253 - DescriptionAir flow of HF540, HF540D and HF640D centrifugal turbinesBlower unit Speed Relationship Turbine diameter Power Air flowm3/h cubic foot/minuteHF540 1st low 1 - 6.6 540 mm 12 Kw 16 HP 8.000 4700TS3 P540 / TS6 P540 2nd high 1 - 7.8 16 Kw 21 10.000 5900HF540D 1st low 1 - 5.7 540 mm 14 Kw 19 11.000 6500TD3-P540 2nd high 1 - 6.6 22 Kw 29 15.000 9000HF640D 1st low 1 - 4.5 640 mm 24 Kw 33 27000 16000TD3-P640 2nd high 1 - 5.7 36 Kw 49 37000 22000Protective gridThe blower units have protective grids fi tted to the air inlets. They areessential for avoiding accidents and preventing small stones, leaves orother foreign bodies from entering the blower unit that could causedamage inside the grid.DANGER! It is strictly forbidden to use the blower unit withoutthe protective grid.DANGER! Do not approach the fan when in use.DANGER! Do not introduce foreign bodies through the grid,regardless of whether the turbine is in use or not.DANGER! During the working day, protect your hearing fromthe noise produced with EN 352-1:1992 approved earmuffs orsimilar.DANGER! In the case of vibrations or knocking, stop the turbineimmediately.
