Purging The Evo-Os - JAVAC EVO-OS User Manual

RESTART EVO-OS, REOPEN the INLET (V1) and run until the required VACUUM
is reached again. Repeat this process until all the refrigerant is removed resulting in a
final reading of 0 Kpa or less.
3.2.8 TERMINATE the RECOVERY operation.
3.2.8.1 CLOSE Manifold Gauge Liquid and Vapor valves.
3.2.8.2 CLOSE EVO-OS's INLET Valve (V1).
3.2.8.3 Switch POWER OFF on the EVO-OS.
3.2.8.4 It is a good practice to purge the EVO-OS after each use. Refer to section 3.3 of
this manual.
3.3

PURGING the EVO-OS

3.3.1 While EVO-OS is running rotate INLET Valve (V1) to CLOSE position.
3.3.2 Rotate PURGE/RECOVERY valve (V2) to PURGE position. Leave DISCHARGE
(V3) open.
3.3.3 Slowly rotate Inlet V1 to PURGE position.
3.3.4 Observe LP Gauge and continue to run the unit until a VACUUM is achieved. Switch
POWER OFF and CLOSE the Recovery Cylinder valve. Return INLET valve (V1)
CLOSE position and close V3.
3.3.5 IMPORTANT – Return V2 to RECOVERY Position
3.3.6 CAUTION - THE DISCHARGE PORT AND HOSE WILL CONTAIN A
SMALL AMOUNT OF REFRIGERANT UNDER PRESSURE. EXERCISE CARE
WHEN REMOVING THIS HOSE AND OPENING V3 VALVE.
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SET-UP PROCEDURE FOR PURGE