ASHRAE 90.1 appendix G - VAV modelisation in baseline system 7

Julien Daclin

Head of Sustainability

Deerns France

LEEDuser Basic Member

24 thumbs up

December 11, 2012

Hi, I have a question about the interpretation of section G3.1.3.13 (VAV minimum flow setpoints). The G3.1.3.13 section states that the minimum volume setpoint for VAV reheat boxes shall be 2.15 l/s.m² (or 0.4 CFM/ft² in the IP edition). This minimum airflow concerns : - 100% outside fresh air - or could it include the minimum of outside air required by regulation with a recycling air complement? Many thanks by advance for your responses.

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Marcus Sheffer

LEED Fellow

7group / Energy Opportunities

LEEDuser Expert

4454 thumbs up

Wed, 12/12/2012 - 15:36

The full sentence is to use the value you mention or the minimum ventialtion rate, whichever is larger. Ventilation rate refers to the outside air, not included any recycled component.