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69NT40-551-001
Carrier 69NT40-551-001 Manuals
Manuals and User Guides for Carrier 69NT40-551-001. We have
1
Carrier 69NT40-551-001 manual available for free PDF download: Operation And Service
Carrier 69NT40-551-001 Operation And Service (104 pages)
Container Refrigeration Units
Brand:
Carrier
| Category:
Refrigerator
| Size: 2.63 MB
Table of Contents
Table of Contents
4
Description
15
General Description
15
Refrigeration Unit -- Front Section
15
Fresh Air Makeup Vent
15
Figure 2-1 Refrigeration Unit -- Front Section
15
Evaporator Section
16
Figure 2-2 Evaporator Section
16
Compressor Section
17
Figure 2-3 Compressor Section
17
Air Cooled Condenser Section
18
Figure 2-4 Condenser Section
18
Water-Cooled Condenser Section
19
Figure 2-5 Water-Cooled Condenser Section
19
Control Box Section
20
Communications Interface Module
20
Figure 2-6 Control Box Section
20
Refrigeration System Data
21
Electrical Data
22
Safety and Protective Devices
23
Table 2-1 Safety and Protective Devices
23
Refrigeration Circuit
24
Standard Operation
24
Economized Operation
24
Unloaded Operation
24
Figure 2-7 Refrigeration Circuit Schematic -- Standard Operation
25
Figure 2-8 Refrigeration Circuit Schematic -- Economized Operation
26
Figure 2-9 Refrigeration Circuit Schematic -- Unloaded Operation
26
Microprocessor
27
Temperature Control Microprocessor System
27
Figure 3- 1 Temperature Control System
27
Key Pad
28
Display Module
28
Figure 3- 2 Key Pad
28
Figure 3- 3 Display Module
28
Table 3-1 Key Pad Function
28
Controller
29
Controller Software
29
Configuration Software (Configuration Variables)
29
Operational Software (Function Codes)
29
Figure 3- 4 Control Module
29
Modes of Operation
30
Temperature Control -- Perishable Mode
30
Defrost Interval
30
Failure Action
30
Generator Protection
30
Compressor High Temperature, Low Pressure Protection
30
Perishable Mode -- Conventional
30
Perishable Mode -- Economy
30
Perishable Mode -- Dehumidification
31
Perishable, Dehumidification -- Bulb Mode
31
Temperature Control -- Frozen Mode
31
Frozen Mode -- Conventional
32
Frozen Mode -- Economy
32
Controller Alarms
32
Unit Pre-Trip Diagnostics
32
Datacorder
33
Description
33
Datacorder Software
33
Sensor Configuration (Dcf02)
34
Table 3-2 Datacorder Configuration Variables
34
Table 3-3 Datacorder Standard Configurations
34
Figure 3- 5 Standard Configuration Download Report
35
Logging Interval (Dcf03)
36
Thermistor Format (Dcf04)
36
Sampling Type (Dcf05 & Dcf06)
36
Alarm Configuration (Dcf07 -- Dcf10)
36
Datacorder Power-Up
36
Pre-Trip Data Recording
36
Datacorder Communications
36
Figure 3- 6 Data Reader
36
USDA Cold Treatment
37
USDA Cold Treatment Procedure
37
Datacorder Alarms
37
ISO Trip Header
38
Table 3-4 Controller Configuration Variables
38
Table 3-5 Controller Function Codes
39
Table 3-6 Controller Alarm Indications
42
Table 3-7 Controller Pre-Trip Test Codes
46
Table 3-8 Datacorder Function Code Assignments
50
Table 3-9 Datacorder Pre-Trip Result Records
51
Table 3-10 Datacorder Alarm Indications
52
Operation
53
INSPECTION (before Starting)
53
Connect Power
53
Connection to 380/460 Vac Power
53
Connection To190/230 Vac Power
53
Adjust Fresh Air Makeup Vent
53
Figure 4-1 Autotransformer
53
Upper Fresh Air Makeup Vent
54
Lower Fresh Air Makeup Vent
54
Fresh Air Position Sensor
54
Figure 4-2 Make up Air Flow Chart
54
Connect Water-Cooled Condenser
55
Water--Cooled Condenser with Water Pressure Switch
55
Water-Cooled Condenser with Condenser Fan Switch
55
Connect Remote Monitoring Receptacle
55
Starting and Stopping Instructions
55
Starting the Unit
55
Stopping the Unit
55
Start--Up Inspection
55
Physical Inspection
55
Check Controller Function Codes
55
Complete Inspection
56
Pre-Trip Diagnosis
56
Observe Unit Operation
57
Probe Check
57
Sequence of Operation
57
Sequence of Operation -- Compressor Phase Sequence
57
Figure 4-3 Controller Operation -- Perishable Mode
58
Sequence of Operation -- Perishable Mode Cooling
59
Sequence of Operation -- Perishable Mode Heating
59
Figure 4-5 Perishable Mode
59
Figure 4-6 Perishable Mode Heating
59
Sequence of Operation -- Frozen Mode Cooling
60
Sequence of Operation -- Defrost
60
Figure 4-7 Frozen Mode
60
Figure 4-8 Defrost
60
Emergency Bypass Operation
61
Troubleshooting
62
Unit will Not Start or Starts then Stops
62
Unit Operates Long or Continuously in Cooling
62
Unit Runs but Has Insufficient Cooling
63
Unit will Not Heat or Has Insufficient Heating
63
Unit will Not Terminate Heating
63
Unit will Not Defrost Properly
63
Abnormal Pressures (Cooling)
64
Abnormal Noise or Vibrations
64
Controller Malfunction
65
Evaporator Air Flow or Restricted Air Flow
65
Thermostatic Expansion Valve Malfunction
65
Autotransformer Malfunction
65
Water-Cooled Condenser or Water Pressure Switch
65
Compressor Operating in Reverse
66
Abnormal Temperatures
66
Abnormal Currents
66
Service
67
Section Layout
67
Manifold Gauge Set
67
Figure 6-1 Manifold Gauge Set
67
Figure 6-2 R-134A Manifold Gauge/Hose Set
67
Figure 6-3 Service Valve
68
Refrigerant Leak Checking
69
Evacuation and Dehydration
69
Figure 6-5. Standard Piping Compressor Service Connections
70
Adding Refrigerant to System (Partial Charge)
71
Figure 6-6. Semi--Hermetic Piping Refrigeration System Service Connections
71
Compressor
73
Removal and Replacement of Compressor
73
Table 6-1 Compressor Kit
73
Figure 6-7 Compressor Upper Mounting
74
Figure 6-8 Compressor Lower Mounting
74
Compressor Oil Level
75
High Pressure Switch
76
Replacing High Pressure Switch -- Units with Standard Piping (with Service Valves)
76
Replacing High Pressure Switch -- Units with Semi--Hermetic Piping (Without Service Valves)
76
Checking High Pressure Switch
76
Condenser Coil
76
Condenser Fan and Motor Assembly
76
Figure 6-9 High Pressure Switch Testing
76
Water Cooled Condenser Cleaning
77
Filter-Drier
78
Figure 6-11 Water Cooled Condenser Cleaning - Gravity Circulation
78
Expansion Valves
79
Checking Superheat
79
Figure 6-12 Thermostatic Expansion Valve Bulb
79
Figure 6-13 Hermetic Thermostatic Expansion Valve Brazing Procedure
79
Valve Replacement
80
Evaporator Coil Replacement
80
Evaporator Heater Replacement
80
Figure 6-14 Evaporator Expansion Valve
80
Figure 6-15 Quench & Economizer Expansion Valves
80
ECONOMIZER, UNLOADER and Oil RETURN SOLENOID VALVE
81
Evaporator Fan and Motor Assembly
81
Figure 6-16. Unloader Solenoid Valve
81
Figure 6-17. Oil Return Solenoid Valve (ORV) and Economizer Solenoid Valve (ESV)
81
Replacing the Evaporator Fan Assembly
82
Disassemble the Evaporator Fan Assembly
82
Assemble the Evaporator Fan Assembly
82
Evaporator Fan Motor Capacitors
82
When to Check for a Defective Capacitor
82
Figure 6-18. Evaporator Fan Assembly
82
Removing the Capacitor
83
Valve Override Controls
83
Suction Modulation Valve
84
Precheck Procedure
84
Checking the Stepper Valve
84
Figure 6-19 Suction Modulation Valve (SMV)
84
Autotransformer
85
Controller
85
Handling Modules
85
Controller Trouble-Shooting
85
Figure 6-20 Controller Section of the Control Box
85
Controller Programming Procedure
86
Removing and Installing a Module
86
Vent Position Sensor Service
87
Temperature Sensor Service
87
Sensor Replacement
87
Table 6-2 Sensor Temperature/Resistance Chart (+/--.002%)
87
Sensor Re--Installation
88
Figure 6-21 Sensor Types
88
Figure 6-22 Sensor and Cable Splice
88
Figure 6-23 Supply Sensor Positioning
88
Figure 6-24 Return Sensor Positioning
88
Maintenance of Painted Surfaces
90
Figure 6-25. Electronic Partlow Temperature Recorder
90
Door Hinge Inserts
91
Figure 6-26 Door Hinge Repair
91
Table 6-3 Crack, Chip & Hole Repair Kit
92
Table 6-4 Insert Repair Kit
92
Table 6-5 Drill Information
92
Figure 6-27. Insert Location
93
Communications Interface Module Installation
94
Figure 6-28. Communications Interface Installation
94
Table 6-6 Recommended Bolt Torque Values
94
Table 6-7 R-134A Temperature - Pressure Chart
95
Electrical Wiring Schematic
96
Figure 7-1 LEGEND
96
Figure 7-2 SCHEMATIC DIAGRAM
97
Figure 7-3 SCHEMATIC DIAGRAM -- Transfresh and Emergency Bypass
98
Figure 7-4 WIRING DIAGRAM
99
Figure 7-5 SCHEMATIC DIAGRAM, WIRING DIAGRAM-- Electronic Partlow Recorder
101
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