We’ve got a comment for a hotel project that “secondary HVAC systems should be specified in the Baseline building if any of the exception(s) from G3.1.1 are applicable. The non-residential portion of the building appears to be greater than 20,000 square feet and some of the areas of the building are on a different schedule than the hotel.”
In that case, where the project may fall under case (a) of G3.1.1, which system type should the additional system types for non-predominant conditions conform to? Thank you!
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5912 thumbs up
January 16, 2017 - 10:32 am
Subtract the residential area (hotel) from the total area. Use the remaining area to reenter Table G3.1.1A.
Charalampos Giannikopoulos
Senior Sustainability ConsultantDCarbon
84 thumbs up
January 25, 2017 - 8:43 am
Thank you Marcus. However, our hotel building consists of 12 floors (in total, including the residential uses) and apparently non-residential spaces are less that 25,000 sf. (including three different types - mechanical, offices, restaurants). According to table G3.1.1A should we select our additional system based on area only or consider the amount of floors as well? On the one hand we should use System 4 (which would make sense) and on the on the other we should use System 8 which is very complicated for spaces of insignificant size.
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5912 thumbs up
January 25, 2017 - 9:32 am
If you subtract off the residential floors then how many are left?
Charalampos Giannikopoulos
Senior Sustainability ConsultantDCarbon
84 thumbs up
January 25, 2017 - 9:43 am
4 floors are left!
Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5912 thumbs up
January 25, 2017 - 10:51 am
So it looks like a system #6.
Charalampos Giannikopoulos
Senior Sustainability ConsultantDCarbon
84 thumbs up
February 2, 2017 - 5:34 am
Thanks Marcus!