I TAKE 10 CFM FOR 1 m2 OF FLOOR + 150 CFM FOR EACH DOOR IN THE ROOM.
THIS IS THE OUTDOOR AIR.
YOU MUST ALSO SEAL THE CEILING AND CRACKS WITH SIKA OR SILICONE.
IF YOU HAVE SUCTION AIR FROM THE ROOM ADD IT TO THE FRESH AIR.
ALSO NOTTICE THAT THE DOORS ARE OPENED TO THE ROOM AND NOT OPENED TO THE...
I AM A DESIGHNER HVAC FOR PHRMA AND SEMICONDUCTOR CLEANROOMS.
I HAVE EXPERIENCE OF 7 YEARS ( +3 YEARS OF GENERAL HVAC ) I AM WLWAYS LEARNING NEW THING .
YOU MUST LEARN IT FROM SOMEONE YOU WORK AT HIM .
hi
I'm working in AD cleanrooms / planning and building cleanrooms HVAC + structure.
you have to take some considerations:
1.for class 1000 we are taking 130ach
2.cooling load - normal calculation for HVAC
3. cleanroom usually need to be pressurized . for +25.0 pascal (normal) you need 4000cfm...
