I have a project with non-perimeter group multi-occupant spaces. The Reference Guide notes that they must include 1 airflow control AND 1 temperature control. However, neither the Reference Guide nor CIRs explain what is considered an acceptable airflow control. Can anyone provide clarification?
Can an operable window be considered an airflow control?
What about an exhaust/transfer fan control (on/off or timer switch)?
Can a thermostat linked to a VAV box with reheat coil be considered both an airflow and temperature control? (Reference Guide p403 notes that an underfloor diffuser can be considered both.)
This seems to be a wrinkle unique to this version, while v2009 and US equivalents more generally refer to any thermal comfort controls.
Tristan Roberts
RepresentativeVermont House of Representatives
LEEDuser Expert
11474 thumbs up
November 5, 2013 - 11:17 am
Lindsay, I am only familiar with the LEED v2009, where this would not be an ambiguity.
Aaron Smith
Mechanical EngineerM & R Engineering
1 thumbs up
October 1, 2015 - 9:08 am
I'm a little late chiming in on this but the Reference Guide on Page 400 says "VAV Systems for non-perimeter areas can use a 1:1:2 terminal box to controller to occupant ratio to capture this credit". Typical VAV designs have one VAV box per 600-900 sq. ft and serve 3-4 people so you won't meet the credit with standard design but it is possible if you want to spend the money on additional VAV boxes, controls and ductwork.