Thermo King SB-210, Manual

Page: 116 / 159

Refrigeration Service Operations
116
Accumulator
Removal
1. Pump down the low side and equalize the
pressure to slightly positive.
2. Unsolder the inlet and outlet suction lines
from the accumulator.
3. Disconnect the tee fitting from the
accumulator tank.
4. Unbolt and remove the accumulator from the
unit.
Installation
1. Place the accumulator in the unit and tighten
the mounting bolts and nuts.
2. Solder the inlet and outlet suction lines to the
accumulator.
3. Connect the tee fitting and lines to the
accumulator.
4. Pressurize the low side and test for refrigerant
leaks. If no leaks are found, evacuate the low
side.
5. Open the refrigeration valves and place the
unit in operation. Check the refrigerant charge
and the compressor oil. Add as required.
Three-Way Valve Repair
NOTE: The three-way valve can be repaired in
the unit if leakage or damage to the Teflon seals
should occur. There is usually enough give in
the copper tubing to separate the three sections
of the valve without unsoldering any tubes.
Removal/Disassembly
1. Recover the refrigerant charge.
CAUTION: Use a heat sink or wrap
vibrasorber with wet rags to prevent
damaging the vibrasorber.
CAUTION: Use a heat sink or wrap
vibrasorber with wet rags to prevent
damaging the vibrasorber.
1. Cap 7. Clip
2. End Cap 8. Seat
3. Check Valve 9. Gaskets
4. Spring 10. Stem Assembly
5. Piston 11. Screen
6. Seal 12. Bottom Cap
Figure 100: Three-Way Valve
AEA714