102
TK 61555-2-MM-EN
Installation
1.
Clean the tubes for soldering.
2.
Place the heat exchanger assembly in the evaporator housing and install the mounting
hardware loosely.
3.
Solder the liquid inlet and the suction outlet line connections on the curbside of the
evaporator. Seal the openings through the bulkhead with putty when the refrigerant lines
have cooled off.
4.
Solder the suction line connection to the evaporator coil.
5.
Solder the equalizer line to the suction line and the liquid outlet line to the expansion valve.
6.
Tighten the heat exchanger mounting hardware securely.
7.
Pressurize the low side and test for leaks. If no leaks are found, evacuate the low side.
8.
Replace Drier
9.
Clean the suction tube to a brightly 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 insulating tape.
10. Replace the evaporator access panels.
11. Open the refrigeration valves and place the unit in operation.
12. Check refrigerant charge and compressor oil level
Evaporator Coil Assembly
Removal
1. Pump down the low side and equalize the pressure to slightly positive.
2. Remove the evaporator access panels.
3. Remove the sensors.
4. Remove the heat exchanger mounting hardware.
5. Remove the feeler bulb from the suction line clamp. Note the position of the feeler bulb on
the suction line.
6. Unsolder the distributor from the expansion valve.
7. Unsolder the hot gas line and the suction line from the evaporator coil.
8. Disconnect the electric heaters and high temperature cutout switch (model 50 units).
9. Remove the mounting bolts and remove the coil from the evaporator housing.
Installation
1. Place the evaporator coil assembly in position and install the mounting bolts.
2. Solder the hot gas line and suction line connections to the evaporator coil.
3. Solder the distributor to the expansion valve assembly.
4. Reinstall the heat exchanger mounting hardware.
5. Reinstall the sensors.
6. Replace Drier
7. Pressurize 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 on the side of the
suction line in its former position. The feeler bulb must make good contact with the suction
line or its operation will be faulty. Wrap with insulating tape.
9. Pressurize the low side and test for leaks. If no leaks are found, evacuate the low side.
10. Install the high temperature cutout switch and electric heaters (Model 50 units)
11. Reinstall the evaporator access panels.
