INFICON Vortex AC Refrigerant Recovery Machine 230V - Manual (Page 9)

7
Vortex AC Operating Manual
10
Continue to operate until the required VACUUM has been pulled on the
system, as indicated by the LP gauge. Switch OFF the Vortex AC,
CLOSE the INLET (V1), and wait for 5 minutes. If the Pressure in the
system, as noted on the Manifold Gauge, rises above 0 bar, refrigerant
is still present. If this is the case, REOPEN the INLET (V1), RESTART
the Vortex AC, and run until the required VACUUM is reached again.
Repeat this process until all the refrigerant is removed resulting in a
final reading, after the 5 minute period, of 0 bar or less.
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IMMEDIATELY PURGE the Vortex AC per the procedure as described
in
section 3.3 of this Manual.
3.3 PURGING the Vortex AC
1
Rotate the PURGE/RECOVER valve (V2) to the PURGE position. Rotate
valve V3 to OPEN. See
Figure 3-2 .
2
Switch the POWER ON and rotate the INLET valve (V1) slowly to the
PURGE. Prevent flooding the compressor with liquid, do not rotate the
V1 valve quickly.
3
Observe the LP Gauge and continue to run the unit until a VACUUM of
at least -0.6 bar is achieved. Switch the POWER OFF and immediately
CLOSE the Recovery Tank’s valve. The INLET valve (V1) should be
returned to the CLOSE position. Finally close V3.
4
IMPORTANT — RETURN V2 TO RECOVERY POSITION
THE HOSE AND THE DISCHARGE PORT WILL CONTAIN A SMALL
AMOUNT OF REFRIGERANT UNDER PRESSURE. EXERCISE CARE
WHEN REMOVING THIS HOSE AND OPENING THE VALVE V3.
Figure 3-2 Setup Procedure for Purging