Measuring VAV Flow Rate

Bob Blanchard of the Ontario Sheet Metal Workers Training Centre guides you through how to measure VAV flow rate.
This video is part of TAB Technical Manual Training Course for sheet metal workers who want to develop technical HVAC skills. Produced by the Ontario Sheet Metal Workers Training Centre www.osmwtc.com/

[@paulmerritt7540]

Great advice thank you!

[@ACHVACTAB1]

Note: Since the typical flex duct to the box is not nice and straight it's likely your reading will be way off.
Either traverse or the typical method to determine flow is using an airflow hood.

[@shakeebaries]

Can we directly measure velocity if we have a meter in which there is a selection for Wilson Grid