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Model

69NT40-489

T-259 Rev F

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Carrier Transicold Division, Carrier Corporation, P.O. Box 4805, Syracuse, N.Y. 13221

SERVICE MANUAL

OPERATION AND

 Carrier Corporation 1995 D Printed in U. S. A. 1195

CONTAINER REFRIGERATION UNIT

MODEL

69NT40-489

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i

TABLE OF CONTENTS

Section Page

1 DESCRIPTION 1-1 ........................................................

1.1 Introduction ........................................................... 1-1

1.2 General Description 1-10 ....................................................

1.3 Refrigeration System Data 1-10 ...............................................

1.4 Electrical Data 1-11 .........................................................

1.5 Voltage Switch (Optional) and Power Autotransformer (Optional) 1-11 .............

1.6 Refrigeration Circuit 1-12 ....................................................

1.7 Safety and Protective Devices 1-14 ............................................

1.8 Fresh Air Makeup Vent 1-14 .................................................

1.9 Remote Monitoring (Optional) 1-15 ..........................................

1.10 Suction Solenoid Valve 1-15 ..................................................

1.11 Water-Cooled Condenser (Optional) 1-15 ......................................

1.12 Micro-Link 2 Controller Module 1-16 ..........................................

1.12.1 Brief Description 1-16 ..............................................

1.12.2 Controller Programming (Memory) Cards 1-16 .........................

1.12.3 General Layout of the Controller Section 1-18 ..........................

1.12.4 Controller Temperature Control 1-19 ..................................

1.12.5 Controller Function Codes 1-21 ......................................

1.12.6 Controller Alarms 1-24 ..............................................

1.13 Pre-Trip Diagnostics 1-27 .....................................................

1.13.1 Pre-Trip 1-28 ......................................................

1.13.2 Pre-Trip Mode 1-29 .................................................

1.14 DataCORDER Module (Optional) 1-32 ........................................

1.14.1 Brief Description 1-32 ..............................................

1.14.2 DataCORDER Programming (Memory) Cards 1-33 .....................

1.14.3 Functions 1-33 .....................................................

1.14.4 Status LED’s 1-35 ..................................................

1.14.5 DataCORDER Function Codes 1-35 ..................................

1.14.6 DataCORDER Alarm Codes 1-36 ....................................

1.14.7 USDA/Message Trip Comment 1-37 ...................................

1.14.8 USDA Recording 1-37 ..............................................

1.14.9 Pre-Trip Data Recording 1-38 ........................................

1.14.10 DataCORDER Communications 1-39 .................................

1.15 USDA Cold Treatment Procedure 1-39 .........................................

1.16 Humidity Control (Optional) 1-40 .............................................

1.17 Nitrogen Feed (Optional) 1-40 ................................................

2 OPERATION .......................................................... 2-1

2.1 Pre-Trip Inspection (Before Starting) 2-1 ......................................

2.2 Starting and Stopping Instructions 2-1 ........................................

2.3 After Starting Inspection 2-1 ................................................

2.4 Unit Operation 2-1 ........................................................

2.4.1 Crankcase Heater (Optional) 2.1 ....................................

2.4.2 Cooling --- Controller Set BELOW ---10_C (+14_F) or

---5_C (+23_F) optionally 2-1 .......................................

2.4.3 Controller Set ABOVE ---10_C (+14_F) or ---5_C (+23_F) optionally 2-2 .

2.4.4 Defrost 2-4 .......................................................

2.4.5 Economy 2-5 .....................................................

3 TROUBLESHOOTING 3-1 .................................................

3.1 Unit Will Not Start or Starts Then Stops 3-1 ...................................

3.2 Unit Runs But Has Insufficient Cooling 3-1 ....................................

3.3 Unit Operates Long or Continuously In Cooling 3-1 ............................

3.4 Unit Will Not Heat or Has Insufficient Heating 3-2 .............................

3.5 Unit Will Not Terminate Heating 3-2 .........................................

3.6 Unit Will Not Defrost Properly 3-2 ...........................................