is the only way to remove the air on a r123 yt to use a portable purge ? By warming the evap from hot water heater in mech rm the leaks I have found a,oil around comp equalizer line solenoid and 3 way purge solenoid. Suction elbow shaft seal and rupture disk were changed a year ago. Customer doesnot wantto pay york to overhaul machine which it probably needs since it sat for 2 years not running with only 200 pounds of r123. Machine is full off air. Since the purge only runs when comp runs I dont thing it will get this air out. Customer just wants machine running, they refuse to have gas pulled and pressure test. They want my boss to buy a portable purge. This customer really sucks.I was told another tech had fixed leaks and added 400 lbs a year or so ago but machine has just sat airbound since when maint guys runns it it goes of on evap pressure transducer. Customer just wants bandaids. They want me to purge air into a recovery cylinder ? This machine I thinks needs more work then I know how to do, have a boss and customer just wanting a bandaid, dont have a portable purge, machine sat for 2 years due to customer being cheap and not paying york to repair it. What the F.