...
2. After the FMR has stabilized, set the Liquefier A/B to "Manual + Idle", open SV501A/B (inlet valve), and set FC501A/BQM (see the box on the left of FC501A/B) at 45 SLM.
Ensure the outlet valve SVNA/B is closed and the cold heads of the Liquefier are off.
...