I have a 3 story non-residential building, and VAV's on each floor are served by individual air handling units. If i want to use the 62-MZ ASHRAE calculator to document Vot for multiple zone units, would i total up the airflow for all three units and input that amount as Vpsd, then include all zones (in the bldg) in the calculator and submit 1 spreadsheet calc or would i need to have 3 separate Vot spreadsheet calcs. for each system?
Any input would be greatly appreciated.
Thanks