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vishnu3495
11-06-2014, 10:38 AM
Wat are the different velocity ratings followed in Velocity reduction methods, for Maint ducts, Branch ducts, Collars. Return Air Duct. Exhaust ducts. Fresh Air ducts.

nevinjohn
19-06-2014, 12:19 PM
You can refer the "Recommeded velocities" - Table 7 - Part 2 (Air Distribution) of the System Design Manual by Carrier, or refer ASHRAE recommended.