Installation

    This procedure provides instructions for repair of the Reinstall the return sensor as shown in Figure 50, page Carrier Transicold composite control box. Damage to 77. For proper placement of the return sensor, be sure to the control box may be in the form of a chip or hole, a...

  • Page 102: Cracks

    An adhesive sealant must be used to make the repair watertight. The adhesive sealant (Sikaflex 221) is included in Crack Repair Kit Carrier Transicold part number 76-00724-00SV (refer to Table 13, page 79). Do not use an acetone based silicone sealant (Which can be identified by a vinegar--like odor).

  • Page 103: Table 13. Crack, Chip & Hole Repair Kit

    Static Mixing Tube (Loctite 983440) 07--00390--00 . . . Instruction Sheet 98--02338--00 Note: Insert repair procedures require use of an Application Gun, Carrier part number 07--00391--00 (Loctite 983435) Table 15. Drill Information Item Insert part number Drill size and depth 34- 06231- 01 10.3 mm x 17.8 mm deep (.404 in.

  • Page 104: Figure 52. Insert Locations

    Figure 52. Insert Locations T-305...

  • Page 105: Communications Interface Module Installation

    6.25 COMMUNICATIONS INTERFACE MODULE Table 16. Recommended Bolt Torque Values INSTALLATION BOLT DIA. THREADS TORQUE FREE SPINNING 5.2 in-lbs 0.05 9.6 in-lbs 0.11 20 in-lbs 0.23 23 in-lbs 0.26 75 in-lbs 0.86 5/16 11 ft-lbs 1.52 20 ft-lbs 2.76 7/16 31 ft-lbs 4.28 43 ft-lbs...

  • Page 106: Table 17. Wear Limits For Compressors

    1. The capacitors are located on the unit sidewall terminals and observe the meter needle. If the capacitor above the evaporator fan deck, and may be is good, the needle will make a rapid swing toward zero removed by two methods: resistance and then gradually swing back toward a very high resistance reading.

  • Page 107: Table 18. Compressor Torque Values

    Table 18. Compressor Torque Values TORQUE RANGE SIZE USAGE DIAMETER THREADS ft-lb (inches) PER INCH 1/16 27 (pipe) 8 -- 12 1.11 -- 1.66 Pipe Plug -- Crankshaft 20 (pipe) 6 -- 10 0.83 -- 1.38 Oil Return Check Valve -- Crankcase 20 (pipe) 20 -- 25 2.77 -- 3.46...

  • Page 108: Table 19. R-134A Temperature - Pressure Chart

    Table 19. R-134a Temperature - Pressure Chart Temperature Vacuum Temperature Pressure “/hg cm/hg kg/cm@ psig kg/cm@ --40 --40 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 --30 --34 32.8 24.64 0.33...

  • Page 109: Figure 54. R-134A Compressor Pressure And Motor Current Curves Versus Ambient Temperature

    Note: Curves to be used as troubleshooting guide only for model series 69NT40 with fresh air makeup vent closed, unit powered on 460 VAC/60hz and SMV 100% open. (Bar) psig (22.0) (20.7) (19.3) (17.9) 35_F (1.7_C) (16.6) (15.2) (13.8) (12.4) (11.0) (9.7) (8.3)

  • Page 110: Figure 54. R-134A Compressor Pressure And Motor Current Curves Versus Ambient Temperature

    (Bar) psig (.97) (.83) (.69) (.55) 35_F (1.7_C) Box (.41) (.28) (.14) 0_F (--17.8_C) Box - -2 (- -.14) (- -.28) - -4 (- -.41) - -6 (48.9) (_C) (15.6) (21.1) (26.7) (32.2) (37.8) (43.3) Ambient Air Temperature Compressor Suction Pressure Versus Ambient Air Temperature at Stable Box Temperature 35_F (1.7_C) Box 0_F (--17.8_C) Box (_C)

  • Page 111: Part Two - - Controlled Atmosphere System

    HAZARDOUS ATMOSPHERE INSIDE 18 and 24 volts AC) is supplied from the refrigeration system power. LOW OXYGEN INSIDE CONTAINER CAN CAUSE DEATH DANGER 7.1 INTRODUCTION Carrier Transicold Everfresh controlled LOW OXYGEN LEVELS INSIDE CONTAIN- atmosphere system extends cargo life and reduces ER.
  • Page 112 T-305...

  • Page 113: Description

    SECTION 8 DESCRIPTION 8.1 GENERAL DESCRIPTION Functions of the various ports are: Pressurization/gauge ports are used to leak 8.1.1 CA Equipment Location - - front Section check the container by pressurizing with one Many of the Controlled Atmosphere (CA) components port and attaching a pressure gauge onto the are accessible from the front of the unit.

  • Page 114: Ca Components In The Refrigeration Evaporator Section

    8.1.3 CA Components in the Refrigeration the air temperature entering the nitrogen membrane Evaporator Section separator, and a nitrogen purity valve is used to control the flow of air through the nitrogen membrane The refrigeration evaporator section (see Figure 57 or separator.

  • Page 115: Figure 58. Controlled Atmosphere Components -- Evaporator Fan Deck Section

    To CO Sensor From CO Sensor SIDEWALL VIEW 1. Carbon Dioxide Sensor (COS) 8. Air Calibration Solenoid Valve (ASV) 2. Air Sample Outlet Tube 9. Gas Calibration Solenoid Valve (GSV) 3. Condensing Line 10.Nitrogen Sample Solenoid Valve (NSV) 4. Accumulator 11.Solenoid Manifold Valve Assembly (Includes items 7, 8, 9 &...

  • Page 116: Control Box

    8.1.4 Control Box suppressor, contactors, fuses, key pad, display module, and the CA Controller module. The control box (see Figure 59) includes a manual start-stop switch, air heater triac, voltage surge 1. Keypad 6. Voltage Surge Suppressor 2. Controlled Atmosphere Controller Module 7.

  • Page 117: Ca Components In The Refrigeration Condenser Section

    8.1.5 CA Components in the Refrigeration An air heater is used to warm the ambient air, and the Condenser Section high air temperature switch is used to protect the CA system from overheating. A membrane pressure The refrigeration condenser section (see Figure 60) transducer is used to monitor system performance contains an air filter assembly, air heater, membrane during normal operation and CA Pre-Trip.

  • Page 118: Container Rear Door Section

    8.1.6 Container Rear Door Section The container (See Figure 61) doors have a built-in safety feature called the door interlock system, which is used to prevent anyone from entering the container when there is a hazardous atmosphere present. Also, a pre-trip kit has been provided, one of its components (plastic curtain) is used to help prevent leakage through the rear doors.

  • Page 119: Controlled Atmosphere System Data

    8.2 CONTROLLED ATMOSPHERE SYSTEM DATA Number of Cylinders a. Air Compressor Type Three Phase Induction Weight 34 kg (75 lb) Pressure Relief (Breather) Valve (located in access panel with air intake filter, see Figure 56, page 89) Opens 52 mm (2 inch WG) Pressure Relief Valve (located upstream of the nitrogen membrane filter b.

  • Page 120: Controlled Atmosphere (Ca) Flow Circuit

    8.4 CONTROLLED ATMOSPHERE (CA) FLOW To decrease the amount of CO in the container, the CIRCUIT NPV is energized. When energized, the NPV introduces a higher flow rate of less-pure nitrogen that purges the Starting at the right-hand side access panel (see Item 1, excess CO .

  • Page 121: Figure 62. Controlled Atmosphere System -- Flow Circuit

    Outside Drain Water Drains Outside Container Unwanted Gases Nitrogen Discharged Discharged Inside Container Outside Container Air Discharged Inside Container Container Air Sample Carbon Dioxide Discharged Inside Container Pressure (Breather) Relief Valve Membrane Temperature Sensor (MTS) Air intake Filter Nitrogen Purity Solenoid Valve (NPV) Accumulator Air Sample Capillary Air Compressor Motor...

  • Page 122: Fresh Air Makeup Vent

    8.5 FRESH AIR MAKEUP VENT devices monitor the system operating conditions and open a set of electrical contacts when an unsafe The purpose of the vent is to provide ventilation for condition occurs. commodities that require fresh air circulation and must be closed when transporting frozen foods, or CA loads.

  • Page 123: Microprocessor

    The memory card automati- cally downloads new software to the CA Controller The Carrier Transicold CA module (identical to the ML2i Temperature Controller used in the refrigeration system when inserted, and controls output to the display of with the exception of the software) is a custom-designed programming status information.

  • Page 124: Ca Controller Programming (Memory) Card

    9.1.2 CA Controller Programming (Memory) Card push-energized membrane switches that act as the user interface with the CA Controller. The programming card is used for loading the software into the CA Controller. This is the same concept as using a floppy diskette to load software into a personal computer.

  • Page 125: Figure 65 Ca Controller Display Module

    The display module (see Figure 65) is mounted at a 20 TABLE 21 CA KEY PAD FUNCTION degree downward tilt to aid in visibility when stacked in FUNCTION close quarters. The display module consists of: Displays alarm list and clears the a.

  • Page 126: Ca Controller Function And Data Codes

    Table 21). For the display-only function codes, the right 9.1.4 CA Controller Function and Data Codes window will display the value of this item for five seconds There are functions which the operator may access to before returning to the normal display mode. If a longer examine the operating status of the unit.
  • Page 127 CODE TYPE TITLE DESCRIPTION Display/ Records total hours of air compressor run time. Hold the Cd16 Hours Since Compressor Service Reset ENTER key for five seconds to reset to “0”. Displays the number of hours that have elapsed since the Display/ membrane air filters were changed.

  • Page 128: Configuration Software (Configuration Variables)

    Table 23. CA Controller Configuration Variables CONFIGURATION NO. TITLE OPTIONS DEFAULT CnF01 Service Hour Meter Display Disable In, Out CnF02 Control Band 0.1 to 2% by 0.1% increments. 0.5% CnF03 Control Band 0.1 to 5% by 0.1% increments, or 0.5% Off.

  • Page 129: Table 24. Ca Controller Alarm Indications

    Table 24. CA Controller Alarm Indications CODE TITLE DESCRIPTION Alarm 30 is triggered by fuse (F3) opening, which causes software shutdown of all control units. This alarm will remain AL30 Control Contactor Fuse Open (24 vac) active until the 10 amp fuse is replaced. Alarm 31 is triggered by one of the fuses (F1 or F2) being AL31 Control Circuit Fuse Open (18 vac)

  • Page 130: Controller Ca Control

    CODE TITLE DESCRIPTION Alarm 41 is triggered by an unsuccessful calibration attempt. AL41 Gas Calibration Failure This alarm will remain active until a successful calibration is performed. Alarm 42 is triggered by an unsuccessful calibration attempt. AL42 Air Calibration Failure This alarm will remain active until a successful calibration is performed.

  • Page 131: Ca Pre-Trip Diagnostics

    a. Starting and Terminating Pre-Trip nitrogen is delivered to the cargo area of the container. In turn, Oxygen and other trace gases are discharged Pre-trip is initiated by pressing the PRE-TRIP key. This through the front of the unit, behind the CA controller, places the user into a test selection menu.
  • Page 132 If pre-trip was not executed since power up, then the right display will display “Auto”. The user may bottles of calibration gas are available from Carrier scroll through the test selection menu using the Transicold service parts, P/N 07-00322-01. If calibration ARROW keys.

  • Page 133: Pre-Trip Mode

    9.2.2 Pre-Trip Mode Table 25. Controlled Atmosphere Pre-Trip Test Codes NOTES Failure results in a single retry prior to the fail message if initiated from “Auto Pre-Trip”. The total time span of an “Auto Pre-Trip” runs from 39 to 79 minutes. CODE TITLE DESCRIPTION...
  • Page 134 Table 25. Controlled Atmosphere Pre-Trip Test Codes - - Continued CODE TITLE DESCRIPTION This test will attempt a zero-point calibration of the carbon dioxide sensor using Carbon Dioxide P4-0 the nitrogen stream, and will run for up to 10 minutes and 30 seconds. Zero Calibration Pass/Fail Criteria: Passes for a successful calibration.

  • Page 135: Operation

    SECTION 10 OPERATION 10.1 CONTROLLED ATMOSPHERE (CA) PRE-TRIP gauge (38 mm) to 1.0 inch water gauge (25 mm). The INSPECTION (Before Starting) acceptable time span is 105 seconds or more for a 40 foot container and 53 seconds or more for a 20 foot a.

  • Page 136: Start--Up Inspection

    NOTE P4-2 A CO sensor span check is performed (i.e., the sensor reading is checked against a calibration gas of The CA system will require up to 30 minutes for known CO content). If code 32 is set to OFF, test is warm-up.

  • Page 137: Controlled Atmosphere Set Point Selection

    10.6 CONTROLLED ATMOSPHERE SYSTEM OP- ber to the left. The user may then press the DOWN ARROW to repeat the test, the UP ARROW to skip to ERATION the next test or the PRE--TRIP key to terminate test- General operations for controlling the CO2 and O2 ing.

  • Page 138: Figure 66 Emergency Bypass For The Door Interlock System

    Venting the container when a power failure occurs 3 To enter the container, the interlock system must be (this procedure should only be used in emer- removed. To remove the system, remove the center gency situations) bolt from the catch or remove the four screws holding the interlock system to the container door.

  • Page 139: Troubleshooting

    SECTION 11 TROUBLESHOOTING NOTE This troubleshooting chart is to be used with Controlled Atmosphere sections only. REMEDY/ INDICATION/ POSSIBLE CAUSES REFERENCE TROUBLE SECTION 11.1 CONTROLLED ATMOSPHERE (CA) SYSTEM WILL NOT START External power source OFF Turn on No power to unit Start-Stop switch (CAS) OFF or defective Check/Replace Fuse blown (F3)
  • Page 140 11.2 CONTROLLED ATMOSPHERE (CA) SYSTEM MALFUNCTION - - CONTINUED Air compressor defective or leaking Check Compressor pressure regulating or relief valve leak Check CA system leak Check Pressure transducer reading Dirty air intake filter element Check (Low) Oxygen solenoid valve (OSV) defective Check Membrane filter elements dirty Check...

  • Page 141: Service

    SECTION 12 SERVICE WARNING Before servicing unit, make sure the start-stop switches (CAS & ST) are in the OFF position. Unit circuit breakers (CB-1 and CB-2) and external power sources are turned OFF and tagged to prevent accidental energizing of circuits. WARNING Low oxygen levels inside container, ventilate before entering.

  • Page 142: Air Compressor

    12.2 AIR COMPRESSOR 1. From inside the container: lower the upper panel in the refrigeration evaporator section and support the top grille with a spacer to gain more working area. WARNING 2. Cut the wire tie (item 7) and loosen the hose clamp (item 14).

  • Page 143: Figure 67. Typical Air Compressor

    1. Air Compressor 9. Flat Washer (0.320/0.330) 2. Power Plug 10. Locknut (5/16-18) 3. Tube Connection 11. Compressor Mounting Bracket 4. Screw (1/4-20 x 1-1/2 lg) 12. Bolt (3/8-16 x 1.00 lg) 5. Flat Washer (1/4) 13. Flat Washer (3/8) 6.

  • Page 144: Figure 69. Air Compressor (P/N 18--00052) Exploded View

    age. With a 1/2 inch drive impact wrench, maintain a semblies. Remove the square key and the motor straight alignment throughout the removal process. shaft spacer located at the rear of the motor shaft. This procedure will remove both piston and rod as- 1.

  • Page 145: Air Compressor Assembly (P/N 18--00052)

    12.4 AIR COMPRESSOR ASSEMBLY KEYWAY AS DAMAGE TO THE SHAFT MAY RE- (P/N 18- -00052) SULT. i. Install the four piston ring expanders, one in each of Prior to the assembly of the air compressor, make sure the piston ring grooves (two per piston). Position the that all parts are correct, clean, and free of oil, as this is expander gaps 180_ apart.

  • Page 146: Air Compressor Service (P/N 18--00099)

    12.5 AIR COMPRESSOR SERVICE 5. Use 3/16 Allen wrench to remove 8 socket head cap (P/N 18- -00099) screws ( Item 7 ) from cylinder flange. 6. Mark orientation at cylinder to crankcase to ease re-- Prior to the disassembly of the air compressor, follow assembly the steps in section 12.2.a for removal of the air compressor...
  • Page 147 5. Install one cylinder over piston and into crankcase. 3. Install o--rings into grooves on each side of the valve Remember to keep the same cylinder and cylinder plate. Lubricate each o--ring with small amount of sili- orientation from the removal step. cone lubricant.

  • Page 148: Figure 72 Puller Plate Positioning

    2. Inspect cylinder wear surface for scoring or 8. Rotate rods to an outward position. Remove retaining scratches. If scoring is present, replace cylinder. ring from end of motor shaft. Assembly: 1. Place new nuts and sleeves (nuts first) on manifold. 2.

  • Page 149: Figure 74 C--Stand Positioning

    6. Support motor shaft from back of motor. Install push- er over shaft and alignment pin and onto crankcase, secure with two screws. Figure 74 C- -Stand Positioning 3. Place C--stand on motor as shown in Figure 74. Place crankcase on top of stand, note proper crankcase ori- entation to motor.

  • Page 150: Figure 77. Air Compressor (P/N 18/00099) Exploded View

    16. Intake Valve 1. Tube, Filter 2. Tube, Clamp 17.Cylinder 3. Filter 18. O-Ring, Cylinder 4. Fitting, Tube 19. Shim 5. Reducing Bushing 20. Piston Assembly 6. Head Cap Bolt 21. Piston Ring 7. Head Bolt 22. Piston Seal 8. Elbow (tube) 23.

  • Page 151: Membrane Air Filter

    12.6 MEMBRANE AIR FILTER c. Removing the Membrane Air Filter 1. Swing open the controlled atmosphere control box a. Removing the Membrane Air Filter Element door. 1. Swing open the controlled atmosphere control box 2. Remove two bolts that attach the control box to the door.

  • Page 152: Air Sample Filter

    12.8 AIR SAMPLE FILTER 5. Remove the oxygen sensor from the oxygen sensor housing (item 2). WARNING b. Replacing the Oxygen Sensor 1. Install the oxygen sensor by reversing the above Low oxygen levels inside container. Venti- steps. late container before entering. Stay away 2.

  • Page 153: Nitrogen Membrane Separator

    a. Removing the Nitrogen Membrane Separator 1. Follow container venting procedures before perform- ing any maintenance on the nitrogen membrane sep- arator. 2. Remove bottom right-side panel (see Figure 82, page 130). Using a 1/8 inch drill bit and drill, remove the heads from the 12 rivets.

  • Page 154: Figure 82. Nitrogen Membrane Separator

    Evaporator Section - - Rear Panels Attached Evaporator Section - - Rear Panels Removed Side View 1. Top Grille 9. Nitrogen Membrane Separator 2. Upper Panel 10. Screws 3. Bottom Right-Side Panel 11. Membrane Mounting Bracket Assembly 4. Rivet 12. Insulation Caps 5.

  • Page 155: Container Curtain

    12.12 CONTAINER CURTAIN 3. Standing outside the container, start at the midpoint of the upper ribbon channel. Insert the curtain (poly sheet) and ribbon into the ribbon channel. Finish in- WARNING serting the curtain across the entire upper ribbon channel. Low oxygen levels inside container.

  • Page 156: Solenoid Valve

    12.13 SOLENOID VALVE or when service to the CA system requires handling and removal of the Controller. CAUTION Remove CA Controller module and unplug all wire harness connectors before per- forming any arc welding on any part of the container. Do not remove wire harnesses from module unless you are grounded to the unit frame with a static safe wrist strap.

  • Page 157: Programming Procedure

    12.14.1 Programming Procedure (2.) If a problem occurs while loading the software: the Display will blink the message “Pro FAIL” or To load new software into the module, the programming card is inserted into the programming/software port. “bad 12V”. (Turn refrigeration start-stop switch OFF and remove the card.) WARNING The control box must be OFF whenever a...

  • Page 158: Figure 84. Controlled Atmosphere Ml2I Control Box

    FRONT VIEW SIDE VIEW 1. Mounting Screw 4. Controller Software Port 2. Controller Module 5. Programming Card 3. Test Points Figure 84. Controlled Atmosphere ML2i Control Box T-305...

  • Page 159: Part Three -- Electrical Wiring Schematics And Diagrams

    PART THREE - - ELECTRICAL WIRING SCHEMATICS AND DIAGRAMS SECTION 13 REFRIGERATION CONTROLS 13.1 INTRODUCTION This section contains the refrigeration unit Schematics and Wiring Diagram. The diagrams are presented as follows: Figure 85 Provides the legend for use with all figures. Figure 86 Provides the schematic diagram.

  • Page 160: Figure 86. Schematic Diagram

    RRS (SINGLE SENSOR ONLY) (COMBINATION SENSOR ONLY) BASED ON DRAWINGS: 62- -01801 Rev A, 62- -10339 Rev A, 62- -10369 Rev - -, 62- -10535 Rev A, 62- -10541 Rev A, 62- -10576 Rev - -, 62- -01577 Rev - -, 62- -10638 Rev - -, 62- -10730 Rev - -, 62- -10733 Rev - - and 62- -10734 Rev - -, Figure 86.

  • Page 161: Figure 87. Schematic Diagram -- Humidity

    TR, See Figure 86 ST, See Figure 86 TC, SEE FIGURE 78 TC, See Figure 86 CB--1, See Figure 86 NatureFresh HUMIDITY MANAGEMENT SYSTEM Figure 87. Schematic Diagram - - Humidity T-305...

  • Page 162: Figure 88. Wiring Diagram

    COMBINATION SINGLE SENSOR SENSOR CONFIGURATION Figure 91 Figure 93 WIRES TO TR X2: HPRB,NSV6,HIMA,GRD, CHA2,EFA2,CIB1,HRA2, KA12,KA12,HPT5, ACA2 & DHH Figure 91 Figure 93 Figure 88. Wiring Diagram (Sheet 1 of 2) T-305...
  • Page 163 CFA1 SINGLE SENSOR ONLY Figure 88. Wiring Diagram - - (Sheet 2 of 2) T-305...
  • Page 164 T-305...

  • Page 165: Introduction

    SECTION 14 CONTROLLED ATMOSPHERE SYSTEM 14.1 INTRODUCTION This section contains the Electrical Schematic and Wiring Diagrams for the Controlled Atmosphere system. The diagrams are presented as follows: Figure 89 Provides the legend for use with all figures. Figure 90 Provides the schematic diagram. Figure 91 Provides the wiring diagram.

  • Page 166: Figure 89. Legend -- Ca

    CA LEGEND SYMBOL DESCRIPTION (Schematic Location) AIR COMPRESSOR CONTACTOR (E- -3, R- -1) AIR HEATER CONTACTOR (E- -8, R- -2) AIR HEATER TRIAC (SOLID STATE RELAY) (F- -8, F- -17) AHTR AIR HEATER (E- -11) AIR COMPRESSOR MOTOR (G- -3) AIR CALIBRATION SOLENOID VALVE (R- -9) CONTROLLED ATMOSPHERE START- -STOP SWITCH (B- -15) SENSOR (G- -28)

  • Page 167: Figure 90. Electrical Schematic -- Ca

    Based on drawings 62--10526 Rev -- and 62--10736 Rev --. Figure 90. Electrical Schematic - - CA T-305...
  • Page 168 ALTERNATE CONFIGURATION Figure 91. Electrical Wiring Diagram - - Controlled Atmosphere (Sheet 1 of 2) T-305...

  • Page 169: Figure 91. Electrical Wiring Diagram -- Controlled Atmosphere

    Figure 88 Figure 88 Figure 91. Electrical Wiring Diagram - - Controlled Atmosphere (Sheet 2 of 2) T-305...
  • Page 170 NOTE THE SCHEMATIC AND WIRING DIAGRAM PROVIDED ON THE FOLLOWING PAGES COVER UNITS THAT HAVE NOT BEEN MODIFIED TO INCLUDE THE NITROGEN PURITY SOLENOID VALVE. T-305...

  • Page 171: Figure 92. Electrical Schematic

    Based on drawing 62--10367 Rev -- Figure 92. Electrical Schematic nits not modified to include the N Purity Solenoid Valve.) T-305...
  • Page 172 Figure 93. Electrical Wiring Diagram (Sheet 1 of 2) nits not modified to include the N Purity Solenoid Valve.) T-305...

  • Page 173: Figure 93. Electrical Wiring Diagram

    Figure 88 Figure 88 Figure 93. Electrical Wiring Diagram (Sheet 1 of 2) nits not modified to include the N Purity Solenoid Valve.) T-305...
  • Page 174 T-305...
  • Page 175 INDEX DataCORDER, 23, 27, 46 AIR COMPRESSOR, 118, 121, 122 DataCORDER Software, 17, 23 Air Cooled Condenser, 8 DataReader, 28 AIR INTAKE FILTER, 127 DataView, 28 Alarm, 22, 27, 29, 35, 44 Defrost Interval, 20 Alarms, 104 Defrost Mode, 51 Arctic Mode, 20 Display Module, 18 Autotransformer, 74...
  • Page 176 INDEX (continued) Generator Protection, 20 Painted Surfaces, 77 Part Identification Number, 1 Perishable Mode, 50 Perishable Mode -- Conventional, 20 Heater, 70 Perishable Mode -- Dehumidification, 21 Heating Mode, 50 Perishable Mode -- Economy, 21 High Pressure Switch, 66 Port, Software Programming, 99 Power, 45 Pre--Trip, 22, 27, 38, 43, 47 Selection Menu, 107...
  • Page 177 INDEX (continued) Temperature Control, 20, 22 VALVE, SOLENOID, 132 Temperature Sensor, 75 Test Points, Controller, 99 Thermistor Format, 27 Water Cooled Condenser, 67 Torque Values, 81, 83 Water Pressure Switch, 46 Troubleshooting, 53, 115, 133 Water--Cooled Condenser , 9 Wear Limits, 82 Wiring Diagram, 144, 148, 149 Upper Fresh Air Makeup Vent, 5 WIRING DIAGRAM , 138...
  • Page 178 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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