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Please give tell me standard of diffuser size and CFM we can use for design of air conditioning system and also return air grill size and cfm range .?

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Question added by Imtiyaz Ahmed Kodai Ansari , Mep Draughtsman , KHARAFI NATIONAL KSC KUWAIT
Date Posted: 2017/02/02
Mohammad Ahmad Itbaisheh
by Mohammad Ahmad Itbaisheh , Project Manager Mechanical , KAMCO

the best selection method of diffuser size is the manufacturer catalogue, based on the noise level set by the designer you can get the FPM of a specific size of grill or diffuser, once you have the FPM and grill area its easy to get the CFM (FPM*Ft square)

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