CEILING DIFFUSER SELECTION FROM DATA SHEET II

Linear Slot Diffuser linear slot diffuser cfm chart Here is a quick ballpark estimate using an old slide chart air duct calculator 2 - 8” @ 170 cfm = 340 1- 7” = 120 1- 6” = 85 1- 4” = 50 Total linear slot diffuser installation LINEAR SLOT DIFFUSER 20mm Slot width LINEAR SLOT DIFFUSERS model: ARLD No of slots Table Air flow data CFMm 100 150 200 250 300 350 M³secm

linear slot diffuser with plenum box slots wide and 15 feet long is selected for 1425 cfm of supply air 1425÷15 = 95 cfm per foot From the performance chart, the NC value is 22