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You need 350 to 400 cfm per ton (12,000 btu) of cooling. So, divide your cfm by 400. For example, a 1200 cfm blower on an air handler could handler up to 3 tons. All calculations depend on your duct being the proper size for the equipment.
cfm=.32X(aXb)Xface velocity/144 a= width b=length
There are 400 cfm in 1 ton
Take the number of cubic feet and divide that by the number of minutes. cfm=cf/m
RSH=240000 RLH=70000 DB room=76f rh r=50% bf=10% ts coil=? v=?cfm use gaseous cooler