Hello,
one of our review comments was that the occupancy values we reported in the ventilation calculations were inconsistent with those reported in other credits. I am confused because the occupancy values used in the ventilation calculations were calculated by the mechanical engineer using occupant density listed on ASHRAE 62.1 and these are being compared to occupancy values (FTE) listed in PIF3 and other credits which are calculated by a different method. It seems logical to me that these values would vary slightly. Can someone tell me what I am missing?
Thank you,
Dan
Jean Marais
b.i.g. Bechtold DesignBuilder Expert832 thumbs up
March 19, 2013 - 9:11 am
62.1 does not dictate the use of default occupancy numbers. If you have other occupancy numbers for the spaces used in other credits, use them also in the 62.1 calcs to be consistant.