Carrier TRANSICOLD 69NT40-541-200

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Container Refrigeration

OPERATIONS AND SERVICE

For

69NT40-541-200 TO 299

Container Refrigeration Units

T-317 Rev B

Main Page

Table of Contents6
Fresh Air Makeup Vent25
Figure 3.1 Refrigeration Unit - Front Section25
Evaporator Section26
Figure 3.2 Evaporator Section26
Figure 3.3 Compressor Section27
Air-Cooled Condenser Section28
Figure 3.4 Air-Cooled Condenser Section28
Water-Cooled Condenser Section29
Figure 3.5 Water-Cooled Condenser Section29
Control Box Section30
Communications Interface Module30
Figure 3.6 Control Box Section30
Refrigeration System Data31
Electrical Data32
Safety and Protective Devices33
Table 3-1 Safety and Protective Devices33
Refrigeration Circuit34
Figure 3.7 Refrigeration Circuit Schematic with Receiver35
Figure 3.8 Refrigeration Circuit Schematic with Water Cooled Condenser36
Microprocessor37
Temperature Control Microprocessor System37
Figure 4.1 Temperature Control System37
Key Pad38
Figure 4.2 Key Pad38
Display Module39
Figure 4.3 Display Module39
Figure 4.4 Figure 3- 4 Micro-Link 3 Controller39
Controller40
Controller Software40
Configuration Software (Configuration Variables)40
Operational Software (Function Codes)40
Modes of Operation41
Temperature Control - Perishable Mode41
Evaporator Fan Operation41
Defrost Interval41
Failure Action41
Generator Protection41
Condenser Pressure Control42
Arctic Mode42
Perishable Mode - Conventional42
Perishable Mode - Economy42
Perishable Mode - Dehumidification43
Perishable, Dehumidification - Bulb Mode43
Temperature Control - Frozen Mode44
Frozen Mode - Conventional44
Frozen Mode - Economy44
Controller Alarms44
Unit Pre-Trip Diagnostics45
Datacorder46
Description46
Datacorder Software47
Sensor Configuration (Dcf02)47
Table 4-2 Datacorder Configuration Variables47
Table 4-3 Datacorder Standard Configurations48
Figure 4.5 Figure 3- 5 Standard Configuration Report49
Logging Interval (Dcf03)50
Thermistor Format (Dcf04)50
Sampling Type (Dcf05 & Dcf06)50
Alarm Configuration (Dcf07 - Dcf10)50
Datacorder Power-Up50
Pre-Trip Data Recording50
Datacorder Communications51
Figure 4.6 Data Reader51
Figure 4.7 Databank Card51
USDA Cold Treatment52
USDA Cold Treatment Procedure53
Datacorder Alarms54
Table 4-4 Controller Configuration Variables54
Table 4-5 Controller Function Codes56
Table 4-6 Controller Alarm Indications60
Table 4-7 Controller Pre-Trip Test Codes64
Table 4-8 Datacorder Function Code Assignments69
Table 4-9 Datacorder Pre-Trip Result Records70
Table 4-10 Datacorder Alarm Indications71
Operation73
Inspection (before Starting)73
Connect Power73
Connection to 380/460 Vac Power73
Connection to 190/230 Vac Power73
Adjust Fresh Air Makeup Vent74
Upper Fresh Air Makeup Vent74
Figure 5.1 Autotransformer74
Lower Fresh Air Makeup Vent75
Figure 5.2 Make up Air Flow Chart75
Fresh Air Position Sensor76
Connect Water-Cooled Condenser76
Water-Cooled Condenser with Water Pressure Switch76
Water-Cooled Condenser with Condenser Fan Switch76
Connect Remote Monitoring Receptacle77
Starting and Stopping Instructions77
Starting the Unit77
Stopping the Unit77
Start-Up Inspection77
Physical Inspection77
Check Controller Function Codes77
Start Temperature Recorder77
Complete Inspection78
Pre-Trip Diagnosis78
Table 5-1 Pre-Trip Selection Menu78
Observe Unit Operation79
Crankcase Heater79
Probe Check79
5.10 Sequence of Operation80
Figure 5.3 Controller Operation - Perishable Mode80
Figure 5.4 Controller Operation - Frozen Mode81
Sequence of Operation - Perishable Mode Cooling82
Figure 5.5 Perishable Mode Cooling82
Sequence of Operation - Perishable Mode Heating83
Figure 5.6 Perishable Mode Heating83
Sequence of Operation - Frozen Mode Cooling84
Figure 5.7 Frozen Mode84
Sequence of Operation - Defrost85
Figure 5.8 Defrost85
Troubleshooting87
Unit will Not Start or Starts then Stops87
Unit Operates Long or Continuously in Cooling87
Unit Runs but Has Insufficient Cooling88
Unit will Not Heat or Has Insufficient Heating88
Unit will Not Terminate Heating88
Unit will Not Defrost Properly88
Abnormal Pressures (Cooling)89
Abnormal Noise or Vibrations89
Controller Malfunction89
6.10 no Evaporator Air Flow or Restricted Air Flow90
6.11 Thermostatic Expansion Valve Malfunction90
6.12 Autotransformer Malfunction90
Service91
Repairing the Refrigeration System91
Piercing Valves91
Removal92
Manifold Gauge Set92
Figure 7.1 Piercing Valve92
Figure 7.2 Manifold Gauge Set92
Refrigerant Recovery93
Figure 7.3 Manifold Gauge Set Connection93
Refrigerant Leak Checking94
Evacuation and Dehydration95
General95
Preparation95
Procedure - Complete System95
Refrigerant Charge96
Checking the Refrigerant Charge96
Adding Refrigerant to System (Full Charge)96
Adding Refrigerant to System (Partial Charge)96
Emergency Shipboard Refrigerant Charging Procedure96
Figure 7.4 Vacuum Pump Connections97
Compressor98
Removal and Replacement of Compressor98
Figure 7.5 Compressor98
Compressor Disassembly99
Figure 7.6 Exploded View of Valve Plate100
Figure 7.7 Bottom Plate Removed100
Figure 7.8 Oil Pump and Bearing Head101
Figure 7.9 Low Profile Oil Pump102
Figure 7.10 Motor End Cover102
Figure 7.11 Equalizing Tube and Lock Screw Assembly103
Figure 7.12 Crankshaft Assembly103
Compressor Reassembly104
Preparation104
Figure 7.13 Suction Valve & Positioning Springs104
Figure 7.14 Piston Ring104
Installing the Components105
Compressor Oil Level105
High Pressure Switch106
Replacing High Pressure Switch106
Checking High Pressure Switch107
7.10 Condenser Coil107
Figure 7.15 High Pressure Switch Testing107
7.11 Condenser Fan and Motor Assembly108
7.12 Water Cooled Condenser Cleaning108
Figure 7.16 Water-Cooled Condenser Cleaning - Forced Circulation110
Figure 7.17 Water Cooled Condenser Cleaning - Gravity Circulation110
7.13 Filter-Drier111
7.14 Thermostatic Expansion Valve111
Figure 7.18 Thermostatic Expansion Valve Bulb111
Checking Superheat112
Hermetic Valve Replacement112
Figure 7.19 Hermetic Thermostatic Expansion Valve Brazing Procedure112
Semi-Hermetic Valve Replacement113
7.15 Evaporator Coil and Heater Assembly113
Evaporator Coil Replacement114
Evaporator Heater Replacement114
7.16 Evaporator Fan and Motor Assembly114
Replacing the Evaporator Fan Assembly114
Disassemble the Evaporator Fan Assembly114
Assemble the Evaporator Fan Assembly115
7.17 Evaporator Fan Motor Capacitors115
When to Check for a Defective Capacitor115
Figure 7.20 Evaporator Fan Assembly115
Removing the Capacitor116
Checking the Capacitor116
7.18 Suction Modulation Valve116
Figure 7.21 Suction Modulation Valve (SMV)116
Precheck Procedure117
Checking the Stepper Valve118
Checking the Controller118
7.19 Autotransformer119
Power Factor Corrector Capacitors (Pfc)119
Figure 7.22 Controller Section of the Control Box120
Table 7-1 Sensor Temperature/Resistance Chart123
Figure 7.23 Sensor Types124
Figure 7.24 Sensor and Cable Splice125
Figure 7.25 Supply Sensor Positioning125
Figure 7.26 Return Sensor Positioning125
Figure 7.27 Electronic Partlow Temperature Recorder126
Figure 7.28 Door Hinge Repair130
Table 7-2 Crack, Chip & Hole Repair Kit130
Table 7-3 Insert Repair Kit131
Table 7-4 Drill Information131
Figure 7.29 Insert Location132
Figure 7.30 Communications Interface Installation133
Table 7-5 Recommended Bolt Torque Values (Dry, Non-Lubricated for 18-8 Stainless Steel)134
Table 7-6 Wear Limits for Compressors134
Table 7-7 Required Tools135
Table 7-8 Compressor Torque Values136
Table 7-9 R-134A Temperature - Pressure Chart137
Figure 7.31 R-134A Compressor Pressure and Motor Current Curves Vs Ambient Temp (1 of 2)138
Figure 7.32 R-134A Compressor Pressure and Motor Current Curves Vs Ambient Temp (2 of 2)139
Figure 8.1 Legend142
Figure 8.2 Schematic Diagram143
Figure 8.3 Schematic Diagram - Transfresh and Vent Position Sensors (VPS)144
Figure 8.4 Schematic Diagram, Wiring Diagram - Electronic Partlow Recorder145

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Carrier TRANSICOLD 69NT40-541-200 Specifications

General

Brand	Carrier TRANSICOLD
Model	69NT40-541-200
Category	Refrigerator
Language	English

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