I wonder what GBCI considers to be "recirculated air"?
The language in the April 2021 v4.1 BD+C reference guide states "each ventilation system that suppies air to occupied spaces must have particle filters or air-cleaning devices that meet .... filtration requirements."
Curious if the following will be enforced to comply:
Fan-Powered VAVs that recirculate plenum air into the occupied space.
Ductless split systems.
Air curtains at loading dock doors.
Destratification fans, desktop plug-in fans, hand dryers in restrooms.
ALL units serving 'unoccupied' spaces.
Farooq Saeed
HVAC DESIGN ENGINEERCDC | Consulting and Design Consortium (Pvt) Ltd
17 thumbs up
March 28, 2024 - 5:38 am
Hi Dave,
the wording indicates, it is for VENTILATION system, outdoor air to occupied spaces, not for the recirculation cooling, both must have different filtr types and Filtration stages.