Carrier transicold thinline инструкция по эксплуатации

Container Refrigeration

2

5

18

11, 12, 13

19 20

17

8

6 7

7 8

6

OPERATION, SERVICE AND PARTS SUPPLEMENT

For

Dual Temperature Container Refrigeration Units

69NT40-541-304 and 69NT40-541-345

T-319 Rev A

OPERATION, SERVICE AND PARTS SUPPLEMENT

For

Dual Temperature Container Refrigeration Units

69NT40-541-304 and 69NT40-541-345

Carrier Corporation, 2017 Printed in U. S. A. March 2017

i T-319

TABLE OF CONTENTS

PARAGRAPH NUMBER Page

SAFETY SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.1 GENERAL SAFETY NOTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.2 FIRST AID . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.3 OPERATING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.4 MAINTENANCE PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.5 UNIT LABEL IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

1.6 SPECIFIC WARNING AND CAUTION STATEMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2 CONFIGURATION IDENTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.1 GENERAL DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.1.1 Refrigeration Unit — Front Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2.1.2 Evaporator Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.1.3 Compressor Tubing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

2.1.4 Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.1.5 Control Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

2.1.6 Back Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

2.2 REMOTE EVAPORATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.2.1 Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

2.2.2 Refrigeration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

2.2.3 Electrical Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

2.2.4 Heater Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

2.3 DUAL TEMP ASSEMBLY INSTALLATION KIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

2.4 REFRIGERATION SYSTEM DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

2.5 ELECTRICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 215

2.6 SAFETY AND PROTECTIVE DEVICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

2.7 REFRIGERATION CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218

MICROPROCESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.1 TEMPERATURE CONTROL MICROPROCESSOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.1.1 Display Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

3.1.2 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

3.2 OPERATIONAL SOFTWARE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.2.1 Enabling Dual Temperature Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

3.2.2 Remote Compartment Set Point Change (SEtPt) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.2.3 Remote Compartment Sensor Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.2.4 Remote Evaporator SMV Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.2.5 Remote Evaporator Defrost Interval . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

3.2.6 Remote Enable Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.2.7 Remote Minimum Temperature Delta . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.3 REMOTE COMPARTMENT ALARMS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

3.4 UNIT PRE-TRIP DIAGNOSTICS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.1 INSPECTION (BEFORE STARTING) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

4.2 CONNECT POWER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

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4.3 STARTING AND STOPPING INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.3.1 Starting the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.3.2 Stopping the Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.4 START-UP INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.4.1 Physical Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.4.2 Check Controller Function Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.4.3 Complete Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.5 PRE-TRIP DIAGNOSIS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

4.6 DEFROST OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

4.6.1 Dual Temperature Remote Defrost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.1 REMOTE EVAPORATOR NOT RUNNING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.2 REMOTE EVAPORATOR RUNS BUT HAS INSUFFICIENT COOLING . . . . . . . . . . . . . . . . . . . 51

5.3 REMOTE SUPPLY SENSOR MALFUNCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.4 HOST UNIT TRIGGERS A SHUTDOWN ALARM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

DUAL TEMPERATURE SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.1 SECTION LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.2 SERVICE VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.3 MANIFOLD GAUGE SET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

6.4 PUMPING DOWN THE UNIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

6.5 REFRIGERANT LEAK CHECKING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.6 EVACUATION AND DEHYDRATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.6.1 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.6.2 Preparation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65

6.6.3 Procedure — Complete System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

6.6.4 Procedure — Partial System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

6.7 REFRIGERANT CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

6.7.1 Checking the Refrigerant Charge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

6.7.2 Adding Refrigerant to System (Full Charge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

6.7.3 Adding Refrigerant to System (Partial Charge) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67

6.8 SERVICING SOLENOID VALVES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

6.8.1 Host Solenoid Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

6.8.2 Remote Solenoid Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

6.8.3 Replacing Solenoid Valve Internal Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

ELECTRICAL WIRING SCHEMATIC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

7.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

SERVICE PARTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

8.1 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81

9 REFRIGERATION UNIT — AREA LOCATOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

10 CONTROL BOX — SHIELDS REMOVED, STD ELECTRICAL COMPONENTS . . . . . . . . . . . . . 101

11 COMPRESSOR TUBING (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111

12 COMPRESSOR TUBING (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 121

13 RECEIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131

14 EVAPORATOR COIL — REAR PANELS REMOVED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 141

15 BACK PANEL ASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 151

16 LABELS AND DECALS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 161

17 REMOTE EVAPORATOR — FRAME . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

18 REMOTE EVAPORATOR — REFRIGERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181

iii T-319

19 REMOTE EVAPORATOR — ELECTRICAL KIT (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . 191

20 REMOTE EVAPORATOR — ELECTRICAL KIT (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . 201

21 REMOTE EVAPORATOR — WIRE HARNESS (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . 211

22 REMOTE EVAPORATOR — WIRE HARNESS (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . 221

23 REMOTE EVAPORATOR — HEATER KIT (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . 231

24 REMOTE EVAPORATOR — HEATER KIT (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . 241

25 REMOTE EVAPORATOR — INSTALLATION COMPONENTS . . . . . . . . . . . . . . . . . . . . . . . . . . 251

26 REMOTE EVAPORATOR — HEATER JUNCTION BOX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261

INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . INDEX1

v T-319

LIST OF ILLUSTRATIONS

FIGURE NUMBER Page

Figure 2.1 Refrigeration Unit Front Section (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Figure 2.2 Refrigeration Unit Front Section (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Figure 2.3 Evaporator Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

Figure 2.4 Compressor Section (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 2.5 Compressor Section (69NT-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Figure 2.6 Condenser Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Figure 2.7 Control Box (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 2.8 Control Box (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Figure 2.9 Back Panel Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Figure 2.10 Remote Evaporator — Frame (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Figure 2.11 Remote Evaporator — Frame (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210

Figure 2.12 Remote Evaporator — Refrigeration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211

Figure 2.13 Remote Evaporator — Electrical Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 212

Figure 2.14 Remote Evaporator — Heater Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 213

Figure 2.15 Remote Evaporator — Dual Temperature Installation Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214

Figure 2.16 Refrigeration Circuit Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219

Figure 3.1 Display Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Figure 3.2 Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Figure 6.1 Service Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61

Figure 6.2 Manifold Gauge Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Figure 6.3 R-134a Manifold Gauge/Hose Set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Figure 6.4 Refrigeration System Service Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Figure 6.5 Compressor Service Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66

Figure 6.6 Host Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Figure 6.7 Remote Solenoid Valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Figure 6.8 Remote Solenoid Valves — Internal Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 610

Figure 7.1 Legend (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72

Figure 7.2 Schematic (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73

Figure 7.3 Unit Wiring Diagram — Sheet 1 (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Figure 7.4 Unit Wiring Diagram — Sheet 2 (69NT40-541-304) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75

Figure 7.5 Legend (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76

Figure 7.6 Schematic (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Figure 7.7 Unit Wiring Diagram — Sheet 1 (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78

Figure 7.8 Unit Wiring Diagram — Sheet 2 (69NT40-541-345) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

T-319 vi

LIST OF TABLES

TABLE NUMBER Page

Table 21 Safety and Protective Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 217

Table 31 Keypad Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Table 32 Dual Temp Display/Select Functions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Table 33 Remote Controller Alarm Indications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Table 34 Remote Controller Pre-Trip Test Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Table 41 Pre-Trip Selection Menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

11 T-319

SECTION 1

SAFETY SUMMARY

1.1 GENERAL SAFETY NOTICES

The following general safety notices augment the specific warnings and cautions appearing elsewhere in this sup- plement. They are recommended precautions that must be understood and applied during operation and mainte- nance of the equipment covered herein. The general safety notices are presented in the following three sections labeled: First Aid, Operating Precautions and Maintenance Precautions. A listing of the specific warnings and cau- tions appearing elsewhere in the supplement follows the general safety notices.

1.2 FIRST AID

An injury, no matter how slight, should never go unattended. Always obtain first aid or medical attention immediately.

1.3 OPERATING PRECAUTIONS

Always wear safety glasses and hearing protection.

Keep hands, clothing and tools clear of the evaporator and condenser fans.

No work should be performed on the unit until all circuit breakers and start-stop switches are turned off, and power supply is disconnected.

Always work in pairs. Never work on the equipment alone.

In case of severe vibration or unusual noise, stop the unit and investigate.

1.4 MAINTENANCE PRECAUTIONS

Beware of unannounced starting of the evaporator and condenser fans. Do not open the condenser fan grille or evaporator access panels before turning power off, disconnecting and securing the power plug.

Be sure power is turned off before working on motors, controllers, solenoid valves and electrical control switches. Tag circuit breaker and power supply to prevent accidental energizing of circuit.

Do not bypass any electrical safety devices, e.g. bridging an overload, or using any sort of jumper wires. Problems with the system should be diagnosed, and any necessary repairs performed, by qualified service personnel.

When performing any arc welding on the unit or container, disconnect all wire harness connectors from the mod- ules in both control boxes. Do not remove wire harness from the modules unless you are grounded to the unit frame with a static safe wrist strap.

In case of electrical fire, open circuit switch and extinguish with CO2 (never use water).

1.5 UNIT LABEL IDENTIFICATION

To help identify the label hazards on the unit and explain the level of awareness each one carries, an explanation is

given with the appropriate consequences:

DANGER! DANGER warns against an immediate hazard which WILL result in severe personal injury or death.

WARNING! WARNING warns against hazards or unsafe conditions which COULD result in severe personal injury or death.

CAUTION! CAUTION warns against potential hazard or unsafe practices which could result in minor personal injury.

T-319 12

NOTICE NOTICE warns against potential product or property damage.

1.6 SPECIFIC WARNING AND CAUTION STATEMENTS

The statements listed below are applicable to the refrigeration unit and appear elsewhere in this manual. These recommended precautions must be understood and applied during operation and maintenance of the equipment covered herein.

WARNING! Beware of unannounced starting of the evaporator and condenser fans. The unit may cycle the fans and compressor unexpectedly as control requirements dictate.

WARNING! Do not attempt to remove power plug(s) before turning OFF start-stop switch (ST), unit circuit breaker(s) and external power source.

WARNING! Make sure the power plugs are clean and dry before connecting to any power receptacle.

WARNING! Never use air for leak testing. It has been determined that pressurized, air-rich mixtures of refrigerants and air can undergo combustion when exposed to an ignition source.

CAUTION! Pre-trip inspection should not be performed with critical temperature cargoes in the container.

CAUTION! When Pre-Trip key is pressed, dehumidification and bulb mode will be deactivated. At the com- pletion of Pre-Trip activity, dehumidification and bulb mode must be reactivated.

CAUTION! When condenser water flow is below 11 lpm (3 gpm) or when water-cooler is not in use, the CFS switch MUST be set to position I or the unit will not operate properly.

CAUTION! Pre-trip inspection should not be performed with critical temperature cargoes in the container.

CAUTION! When Pre-Trip key is pressed, dehumidification and bulb mode will be deactivated. At the com- pletion of Pre-Trip activity, dehumidification and bulb mode must be reactivated.

13 T-319

CAUTION! When a failure occurs during automatic testing the unit will suspend operation awaiting opera- tor intervention.

CAUTION! When Pre-Trip test Auto 2 runs to completion without being interrupted, the unit will terminate pre-trip and display Auto 2 end. The unit will suspend operation until the user depresses the ENTER key!

CAUTION! The unit will remain in the full cooling mode as long as the emergency bypass switch is in the BYPASS position and the MODE SWITCH is in the FULL COOL position. If the cargo may be damaged by low temperatures, the operator must monitor container temperature and manually cycle operation as required to maintain temperature within required limits.

CAUTION! The unit will remain in the DEFROST mode as long as the emergency defrost switch is in the DEFROST position. To prevent cargo damage, the operator must monitor container tempera- ture and manually cycle operation as required to maintain temperature within required limits.

CAUTION! To prevent trapping liquid refrigerant in the manifold gauge set, be sure set is brought to suc- tion pressure before disconnecting.

CAUTION! Do not over tighten or damage the enclosing tube assembly. Torque to 200-inch pounds (2.3 Mkg). Also make sure all parts are placed on the enclosing tube in proper sequence to avoid premature coil burnout.

21 T-319

SECTION 2

DESCRIPTION

INTRODUCTION

This technical supplement contains information specific to the 69NT40-541-304 and 69NT40-541-345 dual tem- perature system. It is to be used in conjunction with the Service Parts List and the Operation and Service Manual for 69NT40-541-300 to 399 series units. The information in this manual is designed to supplement both the Service Parts List and the Operation and Service Manual.

The Carrier Transicold model 69NT40-541-304 and 69NT40-541-345 dual temperature system combines the stan- dard ThinLine host evaporator with a dual discharge remote evaporator, which is used for refrigeration in a second compartment. The remote evaporator is mounted on the ceiling of the rear compartment and connected to the host unit by refrigerant lines and control wiring. The two compartments are separated by an insulated bulkhead, which can be moved within a range of 12 feet to accommodate varied load sizes.

CONFIGURATION IDENTIFICATION

Unit identification information is provided on a plate located near the compressor. The plate provides the unit model number, the unit serial number and the unit parts identification number (PID). The model number identifies the overall unit configuration, while the PID provides information on specific optional equipment, factory provision to allow for field installation of optional equipment and differences in detailed parts.

Configuration identification for the models covered herein may be obtained on the Container Products Group Infor- mation Center by authorized Carrier Transicold Service Centers.

2.1 GENERAL DESCRIPTION

2.1.1 Refrigeration Unit — Front Section

The design of the refrigeration unit allows for access to the majority of components from the front (see Figure 2.1). The unit model number, serial number, and parts identification number (PID) can be found on the serial plate to the left of the compressor.

The dual temperature system utilizes a remote evaporator kit, which contains the components necessary for dual temperature operation.

This configuration also affects the refrigeration unit, adding refrigerant connections for the remote evaporator, addi- tional contactors in the electrical kit, a larger receiver, a host evaporator liquid line solenoid valve, and a different function code label.

T-319 22

Figure 2.1 Refrigeration Unit Front Section (69NT40-541-304)

1. Labels and Decals 2. Control Box 3. Receiver 4. Host Liquid Line Solenoid Valve (Location)

5. Compressor Tubing 6. Evaporator Coil 7. Back Panel Assembly

— — — — —

1

2

3

4

5

6 7

23 T-319

Figure 2.2 Refrigeration Unit Front Section (69NT40-541-345)

1. Labels and Decals 2. Control Box 3. Receiver 4. Host Liquid Line Solenoid Valve (Location)

5. Compressor Tubing 6. Evaporator Coil 7. Back Panel Assembly

— — — — —

1

2

3

4

5

6 7

T-319 24

2.1.2 Evaporator Section

The evaporator section is equipped with additional refrigerant piping required to accommodate the remote evapo- rator assembly (see Figure 2.3).

Figure 2.3 Evaporator Section

1. Host Unit Suction Line 2. Suction Line from Remote Evaporator 3. Liquid Line from Host Liquid Solenoid Valve

(HLSV) to Host TXV

4. Liquid Line to HLSV 5. Suction Line from Remote Evaporator 6. Liquid Line to Remote Evaporator

— — — — —

2.1.3 Compressor Tubing

Units equipped with the dual temperature system include a secondary compressor suction line assembly. This assembly includes a stepper motor valve and a stepper motor power pack. The secondary tubing line runs parallel to the primary line.

1 2 3 4

5 6

2

25 T-319

Figure 2.4 Compressor Section (69NT40-541-304)

1. Stepper Motor Valve Assembly 2. Connector to Power Pack 3. Stepper Motor Power Pack for Remote Evaporator

SMV

4. Tube Assembly 5. Suction Service Valve 6. Suction Line from Remote Evaporator 7. Suction Line from Host Evaporator

— — — — —

Figure 2.5 Compressor Section (69NT-541-345)

1. Stepper Motor Valve Assembly 2. Connector to Power Pack 3. Stepper Motor Power Pack for Remote Evaporator

SMV

4. Tube Assembly 5. Suction Service Valve 6. Suction Line from Remote Evaporator 7. Suction Line from Host Evaporator

— — — — —

1

2

3

4

5

6 7

1

2

3

4

5

6

7

T-319 26

2.1.4 Receiver

The dual temperature system includes a larger receiver designed to accommodate the additional refrigerant required for this configuration.

Figure 2.6 Condenser Section

1. Receiver 2. Sight Glass 3. Moisture-Liquid Indicator 4. Fusible Plug OR Rupture Disc 5. Liquid Line Valve Bracket

6. Liquid Line Valve 7. Host Liquid Line Solenoid Valve Body 8. Host Liquid Line Solenoid Valve Coil 9. Quench Valve

— — — — —

2.1.5 Control Box

The dual temperature system includes four additional contactors (PA, PB, VE, VH) and an auxiliary contact as illus- trated in Figure 2.7.

1

2

2

3 4

5

67

8

4

9

27 T-319

Figure 2.7 Control Box (69NT40-541-304)

Figure 2.8 Control Box (69NT40-541-345)

1. Phase Contactors (PA, PB) 2. Remote Evaporator Fan Contactor (VE)

3. Remote Defrost Heater Contactor (VH) 4. Auxiliary Contactor

— — — — —

MANUAL DEFROST/ INTERVAL

VE

PB

VH

PA

1

2 3 4

MANUAL DEFROST/ INTERVAL

VE

PB

VH

PA

1

2 3 4

T-319 28

2.1.6 Back Panel Assembly

The dual temperature system includes a grille insert with slots for the remote connections as illustrated in Figure 2.9.

Figure 2.9 Back Panel Assembly

1. Grille Insert 2. Suction Line from Remote Evaporator

3. Liquid Line to Remote Evaporator 4. Top Grill

— — — — —

1 2 3 4

29 T-319

2.2 REMOTE EVAPORATOR

The dual temperature system includes a remote evaporator assembly. This assembly consists of three major com- ponents: the frame, the guard, and several clamp assemblies that accommodate the additional lines.

Refrigerant piping and wiring harness are mounted within the ceiling box recess to guard against damage to the components.

2.2.1 Frame

The remote evaporator frame accommodates the refrigeration components, electrical kit, wire harness, and heater kit (see Figure 2.10).

Figure 2.10 Remote Evaporator — Frame (69NT40-541-304)

1. Evaporator Skin Assembly 2. Evaporator Access Panel 3. Evaporator Top Frame

4. Evaporator Drain Pan 5. Blower Motor Venturi Ring

— — — — —

Side View

1

2

3

4

5

1

T-319 210

Figure 2.11 Remote Evaporator — Frame (69NT40-541-345)

1. Evaporator Skin Assembly 2. Evaporator Access Panel 3. Evaporator Top Frame

4. Evaporator Drain Pan 5. Blower Motor Venturi Ring

— — — — —

Side View

1

2

3

4

5

1

211 T-319

2.2.2 Refrigeration

An additional liquid line solenoid valve assembly is included in the dual temperature system. This assembly con- sists of a solenoid valve, solenoid coil, and a thermal expansion valve as illustrated in Figure 2.12. The solenoid valve assembly is housed in the remote evaporator frame.

Figure 2.12 Remote Evaporator — Refrigeration

1. Remote Liquid Line Solenoid / TXV Valve Assembly 2. Remote Liquid Line Solenoid Valve (RLSV) 3. Solenoid Coil

4. TXV Adapter 5. TXV Orifice 6. TXV Expansion Valve

— — — — —

1

2

3 4 5 6

T-319 212

2.2.3 Electrical Kit

The dual temperature system includes an additional electrical kit (see Figure 2.13). This kit consists of two motor/ fan assemblies, a defrost sensor thermistor assembly, a harness, and trim. This assembly is housed in the remote evaporator frame.

Figure 2.13 Remote Evaporator — Electrical Kit

1. Motor Fan Assembly 2. MHD-1100 Decal (S/N Plate) 3. MHD-1100 Evaporator Harness 4. Remote Drain Line Heater (RDLH)

5. Fan Motor Bracket 6. Remote Defrost Sensor Thermistor Assembly

(RDTS) 7. Remote Return Air Sensor Assembly

— — — — —

A A

VIEW B-BVIEW A-A

B

B

1

23

4

5

6

7

213 T-319

2.2.4 Heater Kit

The dual temperature system includes an additional heater kit (see Figure 2.14). This kit is located in the remote evaporator frame, and consists of six resistance heaters and stainless steel heater clips.

Figure 2.14 Remote Evaporator — Heater Kit

T-319 214

2.3 DUAL TEMP ASSEMBLY INSTALLATION KIT

The dual assembly installation kit includes tube and ring clamps, which are used to secure the high voltage cable, liquid line, suction line, and low voltage cable that connect the remote evaporator to the refrigeration unit. The remote guard is used to protect the remote evaporator frame assembly from damage. It is fastened to the under- side of the frame assembly (see Figure 2.15).

Figure 2.15 Remote Evaporator — Dual Temperature Installation Kit

High Voltage Cable

Liquid Line

Suction Line

Low Voltage Cable

215 T-319

2.4 REFRIGERATION SYSTEM DATA

2.5 ELECTRICAL DATA

a. Compressor/Motor Assembly

Number of Cylinders 6

Model 06DR

CFM 41

Weight (Dry) 118 kg (260 lb)

Approved Oil Castrol Icematic

Oil Charge degrees 3.6 liters (7.6 US pints)

Oil Sight Glass The oil level range, with the compressor off, should be between the bottom and

one-eighth level of the sight glass

b. Expansion Valve Superheat

Host Unit Verify at -18C (0F) container box tem- perature -13.3 to -11.1C (8 to 12F)

Remote Unit Verify at 0C (32F) container box tem- perature -10 to -6.1C (14 to 21F)

c. Heater Termination Thermostat

Host Unit Opens: 54 ( 3)C = 130 ( 5)F Closes: 38 ( 4C = 100 ( 7)F

Remote Unit Opens: 49 ( 3)C = 120 ( 5)F Closes: 26 ( 4)C = 79 ( 7)F

d. High Pressure Switch Cutout 25 (1.0) kg/cm2 = 350 (10) psig

Cut-In 18 ( 0.7) kg/cm2 = 250 ( 10) psig

e. Refrigerant Charge Unit Configuration Charge Requirements: R-134a

Receiver 4.25 kg (9.37 lbs)

f. Condenser Pressure Transducer

Condenser Fan Starts

Condenser fan will start if condenser pres- sure is greater than 14.06kg/cm2 (200psig) OR the condenser fan is OFF for more than 60 seconds.

Condenser Fan Stops

Condenser fan will stop if condenser pres- sure is less than 9.14kg/cm2 (130psig) AND the condenser fan remains ON for at least 30 seconds.

g. Unit Weight Refer to unit model number plate.

h. Water Pressure Switch Cut-In 0.5 0.2 kg/cm2 (7 3 psig)

Cutout 1.6 0.4 kg/cm2 (22 5 psig)

i. Discharge Pressure Regulating Valve

Factory Setting 32.7 2.5kg/cm2 (72 5.5 psig)

a. Circuit Breaker

CB-1 Trips at 29 amps

CB-2 (50amp) Trips at 62.5 amps

CB-2 (70amp) Trips at 87.5 amps

b. Compressor Motor Full Load Amps (FLA) 17.6 amps @ 460VAC (with current limiting set at 21 amps)

T-319 216

c. Condenser Fan Motor

380 VAC, Single Phase, 50 Hz

460VAC, Single Phase, 60hz

Full Load Amps 1.3 amps 1.6 amps

Horsepower 0.43 hp 0.75 hp

Rotations Per Minute 1425 rpm 1725 rpm

Voltage and Frequency 360 — 460 VAC 2.5 hz 400 — 500 VAC 2.5 hz

Bearing Lubrication Factory lubricated, additional grease not required.

Rotation Counter-clockwise when viewed from shaft end.

Single-Phase Evaporator Fan Motors

d. Host Evaporator Fan Motor (s)

380 VAC/50 Hz 460 VAC/60 Hz

Full Load Amps High Speed 1.6 2.0

Full Load Amps Low Speed 0.8 1.0

Nominal Horsepower High Speed

0.70 0.84

Nominal Horsepower Low Speed

0.09 0.11

Rotations Per Minute High Speed

2850 rpm 3450 rpm

Rotations Per Minute Low Speed

1425 rpm 1750 rpm

Voltage and Frequency 360 — 460 VAC 1.25 hz 400 — 500 VAC 1.5 hz

Voltage and Frequency using power autotransformer

180 — 230 VAC 1.25 hz 200 — 250 VAC 1.5 hz

Bearing Lubrication Factory lubricated, additional grease not required

Rotation CW when viewed from shaft end

Three-Phase Evaporator Fan Motors

e. Host Evaporator Fan Motor (s)

380 VAC/3 PH/50 Hz 460 VAC/3 PH/60 Hz

Full Load Amps High Speed 1.0 1.2

Full Load Amps Low Speed 0.6 0.6

Nominal Horsepower High Speed

0.49 0.84

Nominal Horsepower Low Speed

0.06 0.11

Rotations Per Minute High Speed

2850 rpm 3450 rpm

Rotations Per Minute Low Speed

1425 rpm 1725 rpm

Voltage and Frequency 360 — 460 VAC 1.25 hz 400 — 500 VAC 1.5 hz

Bearing Lubrication Factory lubricated, additional grease not required

Rotation CW when viewed from shaft end

217 T-319

2.6 SAFETY AND PROTECTIVE DEVICES

Unit components are protected from damage by safety and protective devices listed in the following table. These devices monitor the unit operating conditions and open a set of electrical contacts when an unsafe condition occurs.

f. Remote Evaporator Fan Motor

Full Load Amps 1 amp

g. Evaporator Coil Heaters

Number of Heaters 6

Rating 750 watts +5/-10% each @ 230VAC

Resistance (cold) 66.8 to 77.2ohms @ 20C (68F)

Type Sheath

h. Fuses

Control Circuit 7.5 amps (F3A, F3B)

Controller/DataCORDER 5 amps (F1 & F2)

Emergency Defrost 5 amps (FED)

Drain Line Heater 5 amps (FDH)

Humidity Power Transformer

5 amps (FH)

i. Compressor Crankcase Heater 180 watts @ 460 VAC

j. Humidity Sensor

Orange wire Power

Red wire Output

Brown wire Ground

Input voltage 5 vdc

Output voltage 0 to 3.3 vdc

Output voltage readings vs relative humidity (RH) percentage:

30% 0.99 V

50% 1.65 V

70% 2.31 V

90% 2.97 V

k. Controller Setpoint Range -30 to +30C (-22 to +86F)

Table 21 Safety and Protective Devices

UNSAFE CONDITION SAFETY DEVICE DEVICE SETTING

Excessive current draw Fuse, Defrost Line Heater (FDLH) 5 amps

T-319 218

2.7 REFRIGERATION CIRCUIT

Starting at the compressor (see Figure 2.16), the suction gas is compressed to a higher pressure and temperature.

The gas flows through the discharge service valve into the pressure regulating valve. During periods of low ambi- ent operation, the discharge pressure regulating valve maintains the flow of refrigerant to a preset minimum dis- charge pressure. Refrigerant gas then moves into the air-cooled condenser. Air flowing across the coil fins and tubes cools the gas to saturation temperature. By removing latent heat, the gas condenses to a high pressure/high temperature liquid and flows to the receiver, which stores the additional charge necessary for low temperature operation.

The liquid refrigerant continues through the liquid line service valve, the filter-drier (which keeps refrigerant clean and dry), and a heat exchanger (that increases subcooling of the liquid) through the RLSV or HLSV to the thermo- static expansion valves (TXV). As the liquid refrigerant passes through the variable orifice of the expansion valve, some of it vaporizes into a gas (flash gas). Heat is absorbed from the return air by the balance of the liquid, causing it to vaporize in the evaporator coil(s). The vapor then flows through the suction modulating valves to the compres- sor.

The evaporators are equipped with liquid solenoid valves that open or close depending on the need for cooling in the remote or host compartments, as well as an externally equalized TXV.

The TXV is activated by the bulb strapped to the suction line near the evaporator outlet(s). The valve maintains a constant superheat at the coil outlet(s) regardless of load conditions.

During periods of low load, the suction modulating valve decreases flow of refrigerant to the compressor. This action balances the compressor capacity with the load and prevents operation with low coil temperatures. In this mode of operation, the quench valve will open as required to provide sufficient liquid refrigerant flow into the suc- tion line for cooling of the compressor motor. The quench valve senses the temperature of refrigerant entering the compressor and provides additional coolant to the compressor motor.

The refrigeration system is also fitted with a condenser pressure transducer, which feeds information to the control- ler. The controller programming will operate the condenser fan so as to attempt to maintain discharge pressures above 130 psig in low ambients. At ambients below 27 degrees C (80 degrees F), the condenser fan will cycle on and off, depending on condenser pressure and operating times:

1. The condenser fan will start if the condenser pressure is greater than 200 psig OR the condenser fan has been OFF for more than 60 seconds.

2. The condenser fan will stop if the condenser pressure is less than 130 psig AND the condenser fan has been running for at least 30 seconds.

At ambients above 27 degrees C (80 degrees F), condenser pressure control is disabled and the condenser fan runs continuously.

219 T-319

Figure 2.16 Refrigeration Circuit Schematic

Suction Liquid Discharge

HOST MODULATING VALVE

PRESSURE TRANSDUCER

HEAT EXCHANGER

SIGHT GLASS FILTER DRIER

RECEIVER

TXV

TXV BULB

SERVICE VALVE

REMOTE EVAPORATOR

CONDENSER

SERVICE VALVE

QUENCH VALVE

DISCHARGE PRESSURE REGULATING VALVE

TXV

HOST EVAPORATOR

RLSV

HLSVREMOTE MODULATING VALVE

31 T-319

SECTION 3

MICROPROCESSOR

3.1 TEMPERATURE CONTROL MICROPROCESSOR

The temperature control Micro-Link 3 microprocessor system consists of a keypad, display module, control module (controller), and interconnecting wiring. This section addresses functions specific to the dual temperature platform. For more detailed system information, refer to Section 3 of the Operations and Service manual for 69NT40-541- 300 to 349 series units.

3.1.1 Display Module

The display module (Figure 3.1) consists of two 5-digit displays and seven indicator lights. The indicator lights

include:

1. Cool — White LED: Energized when the refrigerant compressor is energized.

2. Heat — Orange LED: Energized to indicate heater operation in the heat or defrost mode.

3. Defrost — Orange LED: Energized when the unit is in the defrost mode.

NOTE The in-range light is not illuminated until both compartments are in range.

4. In-Range — Green LED: Energized when the controlled temperature probe is within specified tolerance of set point.

NOTE The host unit controlling probe in the perishable range will be the SUPPLY air probe and the con- trolling probe in the frozen range will be the RETURN air probe. The Supply/Return light always indi- cates the Host unit controlling probe.

5. Supply — Yellow LED: Energized when the supply air probe is used for control.When this LED is illuminated, the temperature displayed in the AIRTEMPERATURE display is the reading at the supply air probe. This LED will flash if dehumidification or humidification is enabled. The supply probe is used by the Remote com- partment to control the temperature.

6. Return — Yellow LED: Energized when the return air probe is used for control.When this LED is illuminated, the temperature displayed in the AIRTEMPERATURE display is the reading at the return air probe. This LED will flash if dehumidification or humidification is enabled.

7. Alarm — Red LED: Energized when there is an active or an inactive shutdown alarm in the alarm queue.

The two displays include SETPOINT/Code and AIR TEMPERATURE/Data sections. The temperature display will alternate between the Host and Remote evaporator compartment values. The Remote compartment values are distinguishable by the r in the lower left hand corner of the left display.

Figure 3.1 Display Module

COOL HEAT DEFROST IN RANGE ALARM SUPPLY RETURN

SETPOINT/Code AIR TEMPERATURE/Data

T-319 32

3.1.2 Keypad

The keypad (Figure 3.2) is mounted on the right-hand side of the control box. The keypad consists of 11 push but- ton switches that act as the users interface with the controller. Descriptions of the switch functions are provided in Table 31.

Figure 3.2 Keypad

Table 31 Keypad Function

KEY FUNCTION

Code Select Accesses function codes.

Pre-Trip Displays the pre-trip selection menu. Discontinues pre-trip in progress.

Alarm List Displays alarm list and clears the alarm queue.

Manual Defrost/ Interval

Displays selected defrost mode. Depressing and holding the Defrost interval key for five sec- onds will initiate defrost using the same logic as if the optional manual defrost switch was toggled on.

Enter Confirms a selection or saves a selection to the controller.

CODE SELECT

PRE TRIP

ALARM LIST

MANUAL DEFROST/ INTERVAL

ENTER

BATTERY POWER

ALT MODE

RETURN SUPPLY

C F

33 T-319

3.2 OPERATIONAL SOFTWARE

The host unit is operable in Frozen or Perishable modes, with a set point range of -22 to 86F (-30 to 30C). For detailed information on modes of operation for the host unit, refer to Section 3 of the Operations and Service man- ual for 69NT40-541-300 to 349 series units.

The remote evaporator unit is designed to operate in perishable mode only, with a set point range of 28 to 70F (-2 to 21C). The remote evaporator unit functions within Dual Temperature Mode, which is enabled via Code Select Code 52 (Cd52). If Cd52 is disabled (OFF), the menu options will not be available and remote evaporator fans will be disabled. When Code 52 is ON, press the ENTER key to scroll to the desired function code (refer to Table 32).

3.2.1 Enabling Dual Temperature Operation

Dual temperature operation is enabled via Function Code 52 (Cd52). All selectable parameters associated with the remote compartment are viewed and set through Cd52. If Cd52 is disabled (OFF), the menu options will not be available.

To enable dual temperature operation, perform the following steps:

1. Press the CODE SELECT key, then press an arrow key until the left window displays Cd52.

2. The right window will display the value of this item for five seconds before returning to the normal display mode.

3. If more time is needed, press the ENTER key to extend the time to 30 seconds.

Arrow Up Change or scroll a selection upward Pre-trip advance or test interruption.

Arrow Down Change or scroll a selection downward. Pre-trip repeat backward.

Return/Supply Displays non-controlling probe temperature (momentary display).

Degrees C/F Displays alternate English/Metric scale (momentary display). When set to degrees Fahren- heit, pressure is displayed in psig and vacuum in /hg. P appears after the value to indicate psig and i appears for inches of mercury. When set to degrees Celsius, pressure readings are in bars. b appears after the value to indicate bars.

Battery Power Initiate battery backup mode to allow set point and function code selection if AC power is not connected.

ALT. Mode This key is pressed to switch the functions from the temperature software to the DataCORD- ER Software. The remaining keys function the same as described above except the readings or changes are made to the DataCORDER programming.

Table 32 Dual Temp Display/Select Functions

CODE FUNCTION

SEtPt Remote supply set point

PSPLy Remote supply air temperature

SSPLy Remote secondary supply temperature

rEtUR Remote return air temperature

dtS Remote defrost temperature sensor

rESV Remote SMV position

dFrST Remote defrost interval

rEnbl Remote enable temperature

rt Remote minimum temperature delta

Table 31 Keypad Function

KEY FUNCTION

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3.2.2 Remote Compartment Set Point Change (SEtPt)

For independent readings of remote set point and supply or return air temperature, use the following steps:

1. Ensure Cd52 is enabled and press the ENTER key.

2. The left display window will display SEtPt.

3. The right display window will display the present set point.

4. To change the set point, move arrow key up or down until the desired set point is displayed in the left win- dow. This value will keep flashing, and range from 28.0 to 70.0F (-2.2 to 21.1C) in 0.1 degree increments.

5. Press the ENTER key to initiate set point change. If ENTER is not selected, set point will not change.

3.2.3 Remote Compartment Sensor Data

To display sensor readings for the remote air supply air temperature, the remote secondary supply temperature, or the remote defrost temperature sensor, use the following steps:

1. From Cd52, press the ENTER key to scroll to the desired sensor.

2. The left display windows will display the desired sensor:

PSPLY — Remote Supply Air Temperature

SSPLY — Remote Secondary Supply Temperature

rErUR — Remote Return Air Temperature

dtS — Remote Defrost Temperature Sensor

3. The right display window will display the present sensor reading.

3.2.4 Remote Evaporator SMV Position

The unit is capable of maintaining supply air temperature to within 1.8 degrees F (1.0 degrees C) of set point. Supply air temperature is controlled by positioning of the suction modulation valve (SMV), cycling of the compres- sor, and cycling of the heaters. Use the following steps to display the remote evaporator RSMV position:

1. From Cd52, press the ENTER key to scroll to the desired sensor.

2. The left display window will display rESV.

3. The right display window displays the remote evaporator SMV position in 0 — 100 in 1% increments.

3.2.5 Remote Evaporator Defrost Interval

Both compartments will defrost simultaneously if initiated manually by pressing the Manual Defrost interval key for 5 seconds. Both compartments will defrost automatically and independently at the user selected time interval. Defrost can only occur when DTS is below a set value, indicating that box temperatures are low enough to allow frost on the evaporator coil. Termination will occur when DTS reaches a set value. If DTS does not reach this value within 2 hours, the controller will terminate the defrost cycle and an alarm will be activated, indicating that defrost terminated abnormally.

There are two modes for initiating defrost on the dual temperature platform — either user-selected timed intervals or manual defrost control. The user-selected values are 3, 6, 9, 12, or 24 hours. The factory default for the timed inter- val is 12 hours (some units may be configured to allow defrost to be disabled altogether; in this case, a user- selected value of OFF will be available).

All defrost interval times reflect the number of compressor runtime hours since the last defrost de-ice cycle. The minimum defrost interval under the automatic setting is three hours while the maximum is 24. In frozen mode, the amount of wall-clock time necessary to accumulate a given amount of defrost interval time will exceed the defrost interval time by a factor of two to three depending on the compressor duty-cycle. Defrost interval time is not accu- mulated in any mode until the defrost termination sensor reads less than the preset value.

To change the remote evaporator defrost interval, use the following steps:

1. From Cd52, press the ENTER key until the left window displays dFrSt.

35 T-319

2. The right display window will display the current defrost interval — either 3, 6, 9, 12, or 24 hours.

3. To change defrost interval, use the arrow keys to toggle to the new interval and press the ENTER key. If the ENTER key is not pressed, the interval will not be changed.

4. After a new defrost interval is selected, the newly selected value will be used immediately.

3.2.6 Remote Enable Temperature

Remote enable temperature is a user selectable parameter that sets the temperature the host unit needs to reach prior to enabling full remote cooling capacity.

This function is only applicable with host frozen set point (below 14 degrees F). If attempt to access this function is made in host perishable mode, the display will show ——. Remote enable must be set below the hosts set point.

To set remote enable temperature, use the following steps:

1. From Cd52, press the ENTER key to scroll to the desired sensor.

2. The left display window displays rEnbL.

3. The right display window displays the current remote enable temperature.

4. Remote enable is user selectable in 0.1 degree increments from -13.0 to 24.8 degrees F. The default value is 14.0 degrees F.

3.2.7 Remote Minimum Temperature Delta

The remote minimum temperature delta is a user-selectable parameter and is only applicable in the host frozen pull-down mode. This value reflects the difference between the remote evaporator return and supply air tempera- tures. This parameter can only be set if the host has a frozen set point, and the host return temperature is above the remote enable temperature.

The remote temperature delta temperature prioritizes capacity between the two compartments during frozen pull- down. For example, a low remote temperature delta setting (i.e. 0.9 degrees F) will give the majority of cooling to the host unit. A high remote temperature delta setting (i.e. 14.4 degrees F) will send the majority of the cooling to the remote unit causing the host unit to take longer to read its remote enable temperature.

To set the remote minimum temperature delta, use the following steps:

1. From Cd52, press the ENTER key to scroll to the desired sensor.

2. The left display window displays rt.

3. The right display window displays the current remote minimum temperature delta.

4. Remote minimum temperature delta ranges from -0.9 degrees F to 14.4 degrees F. The default value is 3.6 degrees F.

3.3 REMOTE COMPARTMENT ALARMS

Alarm display is an independent controller software function. If an operating parameter is outside of expected range or a component does not return the correct signals back to the controller, an alarm is generated.

A fault in the remote compartment refrigeration system will trigger an AL 04 alarm. The display window will display AL 04, alternate with the set point. This is a general fault alarm.

The AL 04 will light the alarm light, which will stay lit until the fault is corrected. Specific fault alarms for the remote evaporator are stored in the remote alarm list (rAL) and are accessible through ALT MODE (see Table 33).

NOTE The rAL alarm codes correspond to the host alarm numbers. For example, the rAL22 (remote evapo- rator motor IP) corresponds to the AL22 (host evaporator motor IP).

The alarm philosophy balances the protection of the refrigeration unit and that of the refrigerated cargo. The action taken when an error is detected always considers the survival of the cargo. Rechecks are made to confirm that an error actually exists.

T-319 36

Some alarms requiring compressor shutdown have time delays before and after to try to keep the compressor on line. An example is alarm code LO, (low main voltage). When a voltage drop of over 25% occurs, an indication is given on the display, but the unit will continue to run.

An alarm is indicated by flashing an alarm code on the display panel, and for some alarms, by the alarm light illumi- nating.

When an Alarm Occurs:

1. The red alarm light will illuminate for AL04.

2. If a detectable problem is found to exist, its alarm code will be alternately displayed with the set point on the left display.

3. The user should scroll through the alarm list to determine what alarms exist or have existed. Alarms must be diagnosed and corrected before the Alarm List can be cleared.

To Display Alarm Codes:

1. Press the ALT. MODE key once, and using Arrow keys, scroll though the DataCORDER menu until rAL is displayed in the left display window.

2. Press Enter. The rAL will display the individual component alarm that triggered the AL04.

Alarm codes specific to the dual temperature system are located in Table 33. Pre-trip tests and test codes for the general unit are provided in the Operation and Service Manual for 69NT40-541-300 to 399 series units.

3.4 UNIT PRE-TRIP DIAGNOSTICS

Pre-Trip diagnostics is an independent controller function that will suspend normal refrigeration controller activities and provide preprogrammed test routines. The test routines include auto mode testing, which automatically pre- forms a pre-programmed sequenced of tests or manual mode testing, which allows the operator to select and run any of the individual tests.

CAUTION! Pre-Trip inspection should not be performed with critical temperature cargoes in the container.

CAUTION! When the Pre-Trip key is pressed, dehumidification and bulb mode will be deactivated. At the completion of Pre-Trip activity, dehumidification and bulb mode must be reactivated.

NOTE It is recommended for the container to be partitioned during pre-trip diagnostics.

Testing may be initiated using either the keypad or via communication. When testing is initiated by communication, the controller will execute the entire battery of tests (auto mode). Pre-trips perform diagnostic checks on main com- ponents of the remote compartment when Code 52 is active.

At the end of a pre-trip test, the message P, rSLts (pretest results) will be displayed. Press the ENTER key to see the results for all sub-tests. The results will be displayed as either PASS or FAIL for all the tests run to completion.

Pre-trip tests and test codes specific to the dual temperature system are located in Table 34. Pre-trip tests and test codes for the general unit are provided in the Operation and Service Manual for 69NT40-541-300 to 399 series units.

37 T-319

Table 33 Remote Controller Alarm Indications

CODE TITLE DESCRIPTION

rAL15 Remote Evaporator Loss of Cool

Alarm 15 is triggered when the RESMV is greater than 20% for a period of 4 minutes, the RLSV is open, and the compressor has run check for a temperature delta of 1 degree C across the remote coil. If there is not a 1 degree C difference in temperature across the coil, the HLSV will close for a period of 1 minute and again check for a temperature delta of 1 degree C across the remote coil. If there is not 1 degree C change in temperature across the coil, the alarm will be triggered.

rAL22 Remote Evaporator Fan Motor Safety

Alarm 22 responds to the remote evaporator motor internal protectors. The alarm is triggered by opening of either internal protector. It will disable all control outputs until the motor protector resets.

rAL26 All Remote Supply and Return Temperature Sensors Failure

Alarm 26 is triggered if the controller determines that all of the remote con- trol probe sensors are out-of-range. This can occur for box temperatures outside the range of -58F to +158F.

rAL52 Remote Alarm List Full

Alarm 52 is activated whenever the remote alarm list is determined to be full; at start-up or after recording an alarm in the list. Alarm 52 is displayed, but is not recorded in the alarm list. This alarm can be reset by clearing the alarm list. This can be done only if all alarms written in the list are inactive.

rAL54 Remote Primary Supply Temperature Sensor Failure (STS)

Alarm 54 is activated by an invalid remote primary supply temperature sensor reading that is sensed outside the range of -58F to +158 F or if the probe check logic has determined there is a fault with this sensor. If Alarm 54 is activated and the remote primary supply is the control sensor, the remote secondary supply sensor will be used for control if the unit is so equipped. If the remote unit does not have a secondary supply tem- perature sensor, and AL54 is activated, the remote primary return sensor reading, -2C will be used for control.

rAL56 Remote Primary Return Temperature Sensor Failure (RTS)

Alarm 56 is activated by an invalid remote primary return temperature sen- sor reading that is outside the range of -58F to +158F. If Alarm 56 is ac- tivated and the remote primary return is the control sensor, the remote secondary return sensor will be used for control. If return sensors fail, the remote primary supply sensor will be used for control.

rAL59 Remote Heat Termination Thermostat

Alarm 59 is triggered by the opening of the remote heat termination ther- mostat (RHTT) and will result in the disabling of the heater. This alarm will remain active until the thermostat resets.

rAL60 Remote Defrost Temperature Sensor Failure

Alarm 60 is an indication of a probable failure of the remote defrost tem- perature sensor. It is triggered by the opening of the remote heat termina- tion thermostat (RHTT) or the failure of the RDTS to go above set point within two hours of defrost initiation. After one-half hour with a frozen range set point, or one-half hour of continuous compressor run time, if the return air falls below 7C (45F), the Controller checks to ensure the DTS reading has dropped to 10 C or below. If not, a DTS failure alarm is given and the defrost mode is operated using the return temperature sensor. The defrost mode will be terminated after one hour by the Controller.

rAL61 Remote Heaters Failure Alarm 61 is triggered by detection of improper amperage resulting from re- mote heater activation or deactivation. Each phase of the power source is checked for proper amperage.This alarm is a display alarm with no result- ing failure action, and will be reset by a proper amp draw of the heater.

rAL70 Remote Secondary Supply Sensor Failure

Alarm 70 is activated by an invalid remote secondary supply sensor reading outside the range of -58F to +158F. The alarm is reset when the remote secondary supply sensor has a reading that is within the proper range.

T-319 38

Table 34 Remote Controller Pre-Trip Test Codes

CODE TITLE DESCRIPTION

NOTE The following pre-trip codes perform diagnostic checks on main components of the remote evaporator component when Code 52 (Cd52) is active. The system must be configured for a Dual Temperature Unit for pre-trip codes to be activated.

P4-2 Remote Evaporator Fans On Test

Setup: Evaporator fans start in the OFF condition, current draw is measured, then evaporator fans will be turned on. After 60 seconds, the current draw is measured again. The change in current draw is then recorded.

Pass/Fail Criteria: Passes if change in current draw is in specified range.

P4-3 Remote Evaporator Fans Off Test

Setup: Evaporator fans are turned off. After 10 seconds, the current draw is measured. The change in current draw is then recorded.

Pass/Fail Criteria: Passes if change in current draw is in specified range.

P5-6 Remote Evaporator Fan Direction Test

Setup: With evaporator fan running on high speed, turn the heaters on for 30 seconds, then measure the temperature difference between the primary supply and primary return probes.

Pass/Fail Criteria: Passes if primary supply temperature is 1.0 degrees higher than primary return temperature. Test P5-0 must pass before this test is run.

P6-8 Host Liquid Solenoid Valve (HLSV) Test

Setup: The system is allowed to run (remote evaporator, condenser and compressor) for 1 minute with the SMV at 100% and HLSV open. A current draw test is performed and the values are saved. The HLSV is then closed, and a 15 second delay follows. A current draw test is again performed and the values are compared to the original saved values.

Condenser Pressure Control logic should be used for this test if the control- ler is configured for it. The quench valve, if configured, will operate accord- ing to normal operating rules.

Pass/Fail Criteria: Passes if current draw drops below acceptable value.

P6-9 Remote Liquid Solenoid Valve

(RLSV) Test

Setup: Once the HLSV pre-trip has completed, open the RLSV and allow the remote unit to run (remote evaporator, condenser and compressor) for 1 minute with the SMV at 100% and HLSV and host evaporator fans off. A current draw test is performed and the values are saved. The RLSV is then closed, and a 15 second delay follows. A current draw test is again per- formed and the values are compared to the original saved values.

Condenser Pressure Control logic should be used for this test if the control- ler is configured for it. The quench valve, if configured, will operate accord- ing to normal operating rules.

Pass/Fail Criteria: Passes if current draw drops below acceptable value.

P6-10 Remote Suction Modulation Valve

(RESMV) Close Test

Setup: Once the RLSV pre-trip has completed, open the RLSV and allow the remote unit to run (remote evaporator, condenser and compressor) for 1 minute with the SMV at 100% and HLSV and host evaporator fans off. A current draw test is performed and the values are saved. The RRESMV is then closed to 1% and a 30 second delay follows. A current draw test is again performed and the values are compared to the original saved values.

Condenser Pressure Control logic should be used for this test if the control- ler is configured for it. The quench valve, if configured, will operate accord- ing to normal operating rules.

Pass/Fail Criteria: Passes if current draw drops below acceptable value.

41 T-319

SECTION 4

OPERATION

4.1 INSPECTION (BEFORE STARTING)

WARNING! Beware of unannounced starting of the evaporator and condenser fans. The unit may cycle the fans and compressor unexpectedly as control requirements dictate.

If container is empty, check inside for the following:

1. Check channels or T bar floor for cleanliness. Channels must be free of debris for proper air circulation.

2. Check container panels, insulation and door seals for damage. Make permanent or temporary repairs.

3. Visually check evaporator fan motor mounting bolts for proper securement.

4. Check for dirt or grease on evaporator fan or fan deck and clean if necessary.

5. Check evaporator coil for cleanliness or obstructions. Wash with fresh water.

6. Check defrost drain pans and drain lines for obstructions and clear if necessary. Wash with fresh water.

7. Check panels on refrigeration unit for loose bolts and condition of panels. Make sure T.I.R. devices are in place on access panels.

8. Check condenser coil for cleanliness. Wash with fresh water.

9. Open control box door. Check for loose electrical connections or hardware.

10. Check color of moisture-liquid indicator.

11. Check oil level in compressor sight glass.

NOTE Proper maintenance of the bulkhead is important to prevent airflow between the front and rear com- partments.

Two critical items must be completed on every pre-trip:

1. Inspect the bulkhead for damage or a breakdown in its ability to seal against the container walls, ceiling and floor.

2. Carefully install foam blocks in the T-bar floor during loading so that they line up with the bulkhead. When installing foam blocks, ensure that there are no spots of open airflow between compartments.

4.2 CONNECT POWER

WARNING! Do not attempt to remove power plug(s) before turning OFF START/STOP Switch (ST), unit cir- cuit breaker(s) and external power source.

WARNING! Make sure the power plugs are clean and dry before connecting to any power receptacle.

T-319 42

4.3 STARTING AND STOPPING INSTRUCTIONS

WARNING! Make sure that the unit circuit breaker(s) (CB-1 & CB-2) and the START-STOP switch (ST) are in the O (OFF) position before connecting to any electrical power source.

4.3.1 Starting the Unit

1. With power properly applied, the fresh air damper set and (if required) the water-cooled condenser con- nected, place the START-STOP switch to I (ON).

2. Continue with Start Up Inspection, Section 4.4.

4.3.2 Stopping the Unit

1. To stop the unit, place the START-STOP switch in position 0 (OFF).

4.4 START-UP INSPECTION

4.4.1 Physical Inspection

1. Check rotation of condenser and evaporator fans.

2. Check compressor oil level (Refer to paragraph 6.8.6 in the Operation and Service Manual for 69NT40-541- 300 to 349 series units).

4.4.2 Check Controller Function Codes

Check and, if required, reset controller Function Codes (Cd27 through Cd39, and Cd 52) in accordance with desired operating parameters. Refer to Section 3.2.

4.4.3 Complete Inspection

Allow unit to run for five minutes to stabilize conditions and perform a pre-trip diagnosis in accordance with the fol- lowing paragraph.

4.5 PRE-TRIP DIAGNOSIS

CAUTION! Pre-trip inspection should not be performed with critical temperature cargoes in the container.

CAUTION! When Pre-Trip key is pressed, dehumidification and bulb mode will be deactivated. At the com- pletion of Pre-Trip activity, dehumidification and bulb mode must be reactivated.

NOTE It is recommended for the container to be partitioned during pre-trip diagnostics.

Pre-Trip diagnosis provides automatic testing of the unit components using internal measurements and compari- son logic. The program will provide a PASS or FAIL display to indicate test results.

The testing begins with access to a pre-trip selection menu. The user may have the option of selecting one of three automatic tests (depending on software revision installed). These tests will automatically perform a series of indi- vidual pre-trip tests. The user may also scroll down to select any of the individual tests. The contents of the menus are as follows:

43 T-319

A detailed description of the pre-trip test codes for the dual temperature operation is listed in Table 34. If no selec- tion is made, the pre-trip menu selection process will terminate automatically. However, dehumidification and bulb- mode must be reactivated manually if required.

Scrolling down to the rSLts code and pressing ENTER will allow the user to scroll through the results of the last pre-trip testing run. If no pre-testing has been run (or an individual test has not been run) since the unit was pow- ered up ——— will be displayed.

Before Starting a Pre-Trip Test:

Prior to starting tests, verify that unit voltage (Function Code Cd 07) is within tolerance and unit amperage draw (Function Codes Cd04, Cd05, Cd06) is within expected limits. Otherwise, tests may fail incorrectly.

All alarms must be rectified and cleared before starting tests.

Starting a Pre-Trip Test:

NOTE Pre-trip diagnosis may also be initiated via communications. The operation is the same as for the key pad initiation described below except that should a test fail, the pre-trip mode will automatically termi- nate. When initiated via communications, a test may not be interrupted with an arrow key, but the pre- trip mode can be terminated with the PRE-TRIP key.

1. Press the PRE-TRIP key. This accesses a test selection menu.

a. TO RUN AN AUTOMATIC TEST: Scroll through the selections by pressing the UP ARROW or DOWN ARROW keys to display AUTO, AUTO 2 or AUTO 3 as desired and then press the ENTER key.

The unit will execute the series of tests without any need for direct user interface. These tests vary in length, depending on the component under test.

While tests are running, P#-# will appear on the left display, where the #s indicate the test number and sub-test. The right display will show a countdown time in minutes and seconds, indicating how much time there is left remaining in the test.

CAUTION! When a failure occurs during automatic testing the unit will suspend operation awaiting opera- tor intervention.

When an automatic test fails, it will be repeated once. A repeated test failure will cause FAIL to be shown on the right display, with the corresponding test number to the left. The user may then press the DOWN ARROW to repeat the test, the UP ARROW to skip to the next test or the PRE-TRIP key to terminate testing. The unit will wait indefinitely, until the user manually enters a command.

CAUTION! When Pre-Trip test Auto 2 runs to completion without being interrupted, the unit will terminate pre-trip and display Auto 2 end. The unit will suspend operation until the user depresses the ENTER key!

When an Auto test runs to completion without a failure, the unit will exit the pre-trip mode, and return to normal control operation. If configuration variable CnF42 is set to IN, a Data- CORDER trip start will be entered. If CnF42 is set to OUT, the trip start will not be entered. However, dehumidification and bulb mode must be reactivated manually if required.

Table 41 Pre-Trip Selection Menu

Auto or Auto 1 Auto 2 Auto 3

P, P1, P2, P3, P4, P5, P6, rSLts P, P1, P2, P3, P4, P5, P6, P7, P8, P9, P10, rSLts

P, P1, P2, P3, P4, P5, P6, P7, P8, rSLts

T-319 44

b. TO RUN AN INDIVIDUAL TEST: Scroll through the selections by pressing the UP ARROW or DOWN ARROW keys to display an individual test code. Pressing ENTER when the desired test code is displayed.

Individually selected tests, other than the LED/Display test, will perform the operations necessary to ver- ify the operation of the component. At the conclusion, PASS or FAIL will be displayed. This message will remain displayed for up to three minutes, during which time a user may select another test. If the three minute time period expires, the unit will terminate pre-trip and return to control mode operation.

While the tests are being executed, the user may terminate the pre-trip diagnostics by pressing and hold- ing the PRE-TRIP key.Theunit will then resume normal operation. If the user decides to terminate a test but remain at the test selection menu, the user may press the UP ARROWkey.When this is done all test outputs will be de-energized and the test selection menu will be displayed.

Throughout the duration of any pre-trip test except the P-7 high pressure switch tests, the current and pressure limiting processes are active.

2. At the end of the pre-trip test selection menu, the message P, rSLts (pre-trip results) will be displayed. Pressing the ENTER key will allow the user to see the results for all subtests (i.e., 1-0, 1-1, etc). The results will be displayed as PASS or FAIL for all the tests run to completion since power up. If a test has not been run since power up, — — — — — will be displayed.

3. Once all pre-test activity is completed, dehumidification and bulb mode must be reactivated manually if required.

4.6 DEFROST OPERATION

4.6.1 Dual Temperature Remote Defrost

The remote evaporator fans will shut off in defrost and timed defrost is independent of the host unit. When a man- ual defrost is initiated in the host unit, it will also defrost the remote. Remote defrost will be terminated on remote DTS temperature. The remote high temperature thermostat (RHTT) is wired in series with the heater contactor for safety.

51 T-319

SECTION 5

TROUBLESHOOTING

NOTE This section contains information specific to the dual temperature system. For additional troubleshoot- ing information, refer to Section 5 of the Operation and Service Manual for 69NT40-541-300 to 399 series units.

CONDITION POSSIBLE CAUSE REMEDY

5.1 REMOTE EVAPORATOR NOT RUNNING

Remote evaporator does not run Host unit has not reached set point. Wait for host unit to reach set point

All remote temperature sensors have failed. Check/Replace

5.2 REMOTE EVAPORATOR RUNS BUT HAS INSUFFICIENT COOLING

Remote evaporator provides air circulation only

Code Select Cd52 is disabled. Enable

Remote Liquid Line Solenoid Valve (RLSV) in- operative.

Check/Replace

5.3 REMOTE SUPPLY SENSOR MALFUNCTION

Remote Secondary Supply Sensor (SSP- Ly) is controlling the Remote evaporator

Remote Primary Supply Sensor (PSPLy) has failed.

Check/Replace

Remote Primary Return Sensor (rEtUR) minus 3.5 degrees F is controlling the re- mote evaporator

Both the Remote Secondary Supply Sensor (SSPLy) and the Remote Primary Supply Sensor (PSPLy) have failed.

Check/Replace

5.4 HOST UNIT TRIGGERS A SHUTDOWN ALARM

Shutdown alarm is triggered in the Host unit

If the cooling components needed to operate the remote evaporator are available, the unit will still operate.

None

61 T-319

SECTION 6

DUAL TEMPERATURE SERVICE

NOTE To avoid damage to the earths ozone layer, use a refrigerant recovery system whenever removing refrigerant. When working with refrigerants, you must comply with all local government environmental laws. In the United States, refer to EPA section 608.

NOTE This section addresses functions specific to the dual temperature platform. For more detailed system information, refer to Section 6 of the T-318 Operations and Service manual.

6.1 SECTION LAYOUT

Service procedures are provided herein beginning with refrigeration system service, then refrigeration system com- ponent service, electrical system service, temperature recorder service, and general service. Refer to the Table Of Contents to locate specific topics.

6.2 SERVICE VALVES

The compressor suction, compressor discharge, and liquid line service valves (see Figure 6.1) are provided with a double seat and a gauge connection, which enable servicing of the compressor and refrigerant lines. Turning the valve stem clockwise (all the way forward) will frontseat the valve to close off the suction, discharge or liquid line and open the gauge port to the compressor or low side. Turning the stem counterclockwise (all the way out) will backseat the valve to open the connections and close off the port.

With the valve stem midway between frontseat and backseat, the lines are open to both the connections and the gauge connection.

For example, the valve stem is first fully backseated when connecting a manifold gauge to measure pressure. Then, the valve is opened 1/4 to 1/2 turn to measure the pressure.

Figure 6.1 Service Valve

1. Suction, Discharge or Liquid Line Connection 2. Service Port 3. Stem Cap

4. Valve stem 5. Compressor Or Filter Drier Inlet Connection

— — — — —

6.3 MANIFOLD GAUGE SET

The manifold gauge set (see Figure 6.2) is used to determine system operating pressure, add refrigerant charge, and to equalize or evacuate the system.

VALVE FRONTSEATED (Clockwise)

VALVE BACKSEATED (Counterclockwise)

1

2 3

4 5

T-319 62

Figure 6.2 Manifold Gauge Set

A. Connection to Low Side of System

B. Connection to either: Refrigerant Cylinder or Oil Container

C. Connection to High Side of System

When the suction pressure hand valve is frontseated (turned all the way in), the suction (low) pressure can be checked. When the discharge pressure hand valve is frontseated, the discharge (high) pressure can be checked. When both valves are open (turned counter-clockwise all the way out), high pressure vapor will flow into the low side. When the suction pressure valve is open and the discharge pressure valve shut, the system can be charged. Oil can also be added to the system.

A R-134a manifold gauge/hose set with self-sealing hoses (see Figure 6.3) is required for service of the model covered within this manual. The manifold gauge/hose set is available from Carrier Transicold. (Carrier Transicold P/N 07-00294-00, which includes items 1 through 6, Figure 6.3). To perform service using the manifold gauge/ hose set, do the following:

a. Preparing Manifold Gauge/Hose Set For Use

If the manifold gauge/hose set is new or was exposed to the atmosphere, it will need to be evacuated to remove contaminants and air as follows:

1. Back seat (turn counterclockwise) both field service couplings (see Figure 6.3) and midseat both hand valves.

2. Connect the yellow hose to a vacuum pump and refrigerant 134a cylinder.

3. Evacuate to 10 inches of vacuum and then charge with R-134a to a slightly positive pressure of 0.1 kg/cm2

(1.0 psig).

4. Front seat both manifold gauge set valves and disconnect from cylinder. The gauge set is now ready for use.

OPENED (Backseated ) HAND VALVE

CLOSED (Frontseated) HAND VALVE

SUCTION PRESSURE GAUGE

DISCHARGE PRESSURE GAUGE

A B C

63 T-319

Figure 6.3 R-134a Manifold Gauge/Hose Set

1. Manifold Gauge Set 2. Hose Fitting (0.5-16 Acme) 3. Refrigeration and/or Evacuation Hose

(SAE J2196/R-134a)

4. Hose Fitting w/O-ring (M14 x 1.5) 5. High Side Field Service Coupling 6. Low Side Field Service Coupling

— — — — —

b. Connecting Manifold Gauge/Hose Set

Connection of the manifold gauge/hose set (see Figure 6.4) is dependent on the component being serviced. If only the compressor is being serviced, the high side coupling is connected to the discharge service valve. For service of the low side (after pump down), the high side coupling is connected to the liquid line service valve. The center hose connection is brought to the tool being used. To connect the manifold gauge/hose set, do the following:

1. Remove service valve stem caps and check to make sure they are backseated. Remove service port caps (See Figure 6.1).

2. Connect the high side field service coupling (see Figure 6.3) to the discharge or liquid line valve service valve port.

3. Turn the high side field service coupling knob (red) clockwise, which will open the high side of the system to the gauge set.

4. Connect the low side field service coupling to the suction service valve port.

5. Turn the low side field service coupling knob (blue) clockwise, which will open the low side of the system to the gauge set.

6. To read system pressures, slightly midseat the high side and suction service valves.

To Low Side Service Port

To High Side Service Port

1

2

2 3 — Yellow

3 — Red

3 Blue

4

5 Red Knob

6 Blue Knob

4

T-319 64

Figure 6.4 Refrigeration System Service Connections

1. Discharge Service Valve 2. Compressor 3. Suction Service Valve 4. Receiver or Water Cooled Condenser 5. Liquid Service Valve 6. Vacuum Pump 7. Low Side Hose

8. Center Hose 9. High Side Hose 10. Electronic Vacuum Gauge 11. Manifold Gauge Set 12. Refrigerant Cylinder 13. Reclaimer

— — — — —

CAUTION! To prevent trapping liquid refrigerant in the manifold gauge set, be sure set is brought to suc- tion pressure before disconnecting.

c. Removing the Manifold Gauge Set

1. While the compressor is still ON, backseat the high side service valve.

2. Midseat both hand valves on the manifold gauge set and allow the pressure in the manifold gauge set to be drawn down to suction pressure. This returns any liquid that may be in the high side hose to the system.

3. Backseat the suction service valve. Backseat both field service couplings and frontseat both manifold set valves. Remove the couplings from the service ports.

4. Install both service valve stem caps and service port caps (finger-tight only).

6.4 PUMPING DOWN THE UNIT

To service the filter-drier, liquid line solenoid valves, expansion valves, suction modulation valves, quench valve, or evaporator coils, pump the refrigerant into the high side as follows:

1. Attach manifold gauge set to compressor service valves (refer to Section 6.3).

2. Start the unit and run both compartments in perishable cooling mode for 10 to 15 minutes. Set both the Host and Remote evaporator set points to temperatures lower than the ambient/box temperature while the con- tainer door and remote compartment partition are open.

DS

1

2 3 4

5

6

7-BLUE

8-YELLOW

9-RED

10

11

12

13

65 T-319

3. Frontseat the liquid line service valve. Check both host (Cd1) and remote (Cd52) SMV openings. Ensure that the SMVs are not throttling. If necessary, lower set point(s) slightly to increase SMV percentage opening.

4. Place Stop/Start switch in the Off position when the suction pressure reaches a positive pressure of 0.1 kg/ cm2 (1.0 psig).

5. Frontseat the suction service valve. The refrigerant will be trapped between the compressor suction service valve and the liquid line valve.

6. When opening up the refrigerant system, certain parts may frost. Allow the part to warm to ambient tempera- ture before dismantling. This avoids internal condensation, which puts moisture in the system.

7. After repairs have been made, be sure to perform a refrigerant leak check (refer to Section 6.5), and evac- uate and dehydrate the low side (refer to Section 6.6).

8. Check refrigerant charge and re-charge as required (refer to Section 6.7).

6.5 REFRIGERANT LEAK CHECKING

WARNING! Never use air for leak testing. It has been determined that pressurized, air-rich mixtures of refrigerants and air can undergo combustion when exposed to an ignition source.

The recommended procedure for finding leaks in a system is with a R-134a electronic leak detector. Testing joints with soapsuds is satisfactory only for locating large leaks.

1. If the system is without refrigerant, charge the system with refrigerant 134a to build up pressure between 2.1 to 3.5 kg/cm2 (30 to 50 psig). Remove refrigerant cylinder and leak-check all connections.

NOTE Only refrigerant 134a should be used to pressurize the system. Any other gas or vapor will contami- nate the system, which will require additional purging and evacuation of the system.

2. If required, remove refrigerant using a refrigerant recovery system and repair any leaks.

3. Evacuate and dehydrate the unit (refer to Section 6.6).

4. Charge unit per Section 6.7.

6.6 EVACUATION AND DEHYDRATION

6.6.1 General

Moisture is the deadly enemy of refrigeration systems. The presence of moisture in a refrigeration system can have many undesirable effects. The most common are copper plating, acid sludge formation, freezing-up of metering devices by free water, and formation of acids, resulting in metal corrosion.

6.6.2 Preparation

1. Evacuate and dehydrate only after pressure leak test (refer to Section 6.5).

2. Essential tools to properly evacuate and dehydrate any system include a vacuum pump (8 m3/hr = 5 cfm volume displacement) and an electronic vacuum gauge. The pump is available from Carrier Transicold (P/N 07-00176-11).

3. If possible, keep the ambient temperature above 15.6 C (60 F) to speed evaporation of moisture. If the ambient temperature is lower than 15.6 C (60 F), ice might form before moisture removal is complete. Heat lamps or alternate sources of heat may be used to raise the system temperature.

4. Additional time may be saved during a complete system pump down by replacing the filter-drier with a sec- tion of copper tubing and the appropriate fittings. Installation of a new drier may be performed during the charging procedure.

T-319 66

NOTE 24 VAC of power must be provided from TRX1 of the control transformer to KB1 and KC3 to energize HLSV and RLSV respectively, using a jumper wire. HLSV and RLSV must be opened for full system evacuation.

6.6.3 Procedure — Complete System

1. Remove all refrigerant using a refrigerant recovery system.

2. The recommended method to evacuate and dehydrate the system is to connect three evacuation hoses (see Figure 6.5) to the vacuum pump and refrigeration unit. Be sure the service hoses are suited for evacu- ation purposes.

Figure 6.5 Compressor Service Connections

1. Reclaimer 2. Discharge Service Valve 3. Compressor 4. Suction Service Valve 5. Receiver or Water Cooled Condenser

6. Liquid Service Valve 7. Vacuum Pump 8. Electronic Vacuum Gauge 9. Manifold Gauge Set 10. Refrigerant Cylinder

— — — — —

3. Test the evacuation setup for leaks by backseating the unit service valves and drawing a deep vacuum with the vacuum pump and gauge valves open. Shut off the pump and check to see if the vacuum holds. Repair leaks if necessary.

4. Midseat the refrigerant system service valves.

5. Open the vacuum pump and electronic vacuum gauge valves, if they are not already open. Start the vacuum pump. Evacuate unit until the electronic vacuum gauge indicates 2000 microns. Close the electronic vac- uum gauge and vacuum pump valves. Shut off the vacuum pump. Wait a few minutes to be sure the vac- uum holds.

6. Break the vacuum with clean dry refrigerant 134a gas.Raise system pressure to approximately 0.2 kg/ cm2

(2 psig), monitoring it with the compound gauge.

7. Remove refrigerant using a refrigerant recovery system.

DS

1

2 3 4 5

6

7

8

9

10

67 T-319

8. Repeat steps 5. and 6. one time.

9. Remove the copper tubing and change the filter-drier. Evacuate unit to 500 microns. Close the electronic vacuum gauge and vacuum pump valves. Shut off the vacuum pump. Wait five minutes to see if vacuum holds. This procedure checks for residual moisture and/or leaks.

10. With a vacuum still in the unit, the refrigerant charge may be drawn into the system from a refrigerant con- tainer on weight scales. Continue to Section 6.7.

6.6.4 Procedure — Partial System

1. If the refrigerant charge has been removed from the compressor for service, evacuate only the compressor by connecting the evacuation set-up at the compressor service valves. Follow evacuation procedures of the preceding paragraph except leave compressor service valves frontseated until evacuation is completed.

2. If refrigerant charge has been removed from the low side only, evacuate the low side by connecting the evacuation set-up at the compressor suction service valve and liquid service valve except leave the service valves frontseated until evacuation is completed.

3. Once evacuation has been completed and the pump has been isolated, fully backseat the service valves to isolate the service connections and then continue with checking and, if required, adding refrigerant in accor- dance with normal procedures.

6.7 REFRIGERANT CHARGE

6.7.1 Checking the Refrigerant Charge

NOTE To avoid damage to the earths ozone layer, use a refrigerant recovery system whenever removing refrigerant. When working with refrigerants you must comply with all local government environmental laws. In the U.S., refer to EPA section 608.

1. Connect the gauge manifold to the compressor discharge and suction service valves.

2. Bring the container temperature to approximately 1.7C (35F) or -17.8C (0F). Set the host controller set point to -25C (-13F) to ensure that the suction modulation valve is at maximum allowed open position.

3. Partially block the condenser coil inlet air. Increase the area blocked until the compressor discharge pres- sure is raised to approximately 12 kg/cm2 (175 psig).

4. On units equipped with a receiver, the level should be between the glasses. If the refrigerant level is not cor- rect, continue with the following paragraphs to add or remove refrigerant as required.

6.7.2 Adding Refrigerant to System (Full Charge)

1. Evacuate unit and leave in deep vacuum (refer to Section 6.6).

2. Place cylinder of R-134a on scale and connect charging line from cylinder to liquid line valve. Purge charging line at liquid line valve and then note weight of cylinder and refrigerant.

3. Open liquid valve on cylinder. Open liquid line valve half-way and allow the liquid refrigerant to flow into the unit until the correct weight of refrigerant (refer to Section 2.4) has been added as indicated by scales.

NOTE It may be necessary to finish charging unit through suction service valve in gas form, due to pressure rise in high side of the system (refer to section Section 6.7.3).

4. Backseat manual liquid line valve (to close off gauge port). Close liquid valve on cylinder.

5. Start unit in cooling mode. Run approximately 10minutes and check the refrigerant charge.

6.7.3 Adding Refrigerant to System (Partial Charge)

1. Examine the unit refrigerant system for any evidence of leaks. Repair as necessary (refer to Section 6.5).

2. Maintain the conditions outlined in Section 6.7.1.

T-319 68

3. Fully backseat the suction service valve and remove the service port cap.

4. Connect charging line between suction service valve port and cylinder of refrigerant R-134a. Open VAPOR valve.

5. Partially frontseat (turn clockwise) the suction service valve and slowly add charge until the refrigerant appears at the proper level.

6.8 SERVICING SOLENOID VALVES

6.8.1 Host Solenoid Valves

a. Replacing the Coil

NOTE The coil may be replaced without removing the refrigerant.

1. Be sure electrical power is removed from the unit. Disconnect leads. Remove top screw and washer. Lift off coil. (See Figure 6.6).

2. Verify coil type, voltage and frequency of old and new coil. This information appears on the coil housing.

Figure 6.6 Host Solenoid Valve

b. Replacing Valve

1. To replace the unloader, economizer, liquid injection or expansion bypass valve, pump down the unit. Refer to Section 6.4. Evacuate if unit is not equipped with service valves. Refer to Section 6.6.4 to replace the oil return valve. Remove the refrigerant charge.

2. Be sure electrical power is removed from the unit. Disconnect leads. Remove top screw and washer. Lift off coil. (See Figure 6.6).

3. Unbraze valve from unit and braze new valve in place.

4. Install coil. Evacuate low side and place unit back in operation. Check charge.

6.8.2 Remote Solenoid Valves

CAUTION! Do not over tighten or damage the enclosing tube assembly. Torque to 200-inch pounds (2.3 Mkg). Also make sure all parts are placed on the enclosing tube in proper sequence to avoid premature coil burnout.

Slotted Screw

Washer

Coil

Enclosing Tube and Body

69 T-319

a. Replacing the Coil

NOTE The coil may be replaced without removing the refrigerant or pumping the unit down.

1. Unplug from wiring harness, remove coil retainer and coil assembly.

2. Verify coil type, voltage and frequency. This information appears on the coil housing.

3. Place new coil over enclosing tube, retainer and connect wiring.

6.8.3 Replacing Solenoid Valve Internal Parts

The remote liquid line solenoid valve (RLSV) may be serviced by pumping the unit down. (Refer to Section 6.4.)

1. Remove coil retainer and coil assembly from valve. Remove enclosing tube assembly and related items.

2. Check for foreign material in valve body.

3. Install new parts.

NOTE Solenoid valve repair kit (P/N 14-00150-51) contains both a black neoprene seal and a white teflon seal. Use the one that matches seal in existing valve. The valve with the teflon seal can be identified by two dimples in the housing. (See Figure 6.7)

Figure 6.7 Remote Solenoid Valve

4. Tighten enclosing tube assembly to a torque value of 200 inch pounds (2.3 Mkg) and leak check the valve. (Refer to Section 6.5)

5. Install coil assembly and retainer.

6. Start unit and check refrigerant charge per Section 6.7.1.

7. Check refrigeration cycles.

8. Run Pretrip. (Refer to Section 4.5).

Dimples

T-319 610

Figure 6.8 Remote Solenoid Valves — Internal Parts

Coil Assembly

Retainer

Enclosing Tube Assy

Plunger Assy Seal

Piston Assy Body

Bracket Adapter

71 T-319

SECTION 7

ELECTRICAL WIRING SCHEMATIC

7.1 INTRODUCTION

This section contains the electrical schematics and wiring diagrams for units with the dual temperature system. The diagrams are presented as follows:

For 69NT40-541-304:

Figure 7.1 provides the legend for use with all figures.

Figure 7.2 provides the schematic diagram for units equipped with the dual temperature system.

Figure 7.3 provides the wiring diagram (sheet 1) for units equipped with the dual temperature system.

Figure 7.4 provides the wiring diagram (sheet 2) for units equipped with the dual temperature system.

For 69NT40-541-345:

Figure 7.5 provides the legend for use with all figures.

Figure 7.6 provides the schematic diagram for units equipped with the dual temperature system.

Figure 7.7 provides the wiring diagram (sheet 1) for units equipped with the dual temperature system.

Figure 7.8 provides the wiring diagram (sheet 2) for units equipped with the dual temperature system.

T-319 72

Figure 7.1 Legend (69NT40-541-304)

SYMBOL DESCRIPTION (Schematic Location) AMBS AMBIENT SENSOR (D—23)

C CONTROLLER (K—23)

CB1 CIRCUIT BREAKER — 460 VOLT (D—1)

CF CONDENSER FAN CONTACTOR (M—11, P—5)

CI COMMUNICATIONS INTERFACE MODULE (A—3)

CH COMPRESSOR CONTRACTOR (M—8, P—1)

CM CONDENSER FAN MOTOR (F—11, G—11, T—5)

CP COMPRESSOR MOTOR (E—8, T—1)

CPT CONDENSER PRESSURE TRANSDUCER (H—22)

CPDS COMPRESSOR DISCHARGE SENSOR (B—22)

CPSS COMPRESSOR SUCTION SENSOR (E—22)

CR CHART RECORDER [TEMPERATURE RECORDER] (A—17)

CS CURRENT SENSOR (G—2)

DHBL DEFROST HEATER — BOTTOM LEFT (R—3)

DHBR DEFROST HEATER — BOTTOM RIGHT (T—3)

DHML DEFROST HEATER — MIDDLE LEFT (R—3)

DHMR DEFROST HEATER — MIDDLE RIGHT (T—3)

DHTL DEFROST HEATER — TOP LEFT (R—3)

DHTR DEFROST HEATER — TOP RIGHT (T—3)

DPT DISCHARGE PRESSURE TRANSDUCER (K—22)

DTS DEFROST TEMPERATURE SENSOR (D—22)

EF EVAPORATOR FAN CONTACTOR [HIGH SPEED] (K—13, L—12, P—12, P—14)

EM EVAPORATOR FAN MOTOR (E—12, G—12, T—13, T—15)

ES EVAPORATOR FAN CONTACTOR [LOW SPEED] (L—13, P—12, P—14)

F FUSE (C—7, D—6, D—7, E—6, E—19, F—19)

FDLH FUSE, DEFROST LINE HEATER (D—6)

FLA FULL LOAD AMPS

HC HIGH VOLTAGE CONNECTOR (P—6, P—9, R—6, R—9)

HLSV HOST LIQUID SOLENOID VALVE (J—15)

HPS HIGH PRESSURE SWITCH (G—9)

HR HEATER CONTACTOR (L—14, P—3)

HS HUMIDITY SENSOR (G—23)

HSMV HOST SUCTION MODULATION VALVE (R—17)

HTT HEAT TERMINATION THERMOSTAT (G—14)

ICF INTERROGATOR CONNECTOR FRONT (P—21)

IP INTERNAL PROTECTOR (E—8, E—12, F—11, G—9, G—12, J—9)

LC LOW VOLTAGE CONNECTOR (F—9, G—6, G—10, G—14, J—10, K—9, L—14, M—6)

PA PHASE REVERSAL CONTACTOR (L—1, L—6, L—7)

LEGEND

SYMBOL DESCRIPTION (Schematic Location) PB PHASE REVERSAL CONTACTOR (L—2, L—6, L—7)

RDH REMOTE DEFROST HEATER (T—6, T—7, T—8)

RDLH REMOTE DRAIN LINE HEATER (J—6, L—6)

RDTS REMOTE DEFROST TEMPERATURE SENSOR (R—24)

RE REMOTE EVAPORATOR FAN MOTOR (G—9, J—9, T—10, T—11)

RHTT REMOTE HEAT TERMINATION THERMOSTAT (F—14)

RLSV REMOTE LIQUID SOLENOID VALVE (J—14)

RPRS REMOTE PRIMARY RETURN TEMPERATURE SENSOR (H—24)

RPSS REMOTE PRIMARY SUPPLY TEMPERATURE SENSOR (K—23)

RRS RETURN RECORDER SENSOR (C—22)

RSMV REMOTE SUCTION MODULATION VALVE (B—24)

RSSS REMOTE SECONDARY SUPPLY TEMPERATURE SENSOR (J—23)

RTS RETURN TEMPERATURE SENSOR (C—22)

SPT SUCTION PRESSURE TRANSDUCER (J—22)

SRS SUPPLY RECORDER SENSOR (L—21)

SD STEPPER POWER PACK (D—23)

ST START — STOP SWITCH (E—4)

TC CONTROLLER RELAY — COOLING (K—8)

TCP CONTROLLER RELAY — PHASE REVERSAL (K—7)

TE CONTROLLER RELAY — HIGH SPEED EVAPORATOR FANS (K—12)

TH CONTROLLER RELAY — HEATING (K—14)

THL CONTROLLER RELAY — HOST LIQUID LINE VALVE (F—16)

TN CONTROLLER RELAY — CONDENSER FAN (K—11)

TP TEST POINT (F—11,J—8, J—11, J—12, J—14, N—17)

TR TRANSFORMER (G—3)

TRL CONTROLLER RELAY — REMOTE LIQUID LINE VALVE (F—15)

TV CONTROLLER RELAY — LOW SPEED EVAPORATOR FANS (K—13)

TVE CONTROLLER RELAY — REMOTE EVAPORATOR FANS (D—9)

TVH CONTROLLER RELAY — REMOTE DEFROST HEATING (E—10)

VE REMOTE EVAPORATOR FAN CONTACTOR (L—9, L—10)

VH REMOTE DEFROST HEATER CONTACTOR (F—6, L—10, P—6)

VPS VENT POSITIONING SENSOR (P—17)

WCR WETTING CURRENT RELAY (H—11)

WP WATER PRESSURE SWITCH (E—12)

73 T-319

Figure 7.2 Schematic (69NT40-541-304)

T-319 74

Figure 7.3 Unit Wiring Diagram — Sheet 1 (69NT40-541-304)

75 T-319

Figure 7.4 Unit Wiring Diagram — Sheet 2 (69NT40-541-304)

T-319 76

Figure 7.5 Legend (69NT40-541-345)

77 T-319

Figure 7.6 Schematic (69NT40-541-345)

T-319 78

Figure 7.7 Unit Wiring Diagram — Sheet 1 (69NT40-541-345)

79 T-319

Figure 7.8 Unit Wiring Diagram — Sheet 2 (69NT40-541-345)

81 T-319

SECTION 8

SERVICE PARTS

8.1 INTRODUCTION

All orders and inquiries for parts must include: Parts Identification Number (PID), Model Number, Unit Serial Num- ber, Part Number, description of part as shown on list, and quantity required. Address all correspondence for parts to the following address:

CARRIER TRANSICOLD DIVISION

Replacement Components Group, TR-20

P.O. Box 4805, Syracuse, New York 13221

or FAX to: (315) 432-3778

The following letter designations are used to classify parts throughout this list:

A/R = As Required

N/A = Not Available

NS = Not Shown in illustration

NSS = Not Sold Separately — order next higher assembly or kit

PID = Parts Identification Number — essential to identify unit configuration.

PL = Purchase Locally

SST = Stainless Steel — 300 Series unless otherwise specified.

SV = Suffix SV — added to part number designates service replacement part.

T-319 91

9 REFRIGERATION UNIT — AREA LOCATOR

Item Section Number in Current Document

Section Number in Manual T-318PL. Refer to:

Area Description

1 Section 10 Section 2.7 Control Box

2 Section 11 Section 2.12 Compressor Tubing

3 Section 13 Section 2.13 Receiver

4 Section 14 Section 2.20 Evaporator Coil

5 Section 15 Section 2.22 Back Panel Assembly

6 Section 16 Section 2.33 Labels and Decals

7 Section 17 Remote Evaporator — Frame

8 Section 18 Remote Evaporator — Refrigeration

9 Section 19 Remote Evaporator — Electrical Kit

10 Section 21 Remote Evaporator — Wire Harness

11 Section 23 Remote Evaporator — Heater Kit

12 Section 25 Remote Evaporator — Installation Components

2

3

1

6

4, 5

7

12

8, 9, 10, 11, 12

101 T-319

10 CONTROL BOX — SHIELDS REMOVED, STD ELECTRICAL COMPONENTS

Item Part Number Description Qty

1 10-00431-07 Contactor, Compressor, (PA) (PB) (30 Amp) 2

2 34-06243-00 Screw, Pan Head, (Thread Cutting), #8-32 x 3/4 Long — SST 8

3 10-00431-06 Contactors, (VE) (VH) (12 Amp) 2

4 10-00431-03 Contact, Auxiliary 1

MANUAL DEFROST/ INTERVAL

VE

PB

VH

PA

3 4

1 2

2

T-319 111

11 COMPRESSOR TUBING (69NT40-541-304)

Item Part Number Description Qty

1 14-00263-00 Valve, Stepper Motor — Includes: 1

2 14-00263-20 Piston and Motor Assembly — Includes: 1

3 14-00263-23 O-Ring 1

4 14-00263-22 Cap 1

5 22-02392-03 Connector (To Power Pack) 1

6 22-02393-01 Pin, 18-20 Gauge (Used on 22-02392-03) 4

7 22-02394-03 Seal (Used on 22-02392-03) 4

8 34-06053-05 Washer, Mylar, 0.205 ID x 0.60 OD 6

9 66-U—1—5321-8 Washer, Flat, #10 — SST 2

10 10-00388-00 Power Pack, Stepper Motor — Includes: 1

11 22-01835-00 Packard Block 1

14

15 16 17 18 19

20 8, 21

22 23 24

8, 9

5, 6, 7

2

3, 4

1

10, 11, 12, 13

112 T-319

12 22-01566-01 Packard Terminal 5

13 22-02394-02 Cable Seal 5

14 76-66611-00 Tube Assembly — Includes: 1

15 14-00206-00 Valve, Service Suction 1

16 56-66712-00 Tube, 1-1/8 OD 1

17 56-66711-00 Tube, 1-1/8 OD 1

18 DE40BA-701 Tee, 1-1/8 OD 1

19 56-66710-00 Tube, 1-1/8 OD 1

20 68-86015-00 Bracket 0.125 Thick Aluminum 1

21 34-00928-09 Rivet, Blind, 0.156 Diameter, 0.126-0.250 — SST 4

22 34-06053-00 Washer, Mylar, 0.25 ID x 0.80 OD 1

23 66-U—1—5371-6 Screw, Machine Hex Head, #10-24 x 0.75 Long — SST 3

24 34-00373-69 Clamp, Tube, 1.38 Diameter, Cushion — SST 1

11 COMPRESSOR TUBING (69NT40-541-304)

T-319 121

12 COMPRESSOR TUBING (69NT40-541-345)

19, 31

36

30

36

33

36

30

4 18

4

24, 27, 28

43

25

20, 24, 27, 28

17

21, 24, 26

22, 24, 26, 29

8

25 24, 28, 29, 41

14

42

35

122 T-319

Item Part Number Description Qty

1 14-00353-04 Valve, Stepper Motor — Includes: 1

2 14-00353-20 Piston and Motor Assembly — Includes: 1

3 14-00353-21 Gasket 1

4 42-66644-00 Gasket, Suction 2

5 14-00353-04 Valve 2

6 14-00206-01 Valve, Service Discharge 1

7 40-00542-01 Elbow, Adapter High Pressure 1

8 40-00520-03 Cap M10 X 1.0-6G 1

9 69NT—35—1056 Tube 7/8 OD x 0.045W CU 1

10 14-00204-04 Valve, Head Pressure Reg 1

11 69NT—35—1228 Tube 7/8 OD x 0.045W CU 1

12 14-00206-01 Valve, Service Suction 1

13 40-00542-00 Elbow Adapter, Low Pressure 1

12 COMPRESSOR TUBING (69NT40-541-345)

5

16

34 40

12

15

38 37

17

39

13

11

109

6

7

T-319 123

14 40-00520-02 Cap M8 x 1.0-6G 1

15 56-66711-00 Tube, Suction 1-1/8OD x 0.050W CU 1

16 56-07455-00 Tube, Suction 1.125 O.D. 2

17 56-07323-00 Tube, Suction 1.125 O.D. 1

18 99TS0528CK002000 Tube 5/16 OD x 0.028 W 1

19 42-00425-116 Insulation, Tube 2

20 69NT—41—702 Bracket Assembly 1

21 66-U—1—3632-24 Clamp, Tube 1.18 Dia Cushion 1

22 66-U—1—3632-20 Clamp, Tube 0.88 Dia Cushion 1

23 66-U—1—5371-7 Screw, Machine Hex Head #10-24 x 0.500 SLTD 1

24 66-U—1—5371-6 Screw, Machine Hex Head #10-24 x 0.750 SLTD 8

25 66-U—1—5361-46 Screw, Cap Hex Head 4

26 34-06053-00 Washer 0.250 ID x 0.800 OD 2

27 66-U—1—5321-8 Washer, Plain #10 Type A 3

28 34-06053-05 Washer 0.205 ID x 0.600 OD 6

29 34-06212-10 Washer, Plain #10 Type A 2

30 42-00032-11 Insulation 0.25THK x 2.0 x 7.5 12

31 66-U—1—3882-3 Wire Tie 1/16-4.0 SELFLKNG 12

32 66-U—1—3882 Wire Tie 1/16 — 1 3/4 SELFLKNG 6

33 10-00388-00 Power Pack, Stepper Motor 1

34 56-07435-00 Tube, Quench Line 1SP 1

35 42-00425-20 Insulation, Tube 1

36 42-00032-12 Insulation 0.12THK x 2.0 x 7.5 9

37 56-66710-00 Tube 1-1/8OD x 0.050W CU 1

38 —DE—40BA-701 Tee 1-1/8C 1

39 56-66685-00 Tube 1-1/8OD x 0.050W CU 1

40 56-66712-00 Tube 1-1/8OD x 0.050W CU 1

41 68-86015-00 Bracket, 0.125 THK

42 34-00373-69 Clamp, Tube 1.38 Dia Cushion 1

43 42-66616-00 Insulation Tube 1

12 COMPRESSOR TUBING (69NT40-541-345)

T-319 131

13 RECEIVER

8

5

17

18

19

20

4

Item 1

4

2

3

6 7

8

6 7

10

9

11 12 13 14 15 16

2

132 T-319

Item Part Number Description Qty

1 65-00185-03 Receiver, Electro-Coated Modular, Copper — Includes: 1

2 14-00220-04 Glass, Sight, w/Red Balls, 1/2-14 NPT 1

3 14-00221-03 Indicator, Moisture, Liquid 1

4 14-01032-14 Plug, Fusible, 3/8 NPT — Brass A/R

14-00215-06 Disc, Rupture, 3/8 NPT — Alternate A/R

5 58-04026-69 Protector 1

6 66U1-5361-25 Screw, Hex Head, 1/4-20 x 3/4 Long — SST 4

7 66U1-5321-7 Washer, Flat, 1/4 — SST 4

8 34-06053-00 Washer, Mylar, 0.250 ID x 0.800 OD 4

9 68-86030-00 Bracket, Liquid Line Valve 1

10 14-00221-00 Valve, Liquid Line 1

11 34-06053-05 Washer, Mylar, 0.205 ID x 0.60 OD 2

12 68-86023-00 Bracket 0.125 Thick Aluminum 1

13 58-04026-72 Protector 1

14 66U1-5321-2 Washer, Plain #8 2

15 66U1-5371-5 Screw, Machine Hex Head, #8-32 x 0.75 Long 2

16 66U1-5371 Screw, Machine Hex Head, #8-32 x 0.50 Long (Mount Solenoid Valve

to Bracket) 2

17 14-01090-14 Solenoid Valve Body 1

18 14-01091-02 Solenoid Valve Coil 1

19 14-00212-02SV Valve, Quench, Thermostatic Expansion — Includes: 1

NS 14-00212-21 Kit, Repair — Includes: 1

NS NSS Power Head 1

20 58-04026-71 Protector, Mylar 1

4 14-01032-14 Plug, Fusible, 3/8 NPT — Brass A/R

14-00215-06 Disc, Rupture, 3/8 NPT — Alternate A/R

5 58-04026-69 Protector 1

13 RECEIVER

T-319 141

14 EVAPORATOR COIL — REAR PANELS REMOVED

Item Part Number Description Qty

1 44-00370-03 Clamp, Tube, 0.50 Diameter 1

2 44-00370-08 Clamp, Tube, 1.125 Diameter 1

3 66U1-5381-1 Screw, Hex Head, #10-24 X.75 Thread Cutting 2

4 44-00370-02 Clamp, Cushioned, 0.38 Diameter 2

5 34-00373-11 Clamp Tube, 0.88 Diameter 2

6 44-01143-08 Clamp 1/2 and1/2 Diameter 3

7 34-00655-10 Screw, Hex Head, 1/4-20 x 1.25 Long 3

8 34-00667-11 Nut, Self-Locking, 1/4-20 3

9 66U1-5321-3 Washer, Plain 1/4N 6

6

4

2 3

1

3

3 5

3

1 3

9 8 7

T-319 151

15 BACK PANEL ASSEMBLY

Item Part Number Description Qty

1 66U1-5371-7 Screw, Machine Hex Head, #10-24 x 0.50 Long 7

2 66U1-5321-8 Washer, Plain, #10 Type A 7

3 68-86028-00 Grille, Top 1

4 68-86029-00 Grille, Top (Unpainted) 1

5 34-00928-07 Rivet, Blind, 5/32 Diameter, Grip Range — 1/16-1/8 7

6 34-00928-09 Rivet, Blind, 5/32 Diameter, Grip Range — 1/8-1/4 3

1 2

64 53

161 T-319

16 LABELS AND DECALS

Item Part Number Description Qty

1 62-66679-00 Label, Function Code — English 1

1

T-319 171

17 REMOTE EVAPORATOR — FRAME

A

A

A-A

4

2

5 6

3

8

9

1

15

11

7

12

10

14

13

2

2

2 9 3 9

172 T-319

Item Part Number Description Qty

1 62-60219-00 Decal, Carrier Transicold 1

2 34-00793-12 Screw, Self-Tapping, Hex Head, 1/4 Inch X 0.75 16

3 34-00663-11 Washer, Lock, 1/4 Spring 2

4 34-01152-20 Screw, Cap, Hex Head, M6 X 20 MM 6

5 34-60000-16 Screw, Machine, Hex Head, M5 X 16 MM 8

6 34-60095-25 Washer, Lock, M5 8

7 42-00032-00 Insulation, Prestite A/R

8 34-00662-11 Washer, Plain, 1/4 Inch 10

9 42-01203-05 Insulation, 0.16 Thick 2

10 79-60326-04 Skin Assembly, Evaporator 1

11 48-60143-01 Panel, Access, Evaporator 1

12 79-60325-04 Skin Assembly, Evaporator 1

13 79-60388-02 Frame, Evap, Top 1

14 79-60377-02 Drain Pan, Evaporator 2

15 68-60245-01 Venturi Ring, Blower Motor 2

17 REMOTE EVAPORATOR — FRAME

T-319 181

18 REMOTE EVAPORATOR — REFRIGERATION

Item Part Number Description Qty

1 81-02628-00 Valve Assembly, Liquid Line Solenoid / TXV Assembly — Includes: 1

2 14-00350-02 Valve, Solenoid, 3/8 OD Less Coil 1

3 22-02579-00 Coil, Solenoid — Includes: 1

4 22-50078-02SV Connector, 2-Wire (Mates with 22-50078-01SV) 1

5 14-60007-02 Adapter, TXV, O-Ring Seal 1

6 14-60009-03 Orifice, TXV, #3, Brazed-On 1

7 14-60039-00 Expansion Valve, TXV 1

8 14-00150-51 Repair Kit, Solenoid Valve (for 14-00350-00 Valve) 1

1

8 — SOLENOID VALVE REPAIR KIT

2

3 4

5 6 7

T-319 191

19 REMOTE EVAPORATOR — ELECTRICAL KIT (69NT40-541-304)

A A

VIEW B-B

VIEW A-A

B

B

14 16 17

14 16 17 18 19

20 21 22 23

13 14 1511 12 16

1 2

10

9

5 6 8

5 6 7

4 3

192 T-319

Item Part Number Description Qty

1 54-60022-09 Motor/Fan Assembly — Includes: 2

2 22-01613-16 Connector, 6-Wire (Mates with 22-01613-18) 2

3 62-11111-01 Decal, MHD-1100 1

4 22-04078-01 Harness, MHD-1100 Evaporator 1

5 34-00662-11 Washer, Plain, 1/4 10

6 34-00663-11 Washer, Lock, 1/4 Spring 10

7 34-01152-20 Screw, Cap, Hex Head, M6 X 20 MM 8

8 34-00666-11 Nut, Hex, 1/4-20 2

9 24-60002-08 Heater, Drain Hose, 13 Watts 1

10 58-00065-65 Grommet, 0.75 ID 1

11 68-60301-00 Bracket, Fan Motor 2

12 42-00183-00 Trim, Flexible, Black, 25-Foot Roll 19

13 34-00658-06 Screw, Mach Hex Head, #10-32 X 0.75 2

14 34-00662-09 Washer, Plain, #10 6

15 34-00733-00 Nut, Hex, Keps, #10-32 4

16 34-01197-10 Screw, Cap, Hex Head, M4 X 10 MM 14

17 34-00945-04 Washer, Lock, M4 Spring 6

18 12-00576-01 Thermistor Assembly, Defrost Sensor — Includes: 1

19 22-01585-00SV Connector, 2-Wire (Mates with 22-02392-00) 1

20 22-60010-01 Sensor Assembly, Return Air — Includes: 1

21 12-01072-11 Thermistor, Return Air 1

22 22-50078-01SV Connector, 2-Wire (Mates with 22-50078-02SV) 1

23 58-00065-02 Grommet, 0.25 ID 2

19 REMOTE EVAPORATOR — ELECTRICAL KIT (69NT40-541-304)

T-319 201

20 REMOTE EVAPORATOR — ELECTRICAL KIT (69NT40-541-345)

VIEW B-B

VIEW A-A VIEW C-C

C

AA

C

B

B

14 16 17

14 16 17 18

19 20

13 14 1511 12 16

1 2

10

9

5 6 8

5 6 7

4 3

10

21

22

202 T-319

Item Part Number Description Qty

1 54-60022-09 Motor/Fan Assembly — Includes: 2

2 22-01613-16 Connector, 6-Wire (Mates with 22-01613-18) 2

3 62-11111-01 Decal, MHD-1100 1

4 22-66689-00 Wire Harness 1

5 34-00662-11 Washer, Plain, 1/4 10

6 34-00663-11 Washer, Lock, 1/4 Spring 10

7 34-01152-20 Screw, Cap, Hex Head, M6 X 20 MM 8

8 34-00666-11 Nut, Hex, 1/4-20 2

9 24-60002-06 Heater, Drain Hose, 25 Watts 2

10 58-60298-03 Grommet, Tap 14-20N 2

11 68-60301-00 Bracket, Fan Motor 2

12 42-00183-00 Trim, Flexible, Black, 25-Foot Roll 19

13 34-00658-06 Screw, Mach Hex Head, #10-32 X 0.75 2

14 34-00662-09 Washer, Plain, #10 6

15 34-00733-00 Nut, Hex, Keps, #10-32 4

16 34-01197-10 Screw, Cap, Hex Head, M4 X 10 MM 14

17 34-00945-04 Washer, Lock, M4 Spring 6

18 12-00576-00 Thermistor, Defrost Sensor 1

19 12-00566-50 Sensor Assembly, Return Air — Includes: 1

20 22-50078-01SV Connector, 2-Wire (Mates with 22-50078-02SV) 1

21 58-60298-05 Grommet, Tap 26/35 1

22 12-00500-02 Thermistor, Supply Sensors 2

20 REMOTE EVAPORATOR — ELECTRICAL KIT (69NT40-541-345)

T-319 211

21 REMOTE EVAPORATOR — WIRE HARNESS (69NT40-541-304)

LSV

CDWR1

CDWR2

HTA

HTB

DTS

C6

C7

C8

C9

RAT

C1

C2

C3

1

2

3

4

5

6

7

8

8

6

9

10

212 T-319

Item Part Number Description Qty

1 22-04078-01 Wire Harness, Evap — Includes: 1

2 22-50078-01SV Connector, 2-Wire (Mates w/ 22-50078-02SV), LSV 1

3 22-01613-08 Connector, 4-Wire (Mates w/ 22-01613-10), C3 1

4 22-01613-16 Connector, 6-Wire (Mates w/ 22-01613-18), C2 1

5 22-01613-33 Connector, 12-Wire (Mates w/ 22-01613-30), C1 1

6 22-01613-00 Connector, 2-Wire (Mates w/ 22-01613-02), CDWR1, CDWR2 2

7 22-50078-02SV Connector, 2-Wire (Mates w/ 22-50078-01SV), RAT 1

8 12-01144-00 Thermostat, Defrost Termination, HTA, HTB 2

9 22-02392-00SV Connector, 2-Wire (Mates w/ 22-01585-00SV), DTS 1

10 22-01613-18 Connector, 6-Wire (Mates w/ 22-01613-16), C6, C7, C8,C9 2

21 REMOTE EVAPORATOR — WIRE HARNESS (69NT40-541-304)

T-319 221

22 REMOTE EVAPORATOR — WIRE HARNESS (69NT40-541-345)

C2

C1

C3

RDLH

RE1

RE2

RDLH

RLSV

RPRS

RDTS

RHTT

RPSS, RSSS

(3, 7, 10, 14)

(8, 13, 14, 15)

(2, 5, 10)

(6, 11, 12, 15)

(6, 11, 12, 15)

(1 , 4 ,

(9, 16, 17, 18, 19)

(1, 4, 10)

(20)

(22)

(21)

222 T-319

Item Part Number Description Qty

1 22-01613-00 Receptacle [RDLH] 1

2 22-01613-08 Receptacle [C3] 1

3 22-01613-33 Receptacle [C1] 1

4 22-01613-01 Secondary Lock [RDLH] 1

5 22-01613-09 Secondary Lock [C3] 1

6 22-01613-19 Secondary Lock [RE1, RE2] 1

7 22-01613-28 Secondary Lock [C1] 1

8 22-01613-29 Secondary Lock [C2] 1

9 22-50078-01A Secondary Lock [RPRS] 1

10 22-01613-14 Pin [C1]

Pin [C3]

Pin [RDLH]

10

4

2

11 22-01613-34 Pin [RE1, RE2] 1

12 22-01613-18 Plug [RE1, RE2] 1

13 22-01613-30 Plug [C2] 1

14 22-01660-08 Plug [C1]

Plug [C2]

2

3

15 22-01613-15 Socket [C2]

Socket [RE1, RE2]

9

5

16 22-02394-00 Seal [RPRS] 2

17 22-50078-02 Connector [RPRS] 1

18 22-50078-02B Connector Seal [RPRS] 1

19 22-50078-47D Terminal [RPRS] 2

20 12-00500-02 Thermistor [RPSS, RSSS] 2

21 12-00554-01 Thermostat [RHTT] 1

22 12-00576-00 Thermistor [RDTS] 1

22 REMOTE EVAPORATOR — WIRE HARNESS (69NT40-541-345)

T-319 231

23 REMOTE EVAPORATOR — HEATER KIT (69NT40-541-304)

Item Part Number Description Qty

1 24-02021-21 Heater Assembly — Includes: 2

2 24-02021-01 Heater, Resistance 6

3 44-60060-00 Clip, Heater, Stainless Steel 24

1

2 3

2 3

241 T-319

24 REMOTE EVAPORATOR — HEATER KIT (69NT40-541-345)

Item Part Number Description Qty

1 24-60044-13 Heater: 2400W, 260VAC 1

2 44-60084-00 Clip 18

1

T-319 251

25 REMOTE EVAPORATOR — INSTALLATION COMPONENTS

Item Part Number Description Qty

1 86-66696-00 Guard, Remote 1

2 34-06248-30 Screw, Cap Hex Head, M8, 30 MM Long 8

3 66U1-5321-4 Washer, Plain, 5/16 N 8

4 34-00663-12 Washer, Lock, 5/16 8

5 34-00373-56 Clamp, Tube 64

6 66U1-5321-3 Washer, Plain 96

7 44-00181-08 Clamp, Ring 9

8 44-00181-12 Clamp, Ring 9

1 2 3 4

High Voltage Cable

Liquid Line

Suction Line

Low Voltage Cable

6

6

6

6 5

5

7

8

261 T-319

26 REMOTE EVAPORATOR — HEATER JUNCTION BOX

Item Part Number Description Qty

1 91-60331-02 Heater Junction Box 1

1

Index-1 T-319

INDEX

Numerics

10-00388-00 111, 123

10-00431-03 101

10-00431-06 101

10-00431-07 101

12-00500-02 202, 222

12-00554-01 222

12-00566-50 202

12-00576-00 202, 222

12-00576-01 192

12-01072-11 192

12-01144-00 212

14-00150-51 181

14-00204-04 122

14-00206-00 112

14-00206-01 122

14-00212-02SV 132

14-00212-21 132

14-00215-06 132

14-00220-04 132

14-00221-00 132

14-00221-03 132

14-00263-00 111

14-00263-20 111

14-00263-22 111

14-00263-23 111

14-00350-02 181

14-00353-04 122

14-00353-20 122

14-00353-21 122

14-01032-14 132

14-01090-14 132

14-01091-02 132

14-60007-02 181

14-60009-03 181

14-60039-00 181

22-01566-01 112

22-01585-00SV 192

22-01613-00 212, 222

22-01613-01 222

22-01613-08 212, 222

22-01613-09 222

22-01613-14 222

22-01613-15 222

22-01613-16 192, 202, 212

22-01613-18 212, 222

22-01613-19 222

22-01613-28 222

22-01613-29 222

22-01613-30 222

22-01613-33 212, 222

22-01613-34 222

22-01660-08 222

22-01835-00 111

22-02392-00SV 212

22-02392-03 111

22-02393-01 111

22-02394-00 222

22-02394-02 112

22-02394-03 111

22-02579-00 181

22-04078-01 192, 212

22-50078-01A 222

22-50078-01SV 192, 202, 212

22-50078-02 222

22-50078-02B 222

22-50078-02SV 181, 212

22-50078-47D 222

22-60010-01 192

22-66689-00 202

24-02021-01 231

24-02021-21 231

24-60002-06 202

24-60002-08 192

24-60044-13 241

34-00373-11 141

34-00373-56 251

34-00373-69 112, 123

34-00655-10 141

34-00658-06 192, 202

34-00662-09 192, 202

34-00662-11 172, 192, 202

34-00663-11 172, 192, 202

34-00663-12 251

34-00666-11 192, 202

34-00667-11 141

34-00733-00 192, 202

34-00793-12 172

34-00928-07 151

34-00928-09 112, 151

34-00945-04 192, 202

34-01152-20 172, 192, 202

34-01197-10 192, 202

34-06053-00 112, 123, 132

34-06053-05 111, 123, 132

34-06212-10 123

34-06243-00 101

T-319 Index-2

34-06248-30 251

34-60000-16 172

34-60095-25 172

40-00520-02 123

40-00520-03 122

40-00542-00 122

40-00542-01 122

42-00032-00 172

42-00032-11 123

42-00032-12 123

42-00183-00 192, 202

42-00425-116 123

42-00425-20 123

42-01203-05 172

42-66616-00 123

42-66644-00 122

44-00181-08 251

44-00181-12 251

44-00370-02 141

44-00370-03 141

44-00370-08 141

44-01143-08 141

44-60060-00 231

44-60084-00 241

48-60143-01 172

54-60022-09 192, 202

56-07323-00 123

56-07435-00 123

56-07455-00 123

56-66685-00 123

56-66710-00 112, 123

56-66711-00 112, 123

56-66712-00 112, 123

58-00065-02 192

58-00065-65 192

58-04026-69 132

58-04026-71 132

58-04026-72 132

58-60298-03 202

58-60298-05 202

62-11111-01 192, 202

62-60219-00 172

62-66679-00 161

65-00185-03 132

66-U—1—3632-20 123

66-U—1—3632-24 123

66-U—1—3882 123

66-U—1—3882-3 123

66U1-5321-2 132

66U1-5321-3 141, 251

66U1-5321-4 251

66U1-5321-7 132

66-U—1—5321-8 111, 123

66U1-5321-8 151

66U1-5361-25 132

66-U—1—5361-46 123

66U1-5371 132

66U1-5371-5 132

66-U—1—5371-6 112, 123

66-U—1—5371-7 123

66U1-5371-7 151

66U1-5381-1 141

68-60245-01 172

68-60301-00 192, 202

68-86015-00 112, 123

68-86023-00 132

68-86028-00 151

68-86029-00 151

68-86030-00 132

69NT—35—1056 122

69NT—35—1228 122

69NT—41—702 123

76-66611-00 112

79-60325-04 172

79-60326-04 172

79-60377-02 172

79-60388-02 172

81-02628-00 181

86-66696-00 251

91-60331-02 261

99TS0528CK002000 123

A

Adding Refrigerant to System (Full Charge) 67

Adding Refrigerant to System (Partial Charge) 67

B

Back Panel Assembly 28

C

Check Controller Function Codes 42

Checking the Refrigerant Charge 67

Complete Inspection 42

Compressor Tubing 24

Configuration Identification 21

Connect Power 41

Control Box 26

D

—DE—40BA-701 123

DE40BA-701 112

Index3 T-319

Defrost Operation 44

Display Module 31

Dual Temp Assembly Installation Kit 214

Dual Temperature Remote Defrost 44

E

Electrical Data 215

Electrical Kit 212

Enabling Dual Temperature Operation 33

Evacuation and Dehydration 65

Evaporator Section 24

F

First Aid 11

Frame 29

G

General 11

General Safety Notices 11

H

Heater Kit 213

Host Solenoid Valves 68

Host Unit Triggers a Shutdown Alarm 51

I

Inspection (Before Starting) 41

Introduction 21

M

Maintenance 11

Manifold Gauge Set 61

N

Notices 11

O

Operating Precautions 11

Operational Software 33

P

Physical Inspection 42

Precautions 11

Pumping Down the Unit 64

R

Receiver 26

Refrigerant Charge 67

Refrigerant Leak Checking 65

Refrigeration 211

Refrigeration Circuit 218

Refrigeration System Data 215

Refrigeration Unit — Front Section 21

Remote Compartment Alarms 35

Remote Compartment Sensor Data 34

Remote Compartment Set Point Change 34

Remote Enable Temperature 35

Remote Evaporator 29

Remote Evaporator Defrost Interval 34

Remote Evaporator Not Running 51

Remote Evaporator Runs But Has Insufficient Cooling 51

Remote Evaporator SMV Position 34

Remote Evaporator, Electrical Kit 212

Remote Evaporator, Frame 29

Remote Evaporator, Heater Kit 213

Remote Evaporator, Refrigeration 211

Remote Minimum Temperature Delta 35

Remote Solenoid Valves 68

Remote Supply Sensor Malfunction 51

Replacing Solenoid Valve Internal Parts 69

S

Safety 11

Safety And Protective Devices 217

Section Layout 61

Service Valves 61

Servicing Solenoid Valves 68

Starting and Stopping Instructions 42

Start-Up Inspection 42

T

Temperature Control Microprocessor 31

U

Unit Pre-Trip Diagnostics 36

A part of UTC Building & Industrial Systems, a business unit of United Technologies Corporation. Stock symbol UTX.

Carrier Transicold Division, Carrier Corporation P.O. Box 4805 Syracuse, NY 13221 USA

www.carrier.transicold.com