Sunbeam 20060328, Руководство по обслуживанию

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EVACUATION AND RELOAD
Equipment required:
1. Dial-A-Charge heater load cylinder.
2. Recovery / recycling equipment and tank.
3. Vacuum external pump.
4. Stopper tool able to produce closure in leakage test.
5. Process adapter equipment (Robinair No. 12458).
6. Complete Presto-O-Lite torch.
7. Loss detector.
8. Tube cutter.
9. Three side small file.
10. Emeril cloth or “Scotch Brite”.
11. Welding with welding compound.
12. Manometer equipment and multiple tube.
Evacuation and reload equipment installation
1. Disconnect the electric current unit.
2. Fix an approved self - threaded line extraction valve to the process tube.
Connect the refrigerant recovery system
to the valve. Run the recovery system, open the line extraction valve and allow the refrigerant pass to an approved
tank.
3. If the compressor was replaced, install an adequate size process tube adapter in the process tube. If the compressor
was not replaced, cut the process tube with a tube cutter, leaving as much tube as possible, though removing the line
extraction valve installed to take away the refrigerant. Install the right size process tube adapter.
4. Put the refrigeration service manometer multiple in the system, in the following manner (See figure C9)
Figure C9. Installation of evacuation and reload equipment
a. Low side hose (compound manometer) to the process tube adapter of the suction side.
b. High side hose (pressure manometer) to the vacuum pump.
c. Central hose from multiple to cylinder loader.
How to evacuate the system
1. Making sure the cylinder loader valve is closed, run the vacuum pump. Open both multiple valves slowly against the
clock hand direction, two complete turns.
PAGE. C10
LOADER CYLINDER MANOMETER
INDICATOR
HEATING LOADER CYLINDER
LOW SIDE
COMPRESSOR
HIGH SIDE
LOW SIDE
PROCESS TUBE
PROCESS TUBE
ADAPTER
VACUUM PUMP
PRESSURE MANOMETER