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  1. Change the separator flow to 20 SLM (from 7 SLM usually). See this page for instructions → How to control the Separator Return flow
  2. Wait for ~30 mins.
  3. Fully open the gate-valve bypass  (See → How to control the Fridge Return flow (GV and GV Bypass)):
  4. Open Run-valve to 3 turns
  5. Wait until the Ann-Plate Top resistor goes up to 1400 Ohm, which indicates that the liquid started accumulating.
  6. Wait until the nose LHe level reaches 100%.  It usually takes 15 minutes from the previous step.
  7. Wait until the Heat-Ex Bottom resistor goes down from 1400 Ohm and then up
  8. Fully, close the run-valve.
  9. Change the setting of the gate-valve bypass as follows (See → How to control the Fridge Return flow (GV and GV Bypass)):
    1. The set point for the auto control is 600 Torr.
    2. The auto control is enabled.

    10. Set the separator flow to 10slm.

Procedure for Filling the Fridge with LHe

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