1. Manuals
  2. Brands
  3. Carrier TRANSICOLD Manuals
  4. Automobile Accessories
  5. Supra Series
  6. Operation and service manual

Carrier TRANSICOLD Supra Series Operation And Service Manual

Truck refrigeration unit
Hide thumbs Also See for Supra Series:
Table of Contents

Advertisement

Quick Links

Download this manual
Operation and Service Manual
Supra Series
®
Truck Refrigeration Unit
®
62-11868 Rev L

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the Supra Series and is the answer not in the manual?

Questions and answers

Related Manuals for Carrier TRANSICOLD Supra Series

Summary of Contents for Carrier TRANSICOLD Supra Series

  • Page 1 Operation and Service Manual Supra Series ® Truck Refrigeration Unit ® 62-11868 Rev L...
  • Page 3 Operation and Service Manual Supra Series Truck Refrigeration Units © 2023 Carrier Corporation Printed in USA April 2023 ●...
  • Page 4 Manual Revision History: 62-11868 Date Reason for Release 10/11/16 Field Trial version released. 03/08/16 Added section 6.6.6.2 (Leak Check Using Pressurized Dry Nitrogen) 08/19/19 Section 3: Updated pre-trip test procedure tables per M. Broaddus input; updated cover page and other references to “S Series”, updated Table 3-4; Section 4: 4.4 (updated bullet points), 4.4.1 (corrected setpoint temps), Table 4-1 (added * to first line), 4.8.3 (updated sequencing), 4.9.1 (corrected setpoint temps), 4.10.1 (added Additional Overrides)

  • Page 5: Table Of Contents

    TABLE OF CONTENTS PARAGRAPH NUMBER PAGE SAFETY ................1–1 SAFETY PRECAUTIONS .
  • Page 6 OPERATION ............. . . 3–4 3.4.1 Lock and Unlock the Display .
  • Page 7 ALARM TROUBLESHOOTING ............5–1 ALARM DISPLAY .
  • Page 8 ........6–43 6.11.3 Upgrading Supra Series Software via TRU-Tech / TRU-View ....6–43 6.11.3 Configuration Table .

  • Page 9: Safety

    Safety Safety Precautions Your Carrier Transicold refrigeration unit has been designed with the safety of the operator in mind. During normal operation, all moving parts are fully enclosed to help prevent injury. During all pre-trip inspections, daily inspec- tions, and problem troubleshooting, you may be exposed to moving parts. Please stay clear of all moving parts when the unit is in operation and when the main power switch is not in the OFF position.

  • Page 10: Specific Warning, Caution, And Notice Statements

    Specific Warning, Caution, and Notice Statements To help identify the label hazards on the unit and explain the level of awareness each one carries, an explanation is given with the appropriate consequences: DANGER DANGER: Warns against an immediate hazard which WILL result in severe personal injury or death. WARNING WARNING: Warns against hazards or unsafe conditions which COULD result in severe personal injury or death.
  • Page 11 WARNING Units equipped with the APX control system may start automatically at any time the main power switch is not in the OFF position. Also, the unit may be fitted with 2-way communication equipment that will allow starting of the unit from a remote location even though the switch is in the OFF position.
  • Page 12 CAUTION Under no circumstances should anyone attempt to repair the logic or display boards. Should a problem develop with these components, contact your nearest Carrier Transicold dealer for replacement. CAUTION Use only ethylene glycol anti-freeze (with inhibitors) in system as glycol by itself will damage the cooling system.
  • Page 13 Unit uses R-404A / R-452A and POE oil. The use of inert gas brazing procedures is mandatory for all Carrier Transicold refrigeration units; otherwise compressor failure will occur. For more information, refer to technical procedure 98-50553-00 Inert Gas Brazing.

  • Page 14: Safety Decals

    Safety Decals Figure 1.1 Safety Label 62-61655-00 Figure 1.2 Refrigerant Label 62-03797-01 Figure 1.3 Refrigerant Label 62-60063-02 THIS UNIT IS CHARGED WITH 452 A WARNING SPECIAL CARE IS REQUIRED WHEN RECLAIMING R 452A PRIOR TO BRAZING WORK. REFER TO SERVICE PROCEDURE Figure 1.4 Safety Equipment Label 62-61398 62-11868...
  • Page 15 Figure 1.5 Sticker No Modifications 62-61774-00 Figure 1.6 R-404A Refrigerant with POE Oil Decal 62-04160-00 62-11868...
  • Page 16 Figure 1.7 R-404A Refrigerant Decal 62-04160-01 Figure 1.8 R-452A Refrigerant with POE Oil Decal 62-04160-02 Figure 1.9 R-452A Refrigerant Decal 62-04160-03 62-11868...

  • Page 17: Unit Description

    The unit may cycle the engine, standby motor or fans unexpectedly as control require- ments dictate. This manual contains operating data, electrical data and service instructions for the Carrier Transicold Supra Series model truck refrigeration units listed in Table 2–1.
  • Page 18 Figure 2.1 Main Components - Top View 1. Compressor 10. Receiver 2. Engine (Refer to 11. Filter Drier Table 2–1) 3. Alternator 12. Thermal Expansion Valve (TXV) 4. Muffler 13. Evaporator (Refer to for detail) Figure 2.2 5. Fuel Filter 14.
  • Page 19 Figure 2.2 Evaporator 1. Supply Air Sensor 4. Braze Plate Heat Exchanger 2. Liquid Line Check Valve 5. Evaporator Fan Motor (3) 3. Thermal Expansion Valve (TXV) 6. Return Air Sensor (RAS) - - - - - 62-11868...
  • Page 20 Figure 2.3 Control Box 5, 6 1. Phase Reversal Module 8. Evaporator Fan Motor Relay Board a) Motor Relay 2. High Voltage Fuse Holder b) Fuses F22 to F24 - refer to Table 2–3 3. Motor Contactor 1 9. Truck Power Control (TPC) 4.
  • Page 21 Table 2–3 Fuse Identification Fuse Designation Amps Power Source External Connection Required Fuses On TPC Board Main Fuse Battery PER Relay 12V Options SIOB Logic Power ENCU (12-00702) MCA Logic Power Fuel Heater (not used) PER Relay (F2) Automatic Phase Reversal PER Relay (F2) Evaporator Fan Relays 7.5A...

  • Page 22: General Description

    General Description The Supra Series models are self-contained, one-piece refrigeration/heating units designed for truck applications. The units consist of a condenser section, located outside the truck body, and an evaporator section, which extends inside the body. Two types of drives may be included.

  • Page 23: Alternator/Regulator

    2.3.2 Alternator/Regulator CAUTION Observe proper polarity when installing battery - negative battery terminal must be grounded. Reverse polarity will destroy the rectifier diodes in alternator. As a precautionary measure, dis- connect positive battery terminal when charging battery in unit. Connecting charger in reverse will destroy the rectifier diodes in alternator.
  • Page 24 Figure 2.4 Accumulator To compressor suction From evaporator Oil return orifice 2.3.4.3 3-Way Valve (HGS) The 3-way valve (HGS) directs flow of refrigerant through the system. With the solenoid coil de-ener- gized, the valve is in the cool mode (see 2.5) and the compressor discharge gas is delivered to Figure the condenser.

  • Page 25: Evaporator Section

    Figure 2.6 3-way Valve (HGS) Heat & Defrost Mode Solenoid Coil To Evaporator From Compressor 2.3.4.4 Filter Drier The drier is cylinder shell containing a drying agent and screen. It is installed in the liquid line and func- tions to keep the system clean and remove moisture from the refrigerant. A sight glass may also be installed downstream of the drier.

  • Page 26: Thermal Expansion Valve (Txv)

    2.4.1 Thermal Expansion Valve (TXV) The TXV is an automatic device which controls the flow of liquid to the evaporator according to changes in superheat to the refrigerant leaving the evaporator. The TXV maintains a relatively constant degree of superheat in the gas leaving the evaporator regardless of suction pressure. Thus, the valve has a dual function: automatic expansion control and prevention of liquid return to the compressor.

  • Page 27: Unit Specifications

    Unit Specifications 2.6.1 Engine Data Table 2–5 Engine Data Unit Specification Z482 Engine Model 29.2 in (479 cc) Displacement Number of Cylinders 8.5 hp (6.3 kW) @2400rpm Horsepower 117 lbs (53 kg) Weight 3.9 quarts (3.7 liters) Coolant Capacity 6.87 quarts (6.5 liters) Oil Capacity 1991 to 2133 psig (135 to 145 bars) Injection Setting...
  • Page 28 Table 2–6 Lube Oil Viscosity - North America T/T Outdoor Temperature Recommended Oils Below 32°F or 0°C 10W-30, 5W-40 (synthetic) Above 32°F or 0°C 10W-30, 5W-40 (synthetic), 15W-40 Ambient Temperature 10W30* 5W40* (synthetic) 15W40** *10W30 & 5W40 (synthetic) are recommended for ALL climates **15W40 is NOT recommended for climates <...

  • Page 29: Compressor Data

    2.6.2 Compressor Data Table 2–9 Compressor Data Unit Specification 05K02 - S6, S7, S8 12.2 in (200 cc) Displacement Number of Cylinders Number of Unloaders 4.0 pints (1.9 L) Oil Charge R-404A / R-452A Refrigerant 05K04 -S9, S10 24.4 in (400 cc) Displacement Number of Cylinders...

  • Page 30: Electrical Data

    2.6.4 Electrical Data 2.6.4.1 Evaporator Fan Motors Evaporator Fan Motor Operating Current Model Voltage Part Number (Amps) 54-00650 S6, S7, S8, S9 54-00668 2.6.4.2 Condenser Fan Motor Condenser fans are variable speed. The speed of the condenser fan will be determined by ambient air temperature, engine cooling temperature, and compressor head pressure.
  • Page 31 2.6.5 Torque Values Description ft-lb (Nm) Standby Motor Pulley 42 - 60.5 (57-62) Compressor Pulley 28 (38) Starter Connection 6.6 (9) Alternator Connection 7.4 - 17.7 (10.1 - 24) Components Inside Control Box Nut B+ 4.1 - 5 (5.6 - 6.8) Card Bracket 2.1 - 4.1 (2.9 - 5.6) Nut B...

  • Page 32: Safety Devices

    Safety Devices System components are protected from damage caused by unsafe operating conditions by automatically shutting down the unit when such conditions occur. This is accomplished by the safety devices listed in Table 2-10. Table 2–10 Safety Devices - Microprocessor Controller Unsafe Condition Safety Device Device Setting...

  • Page 33: Refrigerant Circuit

    Refrigerant Circuit 2.8.1 Cooling (See Figure 2.7) When cooling, the unit operates as a vapor compression refrigeration system. The main components of the system are the compressor, hot gas 3-way valve, condenser, thermostatic expansion valve and evaporator. • The compressor raises the pressure and temperature of the vapor, then forces it through the hot gas 3- way valve (HGS1), then into the condenser tubes.
  • Page 34 Figure 2.7 Refrigeration Circuit - Cooling 62-11868 2-18...
  • Page 35 Figure 2.8 Refrigeration Circuit - Heat and Defrost 2-19 62-11868...
  • Page 36 62-11868 2-20...

  • Page 37: Operation

    An optional RS232 communication port to communicate unit operating data to a mobile satellite transmit- ter. This information will then be relayed back to the office via a modem to a computer. • There are several protocols supported. Contact Carrier Transicold for a listing of approved third party communication companies.452A 62-11868...

  • Page 38: Microprocessor Configuration

    Figure 3.1 Cab Command 13 14 1. Alarm Key 13. Cool Mode 2. Defrost Key 14. Temperature control active 3. Unit Data Key 15. Heat Mode 4. Function Key 16. Defrost Mode Icon 5. Auto Start/Stop - Continuous Key 17. Road Mode Icon 6.

  • Page 39: Description Of Microprocessor Components

    Description of Microprocessor Components 3.3.1 Keypad The keypad (Figure 3.1) has 12 keys which allow the operator to initiate various functions, display operat- ing data, and change operating parameters. Arrow Keys and = (Enter) Key The Up and Down Arrow keys are pressed to modify (in increments or decrements) the displayed data.

  • Page 40: Digital Display

    Alarm Key Press and hold the Alarm key to show the alarms codes from latest alarm to first alarm. Both the alarm key and the Arrow keys can be used to go through the alarm code list. Pressing this key stops for 7 to 10 seconds the alarm buzzer on the Cab Command. Refer to for more information on Alarms.

  • Page 41: Pretrip Inspection

    3.4.2 Pre-Trip Inspection 2. Pre-Trip Inspection - Starting a. Start the unit in continuous run. Refer to 1. Pre-Trip Inspection - Before starting engine Section check the following points: 3.4.3. a. Drain water and sediment from fuel tank sump. 3. Pre-Trip Inspection - After starting engine check Then fill tank with diesel fuel.

  • Page 42: Starting The Unit - Road Operation

    3.4.3 Starting the Unit - Road Operation WARNING Under no circumstances should ether or any other starting aids be used to start engine. 1. Place the I/O Switch in the I position. Wait for the default display. 2. If the unit has been used previously in the Electric mode, press the Road/Electric key to enable Road mode.

  • Page 43: Starting The Unit - Electric Operation

    3.4.4 Starting the Unit - Electric Operation WARNING The power plug must be clean and dry before connecting to any power source. WARNING Do not attempt to connect or remove power plug or perform service and/or maintenance before the I/O Switch is in the O position. 1.

  • Page 44: Pretrip

    3.4.5 Pre-Trip Pre-Trip is a test sequence that the operator may initiate to check unit operation. When Pre-Trip is enabled, the unit will enter a test sequence to operate the unit in various operating modes. If a failure occurs during Pre-Trip, the microprocessor will generate an alarm. 1.
  • Page 45 Checks engine high speed RPM. An alarm will be generated if this test fails but, it will not abort the pre-trip. The Supra Series units have three engine speeds - Low, Medium, and High. Current unit conditions determine what speed the engine will be run. For this reason the high speed RPM range for this test is wider than the low speed range and is unit specific.
  • Page 46 Table 3–1 Pre-Trip Test Sequences (Total duration around 8 minutes) Test # Test Description Alarm if Abort Pre-Trip if fails fails Checks the Hot Gas Valve (HGV). The unit will be switched between cool and heat. The supply air temperature sensor (SAT) should vary more than 5.4⁰F (3⁰...

  • Page 47: Changing Setpoint

    3.4.6 Changing Setpoint Setpoints of -22° to +95°F (-30° to +35°C) may be entered via the keypad. 1. With the default screen showing on the display, press the Up or Down Arrow keys to bring the setpoint to the desired reading. The display will flash to indicate that the reading being displayed is a non- entered value.

  • Page 48: Start/Stop Operation

    3.4.7 Start/Stop Operation Auto-Start/Stop is provided to permit stopping/restarting of the diesel driven compressor as required. This gives the microprocessor automatic control of starting and stopping the diesel engine. The main function of Auto-Start/Stop is to shut off the engine at or near setpoint and then restart the engine when needed. Start- Stop operation is normally used for frozen loads.

  • Page 49: Continuous Run Operation

    3.4.8 Continuous Run Operation In the Continuous Run mode, the diesel engine will run continuously providing constant air flow and tem- perature control to the product. Continuous Run operation is normally used for perishable loads. 1 (Icon not visible when Continuous Run Mode active) 1.

  • Page 50: Defrost Cycle

    3.4.9 Defrost Cycle Defrost is an independent cycle overriding cooling and heating functions to de-ice the evaporator as required. Refer to for a more detailed description of the defrost cycle. Section 4.8 1. Check that the box temperature on the display is 44°F (6.8°C) or lower. 2.

  • Page 51: City Speed

    3.4.10 City Speed The City Speed key enables the City Speed mode of operation, in which the unit will only operate in medium speed. 1. Press the City Speed key to toggle between low speed only and normal operating mode. •...

  • Page 52: Function Change

    3.4.11 Function Change The Function Parameters control selected operating features of the unit. When multiple choices are avail- able, the display will show the function description on the left side with the corresponding function choice on the right side. A function parameter listing is provided in Table 3–3.
  • Page 53 Table 3–3 Functional Parameters Parameter Description Range PRETRIP Enable or disable Pre-Trip 0 - NO PRETRIP 1 - YES Default: NO TIMER Enable or disable Sleep mode. 0 - OFF SLEEP 1 - ON Default: OFF TEMP Restart temperature for perishable setpoints in S/S. 0.5°...
  • Page 54 Table 3–3 Functional Parameters (Continued) Defines how far away the active temperature must be away 4° to 18°F in 0.5° increments OVER from the setpoint before the minimum off time can be 2° to 10°C in 0.1° increments. overridden in start/stop mode for perishable setpoints. Default: 7°F (4°C) Special Note EMEAR Region: This parameter default is based...
  • Page 55 3.4.12 Unit Data The Unit Data key is used to display the unit operating data. This key, in conjunction with the Arrow keys and = (Enter) key, will allow the user to display the unit's operating data values (hour meters, battery volt- age, etc.).

  • Page 56: Unit Data

    3. The display will show the description of the input on the left side with the actual data on the right side. If the Arrow key is held for one second, the list will scroll at a rate of one item every 0.5 seconds. Once the end of the list is reached, the list will scroll back to the first entry.
  • Page 57 Table 3–4 Unit Data (Continued) DATA DEFINITION Compressor Suction Pressure (entering the compressor) CST*** Compressor Suction Temperature (entering the compressor) Percentage of SMV Valve Opening ENGINE ENCT Engine Coolant Temperature Diesel Engine Speed BATT Battery Volts DC Current Sensor displayed in amps Fuel Level Percentage.

  • Page 58: Alarm Buzzer & Reset

    Alarm Reset 1. Press the Alarm key to show the alarms codes from latest alarm to first alarm. 2. Press the Up and Down Arrow keys to scroll through the alarm code list until “ALARM RST” is displayed. While “ALARM RST” is displayed, press the = (Enter) key to clear the alarm list. “ALARM CLR” will be displayed for 10 seconds.

  • Page 59: Standby Operation Guidelines

    Standby Operation Guidelines For safe, reliable operation in Standby mode, it is important to follow a few guidelines: 3.5.1 NATT 1. Never plug the unit into the power source with the main switch in the RUN (I) position. The main switch should always be in the STOP (O) position when connecting the unit to the power source.
  • Page 60 62-11868 3-24...

  • Page 61: Control Logic And Temperature Control

    SECTION 4 Control Logic and Temperature Control NOTE If the unit is in an alarm condition, the control system alarm response may override the operation described herein. If an alarm is displayed in the Message Center, refer to the specific alarm descrip- tion in Section 5 Alarm Troubleshooting.

  • Page 62: Engine Control

    Engine Control The ENCU begins controlling the fuel solenoid and engine speed when power is supplied to ENCU-22 from TPC- 13. Actual speed control is done using CAN feedback on ENCU-24 and ENCU-23. Figure 4.1 Auto Start Sequence 0 to 30 Seconds First Attempt...

  • Page 63: Engine Start-Up Sequence

    4.3.1 Engine Start-Up Sequence On command to perform a Start-Up, the main microprocessor will supply power from TPC-19 to the fuel pump (FP) and from TPC-21 to ENCU-44. This signals the ENCU that engine operation is required. The control system will then enter the engine start sequence. During the start sequence, the engine is operated in high speed.

  • Page 64: Pull Down/Pull Up

    4.4.1 Pull Down/Pull Up While in Pull Down or Pull Up, depending on the configuration setting, the refrigeration system will operate in medium speed if the setpoints are above 20°F (-7°C). If the setpoints are below 20°F (-7°C), the refriger- ation system will operate in high speed.

  • Page 65: Temperature Control

    Temperature Control 4.5.1 Temperature Determination The control system monitors the temperature readings from the supply and return temperature sensors to determine the mode of operation required to maintain compartment temperature in accordance with the setpoint. The sensor used for temperature control is dependent on the selection made in the TEMP CONTROL Functional Parameter.

  • Page 66: Restart Parameters

    • The compartment temperature requirement is satisfied. In Start-Stop Operation, the refrigeration system will operate in Pull Down or Pull Up Mode in order to reach the shutdown condition as quickly as possible. Shutdown will be allowed when the compartment temperature is within 0.5°F (0.3°C) of setpoint, for opera- tion in the Perishable Range.

  • Page 67: Start-Stop Operating Sequence

    4.6.4 Start-Stop Operating Sequence The operating sequence for Start-Stop Operation under the default Configuration and Functional Parame- ter settings is provided in Figure 4.2. Figure 4.2 Start-Stop Default Operating Sequence Falling Refrigerated Temperature Switch Point Pull Down +2.0°C (+3.6°F) +0.3°C (+0.5°F) Start-Stop Setpoint Setpoint...

  • Page 68: Continuous Operation

    Continuous Operation • In Continuous Operation, the unit will not shutdown except in response to a shutdown alarm. Temperature control in the compartment will operate under Pull down, Pull up, Cooling and Heating. • Continuous Operation is normally used for fresh produce and other sensitive product loads. The Start-Stop/ Continuous key is pressed to switch between Continuous Operation and Start-Stop Operation.
  • Page 69 Figure 4.3 Continuous Default Operating Sequence Falling Refrigerated Temperature Switch Point Pull Down +2.0°C (+3.6°F) +1.8°C (+3.2°F) Medium Speed +1.5°C (+2.7°F) +1.3°C (+2.3°F) Low Speed +0.8°C (+1.5°F) Heating or Cooling Setpoint Setpoint as Requried -0.8°C (-1.5°F) -1.0°C (-1.8°F) Low Speed -1.3°C (-2.3°F) -1.5°C (-2.7°F) -1.8°C (-3.2°F)

  • Page 70: Defrost

    Defrost Defrost is an independent cycle overriding cooling and heating functions in order to de-ice the evaporator. When the unit enters Defrost, the Message Center will display ‘dF’ for the entire cycle. When the unit is in cycle, ‘DEFROST’ is displayed in the Operator Message panel, along with the setpoint. Defrost is allowed when the Defrost Termination Temperature (DTT) is less than 44°F (6.8°C) or the Return Air Temperature (RAT) is less than 45.0°F (7.2°C).

  • Page 71: User Selected Override Operation

    User Selected Override Operation An optional software override program is available to the user. This program includes FreshProtect. Information on how the unit operates under this program is provided in the following section. 4.9.1 FreshProtect Supply Air Limit Control FreshProtect operates when all of the following conditions are present: •...
  • Page 72 4.10.2 Temperature Range Lock 1 and 2 Range Lock is a group of configurations which may be set to lock the unit into Start-Stop or Continuous Operation for various setpoint ranges. Two ranges are available for selection. Each range can be independently set to lock setpoint temperatures into either Start-Stop or Continuous operation.
  • Page 73 Figure 4.5 Range Lock Settings - Overlapping Range 1 always has priority when Range 1 & 2 overlap Range 1 is set for 32 to 42 F Range 2 is set for -22 to (0 to 5.6 C) 89.6 F (-30 to 32 C) Set for Continuous Set for Start-Stop Range 2...
  • Page 74 62-11868 4-14...

  • Page 75: Alarm Troubleshooting

    SECTION 5 Alarm Troubleshooting WARNING APX Control equipped units may start automatically at any time the main power switch is not in the OFF position. Also, the unit may be fitted with two-way communication equipment that will allow starting of the unit from a remote location even though the switch is in the OFF position. WARNING Be aware of HIGH VOLTAGE supplied at the power plug.
  • Page 76 00001 Low Fuel Level Warning • Trigger-on Condition:  The Low Fuel Level is configured to YES and run relay is energized and low fuel level input = low level for 30 seconds and not cranking the engine. OR, if the Low Fuel Level is to YES fuel level <= 15% for 30 seconds and run relay is energized and not cranking the engine.
  • Page 77 00011 Low Oil Pressure • Trigger-on Condition: The system is in Diesel Engine mode AND if Alarm 00041 (Engine Stalled) is NOT active and the oil pres- sure switch = low pressure for five seconds while the engine is running and not cranking. •...
  • Page 78 00012 High Coolant Temperature • Trigger-on Condition:  The system is in Diesel Engine mode AND the coolant temperature sensor alarm is NOT active while the engine is running and any of the following conditions occur with NO oil pressure failures present: Ambient temperature is >...
  • Page 79 6. Check engine cooling system: a. Compare actual engine temperature to the Unit Data reading. Temperature must be within + 20°F (+11.1°C). b. Test operation of engine coolant thermostat. Must operate correctly. c. Check water pump operation. Verify there is no seepage at weep hole, the bearings are tight and quiet, and the impeller is firmly attached to shaft.
  • Page 80 00013 High Discharge Pressure • Trigger-on Condition:  The Compressor High Discharge pressure switch is outside limits while not cranking the engine and the Stop/Run Switch is ON. High Pressure must be sensed for 3 seconds consecutively. The high pressure switch is cut out (open) 32. +/- 0.7 bar (465 +/- 10 psig). The high pressure switch is cut in (close) 24 +/- 0.7 bar (350 +/- 10 psig).
  • Page 81 00015 High Battery Voltage Check • Trigger-on Condition:  Battery voltage > 17 VDC. • Control Response:  Required shutdown. • Trigger-off Condition:  If battery voltage is between 11 and 14 VDC. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 82 00016 Low Battery Voltage Check • Trigger-on Condition:  Battery voltage < 10 VDC for two seconds while not cranking the engine and manual mode is not active. • Control Response:  Required shutdown. If activated while starting, this is an alarm condition only. Do not crank the engine if the battery voltage is still low.
  • Page 83 00017 High Discharge Temperature • Trigger-on Condition:  If the Discharge Temperature Sensor Alarm is not active AND any of the following conditions are met: • Ambient temperature < 120°F (48.9°C) and discharge temperature > 310°F (164°C) for three minutes. •...
  • Page 84 7. If alarm occurred during defrost, check DTT: a. Visually inspect the mounting of DTT. Must be mounted tightly to the tube sheet, with the center screw properly torqued. b. Using a service (test) thermometer, check temperature of the evaporator tube sheet at DTS location and compare with the data list.
  • Page 85 3. Check system pressures: Install manifold gauge set, and check and compare compressor discharge and suction pressures with those shown in Unit Data. • Suction pressure must be above 3 psig (0.2 bar). • Suction and discharge pressures readings must be the same on the gauges and Unit Data. NOTE Compressor suction pressure (CSP) reading has a maximum value of 100 psig (7.5 bars).
  • Page 86 00020 Maximum Compressor Alarms • Trigger-on Condition:  Alarms 00013 (High Pressure), 00017 (Discharge Temperature), 00018 (Low Pressure Shutdown), 00027 (High Suction Pressure), 00028 (Low Delta Pressure Refrigeration System), or 00029 (Check Heat Cycle) individually occur three times within the last two hours of engine running time. This alarm is enabled by con- figuring the Compressor Alarm Shutdown to YES and installing the Test 6 Option.
  • Page 87 00021 Technician Reset Required • Trigger-on Condition:  Alarms 00011 (Low Oil Pressure), 00012 (High Coolant Temperature), 00129 (Coolant Temp Sensor Check), 02006 (Started Output Fault) or 03002 (Clutch Slip). Alarms 11, 12 and 03002 are programmable in the unit; configurations 00129 and 02006 are automatic. •...
  • Page 88 00027 High Suction Pressure • Trigger-on Condition:  If the system is in Diesel Engine mode and the engine is running and Suction Pressure > 98 psig (6.8 bar) for 10 minutes. OR, if the system is in Standby Electric mode and the compressor is running and Suction Pressure > 98 psig (6.8 bar) and in cool for 10 minutes.
  • Page 89 00028 Low Delta Pressure Refrigeration System • Trigger-on Condition:  If the system is in Diesel Engine mode and the engine is running and Discharge Pressure - Suction Pressure < 5 psig (0.34 bar) for 10 minutes. OR, If the system is in Standby Electric mode and the compressor is running and Discharge Pressure - Suction Pressure <...
  • Page 90 00029 Check Heat Cycle • Trigger-on Condition:  If SAT is <= RAT minus 3F (1.5C) for one continuous minute after the initial 10 minute period in Heat mode. • Control Response:  Required alarm. • Trigger-off Condition:  Alarm is auto reset after 15 minutes. Alarm may be manually reset via keypad or by turning the alarm unit off and then back on again.
  • Page 91 00031 Auto Start Fail • Trigger-on Condition:  If the system is in Diesel Engine mode AND the engine fails to start on three consecutive attempts while the engine is in Auto Start mode. • Control Response:  If the system is in Diesel Engine mode, this is a required shutdown if configuration parameter is Standard OR if Unit Operation configuration parameter is Rail AND the Rail Shutdown Override is not in effect OR the number of Rail Restarts has been exhausted OR the engine has not been off for 240 minutes.
  • Page 92 6. Check engine air-intake system: a. Check air cleaner indicator. Flag must not be visible. b. Inspect air intake system. Verify hoses and tubes in good condition. Check for kinks or restrictions. 7. Check for correct engine oil: The viscosity must be correct for ambient conditions. 8.
  • Page 93 00035 Engine Failed to Crank • Trigger-on Condition:  If the system is in Diesel Engine mode AND the engine speed fails to reach 50 RPM after two attempts. • Control Response:  If the system is in Diesel Engine mode, then this is a required shutdown. If the system is in Standby Electric mode and the alarm is active, then this is an alarm condition only.
  • Page 94 5. Check ENCU and fuel speed actuator: a. Check voltage through fuse F5 fuse from TCP-13 to ENCU-22. Verify correct fuse, see Figure 2.8. Must have minimum 11 VDC. b. Check voltage at ENCU-44. Must have minimum 11 VDC. c. Check for ground from ENSSN terminal 1 and ENCU-19V to TPS-25 to TCP battery ground in control box.
  • Page 95 00037 Check Low Speed RPM • Trigger-on Condition:  If the system is in Diesel Engine mode AND Alarm 00130 (Engine RPM Sensor Check) is not active AND the unit is running low speed AND engine RPM is valid for 60 seconds, with the engine RPM <1480 or >1820. •...
  • Page 96 00038 Check High Speed RPM • Trigger-on Condition:  If the system is in Diesel Engine mode and Alarm 00130 (Engine RPM Sensor Check) is not active, this alarm will occur when the unit is running in high speed and engine RPM is valid for 60 seconds and: - Unit is TDx56xxxxxxx and engine RPM <...
  • Page 97 3. Check engine speed: a. Check actual engine speed using hand held tachometer. Speed must be within range shown above for this model. b. Compare actual speed with that shown in Unit Data. Readings within ± 50 RPM. 4. Check for proper voltage at Engine Speed Control Unit (ENCU): a.
  • Page 98 00039 Check Engine RPM • Trigger-on Condition:  The system is in Diesel Engine mode and Alarm 00130 (Check Engine Speed Sensor) is not active AND the engine is running AND the engine RPM < 1200 RPM or engine RPM > 2500 RPM for five minutes or <1000 RPM for 30 seconds.
  • Page 99 00041 Engine Stalled • Trigger-on Condition:  If the system is in Diesel Engine mode AND if engine running and Alarm 00130 (Check Engine Speed Sen- sor) is not active and RPM < 700. OR, If the system is in Diesel Engine mode AND If engine running and Alarm 130 is active and oil pressure switch is at low pressure.
  • Page 100 6. Check ENCU and Fuel Speed Actuator: a. Check voltage through fuse F5 from TCP-13 to ENCU-22. Verify correct fuse, see 2.4. Must Figure have minimum 11 VDC. b. Check voltage at ENCU-44. Must have minimum 11 VDC. c. Check for ground from ENSSN terminal G and ENCU-19 (including SP-2) to GND1RING2. Verify a good ground.
  • Page 101 • Control Response:  If out of range is shutdown is configured YES, then this is a Required Shutdown. If out of range shutdown is configured NO, then this is an alarm condition only. Energize the Out of Range light when this alarm is active and de-energize the Out of Range light when the alarm is not active.
  • Page 102 8. Check system pressures: • Install manifold gauge set, and check and compare compressor discharge and suction pressures with those shown in Unit Data. • Pressures must be in the normal range for ambient and refrigerated compartment temperature condi- tions. •...
  • Page 103 00055 Defrost Override • Trigger-on Condition:  If the external defrost signal goes active within eight minutes of two consecutive defrost terminations. The external defrost signal must be high continuously for 15 seconds before the signal is considered "active.” • Control Response: ...
  • Page 104 00059 Data Recorder Memory Fail • Trigger-on Condition:  If 131,072 bytes or more of consecutive data recorder flash memory cannot be erased or written. • Control Response:  Alarm only. • Trigger-off Condition:  Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 105 00060 Real Time Clock Fail • Trigger-on Condition:  The checksum of the Real Time Clock is invalid at initialization. • Control Response:  Alarm condition only. • Trigger-off Condition:  Alarm is auto reset after Real Time Clock is set. Alarm may be manually reset via keypad or by cycling power.
  • Page 106 00061 Door Open • Trigger-on Condition:  If the door switch configuration parameter is Door Open Switch Open and the Door Switch Input is 0 for five seconds while the engine is not cranking and the Stop/Run Switch is ON and the door switch shutdown con- figuration parameter does not equal Data Recorder Only.
  • Page 107 00073 Standby / No AC Power • Corrective Actions if a Switch is Installed:  The system is in Standby Electric mode AND the AC power input is not present AND No Power configuration is shutdown or Switch to engine for four seconds. A/C Power detection is based off of discrete inputs that read the feedback from both MC1 and MC2.
  • Page 108 00081 Check Fuel Heater Relay • Trigger-on Condition:  Fuel Heater Relay is Active and Fuel Heater Relay FET is sensed bad (feedback from FET output is low). OR, Fuel Heater Relay is Not Active and Fuel Heater Relay FET is sensed bad (feedback from FET output is high).
  • Page 109 00084 Check Remote Fault Light • Trigger-on Condition:  Fault output is active and Fault Output FET is sensed short (feedback from FET output is low). OR, Fault Output is not active and Fault Output FET is sensed bad (feedback from FET output is high).
  • Page 110 00093 Check Prestart (Check Prestart Buzzer) • Trigger-on Condition:  The buzzer is shorted or open. • Control Response:  Alarm condition only. • Trigger-off Condition:  Auto reset when buzzer amp draw is normal or via keypad or power cycling the unit. NOTE Follow the steps below as necessary until a problem is found.
  • Page 111 00114 LIV Circuit • Trigger-on Condition:  LIV output is active and LIV output FET is sensed shorted or open. • Control Response:  Alarm only • Trigger-off Condition:  LIV output is active and LIV output FET is sensed good. NOTE Follow the steps below as necessary until a problem is found.
  • Page 112 00121 Ambient Air Sensor Check • Trigger-on Condition:  Ambient Air Temperature Sensor (ATS) is out of range (-53° – 158°F (-47° – 70°C). • Control Response:  Alarm and a value of 122°F (50°C) will be used for any calculations. •...
  • Page 113 00122 Return Air Sensor Check • Trigger-on Condition:  Return Air Temperature sensor (RAT) is out of range. • Control Response: - If Alarm is not active: alarm and switch to supply air control. 00123 Supply Air Sensor Check - If Alarm is also active, alarm and the System will enter Cargo 00123 Supply Air Sensor Check Protect mode.
  • Page 114 00123 Supply Air Sensor Check • Trigger-on Condition:  The Supply Air Temperature sensor (SAT) is out of range • Control Response:  If Alarm is not active, the Functional Parameter Temperature Control is set 00122 Return Air Sensor Check for Supply Air and the setpoint is in the perishable range: alarm and switch to return air control.
  • Page 115 00125 Discharge Temperature Sensor • Trigger-on Condition:  The Discharge Temperature Sensor is out of range (-40° – 392°F ( -40° – 200°C)). • Control Response:  Alarm condition only. • Trigger-off Condition:  Alarm is auto reset when the Discharge Temperature Sensor is in range. Alarm may be manually reset via keypad or by cycling power.
  • Page 116 00129 Coolant Temperature Sensor Check • Trigger-on Condition:  The Engine Coolant Temperature sensor (ENCT) is out of range (-58° – 266°F (-50° – 130C)). • Control Response:  Alarm condition only. • Trigger-off Condition:  When the Engine Coolant Temperature sensor (ENCT) is in range. :Alarm may be manually reset via keypad or by cycling power.
  • Page 117 00130 Engine RPM Sensor Check • Trigger-on Condition:  If the ambient is >32°F (0°C) and this is the second or third start attempt and the engine oil pressure switch is closed and the engine speed is <1000 RPM OR if the ambient is <32°F (0°C) and the DC amp draw is >...
  • Page 118 00132 Defrost Termination Temp Sensor • Trigger-on Condition:  Defrost Termination Temperature #2 Sensor is out of range. • Control Response:  When this alarm is active, the system will use the supply air sensor for defrost initiation. If both this alarm and alarm 00123 are active, the system will use the return air sensor for initiation.

  • Page 119: Supply Air Sensor

    00134 Remote Temp Sensor 2 NOTE The APX control system uses one Defrost Termination Sensor (DTS) and that sensor will activate this “CHECK DEFROST TERM 2 SENSOR” alarm. • Trigger-on Condition: Defrost Termination Temperature Sensor (DTS) is not within the range of -58 to +266°F (-50 to +130°C).
  • Page 120 00141 Pretrip Abort • Trigger-on Condition: Pretrip cycle was stopped by user before the Pretrip cycle ended automatically. • Control Response: Alarm Only. • Trigger-off Condition: Alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
  • Page 121 00152 Check Fuel Solenoid Circuit • Trigger-on Condition:  The circuit current draw is outside the normal range. (0.1 – 4.0 amp) • Control Response:  Pretrip will fail. • Trigger-off Condition:  Auto-rest if pretrip is restarted via keypad or power cycling the unit. NOTE Follow the steps below as necessary until a problem is found.
  • Page 122 00154 Check Supply Temp Sensor • Trigger-on Condition:  Supply Air Sensor is not within the range of -53° – 158°F (-47° – 70°C) • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 123 00160 Check Discharge Temp Sensor • Trigger-on Condition:  Discharge Temperature Sensor is not within the range of -40° – 392°F (-40° – 200°C) • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 124 00175 No High Speed RPM • Trigger-on Condition:  See alarm 00038 for ranges for all models • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 125 00180 Check Suction Mod Valve • Trigger-on Condition:  Insufficient reduction in suctions pressure while closing the SMV • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 126 00190 Check Condenser Fan Motor 1 • Trigger-on Condition:  Failed to raise discharge pressure during Pretrip test 10 • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation. • Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 127 00195 Low Suction Pressure • Trigger-on Condition:  This alarm is generated during Pretrip test 4 and the suction pressure is higher than expected. • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 128 00196 High Discharge Pressure • Trigger-on Condition:  This alarm is generated during Pretrip test 4 and the discharge pressure is higher than expected based on current ambient temperatures. • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation.
  • Page 129 00198 Low Discharge Pressure • Trigger-on Condition:  This alarm is generated during a “Heat” Pretrip and discharge pressure is lower than expected based on cur- rent ambient temperatures. • Control Response:  Alarm condition only. • Trigger-off Condition:  After Pretrip Initiation.
  • Page 130 00204 Low Suction Pressure • Trigger-on Condition:  This alarm is generated during a “Heat” Pretrip and discharge pressure is < suction pressure + 10 psig (0.7 bar). • Control Response:  Alarm condition only. • Trigger-off Condition:  Suction pressure > -2psig. Alarm may be manually reset via keypad or by cycling power.
  • Page 131 00209 Check Standby Contactor Circuit • Trigger-on Condition:  The standby contactor is out of the normal range. • Control Response:  Alarm condition only. • Trigger-off Condition:  Alarm may be manually reset using the display mounted keys. NOTE Follow the steps below as necessary until a problem is found.
  • Page 132 00224 Maintenance Hour Meter - Total Electric • Trigger-on Condition:  Standby Electric Motor Hours is greater than the standby electric motor maintenance hour meter value. • Control Response:  Alarm condition only. • Trigger-off Condition:  Alarm may be manually reset using the display mounted keys. NOTE Follow the steps below as necessary until a problem is found.
  • Page 133 00232 Setpoint NVD Failure • Trigger-on Condition:  NVD Setpoint is out of range. • Control Response:  Required shutdown. Setpoint is defaulted. • Trigger-off Condition:  When a valid setpoint is entered. Alarm may be manually reset by turning the unit off, then back on again. NOTE Follow the steps below as necessary until a problem is found.
  • Page 134 Check model number in microprocessor. Check model number on nameplate. b. Enter correct model Number. Select the correct model number in the “modeL NUMBER” Configura- tion. If correct model number is not found, install (or have Carrier Transicold dealer install) the latest software revision.
  • Page 135 00237 Functional Parameters NVD Failure • Trigger-on Condition:  An NVD Functional Parameter is out of range. • Control Response:  Required shutdown. Invalid Functional Parameters are set to default. The remainder are left alone. • Trigger-off Condition:  When a valid Functional Parameter is entered. Alarm may be manually reset by turning the unit off, then back on again.
  • Page 136 00238 Config Parameters NVD Failure • Trigger-on Condition:  There is an error in the NVD Configuration Parameters stored in the main microprocessor memory. • Control Response:  Required shutdown. • Trigger-off Condition:  Only when a valid Configuration Parameter is entered. Alarm may be manually reset by turning the unit off, then back on again.
  • Page 137 00245 NVD Write/Erase Failure • Trigger-on Condition:  NVD Flash Write or Erase Failure. • Control Response:  Alarm condition only. Prohibit further NVD Flash writes/erases. • Trigger-off Condition:  Auto reset with a successful NVD Flash Write or Erase. NOTE Follow the steps below as necessary until a problem is found.
  • Page 138 00248 Controller Info NVD Failure • Trigger-on Condition:  The NVD Controller Info output is out of range. • Control Response:  Required shutdown. Set all NVD contents to default. • Trigger-off Condition:  Only when valid controller information is available for the microprocessor. NOTE Follow the steps below as necessary until a problem is found.
  • Page 139 02000 Software Incompatibility • Trigger-on Condition:  If the transmitted software version number does not equal the accepted version number pulled from a list of current version. Table is indexed by Application ID. There are two exceptions in which the comparison will not take place: 1.
  • Page 140 03003 Check Medium Speed • Trigger-on Condition:  Unit running in diesel engine mode and alarm 00130 and 39 are not active and the system is calling for medium speed and RPM is not within the range (<1630 and >1970) •...
  • Page 141 05003 Diesel / Electric Relay • Trigger-on Condition:  If the Diesel / Electric Relay is active, and the DER FET is sense short or open. • Control Response:  Alarm only. • Trigger-off Condition:  If the Diesel / Electric Relay is not active. NOTE Follow the steps below as necessary until a problem is found.
  • Page 142 05012 Run Relay Output - Check ENCU Power Circuit • Trigger-on Condition:  The Run Output is Active and Output Circuit Feedback is sensed out of Active Range. OR, the Run Output is Inactive and Output Circuit Feedback is sensed out of Inactive Range. •...
  • Page 143 05014 Check Starter Circuit • Trigger-on Condition:  The Starter Output is Active and Output Circuit Feedback is sensed out of Active Range. OR, the Starter Output is Inactive and Output Circuit Feedback is sensed out of Inactive Range. • Control Response: ...
  • Page 144 05015 Check Three-Way Valve • Trigger-on Condition:  The 3-way Valve (Hot Gas Valve) is Active and Output Circuit Feedback is sensed out of Active Range. OR, the 3-way Valve (Hot Gas Valve) is Inactive and Output Circuit Feedback is sensed out of Inac- tive Range.
  • Page 145 05016 Check Remote Lightbar Power • Trigger-on Condition:  Remote Lightbar Output is Active and Remote Lightbar Output FET is sensed short (feedback from FET out- put is low). OR, the Remote Lightbar Output is Not Active and Remote Lightbar Output FET is sensed bad (feed- back from FET output is high).
  • Page 146 05028 TPC Fuse 2 Alarm • Trigger-on Condition:  TPC Reports Fuse Status Bad AND SIO Comm Fail Alarm 25800 is active for 15 seconds. • Control Response:  Alarm condition only. • Trigger-off Condition:  Activate conditions not true for two seconds. NOTE Follow the steps below as necessary until a problem is found.
  • Page 147 05031 TPC Fuse 10 Alarm • Trigger-on Condition:  Output Power and Power Enable Power detected at TPC AND both Evap Fan Outputs ordered OFF AND Error Reported on both channels for five seconds. • Control Response:  Alarm condition only. •...
  • Page 148 05033 Power Enable Coil Open Circuited • Trigger-on Condition:  Power Enable Control is ordered OFF AND TPC reports Output Error on PER channel for six seconds. • Control Response:  Alarm condition only. • Trigger-off Condition:  Activate conditions not true for two seconds. NOTE Follow the steps below as necessary until a problem is found.
  • Page 149 05034 Power Enable Contact Fail Alarm • Trigger-on Condition:  Power Enable Control is ordered ON and Power Enable Power not detected at TPC for six seconds. • Control Response:  Alarm condition only. • Trigger-off Condition:  Activate conditions not true for two seconds. NOTE Follow the steps below as necessary until a problem is found.
  • Page 150 06003 Evap Fan 2 • Trigger-on Condition:  Evap Fan #2 Output is Active and Evap Fan #2 Output FET is sensed short (feedback from FET output is low). OR, Evap Fan #2 Output is not Active and Evap Fan #2 Output FET is sensed bad (feedback from FET output is high).
  • Page 151 07006 Check Suction Pressure Transducer • Trigger-on Condition:  Suction Pressure Transducer is out of range. • Control Response:  Alarm condition only. • Trigger-off Condition:  Suction Pressure Transducer is in range. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 152 11003 Check Evap Fan 1 and 2 • Trigger-on Condition:  Value out of range in Pretrip Test per Pretrip Diagnostics. • Control Response:  Alarm condition only. • Trigger-off Condition:  Pretrip Initiation. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 153 15001 No Medium Speed • Trigger-on Condition:  RPM out of range for medium speed during Pretrip • Control Response:  Alarm condition only. • Trigger-off Condition:  Unit is running in diesel engine mode and RPM is within range of medium speed spec 1630 - 1970. NOTE Follow the steps below as necessary until a problem is found.
  • Page 154 22800 MCA-IN - CAN Fail • Trigger-on Condition:  No communication from the MCA NOTE Follow the steps below as necessary until a problem is found. Once a repair or correction has been made, the active alarm should clear itself (refer to reset condition above). Operate the unit through the appropriate modes to see if any active alarm occurs.
  • Page 155 22801 MCA-IN - Low Sensor Voltage • Trigger-on Condition:  The voltage supply for the pressure sensors on the input board 1 is below the low voltage limit 4.5V. • Control Response:  Alarm only. • Trigger-off Condition:  The voltage supply for the pressure sensors on the input board 1 is above the low voltage limit 4.5V. NOTE Follow the steps below as necessary until a problem is found.
  • Page 156 22803 MCA-IN - Lost Configuration • Trigger-on Condition:  MCA-IN hoard reports an invalid configuration checksum. • Control Response:  Required Shutdown and if alarm remains active for two minutes issue a shutdown command to all modules except the display. •...
  • Page 157 25800 SIO - CAN Fail • Trigger-on Condition:  No communications from the SIBOB. • Control Response:  Required shutdown. And if alarm remains active for two minutes issue a shutdown command to all modules except the display. • Trigger-off Condition:  Sync response received from the SIO Module.
  • Page 158 25801 SIO Over Current • Trigger-on Condition:  If the stepper current is reported to be too high by SIO (Indicated by Stepper Output Voltage < 5V) for three seconds as timed at stepper board. • Control Response:  Alarm condition only. Steppers on board with problem disabled (Powered OFF) until good power reported from Stepper Board at which point they are re-enabled.
  • Page 159 25803 SIO Lost Configuration Voltage • Trigger-on Condition:  SIO Board reports an invalid configuration checksum. • Control Response:  Required Shutdown. And if alarm remains active for two minutes issue a shutdown command to all modules except the display •...
  • Page 160 26101 Engine Overheat • Trigger-on Condition:  As indicated by the Kubota ENCU. Engine water temperature > 262 °F (128 °C). • Control Response:  Alarm condition only. • Trigger-off Condition:  If trigger on message not received for five seconds. Alarm may be manually reset via keypad or by cycling power.
  • Page 161 26104 Battery Voltage High • Trigger-on Condition:  As indicated by the Kubota ENCU. ECU recognition of battery voltage is above 18V. • Control Response:  Required shutdown. • Trigger-off Condition:  If trigger on message not received for five seconds. Alarm may be manually reset via keypad or by cycling power.
  • Page 162 26105 Engine Overrun • Trigger-on Condition:  As indicated by the Kubota ENCU message. Engine speed > 2070 min-1 (RPM). • Control Response:  Required shutdown. • Trigger-off Condition:  If trigger on message not received for five seconds. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 163 26107 Oil Pressure Error • Trigger-on Condition:  As indicated by the Kubota ENCU. Oil pressure switch ON. • Control Response:  Alarm condition only. • Trigger-off Condition:  If trigger on message not received for five seconds. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 164 26110 Engine Speed Sensor Abnormal • Trigger-on Condition:  As indicated by the Kubota ENCU. Engine speed = 0 min-1 (RPM). • Control Response:  Required shutdown. • Trigger-off Condition:  If trigger on message not received for five seconds. Alarm may be manually reset via keypad or by cycling power.
  • Page 165 29001 Alternator High Temperature • Trigger-on Condition:  F-HT error occurs on the LIN bus. Alarm is triggered in two seconds. • Control Response:  Shutdown alarm. • Trigger-off Condition:  Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 166 29003 Alternator Belt Slip • Trigger-on Condition:  This alarm is only for diesel mode. Alternator RPM does not match engine RPM based on calculation and this occurs three times in a minute time period. Prohibit this measure and alarm in engine startup and ramp process. Prohibit this measure and alarm when CAN or LIN communication error occur.
  • Page 167 29005 LIN Con Timeout • Trigger-on Condition:  F-CTO error occurs on the LIN bus. Alarm is triggered immediately. • Control Response:  Alarm only. • Trigger-off Condition:  Five seconds without F-CTO error. Alarm may be manually reset via keypad or by cycling power. NOTE Follow the steps below as necessary until a problem is found.
  • Page 168 29007 Can’t Recognize Power Frequency • Trigger-on Condition:  Unit is in Standby mode AND Logic is not able to recognize either 50Hz OR 60Hz frequency from the Net- work. • Control Response:  Alarm only. • Trigger-off Condition:  Subsequent Standby Startup with good Frequency Detection.

  • Page 169: Service

    SECTION 6 Service WARNING Unit may start automatically at any time even if the switch is in the OFF position. Use proper lockout/tagout procedures before inspection/servicing. All unit inspection/servicing by prop- erly trained personnel only. WARNING Beware of V-belts and belt driven components as the unit may start automatically. Before ser- vicing unit, the RUN/ STOP Switch must be in the STOP position.

  • Page 170: Section Layout

    Section Layout Service procedures are presented herein under the following major sections: • Scheduled Maintenance - Section 6.2. • Pre-Trip Inspection - Section 6.3. • Engine and Engine Related Components - Section 6.5. • Poly-V belts - Section 6.6 • Compressor - Section 6.8.
  • Page 171 Range Initial Check Service Service Check routing of electrical wires, harnesses, fuel lines (repair or replace if needed), cab command routing, plug from standby module, check oil tubes routing and security Check battery security, lubricate terminals against corrosion, check battery cables routing. Check fuel tank straps integrity, fixing bolts, cap.

  • Page 172: Servicing Engine And Engine Related Components

    Range Initial Check Service Service Reconnect battery clamps. Start the unit on standby. Perform run test (diesel and electrical) Program service interval Check internal clock and date of temperature recorder. Check and confirm all current product upgrades have been completed Replace maintenance sticker and clean unit of marks made during service Every five years or 12,000 hours Replace coolant and coolant bottle cap...
  • Page 173 1. Remove all foreign material from the radiator/condenser coil by reversing the normal air flow. (Air is pulled in through the front and discharges over the standby motor.) NOTE Rinsing with a hose or water is the best option. Use a mild detergent if necessary, but do not use any harsh coil cleaners.
  • Page 174 6.5.1.1 Bleeding Air from Coolant System NOTE Damage to the engine can occur if the engine runs with air trapped in the coolant system of the engine block. To bleed the air from the coolant system: 1. Remove or loosen the bleeder set screw from the top hose on the thermostat housing. In some instances, it may be more efficient to remove the thermostat housing.

  • Page 175: Changing Lube Oil And Lube Oil Filter

    6.5.2 Changing Lube Oil and Lube Oil Filter CAUTION When changing oil filter, the new filter should be primed with clean oil. If the filter is not primed, the engine may operate for a period with no oil supplied to the bearings. After warming up the engine, stop engine, remove drain plug from oil reservoir and drain engine lube oil.

  • Page 176: Engine Speed Adjustment

    6.5.4 Engine Speed 1. Engine speed may be determined using a strobe tachometer. (Carrier Transicold Part No. 07-00206) or by checking the Unit Data “ENGINE RPM” reading (refer to in Section 2.6.1). To use a strobe; with Table 2–8 the engine stopped, place a mark (white paint for example) on the crankshaft sheave.

  • Page 177: Fuel Filter And Fuel Circuit

    6.5.7 Fuel Filter and Fuel Circuit Figure 6.3 Fuel System Restrictor fitting Return ube Injection pump Bleed Fuel filter Fuel pump Injectors Supply line R R eturn line 6.5.7.1 Checking Fuel Circuit • The engine must run with bleed port slightly unscrewed. This indicates that the injection pump pressure is greater than 1.47 psig (0.1 bar).

  • Page 178: Servicing Glow Plugs

    Figure 6.4 Electric Fuel Pump Filter Connector Bowl Gasket 6.5.7.3 Verify Fuel Pump Capability 1. Remove fuel pump from the system. Connect a manometer to pump outlet. Energize fuel pump with a small quantity of fuel. 2. At zero flow, the fuel pump should provide about 10.30 psig (0.7 bar) of pressure at the pump outlet. •...

  • Page 179: 6.5.9 Alternator

    6.5.9 Alternator CAUTION Observe proper polarity, reverse polarity will destroy the diodes. As a precaution, disconnect positive terminal when charging. The alternator and regulator are housed in a single assembly. A diagram for alternator troubleshooting or replace- ment is provided below (see Figure 6.5).

  • Page 180: Servicing And Adjusting V-Belts

    It is also important to keep belts and sheaves free of any foreign material which may cause the belts to slip. The belt tensioner can be used to adjust the belt. The readings which we specify for Carrier Transicold units are applicable only for our belts and application as the tension is dependent on the size of the belt and distance between sheaves.

  • Page 181: Water Pump Belt

    Table 6–1 Belt Tension Initial Tension Run-In Tension Minimum Tension Drive Kit (S6 - S10) 120 Hz + 6 Hz 100 Hz + 5 Hz 85 Hz + 4 Hz Water Pump (S6) 171 Hz + 15 Hz Water Pump (S7 - S9) 150 Hz + 15 Hz Water Pump (S10) 95 Hz + 15 Hz...
  • Page 182 WARNING Unit may start automatically at any time even if the switch is the OFF position. Use proper lock- out/tagout procedures before inspection or servicing. All unit inspection/servicing by properly trained personnel only. CAUTION Before performing any work, ensure the unit start-run off switch (SROS) is in the OFF position, the negative battery cable is disconnected, and any external shore power is removed.

  • Page 183: Servicing Refrigerant System

    Refrigerant System Service Connections A manifold gauge/hose set is required for service of models covered within this manual. The manifold gauge/hose set is available from Carrier Transicold. (Carrier Transicold P/N or 07-00294-00 for R-134A or 07-00314-00 for R- 452A. Refer to Figure 6.10).

  • Page 184: Connecting Manifold Gauge Set

    6.7.3 Connecting Manifold Gauge/Hose Set To connect the manifold gauge/hose set for reading pressures: 1. Remove the service valve stem cap and check that it is backseated. Remove the access valve cap. 2. Connect the refrigeration hose to the access valve. 3.

  • Page 185: Removing Manifold Gauge Set

    1. Connect a manifold gauge set to the unit with connections to the following equipment: • Suction (LP) service valve • Vacuum pump • Discharge (HP) service valve • Receiver service valve 2. Start the vacuum pump. 3. Open all of the manifold gauge valves. 4.

  • Page 186: Servicing Refrigerant Charge

    6.7.5 Servicing Refrigerant Charge WARNING Before performing any “hot work,” including but not limited to brazing or welding on a unit that has been charged with R-452A, refrigerant must be recovered until equipment gauge indicates -20 inHG (-0.67 Bar) of vacuum. Nitrogen purge is also required. Refer to Service Section for recovery procedure.

  • Page 187: Refrigerant Leak Checking

    6.7.5.2 Pumping Down the Unit To service the filter drier, expansion valve, CSMV valve or evaporator coil, pump most of the refrigerant into the condenser coil and receiver with the instructions below. This will put into a vacuum the circuit from the king valve to the suction service valve.
  • Page 188 Procedure: 1. Backseat the suction and discharge service valves. 2. Backseat the receiver service valve (king valve). 3. Connect the manifold gauge set to the suction and discharge service valves, and to the receiver service valve (king valve) connection plug. NOTE If local regulations state that hoses must be evacuated, then refer to refer to Evacuation and Dehy-...
  • Page 189 WARNING Before performing any “hot work,” including but not limited to brazing or welding on a unit that has been charged with R-452A, refrigerant must be recovered until equipment gauge indicates -20 inHG (-0.67 Bar) of vacuum. Nitrogen purge is also required. Refer to Service Section for recovery procedure.
  • Page 190 Figure 6.12 Connections for Refrigerant Recovery 62-11868 6-22...
  • Page 191 6.7.6 Refrigerant Leak Checking If system was opened and repairs completed, leak check the unit. 6.7.6.1 Standard Leak Check WARNING Use only the correct refrigerant to pressurize the system. To increase the pressure, dry nitro- gen may be used. Any other gas or vapor will contaminate the system which will require addi- tional purging and evacuation of the high side (discharge) of the system.
  • Page 192 Figure 6.13 Nitrogen Pressure Regulator 5. Close the regulator (turn fully counterclockwise) to prevent any pressure from being added to the system. 6. Open the nitrogen cylinder and gradually open the regulator (turn clockwise) until the outlet pressure gauge reads 20 to 150 psi. This is a sufficient amount of pressure to find any leak. 7.

  • Page 193: Charging The Refrigeration System

    6.7.7.3 Evacuating and Dehydrating System 1. Remove refrigerant using a refrigerant recovery system. Refer to Recovery Procedure to Remove the procedure. Refrigerant Charge 2. The recommended method to evacuate and dehydrate the system is to connect three evacuation hoses to the vacuum pump and refrigeration unit.
  • Page 194 6.7.8.2 Adding a Partial Charge NOTE The ambient (air entering the condenser) air temperature should be above 40°F (4.4°C). 1. Place drum of refrigerant on the scale and note the weight. 2. Backseat the discharge and suction service valves and install a manifold gauge set in order to monitor system. Purge the lines.

  • Page 195: Refrigerant Recovery Prior To Unbrazing For R-452A Units

    6.7.9 Refrigerant Recovery Prior to Unbrazing Operation for R-452A Units WARNING R-452A refrigerant is an A1 non-flammable refrigerant blend which includes some mildly flammable constituents. As such, please follow all proper service and maintenance procedures. Ensure that proper evacuation procedure is strictly followed before performing any “hot work,”...
  • Page 196 6.7.9.1 Unit Connection Figure 6.14 Unit Connection Connect the manifold gauge set to the unit (refer to Figure 6.12 Figure 6.14) • Hose A to low-pressure compressor service valve • Hose B to vacuum pump • Hose C to high-pressure receiver tank king valve •...
  • Page 197 6.7.9.2 Evaporator Connection Figure 6.15 Evaporator Connection 1. Connect the manifold gauge (II) to the evaporator. Refer to Figure 6.15. • Hose A to the evaporator connection port. • Hose B to the vacuum pump 2. Start the vacuum pump. 3.
  • Page 198 6.7.9.3 Recovery System Installation Figure 6.16 Recovery System 1. Connect recovery machine to hose (B).Refer to Figure 6.16. 2. Place the R-452A recovery bottle onto the scale and note the weight. 3. Check the admissible charge indicated in the R-452A recovery bottle information. 4.
  • Page 199 10. Disconnect the recovery machine and dispose of the R-452A recovery bottle according to local regulation. End of recovery procedure 11. Purge with Nitrogen. For more information about nitrogen instruction, refer to Carrier Transicold document #98-60068-00 (Brazing Instructions). The refrigerant circuit is ready for unbrazing operation. Perform unbrazing operation under nitrogen.

  • Page 200: Replacing The Compressor

    Replacing the Compressor WARNING Ensure power to the unit is OFF and power plug is disconnected or vehicle engine is OFF and negative battery cable is disconnected before replacing the compressor. WARNING Unit may start automatically at any time even if the switch is in the OFF position. Use proper lockout/tagout procedures before inspection/servicing.

  • Page 201: Compressor Oil Service

    Compressor Oil Service 6.9.1 Checking Oil Level - Method 1 1. Operate the unit in high speed cooling for at least 20 minutes. 2. Check the oil sight glass on the compressor to ensure that no foaming of the oil is present after 20 minutes of operation.

  • Page 202: Adding Oil To Service Replacement Compressor

    6.9.4 Adding Oil to Service Replacement Compressor Service replacement compressors may or may not be shipped with oil. If compressor is without oil: Add correct oil charge by removing the oil fill plug (See Figure 6.17). 6.9.5 Remove Oil from the Compressor 1.
  • Page 203 6.10 Servicing the Refrigerant System Components 6.10.1 Evaporator Coil Cleaning The use of recycled cardboard cartons is increasing across the country. The recycled cardboard cartons create much more fiber dust during transport than new cartons. The fiber dust and particles are drawn into the evaporator where they lodge between the evaporator fins.
  • Page 204 Figure 6.18 Setup for Testing High Pressure Switch Pressure Gauge Cylinder Valve and Gauge 0 to 400 psig (0 to 27.2 bar) Bleed-Off Valve Pressure Regulator Switch Nitrogen Cylinder 1. Remove switch as outlined in Section 6.10.4. 2. Connect ohmmeter or continuity light across switch terminals. Ohmmeter will indicate resistance and conti- nuity light will be lighted if switch closed after relieving pressure.
  • Page 205 Figure 6.19 Defrost Air Switch Test Setup 1. Ohmmeter or Continuity Device 2. Adjustment Screw (0.050 socket head size) 3. Low Side Connection 4. Pressure Line or Aspirator Bulb (P/N 07-00177-01) 5. Magnehelic Gauge (P/N 07-00177) 6. High Side Connection - - - - - 6.10.6 Solenoid Valves...
  • Page 206 6.10.6.2 Replacing Solenoid Coil It is not necessary to pump the unit down to replace the coil. (See Figure 6.20) 1. Remove snap cap to remove coil. Disconnect from harness. 2. Verify the coil type and voltage. This information appears on the coil voltage plate and the coil housing. 3.
  • Page 207 The valve stepper motor may be tested using a stepper motor drive tester or ohmmeter. 1. To test with a stepper motor drive tester (Carrier Transicold part number 07-00375-00), connect the 4-pin test cable supplied with the tester to the valve connector, refer to and the cable wires to the tes- Figure 6.22...
  • Page 208 3. Leak check, evacuate and dehydrate, and charge system as required. Refer to Section 6.7.6, Section 6.7.7 Section 6.7.5. 6.10.8 Thermal Expansion Valve (TXV) The thermal expansion valve (see 6.23) is an automatic device which maintains constant superheat of the Figure refrigerant gas leaving the evaporator regardless of suction pressure.

  • Page 209: Suction Line

    Figure 6.24 Thermostatic Expansion Valve Bulb and Thermocouple TXV Bulb Clamp Nut and Bolt TXV Bulb 3/4 - 1 1/4 in. 18 - 32 mm Thermocouple Suction Line 6.10.8.2 Replacing Expansion Valve 1. Check superheat in accordance with the preceding steps. If valve requires replacement, pump down the unit.
  • Page 210 6.11 Servicing the Electrical System Components Procedures for servicing or maintaining the electrical system components are provided in the following sub-paragraphs. NOTE When any module is replaced, software should be upgraded before switching the unit on. This will ensure software compatibility of all modules. 6.11.1 Microprocessor Controller Under no circumstances should a technician electrically probe the processor at any point,...
  • Page 211 NOTE BEFORE STARTING THE UNIT: When replacing a MCA it is important to upload the most current soft- ware and set the customer configurations and functions. 6.11.3 Upgrading Supra Series Software via TRU-Tech / TRU-View Tools Required Quantity Part Number...
  • Page 212 5. In the pop-up window, click the “Update” button (see Figure 6.26). Figure 6.26 Update Button 6. Another pop-up will appear. Click the “Browse” button and locate the software that was downloaded from the Carrier SolutionCenter (see Figure 6.27). Figure 6.27 Browse Button 62-11868 6-44...
  • Page 213 7. When the “Software Upgrade” screen reappears, confirm you have selected the correct software. The selected version will be displayed in the SW Version to Load line of the screen. After confirming the correct version is selected, click the “Update” button (see Figure 6.28).
  • Page 214 Figure 6.29 Software Upload 9. After the installation has completed, a pop up will appear telling you the installation was successful. Click the “OK” button (see Figure 6.30). Figure 6.30 Installation Complete 10. The Software Upgrade screen will refresh showing the new version of software on the controller. At this point, click the “Close”...
  • Page 215 11. The software upgrade is now finished and it is safe to Click the “Close” button (see Figure 8) and shut down the TRU-Tech program and switch of the cab command (see Figure 6.32). Figure 6.32 Close Button 6.11.4 Configuration Table NOTE Configurations can not be changed via keypad on cab command.

  • Page 216: Minimum Temperature

    RANGE 1 LOCK OFF = If both Range Locks are OFF, the unit will operate normally. If either Range 1 or Range 2 is not OFF, RANGE 2 LOCK the unit will operate as selected when- ever the setpoint is within that range. START-STOP START-STOP = The unit will always op- erate in Start-Stop whenever the set-...
  • Page 217 0 - No Tech Reset - High Engine If Set to Yes, AL 21 Techinician Reset Temperature 1 - Yes Required alarm is enabled. Default: Yes 0 - No (disabled) Coolant Sensor Shutdown If set to yes, Alarm 00129 will shut down. 1 - Yes (enabled) Default: No 0 - No...
  • Page 218 Range: 0 to 255 seconds, with interval Low Suction Pressure Time delay before unit shutdown after a of 1 second Shutdown Delay low suction pressure condition exist if suction pressure input in this unit333 Default: 255 seconds 0 - No; will not shutdown unit. High Suction Pressure Shutdown unit if suction pressure is Shutdown...
  • Page 219 0 to 30,000 hours, with intervals of 50 Sets the alarm trigger point for the hour Standby Reset Value hours meter. The reset value is added to the current alarm trigger point. Default: 0 0 to 30,000 hours, with intervals of 50 Sets the alarm trigger point for the hour Switch On Reset Value hours...
  • Page 220 121°F (49.4°C) = Off If the Door switch is installed and Door Run Low Speed Below -20°F to 120°F switch is configured for Low Speed, this configuration is available, this will (-28.9°C to 48.9°C) control the speed when the door is open. Default: Off Other Settings 0 - No...
  • Page 221 If set to 1, this enables Alarm 20101 and detects CAN Communication failure with Remote Panel. If set to 0 and a remote panel is connected, the remote panel will display 0 - Not Installed Number of Remote Panels a message indicating that the configuration must be changed and will 1 - 1 Remote Panel Installed not operate until then.
  • Page 222 Table 6–4 Resistance - Micro Units Temperature AAT, DTS, ENCT, RAT, RRAT, SAT, SSAT Resistance In Ohms ° ° Resistance In Ohms -28.9 165,300 1,653,000 -23.3 117,800 1,178,000 -17.8 85,500 855,000 -12.2 62,400 624,000 -6.7 46,300 463,000 -1.1 34,500 345,000 32,700 327,000 26,200...
  • Page 223 Table 6–5 R-404A Temperature/Pressure Chart Temperature Pressure Temperature Pressure °F °C Psig Kg/cm °F °C Psig Kg/cm 0.32 0.31 72.5 5.10 5.00 0.50 0.49 75.6 5.32 5.21 0.70 0.68 78.8 5.54 5.43 12.9 0.91 0.89 82.1 5.77 5.66 16.3 1.15 1.12 85.5 6.01...
  • Page 224 Table 6–6 R-452A Temperature/Pressure Chart Temperature Liquid Vapor Temperature Liquid Vapor °F °C psig psig °F °C psig psig -29.2 10.4 0.72 0.45 144.6 9.97 128.6 8.87 -25.6 12.7 0.87 0.58 71.6 153.5 10.59 136.9 9.44 15.1 1.04 10.6 0.73 75.2 162.8 11.23...

  • Page 226: Troubleshooting

    SECTION 7 Troubleshooting CAUTION DO NOT attempt to service the microprocessor or the logic or display boards! Should a prob- lem develop with the microprocessor, contact your nearest Carrier Transicold dealer for replacement. Diesel Engine Indication/Troubles Possible Causes Reference Section 7.1.1...
  • Page 227 7.1.3 Starter Motor Malfunction Clean both, re- Starter motor turns move burrs, or Pinion or ring gear obstructed or worn but pinion does not engage replace; apply grease Starter motor does not disengage Starter motor solenoid defective Engine Manual after switch was depressed Pinion does not disengage Defective starter Engine Manual...
  • Page 228 Refrigeration 7.3.1 Unit Will Not Cool Diesel engine Malfunction(s) Compressor drive defective Compressor malfunction Compressor defective Defrost cycle did not terminate 7.3.5 Refrigeration system Abnormal pressure 7.3.6 Hot Gas 3-way valve (HGS1) malfunction 7.3.12 7.3.2 Unit Runs But Has Insufficient Cooling Compressor Compressor valves defective Abnormal pressure...
  • Page 229 7.3.5 Defrost Cycle Malfunction Defrost air switch (DA) out of calibration 6.10.5 Defrost thermostat (DTS) open or defective Replace Will not initiate defrost Defrost air switch (DA) defective 6.10.5 automatically Loose terminal connections Tighten Air sensing tubes defective or disconnected Check Microprocessor defective Replace...
  • Page 230 7.3.7 Abnormal Pressure, Heating High discharge pressure Overcharged system Non-condensibles in system Check Compressor valve(s) worn or broken Low discharge pressure Hot Gas 3-way valve (HGS1) malfunction 7.3.12 Low refrigerant charge Refrigerant shortage Low suction pressure Suction service valve partially closed Open Defective SMV 6.10.7...
  • Page 231 7.3.11 Expansion Valve Malfunction Low refrigerant charge 6.7.5 External equalizer line plugged Clean Ice formation at valve seat 6.10.8 Low suction pressure with Wax, oil or dirt plugging valve or orifice high superheat 6.10.8 Broken capillary 6.10.8 Power assembly failure or partial Replace Loss of element/bulb charge Replace...

  • Page 232: Electrical Schematic And Wiring Diagram

    Under no circumstances should ether or any other starting aids be used to start engine. CAUTION Under no circumstances should anyone attempt to repair the Logic or Display Boards! Should a problem develop with these components, contact your nearest Carrier Transicold dealer for replacement. CAUTION Observe proper polarity when installing battery, negative battery terminal must be grounded.
  • Page 233 Pin Connections 2MCA Component Terminal AAT-A Component Terminal 1MCA-10 Not Used DTS-A Not Used SAT-A SP12 RRAT-A 2SIOB-23 RSAT-A SP13 Not Used SP18 Not Used Not Used Not Used FLS-C Not Used FLS-A SP19 CDT-A C14-d Not Used SP21 RAT-A ENCU-22 SAT-B SP12...
  • Page 234 1MCA Component Terminal TPC-24 1SIOB-2 SP21 CANOPT-1 SATCOM-A 1SIOB-4 1SIOB-6 CANOPT-2 SATCOM-B TPC-1 1SIOB-1 SP21 ALT-L Not Used ENCU Component Terminal Component Terminal ENCT-B ENSSN-2 SP10 Not Used Not Used Not Used Not Used Not Used Not Used ENCT-A Not Used Not Used Not Used Not Used...
  • Page 235 1SIOB 2SIOB Component Terminal Component Terminal 1MCA-11 DAS-1 1MCA-2 Not Used DM-A C14-B 1MCA-6 Not Used SP10 CSMV-C 1MCA-7 C14-J Not Used DM-E Not Used Not Used Not Used Not Used Not Used SP17 Not Used Component Terminal Component TPC-10 1C2-1 Not Used 2SIOB-3...
  • Page 236 Wiring Schematic The wiring schematics are provided on the following pages. 62-11868...
  • Page 237 62-11868...
  • Page 244 s y s T E M J.!ltAll ll!!Bl2L 12ESCB I PT 1ml L!IC AT U!I II F BAME DIODE CONTROL 801 F·B/0·5 (UCIRIC HEAT RELAY CONTROL 801 8·6 FUSE H(Al(R L1 CONTROL 801 C·6 FUSE H(Al(R LZ CONTROL 801 FUSE H(Al(R L3 CONTROL 801 - - - - - C 1 -1...
  • Page 247 Central America and Mexico Carrier Transicold Carrier Transicold 700 Olympic Drive Ejercito Nacional 253-A Piso 5 Colonia Anahuac 11320 Athens, GA 30601 Mexico D.F. ©2023 Carrier Corporation. Printed in USA 04/23. Carrier, Carrier Transicold is a registered trademark of Carrier Corporation.

This manual is also suitable for:

S6S7S8S9S10

Table of Contents

Save PDF