The LHO vacuum team spent the week with Pfeiffer staff to install a new screw pump in the mid-Y mechanical room and a temporary turbo station in the mid-Y VEA, not bolted to tube, but blanked off with pressure gauge. We were able to spin up a turbo, backed by scroll pump, while communicating with a live screw pump in order to demonstrate functionality of controls and logic. We even demonstrated a magnetically levitated bearing touching at 7000 rpm: E1800387

We left all three pumps on over the weekend and the air compressors in chiller yard are running to feed the screw pump purge air kit with 45 psi pressure.