Name: Carrier 69NT40-561-019
Brand: Carrier
Rating: 5 (1 reviews)

Default Chapter6

Table of Contents6

Section Layout87
Manifold Gauge Set87
Figure 7.1 Manifold Gauge Set87
Refrigeration System Service-Units with Standard Piping88
- Service Connections88
- Figure 7.2 R-134A Manifold Gauge/Hose Set88
- Figure 7.3 Service Valve89
- Pumping down the Unit90
- Refrigerant Leak Checking90
- Evacuation and Dehydration91
- Figure 7.4 Refrigeration System Service Connections91
- Refrigerant Charge92
Compressor93
- Removal and Replacement of Compressor94
- Figure 7.5 Compressor Kit95
High Pressure Switch96
- Checking High Pressure Switch96
- Figure 7.6 High Pressure Switch Testing96
- Replacing High Pressure Switch97
Condenser Coil97
Condenser Fan and Motor Assembly97
Filter Drier98
Evaporator Coil and Heater Assembly98
- Evaporator Coil Replacement98
- Evaporator 5+1 Heater Removal and Replacement98
7.10 Evaporator Fan and Motor Assembly99
- Figure 7.7 Heater Arrangement - Omega Heater99
- Assemble the Evaporator Fan Assembly100
- Disassemble the Evaporator Fan Assembly100
- Replacing the Evaporator Fan Assembly100
7.11 Evaporator Section Cleaning101
Figure 7.8 Evaporator Fan Assembly101
7.12 Electronic Expansion Valve102
- Replacing Electronic Expansion Valve and Strainer103
7.13 Economizer Expansion Valve103
- Figure 7.9 Electronic Expansion Valve103
- Figure 7.10 Economizer Expansion Valve104
- Valve Replacement104
7.14 Economizer Solenoid Valve105
Figure 7.11 Coil View of Economizer Solenoid Valve (ESV)105
7.15 Digital Unloader Valve106
Figure 7.12 Digital Unloader Valve (DUV) Assembly106
7.16 Valve Override Controls107
Table 7-1 Valve Override Control Displays107
7.17 Controller108
- Handling Modules108
- Controller Troubleshooting108
- Controller Programming Procedure109
- Figure 7.13 Controller Section of the Control Box109
- Removing and Installing a Control Module111
- Battery Replacement111
7.18 Vent Position Sensor Service112
7.19 Temperature Sensor Service112
- Sensor Checkout Procedure113
- Table 7-2 Sensor Resistance114
- Table 7-3 Sensor Resistance (CPDS)115
- Sensor Replacement116
- Figure 7.14 Sensor Types116
- Figure 7.15 Sensor and Cable Splice116
- Sensor Re-Installation117
- Figure 7.16 Supply Sensor Positioning118
- Figure 7.17 Return Sensor Positioning118
- Figure 7.18 Evaporator Temperature Sensor Positioning118
Electronic Partlow Temperature Recorder (if Equipped)119
- Figure 7.19 Compressor Discharge Temperature Sensor119
- Figure 7.20 Electronic Partlow Temperature Recorder120
- Re-Zeroing the Recording Thermometer120
- Replacing the Recorder120
7.21 Maintenance of Painted Surfaces121
7.22 Communications Interface Module Installation121
Figure 7.21 Communications Interface Installation121
Table 7-4 Recommended Bolt Torque Values (Dry, Non-Lubricated for 18-8 Stainless Steel)122
Table 7-5 R-134A Temperature - Pressure Chart123

Electrical Wiring Schematics125

Index131

Brand	Carrier
Model	69NT40-561-019
Category	Refrigerator
Language	English

Carrier 69NT40-561-019 User Manual

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