[Equest-users] 90.1-2007; Section G3.1.1 exception d; Laboratory Exhaust
Rick Goeres
RickG at musgrovepa.com
Mon Jun 17 07:19:36 PDT 2013
You can create an exhaust air flow schedule and assign it to the
applicable zone under the outside air/exhaust tab. The schedule would
be 1 for occupied hours and .5 for unoccupied.
Rick Goeres, PE, LEED AP
MUSGROVE ENGINEERING, P.A.
Web: www.musgrovepa.com <http://www.musgrovepa.com/>
234 S. Whisperwood Way, Boise, ID 83709
Ph: 208.384.0585 x324 Fx:208.384.0765
Over 35 Years of Engineering Excellence
From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Jeff
Ross-Bain
Sent: Monday, June 17, 2013 7:59 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] 90.1-2007; Section G3.1.1 exception d;Laboratory
Exhaust
Dear eQuest Experts -
I am working on a model for a laboratory building where the laboratory
exhaust exceeds 5,000 cfm (combined, not for a single space).
ASHRAE 90.1-2007, Section G3.1.1, exception d, states that "for
laboratory spaces with a minimum of 5,000 cfm exhaust, use system type 5
or 7 that reduce the exhaust and makeup air volume to 50% of design
values, during unoccupied periods." This is a requirement for the
Baseline case.
I am using system type 5 but am not too sure how to model this
requirement for flow rates. Does anyone have an insight to this or know
of any specific instructions for meeting this requirement?
As always, thank you for being such a helpful and knowledgeable group.
Regards,
Jeff Ross-Bain, PE, LEED AP BD+C, BEMP
Principal
404-220-8940 Office
404-220-8955 Direct
www.rbgb.com <http://www.rbgb.com/>
Build Green. Save Time
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