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69NT20-551-300 TO 399
Carrier 69NT20-551-300 TO 399 Manuals
Manuals and User Guides for Carrier 69NT20-551-300 TO 399. We have
1
Carrier 69NT20-551-300 TO 399 manual available for free PDF download: Operation And Service
Carrier 69NT20-551-300 TO 399 Operation And Service (95 pages)
Container Refrigeration Units
Brand:
Carrier
| Category:
Refrigerator
| Size: 2.06 MB
Table of Contents
Table of Contents
10
Controller
14
Figure 2-1 Refrigeration Unit -- Front Section
15
Figure 2-2 Evaporator Section
16
Figure 2-3 Compressor Section
17
Figure 2-4 Condenser Section
18
Liquid Injection Solenoid Valve (LIV)
18
Figure 2-5 Control Box Section
19
Table 2-1 Safety and Protective Devices
22
Figure 2-6 Refrigeration Circuit Schematic -- Standard Operation
24
Figure 2-7 Refrigeration Circuit Schematic -- Economized Operation
25
Figure 2-8 Refrigeration Circuit Schematic -- Unloaded Operation
25
Figure 3- 1 Temperature Control System
26
Figure 3- 2 Key Pad
27
Table 3-1 Key Pad Function
27
Figure 3- 4 Control Module
28
Table 3-2 Datacorder Configuration Variables
33
Table 3-3 Datacorder Standard Configurations
33
Figure 3- 5 Standard Configuration Download Report
34
Figure 3- 6 Data Reader
35
Table 3-4 Controller Configuration Variables
37
Table 3-5 Controller Function Codes
38
Table 3-6 Controller Alarm Indications
41
Table 3-7 Controller Pre-Trip Test Codes
45
Table 3-7 Controller Pre-Trip Test Codes
46
Table 3-7 Temperature Controller Pre-Trip Test Codes
47
Table 3-7 Controller Pre-Trip Test Codes (Sheet 4 of 4)
48
Table 3-8 Datacorder Function Code Assignments
49
Table 3-9 Datacorder Pre-Trip Result Records
50
Table 3-10 Datacorder Alarm Indications
51
Figure 4-1 Make up Air Flow Chart
52
Figure 4-2 Controller Operation -- Perishable Mode
55
Figure 4-4 Perishable Mode
56
Figure 4-5 Perishable Mode Heating
57
Figure 4-6 Frozen Mode
57
Figure 4-7 Defrost
58
Figure 6-1 Service Valve
64
Figure 6-2 Suction Service Valve
64
Figure 6-3 Manifold Gauge Set
65
Figure 6-4 R-134A Manifold Gauge/Hose Set
65
Figure 6-5. Refrigeration System Service Connections
66
Figure 6-6. Compressor Service Connections
67
Table 6-1 Compressor Kit
68
Figure 6-7 Compressor Upper Mounting
69
Figure 6-8 Compressor Lower Mounting
69
Figure 6-9 High Pressure Switch Testing
70
Figure 6-10 Thermostatic Expansion Valve Bulb
71
Figure 6-11 Evaporator Expansion Valve
72
Figure 6-12 Economizer Expansion Valve
72
Figure 6-13 Hermetic Thermostatic Expansion Valve Brazing Procedure
72
Figure 6-14. Unloader Solenoid Valve
73
Figure 6-15. Oil Return Solenoid Valve (ORV), Economizer Solenoid Valve (ESV)
74
Figure 6-16. Evaporator Fan Assembly
74
Handling Modules
76
Figure 6-17 Suction Modulation Valve (SMV)
76
Controller Trouble-Shooting
77
Controller Programming Procedure
77
Figure 6-18 Controller Section of the Control Box
77
Removing and Installing a Module
78
Temperature Sensor Service
78
Sensor Checkout Procedure
78
Figure 6-19 Sensor Types
78
Sensor Replacement
79
Figure 6-20 Typical Sensor and Cable Splice
79
Table 6-2 Sensor Temperature/Resistance Chart (+/--.002%)
79
Sensor Re--Installation
80
Figure 6-21 Supply Sensor Positioning
80
Figure 6-22 Return Sensor Positioning
80
Electronic Partlow Temperature Recorder
82
Maintenance of Painted Surfaces
82
Composite Control Box Repairs
82
Chips and Holes
83
Door Hinge Inserts
83
Figure 6-24 Door Hinge Repair
83
Table 6-3 Crack, Chip & Hole Repair Kit
84
Table 6-4 Insert Repair Kit
84
Table 6-5 Drill Information
84
Figure 6-25. Insert Location
85
Communications Interface Module Installation
86
Figure 6-26. Communications Interface Installation
86
Table 6-6 Recommended Bolt Torque Values
86
Table 6-7 R-134A Temperature - Pressure Chart
87
Introduction
88
Electrical Wiring Schematics
88
Figure 7-1 LEGEND
88
Figure 7-2 SCHEMATIC DIAGRAM
89
Figure 7-3 SCHEMATIC DIAGRAM, WIRING DIAGRAM-- Electronic Partlow Recorder
90
Figure 7-4 WIRING DIAGRAM
91
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