Name: Carrier Streamline Scroll 69NT20-531-300
Brand: Carrier
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Default Chapter3

Introduction13

Figure 6-1 Service Valve65
Figure 6-2 Suction Service Valve65
Figure 6-3 Manifold Gauge Set65
Manifold Gauge Set65
Section Layout65
Service Valves65
Figure 6-4 R-134A Manifold Gauge/Hose Set66
Pumping the Unit down66
Evacuation and Dehydration67
- General67
- Preparation67
- Procedure - Complete System67
- Figure 6-5. Refrigeration System Service Connections67
- Procedure - Partial System68
- Figure 6-6. Compressor Service Connections68
Refrigerant Leak Checking67
COMPRESSOR - - Model RSH10569
- Removal and Replacement of Compressor69
- Figure 6-7 Compressor Upper Mounting70
- Figure 6-8 Compressor Lower Mounting70
- Table 6-1 Compressor Kit70
Refrigerant Charge69
- Checking the Refrigerant Charge69
- Adding Refrigerant to System (Full Charge)69
- Adding Refrigerant to System (Partial Charge)69
Compressor Oil Level71
High Pressure Switch71
- Replacing High Pressure Switch71
- Checking High Pressure Switch72
Condenser Coil72
Condenser Fan and Motor Assembly72
Figure 6-9 High Pressure Switch Testing72
Filter-Drier72
Expansion Valves73
- Checking Superheat73
- Valve Replacement73
- Figure 6-10 Thermostatic Expansion Valve Bulb73
- Figure 6-11 Evaporator Expansion Valve73
Assembly74
- Evaporator Coil Replacement74
- Evaporator Heater Replacement74
- Figure 6-12 Hermetic Thermostatic Expansion Valve Brazing Procedure74
- Figure 6-13 Economizer Expansion Valve74
Evaporator Coil and Heater74
Economizer, Unloader, Liquid Injection and Oil Return Solenoid Valve75
Evaporator Fan and Motor Assembly75
- Figure 6-14. Unloader Solenoid Valve75
- Figure 6-15. Oil Return Solenoid Valve (ORV), Economizer Solenoid Valve (ESV)75
- Replacing the Evaporator Fan Assembly76
Evaporator Fan Motor Capacitors76
- When to Check for a Defective Capacitor76
- Removing the Capacitor76
- Checking the Capacitor76
- Figure 6-16. Evaporator Fan Assembly76
Suction Modulation Valve77
- Figure 6-17 Suction Modulation Valve (SMV)77
- Checking the Stepper Valve78
- Precheck Procedure78
Valve Override Controls77
Controller and Expansion Module78
- Handling Modules78
- Controller Trouble-Shooting79
- Figure 6-18 Controller Section of the Control Box79
- Removing and Installing a Module80
Temperature Sensor Service80
- Sensor Checkout Procedure80
- Figure 6-19 Sensor Types80
- Sensor Replacement81
- Figure 6-20 Typical Sensor and Cable Splice81
- Table 6-2 Sensor Temperature/Resistance Chart (+/- -.002%)81
- Sensor Re- -Installation82
Composite Control Box Repairs82
- Introduction82
- Figure 6-21 Supply Sensor Positioning82
- Figure 6-22 Return Sensor Positioning82
- Cracks83
- Inserts83
- Door Hinge Inserts83
- Figure 6-23 Door Hinge Repair83
- Table 6-3 Crack, Chip & Hole Repair Kit84
- Table 6-4 Insert Repair Kit84
- Table 6-5 Drill Information84
- Figure 6-24. Insert Location85
- Figure 6-25. Communications Interface Installation86
- Table 6-6 Recommended Bolt Torque Values86
- Table 6-7 R-134A Temperature - Pressure Chart87
Figure Number82
Maintenance of Painted Surfaces82

Electrical Wiring Schematic88

Carrier Streamline Scroll 69NT20-531-300 User Manual

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Brand	Carrier
Model	Streamline Scroll 69NT20-531-300
Category	Refrigerator
Language	English