[Equest-users] OA From System Question
Paul Diglio
paul.diglio at sbcglobal.net
Mon Jun 3 08:19:13 PDT 2013
Thanks James. I tried restoring the defaults you suggested, but the ERU hourly
report is still showing only 1/3 of the required primary air for the chilled
beams and it still drops to .01 CFM during the summer.
Paul Diglio, CEM, CBCP
87 Fairmont Avenue
New Haven, CT 06513
203-415-0082
www.pdigliollc.com
________________________________
From: James Hansen <JHANSEN at ghtltd.com>
To: Paul Diglio <paul.diglio at sbcglobal.net>; equest-users at lists.onebuilding.org
Sent: Mon, June 3, 2013 9:23:45 AM
Subject: RE: [Equest-users] OA From System Question
I restored default to the other zonal level OA quantities (OA per person, etc),
and kept the OA CFM in that you had listed, and I'm showing OA CFM for ERU-1.
But I only had a few minutes, so you might want to double check.
GHT Limited
James Hansen, P.E., LEED AP
Senior Associate
1010 N. Glebe Road, Suite 200
Arlington, VA 22201-4749
703-243-1200 (office)
703-338-5754 (cell)
703-276-1376 (fax)
www.ghtltd.com
From:equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of Paul Diglio
Sent: Monday, June 03, 2013 9:11 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] OA From System Question
Morning:
I am trying to model a chilled beam system as induction units. The primary air
is supplied by an ERU. I set the outside air to 0 on the chilled beams HVAC
systems tab.
In the chilled beam zone tab I set the outside air to the primary CFM and the
overall CFM to the induced air flow.
Per the eQuest help menu, "The sum of the OA requirements for all SYSTEMs that
reference an OA-FROM-SYSTEM is used to set the referenced OA-FROM-SYSTEM value
for MIN-OUTSIDE-AIR, SUPPLY-FLOW as well as adjust the referenced OA-FROM-SYSTEM
directly served ZONE maximum and minimum flows for both heating and cooling."
But per my hourly reports, the ERU is not supplying the necessary amount of
primary air and in the summer the ERU flow drops to .01 CFM.
Attached are the project files. Any ideas?
Thank you,
Paul Diglio, CEM, CBCP
87 Fairmont Avenue
New Haven, CT 06513
203-415-0082
www.pdigliollc.com
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