Our project building has 5 AHU systems; 4 of them significantly exceed ASHRAE (200%, 130%, 363%, 41%). The building is a laboratory and has very stringent requirements for OA delivery and IAQ. One AHU, however, only exceeds ASHRAE by 16%. This fifth unit is a small split system that only serves the building's gym room, which is not typically occupied and represents a very small percentage of overall building square footage (less than 5% of total building square footage). The unit is incapable of exceeding ASHRAE by 30%. It seems like a stretch but is it possible to use the 10% SF exemption on this credit to exclude the gym, and thus not count the AHU that is disqualifying us from achieving this credit? Thanks!
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Hannah Bronfman
Senior Associate99 thumbs up
February 17, 2014 - 12:04 pm
Hi Alexis
Hmmm, that sounds like a sticky situation and I think your feelings are correct in that it would be difficult to justify the 10% exemption rule. The 10% rule is typically allowed for multi-tenant buildings when the project team doesn't have control over the space. When exempting the space, you have to submit a narrative that details why the space is excluded, including verification that it is separately managed and a description of how the team attempted to require data from this area.
Sorry for the note great news on this front!
Best,
Hannah