321023
6
11.3.6
Overload/Relay ................................................................................................................84
11.3.7
Condenser Removal ........................................................................................................85
11.4
Bottom of Cabinet ...................................................................................................................85
11.4.1
Front Levelling Rollers .....................................................................................................85
11.4.2
Rear Levelling Rollers......................................................................................................85
11.5
Cabinet Doors.........................................................................................................................85
11.5.1
Door Gaskets...................................................................................................................85
11.5.2
Dispenser Façade............................................................................................................85
11.5.3
Dispenser Ice Chute Door ...............................................................................................86
11.5.4
Dispenser Light Socket....................................................................................................86
11.5.5
Dispenser D/C Solenoid ..................................................................................................86
11.5.6
Dispenser Water Tube.....................................................................................................86
12
SEALED SYSTEM DIAGNOSIS ..............................................................................87
12.1
Symptoms of an Overcharge ..................................................................................................87
12.2
Symptoms of Refrigeration Shortage......................................................................................87
12.3
Symptoms of a Restriction......................................................................................................88
12.4
Symptoms of Air in System.....................................................................................................90
12.5
Symptoms of Low or High Ambient Temperature Installation.................................................90
13
SEALED SYSTEM SERVICE PROCEDURES ........................................................92
13.1
Service Equipment..................................................................................................................92
13.2
Drier Replacement..................................................................................................................92
13.3
Refrigerant Precautions ..........................................................................................................94
13.4
Line Piercing Valves ...............................................................................................................94
13.5
Open Lines .............................................................................................................................94
13.6
Compressor Operational Test.................................................................................................94
13.7
Dehydrating Sealed Refrigeration System..............................................................................95
13.8
Leak Testing ...........................................................................................................................95
13.8.1
Testing Systems Containing a Refrigerant Charge .........................................................95
13.8.2
Testing Systems Containing No Refrigerant Charge.......................................................95
13.9
Restrictions .............................................................................................................................97
13.9.1
Symptoms........................................................................................................................97
13.9.2
Testing for Restrictions ....................................................................................................97
13.10
Evacuation and Charging .......................................................................................................98
13.10.1
Evacuation .......................................................................................................................98
13.10.2
Charging ........................................................................................................................100
13.10.3
Refrigerant Charge ........................................................................................................100
13.10.4
HFC134a Service Information .......................................................................................100
13.10.5
Health, Safety, and Handling .........................................................................................101
13.11
Replacement Service Compressor .......................................................................................103
13.11.1
Compressor Testing Procedures ...................................................................................103
13.12
Brazing 103
14
WIRING DIAGRAMS ..............................................................................................104
14.1
Wiring Schematic (RX256DT7X1) ........................................................................................104
14.2
Wiring Diagram (RX256DT7X1) ...........................................................................................105
14.3
Wiring Schematic (RX256DT4X1, RX256ET2B1, RX256ET2W1) ........................................106
14.4
Wiring Diagram (RX256DT4X1, RX256ET2B1, RX256ET2W1) ..........................................107
Summary of Contents for RX256DT4X1
Page 11: ...321023 11 2 3 Refrigerant Flow...
Page 12: ...321023 12 2 4 Cabinet Air Flow...
Page 13: ...321023 13 2 5 Ice And Water Dispenser Diagram...
Page 14: ...321023 14 2 6 Water Valve Diagram...
Page 15: ...321023 15 2 7 Typical External Sweat Pattern...
Page 16: ...321023 16 3 INSTALLATION...
Page 17: ...321023 17...
Page 18: ...321023 18...
Page 76: ...321023 76 Ice Water Dispensing Board...
Page 78: ...321023 78 Mid Electronic Specification Control RX256DT4X1 RX256ET2B1 RX256ET2W1...
Page 104: ...321023 104 14 WIRING DIAGRAMS 14 1 Wiring Schematic RX256DT7X1...
Page 105: ...321023 105 14 2 Wiring Diagram RX256DT7X1...
Page 106: ...321023 106 14 3 Wiring Schematic RX256DT4X1 RX256ET2B1 RX256ET2W1...
Page 107: ...321023 107 14 4 Wiring Diagram RX256DT4X1 RX256ET2B1 RX256ET2W1...
Page 108: ...321023 108 NOTES...
