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69NT40-511-1
Carrier 69NT40-511-1 User Manual
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Models
69NT40
-
51
1
-
1
to
69NT40
-
51
1
-
199
and
69NT40
-
521
T
-268
Rev
G
Containe
r
Refrigeratio
n
Unit
DUE
TO
T
HE
LARGE
NUMBE
R
OF
S
CHEMA
TI
C
DIAGRAM
S
CONT
AI
NED
IN
THIS
BOOK,
THE
BOO
K
IS
PRESEN
TED
AS
TWO
FILES.
REFE
R
TO
FIL
E
T268
-
-
DI
AGRAMS
FOR
THE
CHAPT
ER
7
E
LECT
RICAL
DIAGRAM
S
AND
SCHE
MA
TICS
2
Table of Contents
Table of Contents
6
Section Page
7
Table 1-1 Model Chart
12
Thermostatic Expansion Valve
22
Parts
22
Figure 2-2 Refrigeration Unit -- Rear (Panels Removed)
22
Figure 2-3 Compressor Section
23
Figure 2-4 Condenser Section
24
Figure 2-5 Units with Receiver
25
Figure 2-6 Units with Water-Cooled Condenser
26
Figure 2-7 Control Box on Units with a Single-Speed Compressor
27
Figure 3-1 Key Pad
27
Figure 3-2 Display Module
27
Controller/Datacorder
28
Figure 2-8 Control Box on Units with a Two-Speed Compressor (Optional)
28
System Data
29
Figure 2-9 Power Autotransformer (Optional)
31
Figure 2-10 Refrigeration Circuit with Receiver
34
Figure 2-11 Refrigeration Circuit with Water-Cooled Condenser (Optional)
36
Table 2-1 Safety and Protective Devices
38
Brief Description
39
Figure 3-1 Micro-Link 2I Controller/Datacorder Module
39
Table 3-1 Controller Configuration Variables
41
Table 3-2 Key Pad Function
42
Table 3-3 Controller Function Code Assignments
44
Display Only Functions
46
Controller Alarms
48
Table 3-4 Controller Alarm Indications
49
Pre-Trip
56
Table 3-5 Pre-Trip Test Codes
57
Datacorder Configuration
63
Datacorder Function Codes
64
Table 3-6 Datacorder Function Code Assignments
64
Datacorder Alarms
65
Table 3-7 Datacorder Alarm Indications
66
Access to Datacorder Functions
67
Table 3-8 Datacorder Alarm Configurations
67
Table 3-9 Datacorder Standard Configuration
68
Datacorder Communications
69
Pre-Trip Data Recording
69
USDA Recording
69
USDA/ Message Trip Comment
69
Datacorder Scrollback
70
Usda Cold Treatment Procedure
70
Table 3-10 Datacorder Pre-Trip Data
71
Figure 3-3 Standard Configuration Report Sample
72
Figure 3-4 Controller Set Point below --10_C (+14_F), or --5_C (+23_F) Optionally
73
Figure 3-5 Controller Set Point above --10_C (+14_F), or --5_C (+23_F) Optionally
73
Figure 3-6 Two-Speed Compressor Speed Change Logic -- Perishable Range Only
74
Figure 3-7 Two-Speed Compressor Speed Change Logic -- Frozen Range Only
75
Operation
76
PRE-TRIP INSPECTION (before Starting)
76
Starting and Stopping Instructions
77
After Starting Inspection
77
Unit Operation
77
Crankcase Heater
77
Probe Check Initiation
77
Cooling -- Controller Set below --10_C (+14_F), or --5_C (+23_F) Optionally
78
Controller Set above --10_C (+14_F), or --5_C (+23_F) Optionally
78
Figure 4-1 Cooling in High Speed with Two-Speed Compressor
80
Figure 4-2 Cooling in Low Speed with Two-Speed Compressor
82
Figure 4-3 Cooling with Single-Speed Compressor
84
Heating (See Figure 4-4.)
85
Figure 4-4 Heating Mode
86
Defrost
87
Arctic
87
Table 4-1. Electrical Control Positions - - below - -10_C (+14_F), or - -5_C (+23_F) Optionally
89
Table 4-2. Electrical Control Positions - - above - -10_C (+14_F), or - -5_C (+23_F) Optionally
90
Troubleshooting
91
Unit will Not Start or Starts then Stops
91
Unit Runs but Has Insufficient Cooling
91
Unit Operates Long or Continuously in Cooling
91
Unit will Not Heat or Has Insufficient Heating
92
Unit will Not Terminate Heating
92
Unit will Not Defrost Properly
92
Figure 4-5 Defrost
92
Abnormal Pressures (Cooling)
93
Abnormal Noise or Vibrations
93
Temperature Controller Malfunction
93
No Evaporator Air Flow or Restricted Air Flow
93
Thermostatic Expansion Valve Malfunction
94
Power Autotransformer Malfunction
94
Water-Cooled Condenser or Water Pressure Switch
94
Service
95
Figure 6-1 Manifold Gauge Set
95
Figure 6-2 R-134A Manifold Gauge Set Connection
97
Suction and Discharge Service Valves
98
Figure 6-3 Suction or Discharge Service Valve
98
Pumping the Unit down
98
Refrigerant Leak Checking
98
Evacuation and Dehydration
99
General
99
Preparation
99
Procedure
99
Checking the Refrigerant Charge
99
Figure 6-4 Vacuum Pump Connections
101
Model 06Dr Compressor
102
Adding Refrigerant to System (Partial Charge)
102
Refrigerant Charge
99
Compressor -- Model 06Dr
102
Removal and Replacement of Compressor
103
Figure 6-5 Compressor -- Model 06DR
103
Compressor Disassembly
103
Figure 6-6 Exploded View of Valve Plate
104
Figure 6-7 Bottom Plate Removed
104
Figure 6-8 Oil Pump and Bearing Head
105
Figure 6-9 Low Profile Gear Oil Pump
105
Figure 6-10 Motor End Cover
105
Figure 6-11 Crankshaft Assembly
106
Figure 6-12 Removing Equalizing Tube and Lock Screw Assembly
106
Figure 6-13 Terminal Mounting Assembly
106
Figure 6-14 Suction Valve & Positioning Springs
107
Compressor Reassembly
107
Figure 6-15 Piston Rings
107
Compressor Oil Level
108
Figure 6-16 Compressor Oil Pump End View
108
Checking High Pressure Switch
109
Replacing High Pressure Switch
109
Filter-Drier
109
Evaporator Coil and Heater Assembly
110
Evaporator Coil Heaters
110
Evaporator Fan and Motor Assembly
110
Figure 6-18 Evaporator Fan Assembly
111
Evaporator Fan Motor Capacitors
111
Condenser Coil
112
Condenser Fan and Motor Assembly
112
Partlow Recording Thermometer
112
Figure 6-19 Partlow Recording Thermometer
114
Saginomiya Recording Thermometer
114
Maintenance of Painted Surfaces
115
Power Autotransformer (Optional)
115
Sensor Checkout Procedure (Ambs, Dts, Rrs, Rts, Srs & Sts)
115
Checking Sensor (RRS, RTS, SRS or STS)
115
Figure 6-20 Saginomiya Recording Thermometer
115
Replacing Sensor (STS and SRS)
116
Figure 6-21 Supply Sensor Positioning
116
Replacing Sensor (RRS and RTS)
117
Figure 6-22 Sensor (RRS, RTS, SRS or STS)
117
Figure 6-23 Sensor and Cable Assembly (RRS, RTS, SRS or STS)
117
Checking Sensor (AMBS or DTS)
118
Replacing Sensor (AMBS or DTS)
118
Figure 6-24 Return Sensor Positioning
118
Figure 6-25 Sensor (AMBS or DTS)
118
Figure 6-26 Sensor and Wire Assembly (AMBS or DTS)
118
Figure 6-27 Suction Solenoid Valve (SSV) -- Alco
119
Suction Solenoid Valve (Ssv)
119
Suction Modulation Valve (Smv)
119
Figure 6-28 Suction Modulation Valve (SMV)
120
Figure 6-29 Thermostatic Expansion Valve -- Alco
121
Figure 6-30 Thermostatic Expansion Valve Bulb
121
Figure 6-31 Controller Side of the Control Box
122
Controller Trouble-Shooting
123
Controller/Datacorder Programming Procedure
123
Water-Cooled Condenser
124
Figure 6-32 Water-Cooled Condenser Cleaning -- Forced Circulation
125
Figure 6-33 Water-Cooled Condenser Cleaning -- Gravity Circulation
126
Table 6-1 AMBS, DTS, RRS, RTS, SRS and STS Temperature-Resistance Chart
126
Table 6-3 Recommended Bolt Torque Values
127
Table 6-4 Wear Limits for Compressors
127
Table 6-5 Compressor Torque Values
128
Table 6-6 Temperature-Pressure Chart -- R-134A
129
Figure 6-34 R-134A Compressor Pressure and Motor Current Curves Versus Ambient Temperature
131
Electrical Wiring Schematic and Diagrams
132
Introduction
132
Index
133
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Operation And Service
139 pages
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Carrier 69NT40-511-1 Specifications
General
Brand
Carrier
Model
69NT40-511-1
Category
Refrigerator
Language
English
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