Refrigeration Service Operations
11-8
Installation
1. Install and bolt the expansion valve assembly in the unit.
2. Solder (95-5 Solder) the inlet liquid line and the distributor to the expansion valve.
3. Solder (95-5 Solder) the equaliser line to the expansion valve.
4. Clean the suction line to a bright polished condition. Install the feeler bulb clamps and the feeler bulb on the side of the suction
line in its former position. The feeler bulb must make good contact with the suction line or the operation will be faulty. Wrap
with correct insulating material.
NOTE: Do not use oil or grease once the surfaces are clean.
5. Replace Drier
6. Pressurise the low side and test for leaks. If no leaks are found, evacuate the low side.
7. Install evaporator access panels.
8. Open the receiver tank outlet valve. Place the unit in operation.
9. Test the unit to see that the expansion valve is correctly installed.
10. Check refrigerant charge
Evaporator Coil
Removal
1. Pump down the low side and equalise the pressure to 0 psig, (0 bar g).
2. Remove the evaporator access panels.
3. Unsolder the expansion valve from the distributor.
4. Remove thermostat and thermometer sensors.
5. Remove insulating tape and feeler bulb from suction line clamp. Note the position of the feeler bulb on the suction line.
6. Unsolder the suction line and hot gas line from the evaporator coil.
7. Disconnect the electric heaters and high temperature cutout switch (model 50 units).
8. Remove the mounting bolts and remove the coil from the evaporator housing.
Installation
1. Place the evaporator coil in the housing.
2. Install the mounting bolts and tighten.
3. Clean the tubes for soldering.
4. Solder the suction line and hot gas line connections to the evaporator coil.
5. Solder or connect the distributor to the expansion valve assembly.
6. Replace Drier
7. Pressurise the low side and test for leaks. If no leaks are found, evacuate the low side.
8. Clean the suction line to a bright polished condition. Install the feeler bulb clamps and the feeler bulb on the suction line.
Locate the bulb on the side of the suction line in its former position. The feeler bulb must make good contact with the suction
line or the operation will be faulty. Wrap it with correct insulating material.
9. Install thermostat and thermometer sensors. Install the high temperature cutout switch and electric heaters (Model 50 units).
10. Install evaporator access panels.
11. Back seatthe receiver tank outlet valve. Place the unit in operation. Check the refrigerant charge and compressor oil level and
add as required.
Содержание SLXi Spectrum
Страница 17: ...Safety Precautions 2 5 Warning Decals...
Страница 18: ...Safety Precautions 2 6 Warning Decals Information Decals...
Страница 74: ...Unit Description 5 30...
Страница 128: ...Controller Operation 7 28...
Страница 156: ...Electrical Maintenance 8 28...
Страница 177: ...Engine Maintenance 9 21 Integral Fuel Solenoid Components 1 Integral Fuel Solenoid 2 O ring 3 Fuel Injection Pump Groove...
Страница 234: ...Refrigeration Maintenance 10 22...
Страница 309: ...13 Mechanical Diagnosis TK 482 TK 486 and TK 486V Engines 13 2...
Страница 316: ...Mechanical Diagnosis 13 8...
Страница 322: ...Refrigeration System Diagnosis 14 6...
Страница 332: ...Single Temperature Refrigeration System Diagrams 15 10...
Страница 339: ...Multi Temperature Refrigeration System Diagrams 16 7...
Страница 340: ...Multi Temperature Refrigeration System Diagrams 16 8...
Страница 342: ...Wiring Diagrams and Wiring Schematics 17 2...