Thermo King T-1000R, Maintenance Manual

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Refrigeration Maintenance 10-40
5. Pressurize the low side and check for leaks.
6. If no leaks are found, replace the liquid line drier then evacuate the low side.
7. Open the refrigeration valves and place the unit in operation.
8. Test the unit to see that the expansion valve is properly installed.
HEAT EXCHANGER REPLACEMENT
It unlikely that the heat exchanger is defective. Carefully review your refrigeration system diagnosis to eliminate all other
system components before proceeding. This replacement procedure should only be attempted by qualified technicians.
Removal
1. Recover the refrigerant charge.
2. Remove the evaporator top panel.
3. Remove the mounting hardware that holds the heat exchanger on the bulkhead.
4. Unsolder the equalizer line from the suction line.
5. Unsolder the liquid line to the expansion valve.
6. Note the position of the feeler bulb on the side of the suction line. Remove the expansion valve feeler bulb from the suction
tube.
7. Unsolder the suction line at the evaporator coil end.
8. Unsolder the remaining outlet suction line and inlet liquid line connections from the condenser side of the bulkhead. Remove
putty from around the lines before unsoldering the connections.
9. Lift the heat exchanger assembly out of the evaporator housing.
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 suction outlet line connections on the condenser side of the bulkhead. Seal openings through
bulkhead with putty when the refrigerant lines have cooled off.
4. Tighten the heat exchanger mounting hardware securely.
5. Solder suction line connection to the evaporator coil.
6. Solder the liquid line to the expansion valve.
7. Solder the equalizer line to the suction line.
8. Pressurize the system and check for leaks.
9. If no leaks are found, replace the liquid line drier then evacuate and dehydrate the system.
10. Clean the suction tube to a bright polished condition. Install the feeler bulb clamps and 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 operation will be faulty. Wrap with
insulating tape.
11. Install the evaporator top panel.
12. Recharge the unit with refrigerant and check the compressor oil.
1. Top View
Completely Wrap Bulb with Tape