This morning there was a blockage to the 2 mode cleaner chillers for "low gas circuit pressure", and it was probably caused by the presence of fresh wind that hit the heat exchange batteries, characteristic of this half season when they occur. day-night temperature differences. Thanks also to the collaboration of the Operator in turn F.Nenci, who, in telephone contact with me, restarted the refrigeration unit, greatly limiting the downtime, the temperature in the Hall_MC has not reached such levels as to cause the lock to be lost .