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Remote Evaporator Refrigeration Service Operations
125
Liquid Return Valve
Replacement
Removal
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Remove the access panels.
3. Unsolder the lines and remove the check
valve.
NOTE: Disassemble the valve before
unsoldering.
Installation
1. Clean the tubes for soldering.
2. Place the disassembled check valve in
position. The arrow on the valve body
indicates the direction of refrigerant flow
through the valve.
3. Solder the inlet and outlet connections. After
the valve cools, reassemble the valve.
4. Pressurize the low side and test for leaks.
5. If no leaks are found, evacuate the low side.
6. Install the access panels.
7. Open the refrigeration valves and run the unit.
Check the refrigerant charge and compressor
oil.
Heat Exchanger
Removal
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Remove the access panels.
3. Remove the mounting hardware used to
mount heat exchanger to the panel.
4. Unsolder the refrigeration lines from the heat
exchanger ports and remove it from the unit.
Installation
1. Clean the tubes for soldering.
2. Position the tubes in the proper ports on the
heat exchanger.
3. Reinstall the mounting hardware used to
mount heat exchanger to the panel.
4. Solder the refrigeration lines from the heat
exchanger ports to the tubes.
5. Pressurize the refrigeration system and test for
leaks.
6. If no leaks are found, evacuate the low side.
7. Install the access panels.
8. Open the refrigeration valves and run the unit.
Check the refrigerant charge and compressor
oil. Add as required.
CAUTION: Use a heat sink to prevent
damage to nearby valves.
CAUTION: Use a heat sink to prevent
damage to nearby valves.
Содержание Spectrum DE 30-2
Страница 4: ...4...
Страница 12: ...Safety Precautions 12...
Страница 16: ...Specifications 16...
Страница 31: ...Unit Description 31 1 Access Panels 2 Defrost Dampers Figure 12 Back View of Unit 1 2 AGA215...
Страница 42: ...Operating Instructions 42...
Страница 48: ...Electrical Maintenance 48...
Страница 106: ...Structural Maintenance 106...
Страница 110: ...Mechanical Diagnosis 110...
Страница 114: ...Remote Evaporator Specifications 114...
Страница 116: ...Remote Evaporator Maintenance Inspection Schedule 116...
Страница 122: ...Remote Evaporator Electrical Maintenance 122...
Страница 126: ...Remote Evaporator Refrigeration Service Operations 126...
Страница 128: ...Remote Evaporator Structural Maintenance 128...
Страница 130: ...Remote Evaporator System Diagnosis 130...
Страница 134: ...Wiring and Schematic Diagrams Index 134...
Страница 135: ...135 Schematic Diagram Page 1 of 2...
Страница 136: ...136 Schematic Diagram Page 2 of 2...
Страница 137: ...137 Wiring Diagram Page 1 of 4...
Страница 138: ...138 Wiring Diagram Page 2 of 4...
Страница 139: ...139 Wiring Diagram Page 3 of 4...
Страница 140: ...140 Wiring Diagram Page 4 of 4...