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Carrier TRANSICOLD Vector 8600MT Operation And Service Manual

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Operator's manual (66 pages)

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Operation and Service Manual

Vector 8600MT

TM

Mutli-Temp Trailer Refrigeration Units

62-11782 Rev E

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Summary of Contents for Carrier TRANSICOLD Vector 8600MT

Page 1 Operation and Service Manual Vector 8600MT Mutli-Temp Trailer Refrigeration Units 62-11782 Rev E...
Page 3 Operation and Service Manual VECTOR 8600MT Multi-Temp Trailer Refrigeration Units © Carrier Corporation, 2021 Printed in U. S. A. March 2021...
Page 4 Manual Revision History 62-11782 Rev. Date Reason for Release Converted to FrameMaker started 10/14 05/10/17 03/19/19 8.8 Corrected Step 17 - Torque mounting bolts to 66 ft-lbs (89 Nm); Spell check 5/7/2020 Updated covers and logo; updated diagnostic instructions for CSMV and EVXV 3/5/2021 Sections 1, 2, and 8: Updated with R-452A references, instructions,...
Page 5: Table Of Contents
Safety Precautions ..................1–1 SAFETY PRECAUTIONS .
Page 6 2.14 REFRIGERATION CIRCUIT, COOLING ........2–24 2.14.1 Standard Mode .
Page 7 START-STOP OPERATION ..........4–6 4.5.1 Start-Stop Configuration .
Page 8 MAIN MICROPROCESSOR REPLACEMENT AND SETUP ......5–17 5.4.1 Pre-Replacement Steps ......... . . 5–18 5.4.2 Main Microprocessor Module Replacement .
Page 9 REFRIGERANT SYSTEM COMPONENT SERVICE ......8–35 8.9.1 Evaporator Coil ..........8–35 8.9.2 Condenser Coil .
Page 10 REFRIGERATION / TEMPERATURE CONTROL ........9–4 9.4.1 Unit Will Not Cool .
Page 11: Safety Precautions
Follow safe work practices and utilize the appropriate protective equipment at all times. 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.
Page 12: Specific Warning, Caution, And Notice Statements
Standby Electric Power Figure 1.1 Lockout/Tagout Be aware of HIGH VOLTAGE supplied at the power plug. Even with the unit off, power is present from the plug to the inside of the control box. Disconnect the high voltage source when performing service or main- tenance procedures and lockout/tagout the receptacle in accordance with your company procedures.
Page 13 WARNING Under no circumstances should ether or any other starting aids be used to start engine. WARNING Do not connect power plug to any electrical outlet without checking that it meets the 460/3/60 and 30 Amp electrical requirements of the unit. Ensure the power plug is clean and dry before connecting to any electrical outlet / receptacle.
Page 14 WARNING Inspect battery cables for signs of wear, abrasion or damage at every pre-trip inspection and replace if necessary. Also check battery cable routing to ensure that clamps are secure and that cables are not pinched or chafing against any components. WARNING Use the required protective eye wear and clothing when working with solvents.
Page 15 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. Electronic modules MUST be handled with care to prevent accidental damage or degradation from electrostatic discharge (ESD), contamination or abuse.
Page 16 Unit uses either R-404A or R-452A refrigerant and POE oil. The use of inert gas brazing proce- dures 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 17 Under no circumstances should anyone attempt to repair sealed module internal components. Should a problem develop with these components, contact your nearest Carrier Transicold dealer for replacement. Do not direct water or steam into the generator openings. Do not allow any soap and water solutions to enter the generator.
Page 18: Safety Decals
Safety Decals 62-11782 1–8...
Page 19 1–9 62-11782...
Page 20 62-11782 1–10...
Page 21 1–11 62-11782...
Page 22 62-11782 1–12...
Page 23 1–13 62-11782...
Page 24 62-11782 1–14...
Page 25: Unit Description
2.6). The unit may be equipped with an optional remote light bar which mounts separately on the front outside corner of the refrigerated compartment. Temperature control is provided by the Carrier Transicold APX control system (Refer to Section 2.6). Once the system is set at the desired temperature, the unit will operate automatically to maintain the desired temperature within very close limits.
Page 26: Engine
• The remote evaporators (Figure 2.4 Figure 2.5) are mounted in Compartments 2 and 3. Table 2–1 Model Chart Model Refrigerant Compressor Engine Engine Speed R-404A NDK537*6LFP2 (2-Compartment) High 1800 LB 18 Scroll V2203L-DI-EF01e NDK537*6LFP3 (3-Compartment) Low 1350 KG 8.16 R-452A NDK577*6LFP2 (2-Compartment) High 1800...
Page 27 Figure 2.1 Front View - Refrigeration System Components MOUNT ATT AS SHOWN PARTITION 10,11,12 5,6,7 1. Condenser Fans and Motors (CDM1 and CDM2) 12. Compressor Discharge Pressure Transducer (CDP - located in discharge line) 2. Ambient Air Temperature Sensor (AAT) 13.
Page 28: Generator (Gen)
Figure 2.2 Front View - Engine, Control System MOUNT ATT AS SHOWN PARTITION 19 18 23,24 22 21 20 1. Coolant Bottle 18. Mechanical Fuel Pump 2. Fuel Filter/Heater (FH)/Switch (FHTS) or Fuel 19. Engine Oil Fill and Dipstick Head Assembly 20.
Page 29 Figure 2.3 Evaporator Section - Grille Removed 17 16 13 12 1. Evaporator Coil 10. Return Air Temperature Sensor 2 (RAT2) (located behind bracket, if equipped) 2. Evaporator High Temperature Switch* (EVHTS) 11. Drain Pan Heater (HTR1) 3. Supply Air Temperature Sensor (1SAT) 12.
Page 30 Figure 2.4 Remote Evaporator, Single-Cover Removed 5, 6 FAN 2 FAN 1 1. Coil 6. Evaporator High Temperature Switch (HTA) 2. Heaters (RMT HTR1 and RMT HTR2) 7. Fan and Motor Assembly 3. Supply Air Temperature Sensor (RMT SAT) 8. Remote Control Box (option) 9.
Page 31 Figure 2.5 Remote Evaporator, Dual - Cover Removed 5, 6 FAN 2 FAN 1 1. Coil 8. Heater, RMT HTR2 2. Heater, RMT HTR1 9. Fan and Motor Assembly 3. Supply Air Temperature Sensor (RMT SAT) 10. Remote Control Box (option) 11.
Page 32 Figure 2.6 Control and Standby Boxes 1. Condenser Motor Contactor (CDCON1) 19. Power Supply Contactor (PSCON) 2. Condenser Motor Contactor (CDCON2) 20. Overload Ground Fault (OGF) 3. Evaporator Motor Contactor (1EVCON) 21. Contactor Control Board 1 (1CCB) 4. Heat Contactor 1 (1HTCON1) 22.
Page 33: Condensing Section
Its function is to indicate when the air cleaner filter element requires replacement. The system may be fitted with an intake air temperature sensor (IAT) and a manifold absolute pressure transducer (MAP). These sensors are installed when Carrier Transicold factory monitoring of the air system is required. 2.3.3 Engine Controls a.
Page 34: Compressor
2.3.4 Generator (GEN) The generator is directly bolted to the engine and supplies nominal 460V/3Ø/60Hz power when the engine is in high speed and nominal 345V/3Ø/45Hz power in low speed. The generator may be fitted with a generator temperature sensor (GNT). This sensor is installed when Carrier Transicold factory monitoring of the system is required.
Page 35: Economizer Transducer And Sensor
2.3.10 Economizer Transducer and Sensor a. Economizer Outlet Pressure Transducer (ECOP) The ECOP is located in the vapor injection line leaving the economizer. It provides the control system with economizer outlet pressure information to be displayed, recorded in DataLink data, and used to determine the required position of the economizer expansion valve.
Page 36: Evaporator Switches, Transducers And Sensors
2.4.3 Evaporator Switches, Transducers and Sensors a. Evaporator Outlet Pressure Transducer (EVOP) The EVOP is located in the suction line near the evaporator expansion valve. It provides the control system with evaporator outlet pressure information to be displayed, recorded in the DataLink data recorder and used to determine the required position of the evaporator expansion valve.
Page 37: System Operating Controls And Components
The box is located inside the evaporator cover, between RMT EVM1 and RMT EVM2. SYSTEM OPERATING CONTROLS AND COMPONENTS Temperature control is provided by the Carrier Transicold APX™ Control System. Once the system is set at the desired temperature, the unit will operate automatically to maintain the desired temperature within very close limits.
Page 38: Special Features
2.6.2 Special Features The following additional special features are incorporated into the Carrier Transicold APX control system: • An easy to read LCD display MessageCenter which clearly displays all required information • Unit Data and Advanced User selectable Functional Parameters •...
Page 39 Figure 2.7 Power Control Module 1. Fuse (F5 = 30 amp), Power Enable Relay Con- 12. Battery Charger Output Connection (T3) tact Power 13. Engine Preheater Power Connection (T4) 2. Fuse (F1 = 5 amp), Module Logic Circuit and 14. Fuse (F14 = 15 amp), Fuel Heater Power Buzzer Power 15.
Page 40 b. Main Microprocessor Module The main microprocessor module (MM) houses the main system microprocessor. The module does not contain any serviceable components. c. SVM Module The stepper valve module (SVM) houses the CSMV, EVXV and ECXV operating microprocessor. The module is totally self contained and does not contain any serviceable components.
Page 41 Figure 2.9 Display Module START/STOP DIESEL -9.9 28.1 36.2 TEMP COOL COOL COOL SETPOINT STATUS OK 1. Display Screen 7. Compartment 1, 2, 3 2. MENU key 8. Arrow Keys 3. DEFROST key 9. “=” (Select) Key 4. START/STOP - CONTINUOUS Key 10.
Page 42: Options
k. Display Module Keys • ALARM - The ALARM key allows viewing of the alarms stored in the system. • UP ARROW and DOWN ARROW - These keys allow scrolling through the selections presented. • EQUAL (ENTER) - The EQUAL key is used to confirm a selection and lock it into memory. •...
Page 43: Remote Temperature Sensor
2.7.3 Remote Temperature Sensor The unit is provisioned to connect remote temperature sensors (REMSN1, REMSN2 and REMSN3) through the REM connector to the second contactor control board (2CCB). The system may be configured to display the sensor reading in the Unit Data and to record the sensor reading in the DataLink data recorder.
Page 44: Engine Data
Engine Data Unit Specification Engine Model V2203L-DI-EF01e (26-00135) Rated Power 24.7 hp (18.5 KW) @1800 rpm Displacement 135 in (2.2 liters) No. Cylinders NOTE Refer to Table 2–1 for engine speed settings Coolant Capacity 2.4 U.S. gallons (9 liters) - 50/50 mix - never to exceed 60/40. Recommended to use Extended Life Coolant, Nitrite Free (ELC-NF), which is red in color and labeled for at least five years, 12,000 hours service life.
Page 45: Refrigeration System Data
2.10 Refrigeration System Data Unit Specification Defrost Air Switch (DAS) Initiates Defrost: 1.40 +/- .07 inch (35 ± 1.8 mm) Defrost Timer 1.5h, 3h, 6h, or 12 hours Evaporator High Temperature Opens, on a temperature rise, at 130 +/- 5°F (55 ± 2.8°C) Switch, Includes Remote Closes, on a temperature fall, at 100 +/- 7°F (37.8 ±...
Page 46 Unit Specification Detail Heaters Compartment 1, Heater 1 Number of heaters Three elements (1 assembly) Resistance, cold (20°C) 196 ohms ± 10 ohms per phase Current, Low Speed 3.5 amps nominal Current, High Speed 4.7 amps nominal Compartment 1, Heater 2 Number of heaters Four elements (1 assembly) Resistance, cold (20°C)
Page 47: Component Resistance And Current Draw
2.12 Component Resistance and Current Draw Component Ohms Amps Engine Preheater (EPH) 0.3 to 0.5 Ohms 38 - 46 Amps Fuel Heater (FH) Standard 0.96 Ohms ±10% 12.5 amps ± 10% Suction Side 1.3 Ohms ±10% 10.7 amps ± 10% Fuel Heater Relay (FHR) and Power Enable 90 Ohms between pins 85 and 86 Relay (PER)
Page 48: Refrigeration Circuit, Cooling
2.14 Refrigeration Circuit, Cooling When cooling, the unit operates as a vapor compression refrigeration system. The main components of the system are: • scroll compressor • air-cooled condenser • evaporator expansion valves • direct expansion evaporators • economizer circuit The refrigeration system will operate in one of three modes; Standard, Economized or Null. In addition, the system may also operate in Liquid Injection mode.
Page 49: Null Mode
2.14.3 Null Mode The system will enter null mode during periods where no cooling or heating is required and system is in continuous run. In null mode the compressor and heaters are shut down while evaporator fans continue to operate. The condenser fan will operate if engine cooling is required.
Page 50 Figure 2.11 Refrigeration Circuit Standard Mode EVOT/ EVXV EVOP Compartment 3 Evaporator(s) EVOT/ EVXV EVOP Compartment 2 Evaporator(s) EVOT/ EVXV EVOP Evaporator Distributor Condensor Fusible Plug Subcooler Reciever Liquid Line Filter Drier Service Valve LIV N/C ECXV Compressor Discharge Service Valve CSMV Economizer Economizer...
Page 51 Figure 2.12 Refrigeration Circuit Economized Mode EVOT/ EVXV EVOP Compartment 3 Evaporator(s) EVOT/ EVXV EVOP Compartment 2 Evaporator(s) EVOT/ EVXV EVOP Evaporator Distributor Condensor Fusible Plug Subcooler Reciever Liquid Line Filter Drier Service Valve LIV N/C ECXV Compressor Discharge Service Valve CSMV Economizer Economizer...
Page 52 62-11782 2–28...
Page 53: Operation
SECTION 3 Operation 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 properly trained personnel only. Figure 3.1 Display Module START/STOP DIESEL -9.9 28.1 36.2...
Page 54: Display Screens
Display Screens START/STOP DIESEL -9.9 28.1 36.2 TEMP Split Screen COOL COOL COOL SETPOINT STATUS OK START/STOP DIESEL COOL Viewing Menu Soft Key Typical Menu Selections Screen Press Menu Key to Scroll INTELLISET PRETRIP HOUR UNIT METER DATA SAMPLE SCREEN (1 OF 3) DISPLAYED ITEM #1 DISPLAYED ITEM #2...
Page 55: Auto Scroll
START/STOP DIESEL COOL Status Bar Setpoint .9 -10 Box Temperature BOX TEMP C1 STPT C1 MessageCenter Compartment STATUS OK (C1, C2, or C3) Auto Scroll There are two available display options, Split Screen (see previous page) and Auto Scroll (above). Split Screen shows each compartment Setpoint and Box Temperature in one view.
Page 56: Starting Unit
The unit will automatically start in the operating state it was in (Engine or Electric) when stopped. 2. The system will display the Carrier Transicold logo, display the default screen, present language selection and the hour meter readings (if configured to do so) along with a test flash of the alarm light. The system will then perform a start sequence, energize the buzzer, and then start the unit automatically.
Page 57: Inspect Mode
Inspect Mode Inspect mode provides an additional layer of safety for operators and technicians. Inspect mode should be used during all pretrip inspections of the unit. Inspect mode is a user activated feature that forces the unit to shutdown and remain in shutdown regardless of operating state.
Page 58: Switching Operating State
Switching Operating State If DIESEL is displayed, the unit is in Engine Operation START/STOP DIESEL -9.9 28.1 36.2 TEMP COOL COOL COOL SETPOINT STATUS OK WARNING Do not connect power plug to any electrical outlet without checking that it meets the 460/3/60 and 30 Amp electrical requirements of the unit.
Page 59 Engine to Electric 1. If the standby electric cable is not already in place, ensure the external power circuit breaker is OFF, and connect the cable to the unit receptacle. 2. Turn the external circuit breaker ON. 3. Press and release the “MENU” key until the “STANDBY” soft key is displayed. START/STOP ELECTRIC START/STOP...
Page 60: Intelliset
NOTES • The above settings are examples of possible settings. Factory IntelliSets are available from your authorized Carrier Transicold Truck/Trailer dealer • IntelliSet may be pre-programmed as “IntelliSleep” which allows Sleep mode to be entered by simply changing to that IntelliSet.
Page 61 START/STOP DIESEL COOL Viewing Menu Soft Key Selections Press Menu Key to Scroll INTELLISET PRETRIP HOUR UNIT METER DATA 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode and the default screen displayed, press the “=” key. If the screen shown just above step 3 below is displayed, pro- ceed to step 3.
Page 62: Pretrip
Pretrip Pretrip is a set of tests run by the control system to check unit operation. It is recommended that a Pretrip is run prior to loading the refrigerated compartment. It will indicate a failure if one is detected. A Pretrip can be started at any box temperature. If Pretrip is started while the unit is in a Start-Stop off cycle the unit will start during the course of the test.
Page 63 NOTE At any time during Pretrip, the UNIT DATA soft key may be pressed to allow the user to view the unit data screen (refer to Section 3.15). To return to Pretrip from the unit data screen, press the BACK soft key.
Page 64: Speed Rpm
• Condenser Fan Contactors #1 and #2 • Evaporator Fan Contactor • Compressor Contactor • Generator Contactor • Standby Contactor • Heater #1 Contactor, Main Compartment • Heater #2 Contactor, Main Compartment • Heater #1 Contactors, Compartment 2 and 3 •...
Page 65 Test 12 - Economizer Expansion Valve (ECXV) - This test is an operational check of the ECXV. If economizer outlet pressure doesn't change as expected with the ECXV closed then the P00173 CHECK ECONOMIZER alarm will be displayed. Test 13 - Liquid Injection Solenoid Valve (LIV) - This test checks the operation of the liquid injection solenoid valve.
Page 66: Turning Compartments On/Off
Turning Compartments On/Off START/STOP DIESEL 28.1 36.2 TEMP COOL COOL SETPOINT STATUS OK Compartment 1 Compartment 2 Compartment 3 Temp NA Temp 28.1 Temp 36.2 Cool Mode Cool Mode Setpoint -10 Setpoint 28 Setpoint 36 PRESS COMPARTMENT BUTTON TO TURN ON OR OFF TEMP SETPOINT C1 ON...
Page 67: Changing Setpoint
Changing Setpoint START/STOP DIESEL 28.1 36.2 TEMP COOL COOL SETPOINT STATUS OK Compartment 1 Compartment 2 Compartment 3 Temp NA Temp 28.1 Temp 36.2 Cool Mode Cool Mode Setpoint -10 Setpoint 36 Setpoint 28 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) and the default screen displayed (press the BACK or EXIT soft key if required), and the correct compartment highlighted 2.
Page 68: Start-Stop Operation
Start-Stop Operation START/STOP DIESEL -9.9 28.1 36.2 TEMP COOL COOL COOL SETPOINT START/STOP MODE SELECTED 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode press the START-STOP/CONTINUOUS key until “START/STOP” is highlighted. 2. The message “START/STOP MODE SELECTED” will be displayed in the MessageCenter for 10 seconds. 3.
Page 69: Continuous Operation
3.10 Continuous Operation CONTINUOUS DIESEL -9.9 28.1 36.2 TEMP COOL COOL COOL SETPOINT CONTINUOUS MODE SELECTED 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode press the START-STOP/CONTINUOUS key until “CONTINUOUS” is displayed and highlighted. 2.
Page 70: Data Recorder
3.11 Data Recorder The APX Control System contains a built-in DataLink data recorder with 3 megabytes of memory. The recorded data can be downloaded from the DataLink data recorder using either the TRU-Tech/TRU-View program or a Data Transfer USB memory device. The DataLink data recorder reads the same input information as the control system (Functional Parameters, Con- figurations, and Unit Data) at all times.
Page 71: Data Downloading
3.11.3 Data Downloading The data within the DataLink data recorder can be downloaded using either the TRU-Tech/TRU-View program with a PC-USB service cable connected to the USB interface port or with a Data Transfer USB memory device (refer to Section 5.3.3).
Page 72 PRINT TO SCREEN displays a graphical representation of the recorded data. To display the data: with PRINT TO SCREEN highlighted, press the “=” Key. NOTE: If Configured to do so, the System will prompt for entry of the data protect PIN code (refer to “PROTECT DATA WITH PIN”, Table 5–1).
Page 73: Manual Defrost
3.12 Manual Defrost START/STOP DIESEL DEFROST DEFROST SETPOINT DEFROST CYCLE STARTED 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) and the default screen displayed (press the BACK or EXIT soft key if required), press the MANUAL DEFROST key. NOTE This procedure may be demonstrated in PC mode but the unit will not actually enter defrost.
Page 74: Language Selection
3.13 Language Selection START/STOP DIESEL COOL Viewing Menu Soft Key Selections Press Menu Key to Scroll LANGUAGE DATA EXIT VIEW RECORDER NOTE Language Selection may not be available on early software revisions. 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode press the MENU key until LANGUAGE is displayed.
Page 75: Advanced User
3.14 Advanced User START/STOP DIESEL 28.1 36.2 TEMP COOL COOL SETPOINT STATUS OK NOTES • As shipped from the factory, the system will operate in the Driver mode. In the Driver mode, some data and menu items covered in this publication will not be available. •...
Page 76: Unit Data
3.15 Unit Data START/STOP DIESEL COOL Viewing Menu Soft Key Selections Press Menu Key to Scroll INTELLISET PRETRIP HOUR UNIT METER DATA 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode, press the MENU key until UNIT DATA is displayed. 2.
Page 77 UNIT DATA LIST ENGINE REMOTE SENSORS (Optional) SYSTEM INFORMATION* Fuel level Remote Sensor 1 Date* Battery: O.K. Remote Sensor 2 Time* Amp Draw (DC) Remote Sensor 3 Trailer/Asset/Car ID* Engine Coolant Temperature Unit Serial #* Unit AC Current #1 C1 REFRFRIGERATION SYSTEM Unit Model #* Unit AC Current #2* Discharge Pressure*...
Page 78: Discharge Pressure
Table 3–1 Unit Data DATA DEFINITION REFRIGERATION SYSTEM DISCHARGE PRESSURE Refrigerant pressure leaving the compressor COMPRESSOR DISCHARGE TEMP Refrigerant temperature leaving the compressor SUCTION PRESSURE Refrigerant pressure entering the compressor SUCTION LINE TEMP Refrigerant temperature entering the compressor EVAPORATOR PRESSURE C1/C2/ Refrigerant pressure leaving the evaporator EVAPORATOR OUTLET TEMP Refrigerant temperature leaving the evaporator...
Page 79: View Active Alarms
3.16 View Active Alarms ACTIVE ALARMS (2 OF 5) A00013 HIGH DISCHARGE PRESSURE A00022 LOW SUCTION PRESSURE A00028 CHECK REFRIG SYSTEM BACK CLEAR ALARMS 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode press the ALARM key.
Page 80: View Hour Meters
3.17 View Hour Meters START/STOP DIESEL COOL Viewing Menu Soft Key Selections Press Menu Key to Scroll INTELLISET PRETRIP HOUR UNIT METER DATA 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode, press the MENU key until HOUR METERS is displayed.
Page 81: Functional Parameters
3.18 Functional Parameters START/STOP DIESEL COOL Viewing Menu Soft Key Selections Press Menu Key to Scroll LANGUAGE DATA FUNCTIONS EXIT RECORDER 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode, and in the Advanced User mode, press the MENU key until FUNCTIONS is displayed. 2.
Page 82: Temp Control
Table 3–2 Functional Parameters FUNCTION PARAMETER SELECTIONS DESCRIPTION SPEED DELAY 0 MINS TO 255MINS Select the length of time the unit is to remain in low CONT: speed after starting, before transitioning to high (in 1 minute increments) speed, when in Continuous Operation. 0 MIN TEMPERATURE SETTINGS DEFROST...
Page 83 Table 3–2 Functional Parameters FUNCTION PARAMETER SELECTIONS DESCRIPTION START-STOP SETTINGS Time and Temperature values that control Start-Stop Operation are set in this section. The system may be config- ured so that: 1. the same settings apply to any setpoint = “Together” or 2.
Page 84 Table 3–2 Functional Parameters FUNCTION PARAMETER SELECTIONS DESCRIPTION OVERRIDES OVERRIDE DOOR If the switches are all configured “Switch Not In- SWITCH SHUTDOWN (DS) stalled”, this parameter will not display. NO = the system will respond to the switch as con- figured.
Page 85: Sleep Mode
3.19 Sleep Mode START/STOP DIESEL COOL Viewing Menu Soft Key Selections Press Menu Key to Scroll LANGUAGE DATA FUNCTIONS EXIT RECORDER 1. With the system powered up (START/RUN-OFF switch in the START/RUN position) or in PC mode, and in the Advanced User mode, press the MENU key until FUNCTIONS is displayed. 2.
Page 86 a. When “WAKE UP TIME” is set to OFF the unit will remain in Sleep mode until it is taken out manually (refer to the preceding “TO EXIT SLEEP MODE” instruction). b. When “WAKE UP TIME” is set to ON the “SET WAKEUP TIME” menu will become available. Pressing the = key will allow the user to select the date and time the unit is to automatically wake up.
Page 87: Stopping The Unit
3.20 Stopping the Unit START/STOP DIESEL COOL .3 34 BOX TEMPERATURE SETPOINT STATUS OK SROS To stop the unit, place the START/RUN-OFF switch in the OFF position. The unit will shutdown immediately while the system completes a shutdown sequence and then the LCD display will go blank. The engine will stop and the display will turn off.
Page 88: Option - Datatrak
Carrier Transicold has worked with approved communication providers with recommended installation locations, and wiring connections to Carrier units. Instructions for installing this equipment is supplied by each individual provider, and not by Carrier Transicold. Communications electrical harnesses are available from Carrier Transicold Perfor- mance Parts Group (PPG).
Page 89: Emergency Bypass Mode
Once Emergency Bypass mode has been activated, the unit will operate normally for 24 hours, a countdown timer will be shown on the display. This 24 hour window of operation will keep the load safe, and provide enough time to contact the nearest Carrier Transicold Service Center for repair of the unit. START/STOP DIESEL -9.9...
Page 90: Remote Panel
3.23 Remote Panel The unit may be fitted with an optional remote control panel. The remote panel, which is very similar to the display module, displays compartment setpoints, compartment temperatures and operating modes (heat, cool or defrost). The setpoint may be modified and the unit may be started and stopped using the remote panel. This compact remote panel can be mounted to suit the individual operator’s preferences - on the front bulkhead, or in the compartment (even in the wall itself).
Page 91 • Display the current mode of operation for each compartment, Section 3.1 • Intelliset selection, Section 3.5 • Initiate Pretrip, Section 3.6 • Initiate Manual Defrost/Defrost Indication, Section 3.12 • Control display indication lock, Section 3.15 Turning the Unit On/Off at the Remote Panel: The unit can be shutdown using either the remote panel or the SROS switch on the Main Panel.
Page 92 62-11782 3–40...
Page 93: Engine And Temperature Control
SECTION 4 Engine and Temperature Control NOTES 1. 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 MessageCenter, refer to the specific alarm description in Section 7 “Unit Control”...
Page 94: Engine/Electric Operation
If conditions are correct for operation, the main microprocessor will energize Power Enable Relay (PER) by provid- ing ground through PCM16 from 3MM18. Energizing PER closes its normally open contacts to provide power: • through fuse F10 to the main microprocessor at 3MM-34 and 3MM-23. •...
Page 95: Loss Of Standby Power
4.3.2 Loss of Standby Power When the unit is running on standby power and power is lost, alarm 00073 NO POWER-CHECK POWER CORD will be activated and the unit will shut down for 5 minutes. If standby power is restored the unit will restart in standby immediately.
Page 96: Engine Start-Up Sequence
Figure 4.1 Auto Start Sequence Table 4–1 Engine Preheat Time Engine Coolant Heat Time in Seconds ENGINE 0 - 180 Temperature Seconds Preheat Post Heat RUNNING following start (preheat) Less than 33°F (1.0°C) CRANK 33°F to 51°F (1.0° to 11°C) 3 to 10 (with preheat) Seconds...
Page 97: Transition To High Speed
If alarm 00129 CHECK ENG COOLANT SENSOR is active, the ambient temperature sensor will be used. If both alarms 00129 CHECK ENG COOLANT SENSOR 00121 CHECK AMBIENT AIR SENSOR are active the con- trol system assumes a temperature of less than 32°F (0°C) for the preheat timing. During the last five seconds of preheat OR for 5 seconds before a start attempt, if no preheat is required, the buzzer (B) is energized;...
Page 98 Start-Stop Operation Start-Stop is provided to reduce fuel or power consumption. This feature allows full automatic control of the unit by monitoring compartment temperature, battery condition and (when in Engine Operation) engine coolant tempera- ture. The main function of Start-Stop Operation is to shutdown the engine or compressor after certain conditions are met (to provide an efficient temperature control system) and to initiate a restart sequence after certain conditions are met.
Page 99 2. Engine coolant temperature has warmed Each time the unit is started in Engine Operation it must continue to run until the coolant temperature rises to 95°F (35°C) to ensure it has fully warmed up before shutdown is allowed. If only one compartment is operating and it is not in Pulldown or Pull-Up, that compartment will remain in operation with the compressor and heaters off and the evaporator fan(s) running.
Page 100 4.5.3 Re-Start Parameters While the unit is in a Start-Stop OFF Cycle, restart will be initiated when one of the following conditions occurs: NOTE In Start-Stop Operation, when the setpoint is in the frozen range (refer to Section 4.7.1), the unit will not restart when temperature is below setpoint except as indicated in the following.
Page 101: Null Mode
Continuous Operation In Continuous Operation, the unit will not shutdown except in response to a shutdown alarm. Temperature control in the compartments will operate under Pulldown, Pull-Up, Cooling, Heating and Null. Continuous Operation is normally used for fresh produce and other sensitive product loads. The Start-Stop/ Con- tinuous key is pressed to switch between Continuous Operation and Start-Stop Operation.
Page 102 When Null Mode is required and the system is operating in: • Engine/Start-Stop Operation, the unit (engine, compressor, condenser fans and evaporator fans) will shut down if the remaining Stop Parameters have been satisfied. • Engine/Continuous Operation, the compressor will shut down while the engine and evaporator fans continue to operate.
Page 103 Defrost Defrost is an independent cycle that overrides cooling and heating functions in order to de-ice the evaporator(s). When the unit enters defrost the MessageCenter will display DEFROST CYCLE STARTED for the first 10 seconds and then display the default message for the remainder of the cycle. DEFROST is displayed in the Operator Mes- sage Panel, along with the setpoint while the unit is in the defrost cycle.
Page 104: Defrost Termination
4.8.2 Defrost Modes There are two Defrost Modes available: NOTE When the unit is in either defrost mode and in engine operation: • The condenser fan will operate to supply air for the radiator. • The engine will operate in high speed when the heaters are energized (to supply power for the heaters). •...
Page 105 User Selected Override Operation Three optional software override programs are available to the user. These programs include: Priority Cooling, Supply Air Limit Control and Temperature Range Lock. Information on how the unit operates under these programs is provided in the following sections. 4.9.1 Priority Cooling Priority cooling applies when the unit is operating with more than one compartment enabled and if one compart-...
Page 106 When the Perish Sensitive Product Functional Parameter is set to OFF, the supply air temperature for either or both compartments will be the coldest temperature of 32°F (0°C) OR the calculated value of setpoint minus the configured Supply Air Limit value. When the Perishable Sensitive Product Functional Parameter is set to ON, the supply air temperature for either or both compartments will be the calculated value of setpoint minus the configured Supply Air Limit value.
Page 107 4.9.3 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. NOTE Range Lock is applicable to Compartment 1 only. When Compartment 1 is operating under Range Lock, all compartments will operate in Start/Stop Operation or Continuous Operation according to the setting for Compartment 1.
Page 108 Figure 4.3 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 109 When the unit restarts, it will return to Continuous Operation for a minimum of 15 minutes or the Minimum Run Time Functional Parameter setting, whichever time is longer. The original activation conditions must then be met in order for the unit to return to ProductShield Econo: Start/Stop. ProductShield Econo - Go To Start/Stop Examples: The following examples apply in situations where all other Start/Stop conditions have been met.
Page 110 b. ProductShield High Air ProductShield High Air allows the microprocessor to automatically switch the engine from normal to forced high speed, and thereby provide high evaporator air flow. This allows maximum product protection when certain condi- tions are met while providing for power savings when High Air is not required. Operation in High Air is controlled by four Configurations;...
Page 111 4.10 Preprogrammed Software Overrides 4.10.1 High Discharge Temperature The control system monitors the signal provided by the compressor discharge temperature sensor. If compressor temperature rises to the limit, the system will enter Liquid Injection Mode. In this mode the normally closed liquid injection valve (LIV) will be opened to allow flow of refrigerant into the economizer connection to cool the compres- sor.
Page 112 10.Low Suction Pressure Override If suction pressure is below -4 psig (-.27 bar) for > 20 seconds, inhibit high speed operation. Remain in low speed for 5 minutes and until the suction pressure > -3 psig (-.2 bar). 11. Perishable S/S High Speed Override With the system running in Start-Stop Run, Perishable Mode, the safety conditions and minimum on time are met, but the temperature condition is not met, run in high speed.
Page 113: Control System Interface
SECTION 5 Control System Interface Interface Methods There are four methods for interfacing with the APX Control System: 1. Driver/Advanced User Interface - Activities such as start, stop, Pretrip, reading alarms, reading data and changing Functional Parameters may all be performed using the display mounted keys (refer to Section 2.
Page 114 Technician mode should be canceled when work is complete. If Technician mode is not can- celed, Technician mode will be available for 60 minutes after the last key press without requir- ing a code, even after placing the SROS in the OFF and then back in the RUN/STOP position. 4.
Page 115 3. The hour meter screen will display with a 15 second timeout. Press the ▲ or ▼ key to scroll through the available selections. With the desired sub-menu highlighted, press the “=” key to view the data. Standby Protect Hours STANDARD HOUR METERS (2 OF 3) OTHER METERS &...
Page 116 Figure 5.3 Inactive Alarms ACTIVE ALARMS NO ACTIVE ALARMS BACK CLEAR INACTIVE ALARMS ALARMS INACTIVE ALARMS I00093 CHECK START-UP BUZZER P00144 CHECK UL1 CIRCUIT P00141 PRETRIP STOPPED BY USER CLEAR CLEAR BACK EXIT INACTIVE 1. Enter the Technician Mode, as described in Figure 5.1, then press the ALARM key.
Page 117 5.2.3 Configuration Settings Configuration settings match the APX Control System to the unit and define APX Control System action under var- ious operational conditions. Instructions for working with Configurations are provided in Figure 5.4. 1. Enter the Technicians Menu, highlight CONFIGURATION SETTINGS and then press the “=” key as described Figure 5.1.
Page 118 11. To change a value selection screen, press the “=” key with the desired Configuration sub-menu highlighted as in Sample Screen A. The individual Configurations within the sub-menu will display as in Sample Screen B. Press the ▲ or ▼ key to scroll through the individual Configurations. The individual Configurations will highlight as the list is scrolled.
Page 119 5.2.4 Component Test Mode Component Test mode allows the technician to energize individual circuits for five minutes at a time. The unit is not allowed to start when the System is in Component Test mode. Instructions for entering the Component Test mode are provided in Figure 5.5.
Page 120 4. When a component is energized in Component Test mode, the AMP DRAW display initially shows the current draw of the system, after a few seconds the display will change to reflect the current draw of the system plus the added component.
Page 121 Instructions for using USB memory devices with the APX APX Control System are provided in the following sub- paragraphs. 5.3.1 Data Transfer USB Memory Device Carrier Transicold APX USB Flash Drive, CTD P/N 12-00814-00 must be used: • The device may be used to enter PC mode. •...
Page 122 1. With the START/RUN - OFF switch in the OFF position, remove protective cover from the USB interface port and insert a Data Transfer USB. The USB activity LED will flash, the Carrier Transicold logo will display and then the MessageCenter will display one or more USB soft key descriptions.
Page 123 2. Press the “PC MODE’ soft key. DO NOT remove USB or cable at this time. 3. The MessageCenter will display “PC MODE”. The System is now in PC mode. The purpose of PC mode is to allow demonstration of the System features and allow changes to the System while the unit is not actually run- ning.
Page 124 5.3.3 Downloading Data Files Instructions for downloading data from the DataLink data recorder to a Data Transfer USB memory device are pro- vided in Figure 5.7. Figure 5.7 Downloading Data Files START/STOP DIESEL -9.9 28.1 36.2 TEMP COOL COOL COOL SETPOINT READING USB USB Port...
Page 125: Installing Software
Whenever installing new software, it is always a good idea to start the unit and give it a quick check over prior to performing the operation. All units should have the software upgraded to the latest ver- sion, provided for Carrier Transicold dealers on the TransCentral web site. Figure 5.8 Installing Software...
Page 126 NOTE If Configured to do so, the System will prompt for entry of the data protect PIN code (refer to “PRO- TECT DATA WITH PIN”, Table 5–1). 3. In less than two minutes time, the MessageCenter will display the USB soft keys. (NOTE: The INSTALL SET- TINGS soft key will not display if files are not loaded in the CONFIG folder and DOWNLOAD DATA does not dis- play if the DOWNLOAD folder is not present).
Page 127: Transferring Configuration Files
5.3.5 Transferring Configuration Files Instructions for installing configuration files into the APX Control System from a Data Transfer USB memory device are provided below. Configuration (*.set) files consist of one of the following types of files. A “Configuration” file contains a complete set of Configuration, Functional Parameter and Data Recorder settings for the system. An “IntelliSet”...
Page 128 8. Reinstall USB cover. 5.3.6 TRU-Tech & TRU-View The TRU-Tech & TRU-View program allows the user to access and download data using a computer, when the unit is not running and without starting the eight-hour DataLink data recorder timer. The application interface will provide additional programming and configuring capabilities that will not be available using the display mounted keys.
Page 129 When field diagnosis of a Carrier Transicold refrigeration unit determines that an APX main microprocessor is not performing properly and must be replaced the replacement microprocessor must be setup for this unit and customer by entering the required Configurations, Functional Parameters and DataLink data recorder settings.
Page 130 The preferred method for setup of the main microprocessor is to use the display mounted keys or a Data Transfer USB memory device. All required changes, except unit specific and time sensitive data, may be performed using the USB memory device. If a USB is not available the main microprocessor may be setup using TRU-Tech.
Page 131 5.4.3 Main Microprocessor Setup 1. Ensure that the replacement main microprocessor is in place, all wires connected and the negative battery cable is reconnected. 2. Make sure the latest software has been loaded to ensure all modules are compatible, refer to Section 5.3.4 When a module is replaced, software should be upgraded before switching the unit on.
Page 132 NOTES 1. If a Data Transfer USB memory device will be used to setup the remainder of the main microprocessor settings, proceed to Section 5.4.7 after the settings are entered. 2. After the unit specific and time sensitive configuration settings are complete use the ▲ or ▼ key until “CON- FIGS COMPLETE, = TO EXIT”...
Page 133: Configuration Settings
Table 5–1 Configuration Settings Configuration Selections Description CONFIGURATION SETTINGS Press the ▲ or ▼ keys to display configurations: UNIT IDENTIFICATION CONFIGURATION SETTINGS (1 OF 11) SETPOINT(S) & RANGE LOCK UN IT IDENTIFICATION START-STOP SETTINGS SETPOINT(S) & RANGE LOCK INTELLISET & PRODUCT SHIELD ENGINE ALARMS START-STOP SETTINGS ALARM SETTINGS...
Page 134 Table 5–1 Configuration Settings (Continued) Configuration Selections Description SETPOINT(S) & RANGE LOCK DECIMAL DISPLAYED DISPLAYED = setpoint will be shown with a decimal and temperatures may be selected to a tenth of a degree. NOT DISPLAYED NOT DISPLAYED = setpoint will not be shown with a decimal.
Page 135 Table 5–1 Configuration Settings (Continued) Configuration Selections Description S/S PARAMETERS TOGETHER TOGETHER = When the Minimum Run Time, Minimum Off Time, Restart Temperature, Maximum Off Time, and SEPARATE Override Temperatures are set in the Functional Param- eter List, the same values will be used for both Frozen and Perishable setpoints.
Page 136 Table 5–1 Configuration Settings (Continued) Configuration Selections Description PRODUCTSHIELD: OFF = ProductShield Econo is OFF ECONO GO TO S/S GO TO START/STOP = Allows unit to be set for and op- erate in Continuous Run until ambient temperature falls GO TO CONT within a user-defined range when unit will go to START/ STOP.
Page 137 Table 5–1 Configuration Settings (Continued) Configuration Selections Description HIGH AIR MAX. TEMP OFF = There is no upper limit for this parameter. -19°F to +119°F Select the upper limit of the ambient range desired for (-28.3°C - +48.3°C) this parameter. Refer to Section 4.9.4 for more informa- in 0.5°F - °C increments...
Page 138 Table 5–1 Configuration Settings (Continued) Configuration Selections Description FUEL HEATER NOT INSTALLED NOT INSTALLED = A Fuel Heater is not installed. INSTALLED INSTALLED = A Fuel Heater is installed. MAX THROTTLE 80% - 125% IF THIS CONFIGURATION IS AVAILABLE, USE FAC- POSITION TORY DEFAULT ONLY, DO NOT OPERATE WITH A 95% default...
Page 139 Table 5–1 Configuration Settings (Continued) Configuration Selections Description COMPRESSOR ALARM YES / NO If the “Compressor Alarm Shutdown” option has been in- stalled (refer to Unit Data), this setting will be available. SHUTDOWN YES = The unit will shutdown and not restart when alarm 00013 HIGH DISCHARGE PRESSURE, 00017 HIGH...
Page 140: Door Switch
Table 5–1 Configuration Settings (Continued) Configuration Selections Description (METER NUMBER) OFF = This selection will turn this meter OFF (will not dis- CONFIGS play). ENGINE HOURS Meters available are PM-1 ENGINE HOURS = this meter will count the engine SWITCH ON HOURS thorough PM-5.
Page 141 Table 5–1 Configuration Settings (Continued) Configuration Selections Description DOOR SWITCH ALARM ONLY ALARM ONLY = When Door switch indicates that the SHUTDOWN door is open, a warning alarm will be displayed in the UNIT SHUTDOWN MessageCenter. LOW ENGINE SPEED UNIT SHUTDOWN = When Door switch indicates that DATA the door is open, a warning alarm will be displayed in the RECORDER ONLY...
Page 142 Table 5–1 Configuration Settings (Continued) Configuration Selections Description REMOTE SWITCH SHUT- ALARM ONLY ALARM ONLY = When the switch is activated, a warning DOWN 1, 2, 3, or 4 alarm will be displayed in the Message- Center. UNIT SHUTDOWN UNIT SHUTDOWN = When the switch is activated, a LOW ENGINE SPEED warning alarm will be displayed in the Message- Center, DATA...
Page 143 Table 5–1 Configuration Settings (Continued) Configuration Selections Description LIGHT BAR NOT INSTALLED NOT INSTALLED = a remote light bar is not installed 2 light = a two light bar is installed. 2 LIGHT NATURAL DEFROST YES / NO YES = Natural defrost will be allowed NO = Natural defrost will not be allowed Refer to Section 4.8 for more information on natural defrost) BATT CHARGER...
Page 144 Table 5–1 Configuration Settings (Continued) Configuration Selections Description HIGH SPEED PULLDOWN YES / NO When active, this logic indicates if temperature limits reg- ulating the exit of pulldown mode are modified or not. YES = Unit will continue in High Speed until it reaches setpoint.
Page 145: Unit Operation
Table 5–1 Configuration Settings (Continued) Configuration Selections Description RAIL SETTINGS UNIT OPERATION STANDARD RAIL = The system is set to control Rail refrigeration op- eration. When this Configuration is set to “RAIL” the fol- RAIL lowing “VEHICLE ID”, “RAIL SHUTDOWN OVERRIDE” and “RAIL OVERRIDE RESTARTS”...
Page 146 62-11782 5–34...
Page 147 SECTION 6 MessageCenter Messages MessageCenter Messages The following table lists common messages which do not appear in other lists in this manual and a description of their meaning. Refer to Section 9 for a list of Alarm messages. Refer to Section 3.15 for a list of Unit Data mes- sages.
Page 148 Table 6–1 MessageCenter Messages Message Description DOOR OPEN A refrigerated compartment door is open. DOOR OPEN - LOW SPEED A refrigerated compartment door is open forcing the unit to run in low speed. EES SERVICE REQUIRED The EES requires service. ENTERING SERVICE MODE The initial message for Service mode.
Page 149 Table 6–1 MessageCenter Messages Message Description PRESTRIP STOPPED BY USER Pretrip has been stopped by user. PRODUCTSHIELD: ECONO ON The unit is operating in ProductShield Econo which overrides normal unit Start-Stop or Continuous Run operation. Refer to Section 4.9.4. PRODUCTSHIELD: HIGH AIR ON The unit is operating in ProductShield High Air which overrides normal unit speed operation.
Page 150 Table 6–1 MessageCenter Messages Message Description TECHNICIAN RESET REQUIRED Alarm AL00011 or AL00012 has been activated three times in the last (AL00021) two hours and the unit has been locked out. Refer to Section 7 for fur- ther information. TIME SELECTION NOT CHANGED A time change was started but not entered (saved) in Configuration List.
Page 151: Alarm Troubleshooting
SECTION 7 Alarm Troubleshooting WARNING APX Control System equipped units may start automatically at any time the START/ RUN-OFF switch is in the START/RUN 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.
Page 152 Notes NOTE Note 1: The active alarm list may be cleared when in the Driver Mode or Advanced User Mode by pressing the CLEAR ALARMS soft key. That is: the alarm is “cleared” from the active alarm list and moved to the inactive alarm list for later review if the condition that caused the alarm has been cor- rected.
Page 153: Corrective Actions
Alarms 00001 LOW FUEL LEVEL WARNING NOTE This is an optional alarm which will only occur when a fuel level sensor is present & configured “YES”. • ACTIVATION: The ENCU circuit is energized (3MM-9) and fuel level is 15% or less for more than 30 seconds. •...
Page 154 00012 HIGH COOLANT TEMPERATURE • ACTIVATION: Condition 1: Ambient temperature is below 120°F (48.9°C) and engine coolant temperature is above 230°F (110°C). Condition 2: Ambient temperature is above 120°F (48.9°C) and, engine coolant temp is above 241°F (116°C). Condition 3: Ambient temperature is below 120°F (48.9°C) and the engine coolant temperature has remained between 230 and 241°F (110 and 116°C) for more than 5 minutes.
Page 155 00012 HIGH COOLANT TEMPERATURE - CONTINUED 5. Check Engine Coolant Temperature Sensor Wiring a. Inspect harness & control box connector pins & terminals. (See wiring schematic Section 10.3). Verify no physical damage to harness and no damage or corrosion in connectors. b.
Page 156 00013 HIGH DISCHARGE PRESSURE • ACTIVATION: Compressor discharge pressure switch (HPS) contacts are open. HPS contacts open when the discharge pressure rises. Refer to Section 2.10. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Refrigeration system shutdown and alarm with PSCON still ener- gized.
Page 157: Check Wiring
00014 HIGH A/C AMPS • ACTIVATION: AC Current Sensor 1, 2, or 3 is greater than 28.5A for 3 seconds. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Refrigeration system shutdown and alarm with PSCON still energized.
Page 158 00015 BATTERY VOLTAGE TOO HIGH • ACTIVATION: Voltage at the main microprocessor is greater than 17 VDC. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Refrigeration system shutdown and alarm with PSCON still energized. • RESET CONDITION: Auto reset after 15 minutes when the voltage at the main microprocessor is between 11 and 14 VDC, or alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Page 159 00016 BATTERY VOLTAGE TOO LOW • ACTIVATION: Voltage at the main microprocessor is less than 10 VDC (except when the engine starter is engaged). • UNIT CONTROL: Engine and Electric Operation: Shutdown and alarm. Alarm only if activated while start- ing unit.
Page 160 00017 HIGH COMP DISCHARGE TEMP • ACTIVATION: “Check Compressor Discharge Sensor” alarm not active (if alarm is active, refer to 00125 CHECK COMP DISCHARGE SENSOR first) and: discharge temp rises above 285.1°F (140.6°C) for 30 seconds, or discharge temp rises above 295.0°F (146.1°C). •...
Page 161 00018 LOW REFRIGERANT PRESSURE • ACTIVATION: Suction Pressure has been less than -6.3 psig (-0.43 bar) for the Low Suction Pressure Configuration time or 10 seconds (whichever is less). • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Alarm only or (if configured for shutdown) refrigeration system shutdown and alarm with PSCON still energized.
Page 162 00019 LOW FUEL SHUTDOWN NOTE This is an optional alarm. This alarm will only occur if the Fuel Level Sensor Configuration is YES. • ACTIVATION: The fuel level is 10% or less for more than 60 seconds AND Alarm 000126 - “Check Fuel Sensor Circuit”...
Page 163 00021 TECHNICIAN RESET REQUIRED • ACTIVATION: The High Engine Temp Shutdown Configuration and/or Engine Oil Pressure Shutdown Configuration is/are set to YES, and either Alarm 00011 - Low Engine Oil Pressure, or Alarm 00012 - High Coolant Temperature has become active and shut the unit down three times within the past 2 hours. •...
Page 164 00022 LOW SUCTION SUPERHEAT • ACTIVATION: “Check Suction Temperature Sensor” and/or “Check Evaporator Temperature Sensor” alarms are not active (refer to Alarm 000127 and/or 000131 first) and: Compressor suction superheat (Compressor Suction Temperature (CST) minus saturated tempera- ture for Compressor Suction Pressure (CSP) is less than 8°F (4.4°C) for more than 3-4 minutes. •...
Page 165 00023 A/C CURRENT OVER LIMIT • ACTIVATION: The high voltage amp draw is over the limit shown in the following table for more than 10 sec- onds. CONDITION DRAW Engine High / Low Speed, Standby Cool or Pretrip / Engine Off Any 2 compartments or 3 compartments enabled: Engine Off Engine High Speed Heat Engine Low Speed or Standby Heat...
Page 166 00023 A/C CURRENT OVER LIMIT - CONTINUED 4. Check High Voltage Components Amp Draw (with the unit operating) a. Check condenser fan amp draw on all legs. (CDCON) b. Check evaporator fan motor amp draw on all 3 legs (1EVCON, RMT EVCON) c.
Page 167: Charge Pressure
00024 COMPRESSION RATIO EXCEEDED • ACTIVATION: If the compressor compression ratio is greater than 21 for 20 seconds. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Refrigeration system shutdown and alarm with PSCON still ener- gized.
Page 168 00027 HIGH SUCTION PRESSURE • ACTIVATION: The refrigeration system is running and the suction pressure has been greater than 98 psig (6.7 bar) for more than 10 minutes. • UNIT CONTROL: Engine Operation: Alarm only or (if configured for shutdown) engine and unit shutdown and alarm.
Page 169: Corrective Actions
00028 CHECK REFRIGERATION SYSTEM • ACTIVATION: The refrigeration system is running and the discharge pressure is less than 5 psig (0.34 bar) higher than suction pressure for more than 30 seconds. • UNIT CONTROL: Engine Operation: Alarm only or (if configured for shutdown) engine and unit shutdown and alarm.
Page 170 00031 FAILED TO START - AUTO MODE • ACTIVATION: Engine has tried to start three times unsuccessfully in the auto start mode. • UNIT CONTROL: Engine Operation: Shutdown and alarm. Electric Operation: Alarm condition only. • RESET CONDITION: Alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Page 171 00034 ENGINE FAILED TO STOP • ACTIVATION: When in Engine Operation, engine is turning more than 500 RPM for 20 seconds after unit shutdown or cycled off. Or, Oil Pressure switch is closed longer than 20 seconds after unit shutdown or cycle off.
Page 172: Engine Rpm
00035 CHECK STARTER CIRCUIT • ACTIVATION: Engine speed fails to reach 50 rpm during 2 start attempts. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: This alarm will not activate in Electric Operation. • RESET CONDITION: Alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Page 173 00036 CHECK COOLANT TEMPERATURE • ACTIVATION: Coolant temperature is below 32°F (0°C) after the engine has been running for 5 minutes. • UNIT CONTROL: Engine Operation: Alarm only. Electric Operation: This alarm will not activate in Electric Operation. • RESET CONDITION: Auto reset when coolant temperature is higher than 36°F (2.2°C) or alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Page 174 00038 CHECK HIGH SPEED RPM • ACTIVATION: The APX Control System is calling for high speed operation, and engine speed is less than 1650 rpm, or greater than 2075 rpm for more than 60 seconds (120 seconds when the APX Control Sys- tem calls for a change from low to high speed, or when unit first starts).
Page 175 00039 CHECK ENGINE RPM • ACTIVATION: In Engine Operation and Alarm 00130 is not active and Engine speed is greater than 1300 rpm for 3 seconds and: Engine speed is greater than 2100 rpm for 5 minutes or Engine speed is less than 1250 rpm for 5 minutes or Engine speed is less than 1200 rpm for 10 seconds •...
Page 176 00040 CHECK ENGINE PREHEAT CIRCUIT • ACTIVATION: Engine Operation: Intake Air Heater amperage is less than 25 Amps, or greater than 70 Amps after 14 seconds of glow time (NOTE: This can only occur when the Engine Coolant Temperature is below 50°F (11°C) due to pre-heat time allowed. Refer to Table 4–1 for pre-heat times.
Page 177 00041 ENGINE STALLED • ACTIVATION: The APX Control System is calling for the engine to run, Engine speed sensor is good, and engine speed is less than 10 rpm; or the A00130 (Check Engine RPM Sensor) alarm is ON, and the Oil Pressure switch contacts are open, and AL00013 (High Discharge Pressure) is not active.
Page 178: Check Engine
00041 ENGINE STALLED - CONTINUED 5. Check Engine Speed Sensor (ENSSN) - Inspect harness, connector pins & terminals. (See wiring sche- matic Section 10.) Verify no physical damage to harness, and no damage, moisture, or corrosion in con- nectors. 6. Check Engine Air-Intake System a.
Page 179 00051 ALTERNATOR (BATTERY CHARGER) NOT CHARGING • ACTIVATION: Unit is running and the current flow is less than -1.0 amps between the alternator and the battery for 3 continuous minutes. • UNIT CONTROL: Engine Operation: Alarm only or (if Alternator Check Shutdown configuration is set to YES (configured for shutdown) engine and unit shutdown &...
Page 180 00053 BOX TEMP OUT-OF-RANGE NOTE: Corresponding alarm for Compartment 2 is AL00062, for Compartment 3 AL00063. • ACTIVATION: Condition One: If the unit is running in Pulldown and the SAT is not greater than 1°F (0.56°C) below the RAT or if the unit is running in Pull-Up and the SAT is not above the RAT, the configured action (Alarm only after 30 minutes or Alarm and Shutdown after 45 minutes) will be activated.
Page 181 00053 BOX TEMP OUT-OF-RANGE - CONTINUED NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the alarm(s). (Refer to Note 1 in Notes Section.) Operate the unit through the appropriate modes to see if any active alarm occurs.
Page 182 00054 DEFROST NOT COMPLETE • ACTIVATION: Defrost cycle did not complete within 45 minutes • UNIT CONTROL: Engine and Electric Operation: Alarm only. While this alarm is active, the Defrost Timer will be set to initiate a defrost cycle 90 minutes (1.5 hours) of unit running time after the alarm comes on. •...
Page 183 00055 CHECK DEFROST AIR SWITCH • ACTIVATION: The defrost air switch has called for a defrost cycle within 8 minutes of a defrost termina- tion for 2 consecutive defrost cycles. (The air switch contacts were closed continuously for 15 seconds before the defrost cycle was started.) •...
Page 184 00057 CHECK REMOTE SWITCH 1 (REMS1) • ACTIVATION: REMS1 is set to trigger an alarm if the switch is activated (opened or closed, depending on switch type) for more than five seconds. • UNIT CONTROL: Engine and Electric Operation: May be configured as alarm only, alarm and force low engine speed, or alarm and shutdown.
Page 185 00058 CHECK REMOTE SWITCH 2 (REMS2) • ACTIVATION: Remote Switch 2 is set to activate an alarm if the switch is activated (opened or closed, depending on switch type) for more than five seconds. • UNIT CONTROL: Engine and Electric Operation: May be configured as alarm only, alarm and force low engine speed, or alarm and shutdown.
Page 186 OK. b. Replace and setup main microprocessor. Refer to Section 5.4. NOTE Specific Configurations may be found on the TransCentral Website (Authorized Carrier Transicold Dealers only). 00060 DATALOGGER (DataLink data recorder) TIME WRONG • ACTIVATION: The real time clock in the DataLink data recorder does not contain a valid date.
Page 187 00061 DOOR OPEN (DS1) • ACTIVATION: DS1 is set to trigger an alarm if the switch is activated (opened or closed, depending on switch type) for more than five seconds. • UNIT CONTROL: Engine and Electric Operation: May be configured as alarm only, alarm and force low engine speed, or alarm and shutdown.
Page 188: Out Of Range
00062 C2 BOX TEMP OUT-OF-RANGE Refer to procedure for alarm 00053 BOX TEMP OUT-OF-RANGE. 00063 C3 BOX TEMP OUT-OF-RANGE Refer to procedure for alarm 00053 BOX TEMP OUT-OF-RANGE. 00066 CHECK EVAP SENSOR GROUP • ACTIVATION: The unit has been shut off for at least 48 hours. During wake up, a temperature comparison of the Evaporator Temperature Sensors (RAT, SAT, DTT) is performed.
Page 189 00073 NO POWER-CHECK POWER CORD • ACTIVATION: The unit is set to operate in electric AND no AC power; incoming voltage at the High Volt- age Transformer (HVT) is less than 300VAC. • UNIT CONTROL: Engine Operation: System will remain in Engine Operation. Electric Operation: If the “NO A/C POWER”...
Page 190 00074 PHASE REVERSED • ACTIVATION: If the system is in electric mode and the START/RUNSTART/RUN Switch is ON and the system cannot properly detect the phase. • UNIT CONTROL: Engine Operation: Alarm only. Electric Operation: Required Shutdown. • RESET CONDITION: Auto reset when and the phase reversed switch = phase reverse okay for 2 sec- onds, or switch to diesel mode.
Page 191 00075 COMP MOTOR OVERLOAD • ACTIVATION: If alarm 00022 LOW SUCTION SUPERHEAT, 00027 HIGH SUCTION PRESSURE and/or 00028 CHECK REFRIGERATION SYSTEM was triggered with current below 5.5 amps, this alarm will also trigger or on restart from alarm 00022, 00027 and/or 00028 trigger on if compressor current does not rise above 1 amp, and alarm 00013 HIGH DISCHARGE PRESSURE (High Discharge Pressure) is not...
Page 192: High Discharge Pressure
00076 CONDENSER MOTOR OVERHEATED • ACTIVATION: The condenser fan motor Internal Protectors (IP-CDM1) circuit is open and alarm 00013 HIGH DISCHARGE PRESSURE is not active. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Refrigeration system shutdown and alarm with PSCON still ener- gized.
Page 193 00076 CONDENSER MOTOR OVERHEATED - CONTINUED 7. Check IPC circuit a. Use Component Test Mode to energize CDCON1 circuit. (Refer to Section 5.2.4.) Output will come on. b. Verify 12 VDC at CDCON1 A1 and A2. Inspect wiring between condenser and CCB. c.
Page 194 00077 EVAP MOTOR OVERHEATED • ACTIVATION: The evaporator fan motor Internal Protector (IP-EVM) is open and alarm 00013 HIGH DIS- CHARGE PRESSURE is not active. • UNIT CONTROL: Engine and Electric Operation: Shutdown (Main compartment outputs only) and alarm. • RESET CONDITION: Alarm 00109 CHECK 1EVCON COIL is active.
Page 195 00093 CHECK STARTUP BUZZER • ACTIVATION: The Buzzer (B) circuit is shorted or open. (The Buzzer output from the microprocessor [PCM-23 to 3MM15] is negative, so the circuit will not be shorted to ground, but is shorted either within the Buzzer itself, or to a positive wire.) •...
Page 196 00095 CHECK CDCON1 COIL • ACTIVATION: Condenser fan motor contactor (CDCON) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 197 00096 CHECK GENCOIL COIL • ACTIVATION: Generator contactor (GENCON) circuit is shorted or open. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 198 00098 CHECK HIGH TEMP THERMOSTAT • ACTIVATION: With the Main Power switch toggled out of the OFF position, the EVHTS circuit is open. • UNIT CONTROL: Engine and Electric Operation: Alarm AND no heat allowed. • RESET CONDITION: Auto Reset when the EVHTS circuit is okay for 15 minutes, or alarm may be manu- ally reset via keypad or by turning the unit off, then back on again.
Page 199 00100 OVERLOAD/GROUND FAULT • ACTIVATION: Engine or Electric Operation is being called for and the overload ground fault module is reading more than 40 Amps on any A/C current leg OR there is A/C voltage leaking to ground of more than 150 Milli-amps.
Page 200 00101 C2 EVAP MOTOR OVERHEATED • ACTIVATION: The 2nd compartment evaporator fan motor Internal Protector (IP-EVM) is open. • UNIT CONTROL: Engine and Electric Operation: Shutdown compartment 2 only. • RESET CONDITION: Alarm 00110 CHECK 2EVCON COIL is not active. Auto Reset after a 5 minute off time when motor overload input is within limits or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 201 00102 C3 EVAP MOTOR OVERHEATED • ACTIVATION: The 3rd compartment evaporator fan motor Internal Protector (IP-EVM) is open. • UNIT CONTROL: Engine and Electric Operation: Shutdown compartment 3 only. • RESET CONDITION: Alarm 00111 CHECK 3EVCON COIL is not active. Auto Reset after a 5 minute off time when motor overload input is within limits or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 202 00103 CHECK 2HTCON1 COIL • ACTIVATION: Heater Contactor 1 in Compartment 2 (2HTCON1) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 203 00104 CHECK 2HTCON2 COIL • ACTIVATION: Heater Contactor 2 in Compartment 2 (2HTCON2) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 204 00105 CHECK 3HTCON1 COIL • ACTIVATION: Heater Contactor 1 in Compartment 3 (3HTCON1) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 205 00106 CHECK 3HTCON2 COIL • ACTIVATION: Heater Contactor 2 in Compartment 3 (3HTCON2) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 206 00109 CHECK 1EVCON COIL • ACTIVATION: Evaporator fan motor contactor (1EVCON) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 207: Check Sensor
00114 CHECK LIV CIRCUIT • ACTIVATION: A problem has been detected in the LIV coil circuit. If this alarm is activated while the con- trol system is calling for LIV to be energized, the circuit is detected shorted. If this alarm is activated at any other time, the circuit is detected open.
Page 208 00122 CHECK RETURN AIR SENSOR • ACTIVATION: Return Air Temperature Sensor (RAT) is not within range of -53 to +158°F (-47 to +70° C). • UNIT CONTROL: Engine and Electric Operation: If Alarm 00123 CHECK SUPPLY AIR SENSOR is not active: Alarm and switch to supply air control. If Alarm 00123 CHECK SUPPLY AIR SENSOR is active: Alarm and the System will enter Cargo Pro-...
Page 209 00124 CHECK DEFROST TERM 1 SENSOR • ACTIVATION: Defrost Termination Temperature Sensor (1DTT) is not within the range of -53° to +158°F (-47° to +70° C.) • UNIT CONTROL: Engine and Electric Operation: If Alarm 00022 LOW SUCTION SUPERHEAT is not active: Alarm and initiate defrost if 1RAT is below 45°F (7.2°C).
Page 210 00126 CHECK FUEL SENSOR CIRCUIT • ACTIVATION: The fuel level sensor is configured “YES” and the reading (in the Unit Data) is less than 2% for 30 seconds. • UNIT CONTROL: Engine Operation: Alarm Only. Electric Operation: This alarm does not activate in electric operation. •...
Page 211 00128 LOW/UNBALANCED A/C AMPS • ACTIVATION: The compressor is on and AC Current Sensor 1, 2 or 3 is less than 5 amps for 10 seconds. OR, if the difference between AC Current 1 and AC Current 2, 2-3 and 1-3 is greater than 10 amps for 10 seconds.
Page 212 00130 CHECK ENGINE RPM SENSOR • ACTIVATION: If ambient temperature is above 32°F (0°C), and this is the second or third start attempt, and the engine oil pressure switch is closed (oil pressure good), and engine speed is sensed at less than 1000;...
Page 213 00131 CHECK EVAP TEMP SENSOR • ACTIVATION: Evaporator Outlet Temperature Sensor (EVOT) is not within the range of -53 to +158°F (-47 to +70°C) • UNIT CONTROL: Engine and Electric Operation: Alarm only and superheat for EVXV will be calculated using SAT or DTT if alarm 00123 (Check Supply Air Sensor) is active.
Page 214 00133 CHECK REMOTE TEMP SENSOR 1 00134 CHECK REMOTE TEMP SENSOR 2 00135 CHECK REMOTE TEMP SENSOR 3 • ACTIVATION: Remote Temperature Sensor (REMSN1, REMSN2 or REMSN3) is not within the range of -53 to +158°F (-47 to +70°C.) • UNIT CONTROL: Engine and Electric Operation: Alarm only.
Page 215 00136 C2 CHECK SUPPLY AIR SENSOR • ACTIVATION: Compartment 2 Supply Air Temperature Sensor (SAT) is not within the range of -53 to +158°F (-47 to +70° C). (NOTE: Compartment 2 Supply Air Temperature Sensor (SAT) is optional and may not be present.
Page 216 00138 C3 CHECK RETURN AIR SENSOR • ACTIVATION: Compartment 3 Return Temperature Sensor (RAT) is not within the range of -53 to +158°F (- 47 to +70° C). • UNIT CONTROL: Engine and Electric Operation: If setpoint is in the perishable range, compartment 3 will shutdown.
Page 217 00139 C2 CHECK DEFROST TERM 1 SENSOR • ACTIVATION: Defrost Termination Temperature Sensor for Compartment 2, (2DTT) is not within the range of -53° to +158°F (-47° to +70° C.) • UNIT CONTROL: Engine and Electric Operation: If Alarm 00137 C2 CHECK RETURN AIR SENSOR C2 CHECK RETURN AIR SENSOR is not active: alarm and initiate defrost if 1RAT is below 455F (7.25C).
Page 218 00140 C3 CHECK DEFROST TERM 1 SENSOR • ACTIVATION: Defrost Termination Temperature Sensor for Compartment 3, (3DTT) is not within the range of -53° to +158°F (-47° to +70° C.) • UNIT CONTROL: Engine and Electric Operation: If Alarm 138 C3 CHECK RETURN AIR SENSOR is not active: alarm and initiate defrost if 1RAT is below 455F (7.25C).
Page 219 P00146 C2 CHECK HEATER 1 CIRCUIT This device is checked twice in Pretrip - once in Test 2 and again in Test 7. • ACTIVATION TEST 2: (unit not running): Normal draw for the 2HTCON1 coil is 0.05 to 1.0 Amps (12 VDC).
Page 220 P00146 C2 CHECK HEATER 1 CIRCUIT - CONTINUED 6. Check Heater Element Connections a. Inspect high voltage heater connections at evaporator. Check for corrosion, water damage or burning / discoloration. Remove, repair, or replace if required. b. Disconnect heater element plug. Heater resistance per Section 2.11.
Page 221 P00147 C2 CHECK HEATER 2 CIRCUIT - CONTINUED 460 VAC CIRCUIT: 4. Check Amp Draw of 2HTCON2 Heater Circuit a. With the unit running and calling for Heat, use a clamp on ammeter to check the current draw of all 3 legs. Must be within range shown in Section 2.11 for all three legs.
Page 222 P00152 CHECK FUEL/SPEED ACTUATOR CIRCUIT • ACTIVATION: The circuit current draw is outside the normal range. • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail in test 2 and display “PRETRIP FAIL AND COMPLETED”. • RESET CONDITION: Auto reset if Pretrip is started again or alarm may be manually reset using the dis- play mounted keys or by turning the unit off then back on again.
Page 223 P00155 CHECK COOLANT TEMP SENSOR • ACTIVATION: Engine Coolant Temperature Sensor (ENCT) is not within the range of -58 to +266°F (-50 to +130°C). • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 224 P00159 CHECK DEFROST TERM 1 SENSOR • ACTIVATION: Defrost Termination Temperature Sensor (1DTT) is not within the range of -53 to +158°F (- 47 to +70°0 C.) • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 225 P00163 C3 CHECK HEATER 1 CIRCUIT This device is checked twice in Pretrip - once in Test 2 and again in Test 7. • ACTIVATION TEST 2: (unit not running): Normal draw for the 3HTCON1 coil is 0.05 to 1.0 Amps (12 VDC).
Page 226 P00163 C3 CHECK HEATER 1 CIRCUIT - CONTINUED 460 VAC CIRCUIT: 6. Check Amp Draw of 3HTCON1 Heater Circuit a. With the unit running and calling for Heat, use a clamp on ammeter to check the current draw of all 3 legs. Must be within range shown in Section 2.11 for all three legs.
Page 227 P00167 C3 CHECK HEATER 2 CIRCUIT This device is checked twice in Pretrip - once in Test 2 and again in Test 7. • ACTIVATION TEST 2: (unit not running): Normal draw for the 3HTCON2 contactor coil is 0.05 to 2.0 Amps (12 VDC).
Page 228 P00167 C3 CHECK HEATER 2 CIRCUIT - CONTINUED 460 VAC CIRCUIT: 6. Check Amp Draw of 3HTCON2 Heater Circuit a. With the unit running and calling for pull up in, use a clamp on ammeter to check the current draw of all 3 legs.
Page 229 P00173 CHECK ECONOMIZER • ACTIVATION: Test #12, Check Economizer Expansion Valve fails. • UNIT CONTROL: Engine and Electric Operation: Alarm Only. • RESET CONDITION: Auto reset if Pretrip is started again or alarm may be manually reset using the dis- play mounted keys or by turning the unit off then back on again.
Page 230 P00177 CHECK EXV (EVXV) SUPERHEAT • ACTIVATION: With the unit running in Test 11, after the control system closes the EVXV to 0%, evapora- tor pressure fails to drop by 20 psig (1.36 bar) or fails to go below 0 psig / bar OR the EVXV appears not to be opening to the full capacity position.
Page 231 P00180 CHECK SUCTION MOD VALVE • ACTIVATION: With the unit running in Pretrip Test #10, after the microprocessor attempts to close CSMV, the suction pressure fails to drop below 0 psig (0 bar). • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL IN TEST 10”. •...
Page 232 P00184 C2 CHECK EVAPORATOR FAN MOTOR This device is checked twice in Pretrip - once in Test 2 and again in Test 8. • ACTIVATION TEST 2: (unit not running): Normal draw for the 2EVCON contactor coil is 0.05 to 2.0 Amps (12 VDC).
Page 233 P00184 C2 CHECK EVAPORATOR FAN MOTOR - CONTINUED 460 VAC CIRCUIT: 5. Check Amp Draw of 2EVCON Evaporator Fan Motor Circuit a. With the unit running in either HEAT or COOL use a clamp on ammeter to check the current draw of all 3 legs.
Page 234 P00185 C3 CHECK EVAPORATOR FAN MOTOR This device is checked twice in Pretrip - once in Test 2 and again in Test 8. • ACTIVATION TEST 2: (unit not running): Normal draw for the 2EVCON contactor coil is 0.05 to 2.0 Amps (12 VDC).
Page 235 P00185 C3 CHECK EVAPORATOR FAN MOTOR - CONTINUED 460 VAC CIRCUIT: 5. Check Amp Draw of 3EVCON Evaporator Fan Motor Circuit a. With the unit running in either HEAT or COOL use a clamp on ammeter to check the current draw of all 3 legs.
Page 236 P00187 CHECK HEATER 1 CIRCUIT This device is checked twice in Pretrip - once in Test 2 and again in Test 7. • ACTIVATION TEST 2: (unit not running): Normal draw for the 1HTCON1 coil is 0.05 to 1.0 Amps (12 VDC).
Page 237 P00187 CHECK HEATER 1 CIRCUIT - CONTINUED 460 VAC CIRCUIT 6. Check Amp Draw of 1HTCON1 Heater Circuit a. With the unit running and calling for Heat, use a clamp on ammeter to check the current draw of all 3 legs. Must be within range shown in Section 2.11 for all three legs.
Page 238 P00188 CHECK HEATER 2 CIRCUIT This device is checked twice in Pretrip - once in Test 2 and again in Test 8. • ACTIVATION TEST 2: (unit not running): Normal draw for the 1HTCON2 contactor coil is 0.05 to 2.0 Amps (12 VDC).
Page 239 P00188 CHECK HEATER 2 CIRCUIT - CONTINUED 460 VAC CIRCUIT 6. Check Amp Draw of 1HTCON2 Heater Circuit a. With the unit running and calling for Heat, use a clamp on ammeter to check the current draw of all 3 legs. Must be within range shown in Section 2.11 for all three legs.
Page 240 P00189 CHECK EVAPORATOR FAN MOTOR This device is checked twice in Pretrip - once in Test 2 and again in Test 9. • ACTIVATION TEST 2: (unit not running): Normal draw for the 1EVCON contactor coil is 0.05 to 2.0 Amps (12 VDC).
Page 241 P00189 CHECK EVAPORATOR FAN MOTOR - CONTINUED 460 VAC CIRCUIT 5. Check Amp Draw of 1EVCON Evaporator Fan Motor Circuit a. With the unit running in either HEAT or COOL, use a clamp on ammeter to check the current draw of all 3 legs.
Page 242 P00190 CHECK CONDENSER FAN MOTOR • ACTIVATION: Normal draw for the condenser fan motors is 0.8 to 3.5 Amps (460 VAC). The circuit tests outside this range. • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 243 P00199 C2 CHECK RETURN AIR SENSOR • ACTIVATION: Compartment 2 Return Air Temperature Sensor (RAT) is not within the range of -53 to +158°F (-47 to +70°C). • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 244 P00207 CHECK COMPRESSOR CONTACT CIRC • ACTIVATION: Normal draw for the CCON contactor coil is 0.0 to 1.0 Amps (12 VDC). The circuit tests outside this range. • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 245 P00208 CHECK GENERATOR CONT CIRC • ACTIVATION: Normal draw for the GENCON coil is 0.0 to 1.0 Amps (12 VDC). The circuit tests outside this range. • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 246 P00209 CHECK STANDBY CONT CIRCUIT • ACTIVATION: Normal amps for the PSCON or PSCON2 contactor coils 0.0 to 1.0 Amps (12 VDC). The circuit(s) test outside this range. (During this test either PSCON or PSCON2 will be tested depending on the phase reversal module.) •...
Page 247 00211 C2 CHECK DEFRFOST SENSOR • ACTIVATION: Compartment 2 Defrost Termination Temperature Sensor is not within the range of -53 to +158°F (-47 to +70°0 C.) • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 248 00224 STANDBY MAINTENANCE DUE • ACTIVATION: The Standby Hour Meter time has expired. • UNIT CONTROL: Engine and Electric Operation: Alarm Only. Alarm Light will NOT be turned on. • RESET CONDITION: Alarm may be manually reset via keypad. CORRECTIVE ACTIONS: 1.
Page 249 00226 SERVICE SOON-PM #1 DUE • ACTIVATION: The Maintenance Hour Meter #1 time has expired. • UNIT CONTROL: Engine and Electric Operation: Alarm Only. Alarm Light will NOT be turned on. • RESET CONDITION: Alarm may be manually reset via keypad. CORRECTIVE ACTIONS: 1.
Page 250 00228 SERVICE SOON-PM #3 DUE • ACTIVATION: The Maintenance Hour Meter #3 time has expired. • UNIT CONTROL: Engine and Electric Operation: Alarm Only. Alarm Light will NOT be turned on. • RESET CONDITION: Alarm may be manually reset via keypad. CORRECTIVE ACTIONS: 1.
Page 251 00230 SERVICE SOON-PM #5 DUE • ACTIVATION: The Maintenance Hour Meter #4 time has expired. • UNIT CONTROL: Engine and Electric Operation: Alarm Only. Alarm Light will NOT be turned on. • RESET CONDITION: Alarm may be manually reset via keypad. CORRECTIVE ACTIONS: 1.
Page 252 Check Model # in microprocessor. Check Model Number on Nameplate. b. Enter correct Model Number. Select the correct model number in the “MODEL NUMBER” Configuration. If correct model number is not found, install (or have Carrier Transicold dealer install) latest software revision.
Page 253 00237 FUNCTION PARAMETERS ERROR • ACTIVATION: There is an error in one or more of the Functional Parameters that are stored in the main microprocessor memory. • UNIT CONTROL: Engine and Electric Operation: Incorrect Functional Parameter(s) will be automatically set for default value. •...
Page 254 00238 CONFIGURATIONS ERROR • ACTIVATION: There is an error in the Configuration settings that are stored in the main microprocessor memory. • UNIT CONTROL: Engine and Electric Operation: Incorrect Configuration(s) will be automatically set for default value. • RESET CONDITION: Auto reset when valid Configuration(s) are entered, or alarm may be manually reset by turning the unit off, then back on again.
Page 255 CORRECTIVE ACTIONS: 1. Check Microprocessor Software Revision - Check microprocessor software. The unit should have the software upgraded to the latest version, provided for Carrier Transicold dealers on the TransCentral site. 2. Reset Microprocessor a. Place the START/RUN-OFF switch in the OFF position. Disconnect positive battery cable, remove F7 fuse or unplug 1MM connector, wait 20 seconds and reinstall.
Page 256 00248 CONFIG MODE / HP2 ERROR • ACTIVATION: EEPROM Configuration is out of range. • UNIT CONTROL: Engine and Electric Operation: Shutdown and alarm. • RESET CONDITION: Auto reset only when valid info is entered. NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the alarm(s).
Page 257 CORRECTIVE ACTIONS: 1. Check Software Revision - Check microprocessor software. The unit should have the software upgraded to the latest version, provided for Carrier Transicold dealers on the TransCentral site. 2. Reset Microprocessor a. Place the START/RUN-OFF switch in the OFF position. Disconnect positive battery cable, remove F7 fuse or unplug 1MM connector, wait 20 seconds and reinstall.
Page 258 02002 LOW DISCHARGE SUPERHEAT • ACTIVATION: Compressor discharge superheat is less than 68°F (20°C) after 3 minutes of engaging the Econ SH offset logic, the compressor is on, and Evaporator Flood back control hasn’t been active in the last 3 minutes and suction superheat is greater than 40°F (4.4°C) NOTE This alarm can be caused by a stuck open ECXV or LIV, causing too much liquid to be sent into the compressor at the economizer connection.
Page 259 Once Emergency Bypass Mode has been activated, the unit will operate normally for 24 hours, a countdown timer will be shown on the display. This 24 hour window of operation will keep the load safe, and provide enough time to contact the nearest Carrier Transicold Service Center for repair of the unit.
Page 260 04000 CHECK REMOTE SWITCH 3 (REMS3) • ACTIVATION: REMS3 is set to trigger an alarm if the switch is activated (opened or closed, depending on switch type) for more than five seconds. • UNIT CONTROL: Engine and Electric Operation: May be configured as alarm only, alarm and force low engine speed or alarm and shutdown.
Page 261 04001 CHECK REMOTE SWITCH 4 (REMS4) • ACTIVATION: REMS4 is set to trigger an alarm if the switch is activated (opened or closed, depending on switch type) for more than five seconds. • UNIT CONTROL: Engine and Electric Operation: May be configured as alarm only, alarm and force low engine speed or alarm and shutdown.
Page 262 04002 HIGH ECONOMIZER SUPERHEAT • ACTIVATION: With unit running in economized mode for 15 minutes, ECXV open greater than 99% for 5 minutes, and a box temperature less than 14°F (-10°C); economizer superheat is above 74°F (23°C) for 5 minutes. NOTE This alarm can be caused by a stuck ECXV, not letting enough liquid into the economizer circuit.
Page 263 04004 NO SETPOINT CHANGE 04005 NO SETPOINT CHANGE C2 04006 NO SETPOINT CHANGE C3 • ACTIVATION: Operator failed to press '=' key after entering a setpoint change • UNIT CONTROL: Alarm only. • RESET CONDITION: Setpoint change entered correctly. NOTE: Follow the steps below until a problem is found. Once a repair or correction has been made, clear the alarm(s).
Page 264 05004 BAD F13 FUSE • ACTIVATION: Fuse Alarm; Feedback from Output Board indicates fuse is missing or blown. Signal must be present for at least 3 seconds. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Replace or fix fuse issue. NOTE: Follow the steps below until a problem is found.
Page 265 05006 POWER ENABLE RELAY FUSE ALARM • ACTIVATION: Fuses 9, 10 and 13 (multi-temp only) must be in a failed state in order to trigger the Power Enable Relay (PER) Fuse Alarm. • UNIT CONTROL: Engine and Electric Operation: Shutdown and Alarm. •...
Page 266 05008 BAD F10 FUSE • ACTIVATION: Output Board Fuse Alarm; Feedback from Output Board indicates fuse is missing or blown. Signal must be present for at least 3 seconds. • UNIT CONTROL: Engine and Electric Operation: Shutdown and Alarm. • RESET CONDITION: Replace or fix fuse issue.
Page 267 05010 CHECK STANDBY CONTACTOR TWO (PSCON2) • ACTIVATION: Standby contactor one (PSCON2) circuit is shorted or open. • UNIT CONTROL: Engine Operation: Alarm condition only. Electric Operation: Required Shutdown • RESET CONDITION: 15 Minutes have elapsed since activation or alarm may be manually reset via key- pad or by turning the unit off, then back on again.
Page 268 05012 CHECK ENCU POWER CIRCUIT NOTE When operation of the engine is required the main microprocessor will provide a signal from terminal 3MM-9. This signal has been referred to as the “run relay”, based on pre-APX control systems that had an actual relay in place. Whenever the term “run relay” is used in APX control system discussion, it is referring to the engine run output from 3MM-9 to the ENCU at terminal ENCU-44.
Page 269 05014 CHECK STARTER SOLENOID CIRCUIT • ACTIVATION: A problem has been detected in the starter solenoid coil (SS) circuit. If this alarm is acti- vated while the control system is calling for SS to be energized, the circuit is detected shorted. If this alarm occurs at any other time, the circuit is detected open.
Page 270 05017 CHECK ENG PREHEAT ENABLE CIRCUIT • ACTIVATION: A problem has been detected in the engine preheat enable circuit (EPHT). If this alarm is activated when the circuit is energized, the circuit is detected shorted. If this alarm is activated at any other time, the circuit is detected open.
Page 271 05019 CHECK CDCON2 COIL • ACTIVATION: Condenser fan motor contactor (CDCON2) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 272 05020 CHECK HTR CNTR ONE • ACTIVATION: Heater Contactor 1 (1HTCON1) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 273 05021 CHECK HTR CNTR TWO • ACTIVATION: Heater Contactor 2 (1HTCON2) circuit is shorted or open. • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Auto Reset or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 274 05022 C2 CHECK HIGH TEMP THERMOSTAT • ACTIVATION: With the Main Power switch toggled out of the OFF position, the EVHTS circuit is open. • UNIT CONTROL: Engine and Electric Operation: Alarm AND no heat allowed. • RESET CONDITION: Auto Reset when the EVHTS circuit is okay for 15 minutes, or alarm may be manu- ally reset via keypad or by turning the unit off, then back on again.
Page 275 05023 C3 CHECK HIGH TEMP THERMOSTAT • ACTIVATION: With the Main Power switch toggled out of the OFF position, the EVHTS circuit is open. • UNIT CONTROL: Engine and Electric Operation: Alarm AND no heat allowed. • RESET CONDITION: Auto Reset when the EVHTS circuit is okay for 15 minutes, or alarm may be manu- ally reset via keypad or by turning the unit off, then back on again.
Page 276 06000 CONDENSER MOTOR2 OVERHEATED • ACTIVATION: The condenser fan motor Internal Protectors (IP-CDM2) circuit is open. • UNIT CONTROL: Engine Operation: Engine and unit shutdown and alarm. Electric Operation: Refrigeration system shutdown and alarm with PSCON still ener- gized. • RESET CONDITION: Auto Reset when motor overload input is within limits, or change to engine Opera- tion, or alarm may be manually reset via keypad or by turning the unit off, then back on again.
Page 277 06001 CHECK LIGHT BAR • ACTIVATION: A problem has been detected in the light circuit (LB). If this alarm is activated while the cir- cuit is energized, the circuit is detected shorted. If this alarm is activated at any other time, the circuit is detected open.
Page 278 07001 ECONOMIZER PRESS SENSOR • ACTIVATION: Economizer Pressure (ECOP) sensor is out of range. • UNIT CONTROL: Engine and Electric: Alarm only. Economizer forced to STANDARD mode when alarm is active. • RESET CONDITION: Economizer Pressure sensor is in range or alarm may be manually reset using the display mounted keys or by turning the unit off, then back on again.
Page 279: Check Sensor
07003 C2 CHECK EVAC TEMP SENSOR • ACTIVATION: Evaporator Outlet Temperature Sensor (EVOT) in compartment 2 is not within the range of - 53 to +158°F (-47 to +70°C) • UNIT CONTROL: Engine and Electric: Alarm only and superheat for EVXV will be calculated using SAT or DTT if alarm 00123 (Check Supply Air Sensor) is active.
Page 280 07004 C3 CHECK EVAC TEMP SENSOR • ACTIVATION: Evaporator Outlet Temperature Sensor (EVOT) in compartment 3 is not within the range of - 53 to +158°F (-47 to +70°C) • UNIT CONTROL: Engine and Electric: Alarm only and superheat for EVXV will be calculated using SAT or DTT if alarm 00123 (Check Supply Air Sensor) is active.
Page 281 07006 SUCTION PRESSURE SENSOR • ACTIVATION: Suction pressure sensor is out of range. If Economizer pressure < or = (Suction pressure - 10) for 10 seconds and suction pressure is > than 40 psig and < than 60 psig with the compressor running. •...
Page 282 P11000 CHECK CONDENSER FAN MOTOR 2 • ACTIVATION: Normal draw for the condenser fan motors is 0.8 to 3.5 Amps (460 VAC). The circuit tests outside this range. • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 283 P12001 C2 CHECK EVAP OUTLET TEMP • ACTIVATION: Evaporator Outlet Temperature Sensor (EVOT) is not within the range of -53 to +158°F (- 47 to +70°C.) • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 284 P14002 C3 CHECK EVAP1 SUPERHEAT P14003 C3 CHECK EVAP2 SUPERHEAT • ACTIVATION: Compartment 3 evaporator (1 or 2) superheat and/or Compartment 3 evaporator pressure out of range activates this alarm. • UNIT CONTROL: Engine and Electric Operation: Pretrip will fail and display “PRETRIP FAIL AND COM- PLETED”.
Page 285 20101 NO COMM FROM MICRO TO REMOTE DISPLAY • ACTIVATION: If alarm 21100 “NO COMM FROM ANY BOARD TO MAIN MICRO“ is not active, and Num- ber of Remote Panels installed configuration is 1, and no sync responses have been received from the Remote Panel Module for 10 seconds.
Page 286 21100 NO COMM FROM ANY BOARD TO MAIN MICRO NOTE This alarm will be available in the inactive alarm list and download only. It is an indication that an intermittent problem has occurred and a careful diagnosis is required. • ACTIVATION: Main microprocessor cannot communicate with any modules over the CAN bus.
Page 287 22101 SENSOR INPUT VOLTAGE LOW INP1 NOTE This alarm is an indication that there is a short in the transducer or DC current transformer wiring and the voltage supply in the main microprocessor is overloaded. • ACTIVATION: Voltage from main microprocessor to the components is less than 4.5 VDC •...
Page 288 22102 SENSOR INPUT VOLTAGE HIGH INP1 NOTE This alarm is an indication that there is a short in the DC current transformer wiring from another (nominal 12 VDC) circuit into the transducer or CT sensor circuit. • ACTIVATION: Voltage from main microprocessor to the sensors is greater than 5.5 VDC •...
Page 289 23100 NO COMM FROM MICRO TO OUTPBD1 • ACTIVATION: Main microprocessor cannot communicate internally. • UNIT CONTROL: Engine and Electric Operation: Shutdown all modules except the display and alarm. (The alarm will only display if the display module is communicating.) Main microprocessor status LED will illuminate steady green (not pulsing).
Page 290 24100 NO COMM FROM MICRO TO CCB1 • ACTIVATION: Alarm 21100 is not active, and Unit is not starting in diesel. No communication from the CCB1 Module for 10 seconds. • UNIT CONTROL: Engine and Electric Operation: Required Shutdown. If alarm remains active for 2 min- utes issue a shutdown command to all modules except the display.
Page 291 24102 SENSOR INPUT VOLTAGE HIGH CCB1 • ACTIVATION: The Voltage Supply for the Sensors on the CCB1 is above High voltage limit 5.5V • UNIT CONTROL: Engine and Electric Operation: Alarm Only. • RESET CONDITION: The Voltage Supply for Sensors on CCB1 is below the High voltage limit 5.5V NOTE: Follow the steps below until a problem is found.
Page 292 24201 SENSOR INPUT VOLTAGE LOW CCB2 • ACTIVATION: The Voltage Supply for the Sensors on the CCB2 is below the low voltage limit 4.5V • UNIT CONTROL: Engine and Electric Operation: Alarm Only. • RESET CONDITION: The Voltage Supply for Sensors on the CCB2 is above low voltage limit 4.5V NOTE: Follow the steps below until a problem is found.
Page 293 24300 NO COMM FROM MICRO TO CCB3 • ACTIVATION: Alarm 21100 is not active, and Unit is not starting in diesel. No communication from the CCB3 Module for 10 seconds. • UNIT CONTROL: Engine and Electric Operation: Required Shutdown. If alarm remains active for 2 min- utes issue a shutdown command to all modules except the display.
Page 294 24302 SENSOR INPUT VOLTAGE HIGH CCB3 • ACTIVATION: The Voltage Supply for the Sensors on the CCB3 is above the high voltage limit 5.5V. • UNIT CONTROL: Engine and Electric Operation: Alarm Only. • RESET CONDITION: The Voltage Supply for Sensors on CCB3 is below the High voltage limit 5.5V. NOTE: Follow the steps below until a problem is found.
Page 295 24401 SENSOR INPUT VOLTAGE LOW CCB4 • ACTIVATION: The Voltage Supply for the Sensors on the CCB4 is below the low voltage limit 4.5V. • UNIT CONTROL: Engine and Electric Operation: Alarm Only. • RESET CONDITION: The Voltage Supply for Sensors on CCB4 is above the low voltage limit 4.5V NOTE: Follow the steps below until a problem is found.
Page 296 25100 NO COMM FROM MICRO TO STP1 • ACTIVATION: Main microprocessor cannot communicate with stepper valve module over the CAN bus. • UNIT CONTROL: Engine and Electric Operation: Shut down and alarm. The stepper valve module status LED may be on steady green (not pulsing) or red. •...
Page 297 25102 CHECK INPUT VOLTAGE STP1 • ACTIVATION: The stepper input voltage is reported out of valid range (9V to 17V) by stepper board 1 for 3 seconds as times at stepper board. • UNIT CONTROL: Engine and Electric Operation: Alarm only. Steppers on board with problem disabled (Powered OFF) until good power reported from Stepper Board at which point they are re-enabled.
Page 298 25201 OVER CURRENT STP2 • ACTIVATION: The stepper current is reported to be too high by stepper board 2 (Indicated by Stepper Output Voltage < 5V) for 3 Seconds as timed at stepper board. • UNIT CONTROL: Engine and Electric Operation: Alarm only. Steppers on board with problem disabled (Powered OFF) until good power reported from Stepper Board at which point they are re-enabled.
Page 299 25300 NO COMM FROM MICRO TO STP3 • ACTIVATION: Alarm 21100 is not active and No sync responses have been received from the Stepper 3 Module for 10 seconds. • UNIT CONTROL: Engine and Electric Operation: Required Shutdown. If alarm remains active for 2 min- utes issue a shutdown command to all modules except the display.
Page 300 25302 CHECK INPUT VOLTAGE STP3 • ACTIVATION: The stepper input voltage is reported out of valid range (9V to 17V) by stepper board 3 for 3 seconds. • UNIT CONTROL: Engine and Electric Operation: Alarm only. Steppers on board with problem disabled (Powered OFF) until good power reported from Stepper Board at which point they are re-enabled.
Page 301 25401 OVER CURRENT STP4 • ACTIVATION: The stepper current is reported to be too high by stepper board 4 (Indicated by Stepper Output Voltage < 5V) for 3 Seconds. • UNIT CONTROL: Engine and Electric Operation: Alarm only. Steppers on board with problem disabled (Powered OFF) until good power reported from Stepper Board at which point they are re-enabled.
Page 302 26100 NO COMM FROM MICRO TO ENCU • ACTIVATION: Main microprocessor cannot communicate with the engine control unit over the CAN bus and AL00013 (High Discharge Pressure) is not active. • UNIT CONTROL: Engine Operation: Shutdown and alarm. Electric Operation: This alarm will not activate in Electric Operation. •...
Page 303 26102 WATER TEMP LOW ENCU • ACTIVATION: Voltage of water temperature sensor is 0.1 V or less • UNIT CONTROL: Engine Operation: Alarm only. Electric Operation: This alarm will not activate in electric operation. • RESET CONDITION: If trigger on message not received for 5 seconds, alarm reset or alarm may be manually reset by turning the unit off, then back on again.
Page 304 26105 ENGINE OVERRUN ENCU • ACTIVATION: Engine speed > 2070 min-1 (rpm) • UNIT CONTROL: Engine Operation: Required Shutdown. Electric Operation: This alarm will not activate in electric operation. • RESET CONDITION: If trigger on message not received for 5 seconds, alarm reset or alarm may be manually reset by turning the unit off, then back on again.
Page 305 26108 RACK POSITION SENSOR ABNORMAL • ACTIVATION: Sensor voltage > 4.9 V or < 0.3V • UNIT CONTROL: Engine Operation: Alarm only. Electric Operation: This alarm will not activate in electric operation. • RESET CONDITION: If trigger on message not received for 5 seconds, alarm reset or alarm may be manually reset by turning the unit off, then back on again.
Page 306 26110 ENGINE SPEED SENSOR ABNORMAL • ACTIVATION: Engine speed = 0 min-1 (rpm) • UNIT CONTROL: Engine Operation: Required Shutdown. Electric Operation: This alarm will not activate in electric operation. • RESET CONDITION: If trigger on message not received for 5 seconds, alarm reset or alarm may be manually reset by turning the unit off, then back on again.
Page 307 28002 NO COMM FROM DOOR SWITCH • ACTIVATION: The door switch configuration is configured as 3rd Party and no communications have been received for 15 minutes • UNIT CONTROL: Engine and Electric Operation: Alarm only. • RESET CONDITION: Communications have been received from the door switch. NOTE: Follow the steps below until a problem is found.
Page 308 62-11782 7–158...
Page 309 POE oil. The use of inert gas brazing procedures is mandatory for all Never use air or gases containing oxygen Carrier Transicold refrigeration units; for leak testing or operating refrigerant otherwise compressor failure will occur. compressors. Pressurized mixtures of air...
Page 310: Pretrip Inspection
Cooling System 1. Check coolant change interval (refer to Section c. of this table). If Section 8.6.14 replacement is not required, check antifreeze concentration using a refractometer (Carrier Transicold P/N 07-00435-00) 2. Clean condenser/radiator surfaces Section 8.6.14 3. Check water pump Check 4.
Page 311 Table 8–1 Maintenance Schedule System Operation Reference Section Charging 1. Check battery charger output voltage Section 8.10.13 Circuit 2. Check battery charger amperage Section 8.10.13 *Based upon EPA 40 CFR Part 89 Unit 1. Check unit and remote evaporator mounting bolts Check 2.
Page 312 External Surface Service Procedures for servicing or maintaining the grille, surround, doors, door latches and display module are provided below. 8.5.1 Remove Grille Insert Figure 8.1 Grille Insert Removal and Door Latch Maintenance NOTE If difficulty is experienced when attempting GRILLE INSERT to remove the grille mounting bolts, the grille GRILLE INSERT MOUNTING BOLTS...
Page 313 8.5.3 Door Latch Maintenance and Cable Replacement 8.5.3.1 Door Latch Maintenance Proper maintenance is important for smooth operation of the latch assemblies and the latch pins that are mounted on the unit’s frame (See Figure 8.1). In order to keep the movable parts clean and lubricated, CTD recommends the use of a de-greasing cleaner and LPS 2 lubricant.
Page 314 Engine and Engine Related Systems Service Procedures for servicing the engine, fuel system, engine cooling system and air cleaner are provided in the following sub-paragraphs. Figure 8.4 Engine Components 1, 2 1. Engine Preheater (EPH) 5. Injection Pump 2. Engine Coolant Temperature Sensor 6.
Page 315 Figure 8.5 Fuel System Diagram SPIN–ON FILTER SYSTEM SUCTION SIDE FILTER SYSTEM 1. Fuel Tank 9. Injection Pump 2. Supply Line 10. Injector Nozzles 3. Electric Pump 11. Bleed Screw 4. Mechanical Pump 12. Return Line 5. Water Drain Valve 13.
Page 316 Running the engine for an extended period of time with the manual plunger up can cause a priming pump failure 6. Depress and turn the top of the manual plunger clockwise to lock in place. 7. When engine is running smoothly, turn bleed valve clockwise until fully closed. If bleeding a suction side fil- ter system, loosen the vent on the cover until fuel level lowers to the collar clamp then hand tighten vent.
Page 317 8.6.4 Electric Fuel Pump Screen 1. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and disabling the starter. Disconnect the high voltage source and lockout/tagout the receptacle. 2. Remove bowl, (Figure 8.7). 3.
Page 318 Disconnect the high voltage source and lockout/tagout the receptacle. NOTE If required, use a lock collar wrench (Carrier Transicold part Number 07-00423-00) to loosen the collar or vent cap. Do not use the wrench to install the vent cap or collar, hand tighten only.
Page 319 Figure 8.8 Suction Side Fuel Filter Replacement Collar Vent Cap Vent Cap Seal Cover Cover Seal Spring Filter Element Check Valve Heater (If Equipped) Drain Valve 8–11 62-11782...
Page 320 8.6.7 Fuel Level Sensor (FLS) An optional fuel level sensor (item1, Figure 8.9) supplies an input signal to the control system as to the percent of fuel remaining in the fuel tank. The control system will activate alarm A00001 - “LOW FUEL LEVEL WARNING” when the level reaches 15%, and (if configured to do so) shuts the engine down when the level reaches 10%.
Page 321 8.6.8 Fuel Heater The optional fuel heater (Figure 8.5) applies heat to fuel in the fuel filter. Heating the fuel dissolves/prevents paraffin wax crystals (and ice) that form when diesel fuel is chilled thus enabling the water separator to work more efficiently and to prevent the filter from plugging with wax and/or ice crystals.
Page 322 8.6.9.3 Change Engine Oil Filter 1. If not continuing from preceding step b., warm up the engine and then stop it by placing the START/ RUN- OFF switch in the OFF position. Ensure the unit will not start automatically by disabling the starter. Disconnect the high voltage source and lockout/tagout the receptacle.
Page 323 Figure 8.12 Engine Preheater 8.6.11.2 Replacing the Engine Preheater 1. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and disabling the starter. Disconnect the high voltage source and lockout/tagout the receptacle. 2. Remove the inlet hose. 3.
Page 324 8.6.12 Engine Control System Then engine is controlled by six components (see Figure 8.4): the engine control unit (ENCU), the Fuel/Speed Actuator (FSA) the engine speed sensor (ENSSN), the rack position sensor (RPS), the engine oil pressure switch (ENOPS) and the Engine Coolant Temperature Sensor (ENCT). •...
Page 325: Cooling System
Figure 8.14 Plug & Gate Valve Assembly Calibration Completed: After the calibration process is completed, the system will indicate that the calibration was successful, and the engine will shut down. 8.6.14 Cooling System 8.6.14.1 Cleaning and Flushing: Air flows through the condenser and then the radiator. The cooling surfaces must be clean and the interior of the radiator must be clean for adequate cooling.
Page 326 7. Reinstall the negative battery cable, start unit and check for leaks. 8.6.14.2 Radiator Replacement: Figure 8.15 Condenser and Radiator Assemblies 1. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and removing the negative battery cable.
Page 327 The water pump v-belt is driven by a sheave on the engine crankshaft. Frayed, cracked or worn belts must be replaced. This belt requires no tension adjustment. 1. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and removing the negative battery cable.
Page 328 Refrigerant System Service Service of the refrigerant system includes: connection of refrigerant system equipment, servicing the refrigerant charge, leak checking and evacuation. Procedures for refrigerant system service are provided in the following sub paragraphs. Figure 8.18 Refrigerant System Service Vacuum Pump Vacuum Indicator Refrigerant Cylinder Refrigerant Recovery Unit...
Page 329 Servicing the Refrigerant Charge 8.7.2 Servicing of the refrigerant charge includes: checking charge level, checking for noncondensibles, removing the charge, pumping down the low side, pumping down the compressor, adjusting the charge level and adding a complete charge. Procedures for charge service are provided in the following sub paragraphs. 8.7.2.1 Checking Charge Level Check refrigerant charge before adding refrigerant to the system.
Page 330 8.7.2.4 Removing Charge (R-452A) 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,” including, but not limited to brazing or welding, on these units to prevent flare- up of residual refrigerant.
Page 331 8.7.2.4.1 Unit Connections Figure 8.20 Unit Connections • Connect the manifold gauge set to the unit (refer to Figure 8.20) • Hose A to low-pressure compressor service valve • Hose B to vacuum pump • Hose C to high-pressure compressor service valve •...
Page 332 8.7.2.4.2 Recovery System Installation Figure 8.21 Recovery System 1. Connect recovery machine to hose (B). 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 333 -0,67 bar (-20 inHg). This specific effect must be taken into consideration espe- For more information about nitrogen instruction, refer cially in cases of working in heights where to Carrier Transicold document #98-60068-00 (Brazing there may be a fall risk. Instructions). The R-452A is recovered 8–25...
Page 334 8.7.2.6 Pumping Down the Low Side Components on the low side of the refrigeration system (the filter drier, EVXV, ECXV, evaporator coil, CSMV, heat exchanger, suction line etc.) may be serviced or replaced without having to completely remove the refrigerant charge from the system by pumping down the low side, and temporarily storing the refrigerant in the condenser and receiver.
Page 335 8.7.2.8 Adjusting the Charge Level Adjustment of the charge level may be required when there has been a leak or the system was not correctly charged during a previous service. 1. Check charge level by performing the procedures of the preceding step a. 2.
Page 336 8.7.3 Leak Checking WARNING Never use air or gases containing oxygen for leak testing or operating refrigerant compressors. Pressurized mixtures of air or gases containing oxygen can lead to explosion. The condition that the system may be in when leak checking is required include; when the system is charged, when the system is without charge, when the low side has been pumped down and when only the compressor is to be leak checked.
Page 337 WARNING Do not use a nitrogen cylinder without a pressure regulator. Cylinder pressure is approximately 2350 psig (159.9 bar). Do not use oxygen in or near a refrigerant system as an explosion may occur. (See Figure 8.32). 5. Connect a cylinder of dry nitrogen. Use the dry nitrogen to increase the pressure as necessary 20 to 150 psig (1.4 to 10.2 bar) to detect the leak.
Page 338 6. The recommended procedure for finding leaks from a system is with an electronic leak detector. Checking joints with soapsuds is satisfactory only for locating large leaks, or pinpointing small leaks once a general area has been located. 7. Once leak checking is complete, remove refrigerant/ nitrogen vapor from the low side of the system. 8.
Page 339: Evacuation And Dehydration
Essential tools to properly evacuate any system include a good vacuum pump (5 cfm/8m H volume dis- placement, Carrier Transicold part number 07-00176-11) and a good vacuum indicator such as a digital vac- uum gauge, Carrier Transicold part number 07-00414-00.
Page 340 8.7.4.2 Evacuation of the Low Side 1. Evacuate only after a low side leak check. (Refer to Section 8.7.3) 2. If possible keep the temperature of the major components (condenser, evaporator, compressor and receiver) above 60°F (15.6°C) to speed evaporation of moisture. If the temperature is lower than 60°F (15.6°C), ice might form before moisture removal is complete.
Page 341 Compressor Service WARNING Before removal of the compressor, relieve the internal pressure by very carefully loosening the couplings to break the seal. The scroll compressor achieves low suction pressure very quickly. Do not use the compressor to evacuate the system below 0 psig. Never operate the compressor with the suction or discharge service valves closed (frontseated).
Page 342 Figure 8.23 Compressor Plug Retaining Clip 8. Rotate the compressor to gain access to the power plug. Remove the power plug retaining clip (see Figure 8.23) by pulling out gently on the left side (to clear the shorter left locking tab and Retainer rotate the right locking tab) and then slide up and Tether...
Page 343 18. Using a backup wrench, torque the compressor connections as follows: Service Valve / Connection Torque Value Suction and Discharge Rotalocks 80 - 100 ft-lbs (109 - 136 Nm) Economizer Connection 38 - 42 ft-lbs (51 - 57 Nm) 19. Connect the new compressor discharge temperature sensor (CDT) connector. Wire-tie any loose wiring as appropriate.
Page 344 Unit uses either R-404A or R-452A refrigerant 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 345: Filter-Drier
Figure 8.24 Condenser/Radiator Assembly 1. Condenser/Radiator Assembly 6. Ambient Air Temperature Sensor (ATT) 2. Condenser Frame 7. Condenser/Radiator Assembly Mounting Bolts 3. Condenser Coil 8. Radiator Frame Mounting Bolts 4. Radiator 9. Radiator Mounting Brackets 5. Radiator Frame 10. Condenser Coil Mounting Brackets 8.9.3 Filter-Drier 8.9.3.1 Check Filter-Drier...
Page 346 8.9.5 Economizer Heat Exchanger 1. Pump down the low side. Refer to Section 8.7.2. 2. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and removing the negative battery cable. Disconnect the high voltage source and lockout/tagout the receptacle. 3.
Page 347 8.9.6 Stepper Test Harness Figure 8.26 Stepper Test Harness A stepper test harness (Carrier Transicold P/N 07- 00515) is available for testing the compressor suction modulation valve (CSMV) and evaporator expansion valve (EVXV). The test harness is installed by disconnecting the...
Page 348 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 07-00375-00SV), connect the 4-pin test cable supplied with the tester to the valve connector, and the cable wires to the tester in accordance with wire and terminal color.
Page 349 The stepper test harness, Section 8.9.6, (Carrier Transicold P/N 07-00515) (can also be used to test the EVXV. If the test harness is used, voltages will be different when measured direct or in-line. The stepper test harness cannot be used to test the ECXV.
Page 350 6. If there is no voltage reading, or if the voltage never rises to the 5 to 9 VAC level, it indicates a problem in the wiring or the SVM. Place the START/RUN−OFF switch in the OFF position and reconnect the starter wire.
Page 351 Testing the ECXV valve internal mechanism 1. To test the ECXV, install a stepper motor drive tester to the valve, refer to Section 8.7.1. 2. Use the stepper motor drive tester to close the ECXV completely, and run the unit for five minutes. 3.
Page 352: Coil Assembly
3. Remove coil, refer to “Replacing the Coil” above. 4. Unbraze valve from unit and braze new valve in place. Wrap valve in wet rag and point flame away from valve during brazing operation. 5. Install coil, refer to “Replacing the Coil” above. Leak check, evacuate the unit and charge in accordance with Section 8.7.
Page 353: Pressure Transducers
8.9.10.2 Replacing High Pressure Switch 1. Pump down the compressor. Refer to Section 8.7.2. 2. Disconnect wiring from switch, and remove switch. 3. Install switch after verifying switch settings. (Refer to following step b.) 4. Leak check, evacuate & dehydrate, and charge system as required. Refer to Section 8.7.2, 8.7.3...
Page 354 Figure 8.33 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 (Carrier Transicold P/N 07-00177-01) 5. Magnehelic Gauge (Carrier Transicold P/N 07-00177-00) 6. High Side Connection 62-11782...
Page 355 7. Attach an ohmmeter to the air switch electrical contacts to check switch action. NOTE Use a hand aspirator (Carrier Transicold P/N 07-00177-01), since blowing into tube by mouth may cause an incorrect reading. 8. With the gauge reading at zero, apply air pressure very slowly to the air switch. An ohmmeter will indicate continuity when switch actuates.
Page 356 8.10 Electrical System Component Service Procedures for servicing or maintaining the electrical system components are provided in the following sub- paragraphs. 8.10.1 Main Microprocessor Module (MM) For complete Main Microprocessor Module replacement instructions refer to Section 5.5.2. 8.10.2 Power Control Module (PCM) Figure 8.34 Power Control Module NOTE The buzzer, buzzer harness, fuses, door,...
Page 357 8.10.3 Stepper Valve Module (SVM) 1. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and removing the negative battery cable. Disconnect the high voltage source and lockout/tagout the receptacle. 2. Unlock the tabs on and remove the two 35 pin connectors and 8 pin connector from the front of the module. 3.
Page 358 Figure 8.35 CCB Location in Control Box NOTE At this point the sub panel may start to swing out of the box. It is best to hold it in while removing the last bolt. 9. Slide the sub panel towards the front of the box until the panel clears the lower studs, then tip the sub panel out on the control box, see Figure...
Page 359 8.10.6 Remote Control Boards (CCB, CAN, SVM) The remote control box houses three boards, the CAN Board (1REC), the Stepper Board (2REC), and the CCB Board (3REC). To service the remote boards do the following: 1. Ensure unit will not start automatically by disabling any two way communication, placing the START/ RUN- OFF switch in the OFF position and removing the negative battery cable.
Page 360 Figure 8.39 Faceplate Screw / CCB Screw Figure 8.42 CCB Board Installed 12. Place the back plate on an object to raise it an inch or so off of the work surface. With the four nylon spacers positioned over the four mounting screw holes place the new CCB over the back 15.
Page 361 Megohmmeter Test Procedure Check of the electrical insulation integrity and connections using a resistance tester (commonly known as a megohmmeter or Megger), such as Carrier Transicold part number 07-00481-00, that can be set to 1000V. CAUTION Before connecting a megohmmeter, place the Main Power switch in the OFF position.
Page 362: Light Bar
8.10.8 Light Bar The light bar may be tested using a 12 VDC source. To test the light bar: 1. Ensure the unit will not start automatically by Figure 8.47 Light Bar Connections placing the START/RUN-OFF switch in the OFF position and removing the negative battery cable.
Page 363 5. Check wiring between CT and pins 1CCB10, 1CCB12, 1CCB31, and 1CCB34 as required. 6. If a problem with the current sensors is suspected, check sensor output. Current sensor inputs to the mod- ule are rated at 16.7mV per Amp. For every Amp that is read at the wires coming from the GENCON or PSCON T1, T2 and T3 terminals with an amp meter, there should be a corresponding voltage reading on the blue, brown &...
Page 364 8. To remove motor remove four bolts that hold motor to the stator. 9. Complete the assembly in reverse order of removal. Coat motor shaft with never-seize before assembly. 10. Reinstall the negative battery cable, start unit and run Pretrip to check operation. Torque: 37 to 43 ft/lbs Fan Nut...
Page 365 8.10.12 Condenser Fan Assemblies 1. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and removing the negative battery cable. Disconnect the high voltage source and lockout/tagout the receptacle. 2. Disconnect the motor electrical connector. Note motor is assembled to allow routing of the wiring down the lower right hand leg of the welded support.
Page 366 8.10.13 Battery Charger (BTYC) NOTE A battery of known good condition must be connected to the charger before doing the following test. The charger operates only when the input voltage is between 275 VAC and 640VAC. If either limit is exceeded it will not function.
Page 367 8.10.14.2 Generator Replacement Service procedures for replacement of the generator (see Figure 8.55) involve removal of components as required to swing the unidrive assembly out, from the generator end, sufficient to allow removal of the generator from the back of the engine. The procedures that follow cover the general steps required. Minor modifications of the procedures may be required depending on the routing of wires within the unit being serviced.
Page 368 8.10.14.3 Generator Removal 1. Ensure the unit will not start automatically by placing the START/RUN-OFF switch in the OFF position and removing the negative battery cable. Disconnect the high voltage source and lockout/tagout the receptacle. 2. Remove the front roadside and curbside doors. 3.
Page 369 16. To prepare for removal of the rotor bolts, install Figure 8.54 Flywheel Locking Tool the flywheel locking tool (Carrier P/N 07-60083- 00, see Figure 8.51, Figure 8.54). 17. Swing the unidrive assembly out sufficient to remove the generator. 18. Remove the tape from the generator splice con- nections.
Page 370 WARNING Never disassemble the generator rotor from the stator due to the high force required to do so and the high magnetic field that will result. The field present when the rotor is disassembled from the stator may interfere with cardiac implants such as pacemakers and defibrillators. 24.
Page 371 33. Prepare the replacement generator power wires Figure 8.58 Generator Wires by installing four crimp splices (see Figure 8.58), one on each wire, and then route the wires through the cover grommet. 34. Bring the cover in place, using two flat washers on each, (only use one washer at 2 and 5 o’clock positions, see Figure...
Page 372: Sensor Checkout
8.10.15 Compressor Discharge Temperature Sensor Values for testing the sensor, in accordance with standard procedures, are provided in Table 8–4. To replace the compressor discharge temperature sensor (see Figure 8.61) do the following: 1. Ensure the unit will not start automatically by Figure 8.61 Compressor Discharge Temperature placing the START/RUN-OFF switch in the OFF Sensor...
Page 373 Table 8–3 Sensor Resistance Sensors AAT, RAT, SAT, ENCT, DTT, CST, EVOT, REMSN 1, 2, & 3 °F °C Ohms °F °C Ohms °F °C Ohms °F °C Ohms 336,500 -7.8 49,060 24.4 10,250 56.7 2,809 -38.9 312,600 -6.7 46,230 25.6 9,760 57.8...
Page 374 Table 8–4 Sensor Resistance (CDTS) °C °F Ohms °C °F Ohms °C °F Ohms °C °F Ohms 2,889,600 64.4 117,656 168.8 12,306 273.2 2,335 -36.4 2,532,872 68.0 107,439 172.4 11,524 276.8 2,223 -32.8 2,225,078 71.6 98,194 176.0 10,793 280.4 2,119 -29.2 1,957,446 75.2...
Page 375 Refer to the following tables for Temperature Pressure Charts for R-452A and R-4A refrigerants. Note that the liquid state pressure values and the vapor state pressure values of the R-452A refrigerant are different from those of the R-404A refrigerant.0 Table 8–5 R-404A Temperature Pressure Chart Temperature Pressure Temperature...
Page 376 Table 8–6 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...
Page 377 Table 8–6 Compressor Discharge Table 8–7 Compressor Suction Pressure Transducer Pressure/Voltage Pressure Transducer Pressure/Voltage PSIG Voltage PSIG Voltage -0.7 -5.0 -0.3 10.0 15.0 20.0 25.0 10.2 11.9 13.6 15.3 17.0 18.7 20.4 22.1 23.8 25.5 27.2 30.6 Table 8–8 Current Sensor Millivolt Output vs Current Sensed Amps MV Output Amps...
Page 379: Unit Troubleshooting
SECTION 9 Unit Troubleshooting Under no circumstances should anyone attempt to repair sealed module internal components. Should a problem develop with these components, contact your nearest Carrier Transicold dealer for replacement. NOTE Run a Pretrip and check all active alarms before continuing with troubleshooting.
Page 380 Indication/Trouble Possible Causes Action/Reference Section 9.1.2 Engine Starts Then Stops Fuel supply restricted Check No fuel in tank Check Leak in fuel system Check Faulty fuel control operation Engine Manual Plugged fuel filter 8.6.5 Plugged inlet screen to mechanical pump 8.6.3 Plugged inlet screen to electric pump 8.6.4...
Page 381 Indication/Trouble Possible Causes Action/Reference Section 9.1.6 Miscellaneous Engine Troubleshooting Air cleaner or hose restricted 8.6.10 Air in fuel system 8.6.2 Air vent restricted in fuel tank cap Clean Restricted fuel lines Engine Manual Loss of power Defective fuel injection pump Engine Manual Defective injector(s) or incorrect type Engine Manual...
Page 382 Generator Indication/Trouble Possible Causes Action/Reference Section Damaged harness Check No voltage with engine running GENCON damaged Check Open or short in stator windings Check Low engine speed Correct Low voltage Excessive load Check High resistance connections - connections warm or hot Clean and Tighten Fluctuating speed 8.6.12...
Page 383 Indication/Trouble Possible Causes Action/Reference Section 9.4.3 Unit Operates Long Or Continuously In Cooling Hot Load Allow time to pull down Refrigerated Compartment Defective or insufficient refrigerated compartment insula- Correct tion or air leak Abnormal pressure 9.4.8 Refrigeration system Temperature sensor malfunction 8.10.16 Check system for noncondensibles 8.7.2...
Page 384: Abnormal Noise
Indication/Trouble Possible Causes Action/Reference Section Defrost air switch (DAS) out of adjustment 8.9.12 Frequent defrost Wet load Normal Defrost air switch (DAS) out of adjustment 8.9.12 Does not terminate or cycles on defrost DTT malfunction 8.10.16 Hot Load Allow time to pull down Refrigerated Compartment Defective or insufficient refrigerated compartment insula-...
Page 385 Indication/Trouble Possible Causes Action/Reference Section 9.4.10 No Evaporator Air Flow Or Restricted Air Flow Frost on coil 8.9.12 Evaporator coil blocked Dirty coil 8.9.1 Evaporator fan rotating backwards 8.10.11 No or partial evaporator Evaporator fan defective 8.10.11 air flow Evaporator air flow blocked Check 9.4.11 Expansion Valve (EVXV) Malfunction...
Page 386 62-11782 9–8...
Page 387 SECTION 10 Wiring 10.1 Harness Connector Wire NOTE All illustrations provided in this section are looking at the connector connection end (with the wires in the back). BLACK WHITE Component Terminal PCM 19 Component Terminal HVB7 C SP 25 SP 15 MTLV F HVB7 D SATPWR A...
Page 388 BLACK GRAY Component Terminal Component Terminal AAT B LIV 1 AAT A LB H DP16 G DP16 H SP 29 DP16 C SS A DP16 D PCM 26 DP16 E PCM 27 CDT B PCM 23 CSP 3 SP 23 CDP 3 PCM 17 DP16 B...
Page 389 2SVM BLUE 1SVM BLACK Component Terminal Component Terminal CSMV A SP 15 CSMV B ES D CSMV C DM 1 CSMV D ES C DP16 N SP 13 DP16 J SP 16 DP16 K SP 14 DP16 L DM 10 DP16 M Unused terminals: None SP 17...
Page 390 3SVM BLUE BLACK Component Terminal ECXV E ECXV A ECXV B ECXV C Component Terminal ECXV D 1SVM 3 SP 17 ES H SP 18 SATCOM B 3SVM 32 ES G 3SVM 31 J1 A Unused terminals: 6 to 10, 12 to 21, 23 to 30, 33, SATCOM C 34 &...
Page 391 ENCU HVB7 From Terminal SP 15 SP 16 1MM 2 1MM 4 PCM 10 PMC 15 SP 14 SP 13 Component Terminal SP 10 ENCT B SP 23 ENSSN 2 Unused Terminals: None ENCT A RPS 3 ENOPS A ENOPS B ENCU GND A ENSSN 1 SP 18...
Page 392 HVB8 DP16 Engine Harness Connector Shown From Terminal From Terminal (Evaporator REM E Component) REM G 2MM 22 1DTT B REM J 2MM 11 1DTT A SP 26 2MM 5 1SAT A MTLV A 2MM 6 1SAT B MTLV B 2MM 7 EVOT A Unused Terminals: None...
Page 393 Splice Point No. Component Splice Point No. Component GND RING1 CSP 2 SATPWR B ECOP 2 SP 20 (+5v Power) LIV 2 CDP 2 (negative) DP16 R LB G HVB7 K SP 10 SP 23 (Ground) FH B HPS A (Power) AFAS B 3MM 16...
Page 394 1CCB 2CCB Component Terminal Component Terminal SP 62 HVB9 3 CCON A1 SP 60 SP 52 SP 61 HVB6 8 SP 52 HVB5 6 HVB6 3 HVB5 3 2CCB6 SP 63 SP 59 HTCON2 A1 SP 57 SP 55 HVB9 2 SP 51 SP 55 HVB5 7...
Page 395 MTLV 2REC Component Terminal HVB8 E Component Terminal HVB8 F EVXV1 E SP 30 EVXV1 A PCM 20 EVXV1 B PCM 33 EVXV1 C PCM 4 EVXV1 D SP 18 EVXV2 E SP 10 EVXV2 A Unused terminals: None EVXV2 B EVXV2 C 1REC EVXV2 D...
Page 396: Wiring Schematic
3REC Component Terminal SP 110 RMT EVCON A1 SP 108 SP 100 C1 A 1REC 2 3REC 18 RMT EVOP 2 RMT SAT A RMT EVOT1 B RMT EVOT1 A HTCON2 A1 C1 F SP 101 C1 J C1 B 3REC 7 RMT SAT B RMT DTT B...
Page 404 Central America and Mexico Carrier Transicold Carrier Transicold 700 Olympic Drive Ejercito Nacional 253-A Piso 5 Athens, GA 30601 USA Colonia Anahuac 11320 Mexico D.F. ©2021 Carrier Corporation. Printed in USA 03/21 Carrier, Carrier Transicold is a registered trademark of Carrier Corporation.

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