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69NT40-541-001
Carrier 69NT40-541-001 User Manual
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Container Refrigeration
OPERA
TIONS AND
SER
VICE
For
69NT40-541-001 T
O
199
Container Refrigeration Units
T
-316 Rev D
2
Table of Contents
Default Chapter
6
Table of Contents
6
Figure 3.1 Refrigeration Unit - Front Section
25
Figure Number
25
Fresh Air Makeup Vent
25
Refrigeration Unit - Front Section
25
Evaporator Section
26
Figure 3.2 Evaporator Section
26
Compressor Section
27
Figure 3.3 Compressor Section
27
Air-Cooled Condenser Section
28
Figure 3.4 Air-Cooled Condenser Section
28
Figure 3.5 Water-Cooled Condenser Section
29
Water-Cooled Condenser Section
29
Communications Interface Module
30
Control Box Section
30
Figure 3.6 Control Box Section
30
Refrigeration System Data
31
Electrical Data
32
Table Number
33
Safety and Protective Devices
33
Table 3-1 Safety and Protective Devices
33
Refrigeration Circuit
34
Figure 3.7 Refrigeration Circuit Schematic
35
Microprocessor
37
Temperature Control Microprocessor System
37
Figure 4.1 Temperature Control System
37
Figure 4.2 Key Pad
38
Key Pad
38
Display Module
39
Figure 4.3 Display Module
39
Figure 4.4 Micro-Link 3 Controller
39
Controller
40
Controller Software
40
Configuration Software (Configuration Variables)
40
Operational Software (Function Codes)
40
Modes of Operation
41
Temperature Control - Perishable Mode
41
Evaporator Fan Operation
41
Defrost Interval
41
Failure Action
41
Generator Protection
41
Condenser Pressure Control
42
Arctic Mode
42
Perishable Mode - Conventional
42
Perishable Mode - Economy
42
Perishable Mode - Dehumidification
43
Perishable, Dehumidification - Bulb Mode
43
Temperature Control - Frozen Mode
44
Frozen Mode - Conventional
44
Frozen Mode - Economy
44
Controller Alarms
44
Unit Pre-Trip Diagnostics
45
Datacorder
46
Description
46
Datacorder Software
47
Sensor Configuration (Dcf02)
47
Table 4-2 Datacorder Configuration Variables
47
Table 4-3 Datacorder Standard Configurations
48
Figure 4.5 Standard Configuration Report
49
Logging Interval (Dcf03)
50
Thermistor Format (Dcf04)
50
Sampling Type (Dcf05 & Dcf06)
50
Alarm Configuration (Dcf07 - Dcf10)
50
Datacorder Power-Up
50
Pre-Trip Data Recording
50
Datacorder Communications
51
USDA Cold Treatment
51
Figure 4.6 Datareader
51
USDA Cold Treatment Procedure
52
Datacorder Alarms
53
Table 4-4 Controller Configuration Variables
53
Table 4-5 Controller Function Codes
55
Table 4-6 Controller Alarm Indications
59
Table 4-7 Controller Pre-Trip Test Codes
63
Table 4-8 Datacorder Function Code Assignments
68
Table 4-9 Datacorder Pre-Trip Result Records
69
Table 4-10 Datacorder Alarm Indications
70
Operation
71
Inspection (before Starting)
71
Connect Power
71
Connection to 380/460 Vac Power
71
Connection to 190/230 Vac Power
71
Adjust Fresh Air Makeup Vent
72
Upper Fresh Air Makeup Vent
72
Figure 5.1 Autotransformer
72
Lower Fresh Air Makeup Vent
73
Figure 5.2 Make up Air Flow Chart
73
Fresh Air Position Sensor
74
Connect Water-Cooled Condenser
74
Water-Cooled Condenser with Water Pressure Switch
74
Water-Cooled Condenser with Condenser Fan Switch
74
Connect Remote Monitoring Receptacle
75
Starting and Stopping Instructions
75
Starting the Unit
75
Stopping the Unit
75
Start-Up Inspection
75
Physical Inspection
75
Check Controller Function Codes
75
Start Temperature Recorder
75
Complete Inspection
76
Pre-Trip Diagnosis
76
Table 5-1 Pre-Trip Selection Menu
76
Observe Unit Operation
78
Crankcase Heater
78
Probe Check
78
5.10 Sequence of Operation
78
Figure 5.3 Controller Operation - Perishable Mode
79
Figure 5.4 Controller Operation - Frozen Mode
79
Figure 5.5 Perishable Mode Cooling
80
Sequence of Operation - Perishable Mode Cooling
80
Figure 5.6 Perishable Mode Heating
81
Sequence of Operation - Frozen Mode Cooling
81
Sequence of Operation - Perishable Mode Heating
81
Figure 5.7 Frozen Mode
82
Sequence of Operation - Defrost
82
Figure 5.8 Defrost
83
5.11 Emergency Operation
84
Emergency Bypass Operation
84
Emergency Defrost Operation
84
Troubleshooting
85
Unit will Not Start or Starts then Stops
85
Unit Operates Long or Continuously in Cooling
85
Unit Runs but Has Insufficient Cooling
86
Unit will Not Heat or Has Insufficient Heating
86
Unit will Not Terminate Heating
86
Unit will Not Defrost Properly
86
Abnormal Pressures (Cooling)
87
Abnormal Noise or Vibrations
87
Controller Malfunction
87
6.10 no Evaporator Air Flow or Restricted Air Flow
88
6.11 Thermostatic Expansion Valve Malfunction
88
6.12 Autotransformer Malfunction
88
6.13 Water-Cooled Condenser or Water Pressure Switch
88
Service
89
Section Layout
89
Service Valves
89
Figure 7.1 Service Valve
89
Manifold Gauge Set
90
Figure 7.2 Manifold Gauge Set
90
Figure 7.3 R-134A Manifold Gauge/Hose Set
91
Pumping the Unit down
92
Figure 7.4 Refrigeration System Service Connections
92
Refrigerant Leak Checking
93
Evacuation and Dehydration
93
General
93
Preparation
93
Procedure - Complete System
94
Figure 7.5 Compressor Service Connections
94
Procedure - Partial System
95
Refrigerant Charge
95
Checking the Refrigerant Charge
95
Adding Refrigerant to System (Full Charge)
95
Adding Refrigerant to System (Partial Charge)
96
Compressor
96
Removal and Replacement of Compressor
96
Figure 7.6 Compressor
97
Compressor Disassembly
98
Figure 7.7 Exploded View of Valve Plate
98
Figure 7.8 Bottom Plate Removed
99
Figure 7.9 Oil Pump and Bearing Head
100
Figure 7.10 Low Profile Oil Pump
100
Figure 7.11 Motor End Cover
101
Figure 7.12 Equalizing Tube and Lock Screw Assembly
101
Compressor Reassembly
102
Preparation
102
Figure 7.13 Crankshaft Assembly
102
Figure 7.14 Suction Valve & Positioning Springs
102
Installing the Components
103
Figure 7.15 Piston Ring
103
Compressor Oil Level
104
High Pressure Switch
105
Replacing High Pressure Switch
105
Checking High Pressure Switch
105
7.10 Condenser Coil
105
Figure 7.16 High Pressure Switch Testing
105
7.11 Condenser Fan and Motor Assembly
106
7.12 Water-Cooled Condenser Cleaning
106
Figure 7.17 Water-Cooled Condenser Cleaning - Forced Circulation
108
Figure 7.18 Water-Cooled Condenser Cleaning - Gravity Circulation
108
7.13 Filter-Drier
109
7.14 Thermostatic Expansion Valve
109
Figure 7.19 Thermostatic Expansion Valve Bulb
109
Checking Superheat
110
Figure 7.20 Thermostatic Expansion Valve
110
Hermetic Valve Replacement
110
7.15 Evaporator Coil and Heater Assembly
111
Evaporator Coil Replacement
111
Figure 7.21 Hermetic Thermostatic Expansion Valve Brazing Procedure
111
Evaporator Heater Replacement
112
7.16 Evaporator Fan and Motor Assembly
112
Replacing the Evaporator Fan Assembly
112
Disassemble the Evaporator Fan Assembly
112
Assemble the Evaporator Fan Assembly
113
7.17 Evaporator Fan Motor Capacitors
113
When to Check for a Defective Capacitor
113
Figure 7.22 Evaporator Fan Assembly
113
Removing the Capacitor
114
Checking the Capacitor
114
7.18 Suction Modulation Valve
114
Figure 7.23 Suction Modulation Valve (SMV)
114
Checking the Stepper Valve
115
Precheck Procedure
115
Figure 7.24 Controller Section of the Control Box
117
Table 7-1 Sensor Temperature/Resistance Chart
120
Figure 7.25 Sensor Types
121
Figure 7.26 Sensor and Cable Splice
122
Figure 7.27 Supply Sensor Positioning
122
Figure 7.28 Return Sensor Positioning
122
Figure 7.29 Electronic Partlow Temperature Recorder
125
Figure 7.30 Door Hinge Repair
128
Table 7-2 Crack, Chip & Hole Repair Kit
129
Table 7-3 Insert Repair Kit
129
Table 7-4 Drill Information
129
Figure 7.31 Insert Location
130
Figure 7.32 Communications Interface Installation
131
Table 7-5 Recommended Bolt Torque Values (Dry, Non-Lubricated for 18-8 Stainless Steel)
133
Table 7-6 Wear Limits for Compressors
133
Table 7-7 Compressor Torque Values
134
Table 7-8 R-134A Temperature - Pressure Chart
135
Figure 7.33 R-134A Compressor Pressure and Motor Current Curves Vs Ambient Temp (1 of 2)
136
Figure 7.34 R-134A Compressor Pressure and Motor Current Curves Vs Ambient Temp (2 of 2)
137
Figure 8.1 LEGEND
140
Figure 8.2 SCHEMATIC DIAGRAM
141
Figure 8.3 SCHEMATIC DIAGRAM -- Units with Single Evaporator Fan Capability
142
Figure 8.4 SCHEMATIC DIAGRAM -- Transfresh and Vent Position Sensors (VPS)
143
Figure 8.5 SCHEMATIC DIAGRAM -- Emergency Bypass
144
Figure 8.6 SCHEMATIC DIAGRAM, WIRING DIAGRAM-- Electronic Partlow Recorder
145
Figure 8.7 UNIT WIRING DIAGRAM (Sheet 1 of 2)
146
Figure 8.8 UNIT WIRING DIAGRAM (Sheet 2 of 2)
147
Figure 8.9 UNIT WIRING DIAGRAM (Single Fan Capability) (Sheet 1 of 2)
148
Figure 8.10 UNIT WIRING DIAGRAM (Single Fan Capability) (Sheet 2 of 2)
149
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Carrier 69NT40-541-001 Specifications
General
Brand
Carrier
Model
69NT40-541-001
Category
Industrial Equipment
Language
English
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