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69NT40-541-314
Carrier 69NT40-541-314 Manuals
Manuals and User Guides for Carrier 69NT40-541-314. We have
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Carrier 69NT40-541-314 manual available for free PDF download: Operation And Service
Carrier 69NT40-541-314 Operation And Service (154 pages)
Upflow Container Refrigeration Units
Brand:
Carrier
| Category:
Industrial Electrical
| Size: 7.09 MB
Table of Contents
Table of Contents
6
Description
25
General Description
25
Refrigeration Unit - Front Section
25
Fresh Air Makeup Vent
25
Figure 3.1 Refrigeration Unit -- Front Section
25
Evaporator Section
26
Figure 3.2 Evaporator Section - UPFLOW Units with Center Access Panel
26
Compressor Section
27
Figure 3.3 Compressor Section
27
Air-Cooled Condenser Section
28
Figure 3.4 Air-Cooled Condenser Section
28
Water-Cooled Condenser Section
29
Figure 3.5 Water-Cooled Condenser Section
29
Control Box Section
30
Communications Interface Module
30
Figure 3.6 Control Box Section
30
Refrigeration System Data
31
Table 3-1 Refrigeration System Data
31
Electrical Data
32
Table 3-2 Electrical Data
32
Safety and Protective Devices
33
Table 3-3 Safety and Protective Devices
33
Refrigeration Circuit
34
Figure 3.7 Refrigeration Circuit Schematic
35
Arctic Option
36
Figure 3.8 Arctic Option
36
Temperature Control Microprocessor System
37
Figure 4.1 Temperature Control System
37
Figure 4.2 Key Pad
38
Key Pad
38
Table 4-1 Key Pad Function
38
Controller
39
Display Module
39
Figure 4.3 Display Module
39
Controller Software
40
Configuration Software (Configuration Variables)
40
Operational Software (Function Codes)
40
Figure 4.4 Control Module
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
Table 4-2 Datacorder Configuration Variables
48
Table 4-3 Datacorder Standard Configurations
48
Figure 4.5 Standard Configuration Report
50
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 Pre-Trip Records
68
Table 4-9 Datacorder Pre-Trip Result Records
69
Table 4-10 Datacorder Alarm Indications
70
Figure 5.1 Autotransformer
72
Figure 5.3 Controller Operation - Perishable Mode
78
Figure 5.4 Controller Operation - Frozen Mode
78
Figure 5.5 Perishable Mode Cooling
79
Figure 5.6 Perishable Mode Heating
80
Figure 5.7 Frozen Mode
81
Figure 5.8 Defrost
82
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
88
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 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
93
Procedure - Partial System
94
Figure 7.5 Compressor Service Connections
94
Refrigerant Charge
95
Checking the Refrigerant Charge
95
Adding Refrigerant to System (Full Charge)
95
Adding Refrigerant to System (Partial Charge)
95
Compressor
95
Removal and Replacement of Compressor
96
Figure 7.6 Compressor
96
Compressor Disassembly
97
Figure 7.7 Exploded View of Valve Plate
97
Figure 7.8 Bottom Plate Removed
98
Figure 7.9 Oil Pump and Bearing Head
99
Figure 7.10 Low Profile Oil Pump
99
Figure 7.11 Motor End Cover
100
Compressor Re-Assembly
101
Figure 7.12 Equalizing Tube and Lock Screw Assembly
101
Figure 7.13 Crankshaft Assembly
101
Preparation
102
Figure 7.14 Suction Valve & Positioning Springs
102
Figure 7.15 Piston Ring
102
Installing the Components
103
Compressor Oil Level
103
High Pressure Switch
104
Replacing High Pressure Switch
104
Checking High Pressure Switch
104
7.10 Condenser Coil
105
7.11 Condenser Fan and Motor Assembly
105
Figure 7.16 High Pressure Switch Testing
105
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
Thermostatic Expansion Valve (Txv)
109
Checking Superheat
109
Figure 7.19 Thermostatic Expansion Valve Bulb
109
Expansion Valve Replacement
110
Figure 7.20 Thermostatic Expansion Valve
110
Figure 7.21 Hermetic Thermostatic Expansion Valve Brazing Procedure
110
7.15 Evaporator Coil and Heater Assembly
111
Evaporator Coil Replacement
111
Figure 7.22 Thermostatic Expansion Valve Bulb Location
111
Evaporator Heater Replacement
112
Figure 7.23 Evaporator Fan Locating Dimension
112
Figure 7.24 Evaporator Fan Assembly
113
Figure 7.25 Suction Modulation Valve (SMV)
116
Figure 7.26 DPRV Replacement Value Chart
118
Figure 7.27 Controller Section of the Control Box
120
Figure 7.28 Sensor and Cable Splice
123
Table 7-1 Sensor Temperature/Resistance Chart
123
Figure 7.29 Sensor Types
124
Figure 7.30 Return Sensor Positioning
125
Figure 7.31 Supply Sensor Positioning
125
Figure 7.32 Electronic Partlow Temperature Recorder
128
Figure 7.33 Door Hinge Repair
130
Table 7-2 Crack, Chip and Hole Repair Kit
130
Table 7-3 Insert Repair Kit
131
Table 7-4 Drill Information
131
Figure 7.34 Insert Location
132
Figure 7.35 Communications Interface Installation
133
Table 7-5 Recommended Bolt Torque Values (Dry, Non-Lubricated for 18-8 Stainless Steel)
135
Table 7-6 Wear Limits for Compressors
136
Table 7-7 Compressor Torque Values
137
Table 7-8 R-134A Temperature - Pressure Chart
138
Figure 7.36 R-134A Compressor Pressure & Motor Current Curves Versus Ambient Temperature (1 of 2)
139
Figure 7.37 R-134A Compressor Pressure & Motor Current Curves Versus Ambient Temperature (2 of 2)
140
Figure 8.1 Legend
141
Figure 8.2 Schematic Diagram - Standard Unit Configuration
142
Figure 8.3 Unit Wiring Diagram - Standard Unit Configuration (1 of 2)
143
Figure 8.4 Unit Wiring Diagram Standard Unit Configuration (2 of 2)
144
Figure 8.5 Schematic Diagram - Units with Normal Evap Fan Capability, Transfresh & Crankcase Heater
145
Figure 8.6 Wiring Diagram - Units with Normal Evap Fan Capability, Transfresh & Crankcase Heater (1)
146
Figure 8.7 Wiring Diagram - Units with Normal Evap Fan Capability, Transfresh & Crankcase Heater (2)
147
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