Thermo King 920000, Manual

Page: 120 / 190

Refrigeration Service Operations
120
Installation
1. Place the accumulator in the unit.
2. Install the mounting bolts loosely.
3. Solder the refrigerant tubes to the accumulator
tank.
4. Tighten the accumulator tank mounting bolts.
5. Pressurize the low side and test for refrigerant
leaks.
6. If no leaks are found, evacuate the low side.
7. Connect the water hoses and refill the engine
cooling system (see Engine Maintenance).
8. Open the refrigeration valves and place the
unit in operation. Check the refrigerant charge
and the compressor oil and add as required.
Receiver Tank
Removal
1. Remove the refrigerant charge.
2. Unsolder the inlet tube from the receiver tank.
3. Unsolder the drier line from the receiver tank
outlet tube.
4. Unbolt the mounting hardware and remove the
receiver tank from the unit.
Installation
1. Place the receiver tank in the unit and install
the mounting hardware loosely. Position the
receiver tank so the sight glass is clearly
visible and the outlet tube lines up with the
drier line.
2. Solder the inlet tube to the receiver tank.
3. Solder the drier line to the receiver tank outlet
tube.
4. Tighten the receiver tank mounting hardware
securely.
5. Pressurize the refrigeration system and check
for leaks. If no leaks are found, evacuate the
system.
6. Recharge the unit with refrigerant.
Condenser Inlet Check Valve
Repair
Removal
1. Remove the refrigerant charge.
2. Remove the cap nut from the check valve, and
remove the spring and seat.
Installation
1. Inspect the inside of the check valve body for
damage or foreign particles that might adhere
to the seat and damage the new seat. If the
valve body is damaged, replace the check
valve.
2. Install the new seat and spring. Place a new
gasket on the cap and torque it to 45 ft-lb (61
N•m).
3. Pressurize the refrigeration system and test for
leaks.
4. If no leaks are found, evacuate the system.
5. Recharge the unit with the proper refrigerant.
1. Cap 4. Seat
2. Gasket 5. Body
3. Spring
Figure 64: Condenser Inlet Check Valve