Carrier 69NT40-541-508 Manuals

Manuals and User Guides for Carrier 69NT40-541-508. We have 1 Carrier 69NT40-541-508 manual available for free PDF download: Operation And Service Manual

Carrier 69NT40-541-508 Operation And Service Manual (143 pages)

Brand: Carrier | Category: Refrigerator | Size: 9 MB

Table of Contents
6
Description
21
General Description
21
Refrigeration Unit − Front Section
21
Fresh Air Makeup Vent
21
Figure 3.1 Refrigeration Unit - Front Section
21
Evaporator Section
22
Figure 3.2 Evaporator Section - Units with Center Access Panel
22
Compressor Section
23
Figure 3.3 Compressor Section
23
Air-Cooled Condenser Section
24
Figure 3.4 Condenser Section
24
Control Box Section
25
Communications Interface Module (Option)
25
Figure 3.5 Control Box Section
25
Refrigeration System Data
26
Electrical Data
27
Safety and Protective Devices
28
Table 3-1 Safety and Protective Devices
28
Refrigeration Circuit
29
Figure 3.6 Refrigeration Circuit Schematic
30
Microprocessor
31
Temperature Control Microprocessor System
31
Keypad
31
Display Module
31
Figure 4.1 Temperature Control System
31
Figure 4.2 Keypad
32
Table 4-1 Keypad Function
32
Controller
33
Controller Software
33
Configuration Software (Cnf Variables)
33
Figure 4.3 Display Module
33
Figure 4.4 Control Module
33
Operational Software (CD Function Codes)
34
Modes of Operation
34
Perishable Mode Temperature Control
34
Perishable Pulldown
34
Perishable Steady State
34
Perishable Idle, Air Circulation
34
Perishable Heating
34
Perishable Mode Dehumidification
35
Figure 4.5 Controller Operation - Perishable Mode
35
Perishable, Dehumidification − Bulb Mode
36
Perishable Economy
36
Perishable Mode Cooling − Sequence of Operation
36
Figure 4.6 Perishable Mode Cooling
36
Perishable Mode Heating − Sequence of Operation
37
Frozen Mode - Temperature Control
37
Frozen Steady State
37
Figure 4.7 Perishable Mode Heating
37
Frozen Idle Mode
38
Frozen "Heat" Mode
38
Frozen Economy Mode
38
Figure 4.8 Controller Operation - Frozen Mode
38
Frozen Mode Cooling − Sequence of Operation
39
Defrost
39
Defrost Operation
39
Figure 4.9 Frozen Mode
39
Figure 4.10 Defrost
40
Defrost Related Settings
41
Protection Modes of Operation
41
Evaporator Fan Operation
41
Failure Action
41
Generator Protection
41
Condenser Pressure Control
41
Quest − Ccpc
41
Controller Alarms
42
Pre−Trip Diagnostics
42
Datacorder
43
Datacorder Software
43
Sensor Configuration (Dcf02)
44
Logging Interval (Dcf03)
44
Thermistor Format (Dcf04)
44
Table 4-2 Data CORDER Configuration Variables
44
Figure 4.11 Standard Configuration Report
45
Sampling Type (Dcf05 & Dcf06)
46
Alarm Configuration (Dcf07 − Dcf10)
46
Datacorder Power-Up
46
Pre-Trip Data Recording
46
Datacorder Communications
46
Table 4-3 Data CORDER Standard Configurations
46
USDA Cold Treatment
47
Datacorder Alarms
48
ISO Trip Header
48
Controller Configuration Variables
49
Table 4-4 Controller Configuration Variables
49
4.10 Controller Function Codes
51
Table 4-5 Controller Function Codes
51
Figure 4.12 Alarm Troubleshooting Sequence
60
4.11 Controller Alarm Indications
61
Table 4-6 Controller Alarm Indications
70
4.12 Controller Pre-Trip Test Codes
71
Table 4-7 Controller Pre-Trip Test Codes
71
Table 4-8 Datacorder Function Code Assignments
77
Table 4-9 Datacorder Pre-Trip Result Records
78
Table 4-10 Datacorder Alarm Indications
79
Operation
81
Inspection (before Loading)
81
Connect Power
81
Connection to 380/460 VAC Power
81
Connection to 190/230VAC Power (Option)
81
Adjust Fresh Air Makeup Vent
81
Figure 5.1 Autotransformer
81
Upper Fresh Air Makeup Vent
82
Vent Position Sensor
82
Connect Remote Monitoring Receptacle
82
Starting and Stopping Instructions
82
Figure 5.2 Make up Air Flow Chart
82
Starting the Unit
83
Stopping the Unit
83
Start−Up Inspection
83
Physical Inspection
83
Check Controller Function Codes
83
Start Temperature Recorder
83
Complete Inspection
83
Pre-Trip Diagnostics
83
Probe Diagnostics
84
Emergency Bypass Operation (Option)
85
Troubleshooting
87
Unit will Not Start or Starts then Stops
87
Unit Operates Long or Continuously Long in Cooling
87
Unit Runs Bu Has Insufficient Cooling
88
Unit will Not Heat or Has Insufficient Heating
88
Unit will Not Terminate Heating
88
Unit will Not Defrost Properly
89
Abnormal Pressures (Cooling)
89
Abnormal Noise or Vibrations
90
Figure 7.1 Manifold Gauge Set
93
Figure 7.2 R-134A Manifold Gauge/Hose Set
94
Figure 7.3 Service Valve
94
Figure 7.4 Refrigeration System Service Connections
96
Figure 7.5 Compressor
98
Figure 7.6 Exploded View of Valve Plate
98
Figure 7.7 Bottom Plate Removed
99
Figure 7.8 Oil Pump and Bearing Head
99
Figure 7.9 Low Profile Oil Pump
99
Figure 7.10 Motor End Cover
100
Figure 7.11 Equalizing Tube and Lock Screw Assembly
100
Figure 7.12 Crankshaft Assembly
100
Figure 7.13 Suction Valve and Positioning Rings
101
Figure 7.14 Piston Ring
101
Figure 7.15 High Pressure Switch Testing
102
Figure 7.16 Condenser Fan Position
104
Figure 7.17 Heater Arrangement
106
Figure 7.18 Evaporator Fan Locating Dimension
107
Figure 7.19 Evaporator Fan Assembly
107
Figure 7.20 Thermostatic Expansion Valve Bulb
108
Figure 7.21 Thermostatic Expansion Valve
109
Figure 7.22 Hermetic Thermostatic Expansion Valve Bulb Location
109
Figure 7.23 Hermetic Thermostatic Expansion Valve Brazing Procedure
109
Figure 7.24 Suction Modulation Valve (SMV)
110
Table 7-1 Valve Override Control Displays
111
Figure 7.25 Controller Section of the Control Box
113
Table 7-2 Sensor Temperature/Resistance Chart
115
Figure 7.26 Sensor Types
116
Figure 7.27 Sensor and Cable Splice
116
Figure 7.28 Return Sensor Positioning
117
Figure 7.29 Supply Sensor Positioning
117
Figure 7.30 Communications Interface Installation
118
Table 7-3 Recommended Bolt Torque Values (Dry, Non-Lubricated for 18-8 Stainless Steel)
119
Table 7-4 Wear Limits for Compressors
119
Table 7-5 Compressor Torque Values
120
Table 7-6 R-134A Temperature - Pressure Chart
121
Figure 7.31 R-134A Compressor Pressure and Motor Current Curves Vs. Ambient Temperature, Sheet 1
122
Figure 7.32 R-134A Compressor Pressure and Motor Current Curves Vs. Ambient Temperature, Sheet 2
123
Figure 8.1 Single Evaporator Fan Capability and VPS - Legend
127
Figure 8.2 Single Evaporator Fan Capability and VPS - Schematic Diagram
128
Figure 8.3 Single Evaporator Fan Capability and VPS - Unit Wiring Diagram
129
Figure 8.4 Single Evaporator Fan Capability and VPS - Unit Wiring Diagram
130
Figure 8.5 Single Evaporator Fan Capability and Emergency Bypass - Legend
131
Figure 8.6 Single Evaporator Fan Capability and Emergency Bypass - Schematic Diagram
132
Figure 8.7 Single Evaporator Fan Capability and Emergency Bypass - Unit Wiring Diagram
133
Figure 8.8 Single Evaporator Fan Capability and Emergency Bypass - Unit Wiring Diagram
134
Figure 8.9 Single Evaporator Fan Capability, Emergency Bypass and Failsafe - Legend
135
Figure 8.10 Single Evaporator Fan Capability, Emergency Bypass and Failsafe - Schematic Diagram
136
Figure 8.11 Single Evaporator Fan Capability, Emergency Bypass and Failsafe - Unit Wiring Diagram
137
Figure 8.12 Single Evaporator Fan Capability, Emergency Bypass and Failsafe - Unit Wiring Diagram
138

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Carrier 69NT40-541-508 Operation And Service Manual (143 pages)

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