[Equest-users] Fan energy fundamentals - Appendix G models

Melissa Crowe MCrowe at engsolutions.com
Thu Jul 31 13:37:37 PDT 2014


Fred

Thanks for the information!  In the past I have used this approach successfully for a LEED project..... but it was years ago when 90.1 2004 was the reference.  So I wasn't sure if it would still stand.

Yet somehow no matter what it always seems a  "cross your fingers and hope" as far as the opinion of the reviewer.

It is good to have company on the camino.
Good Luck and Thanks Again
Melissa


From: Fred Betz [mailto:fbetz at aeieng.com]
Sent: Thursday, July 31, 2014 4:30 PM
To: Melissa Crowe; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] Fan energy fundamentals - Appendix G models

Melissa,

We're doing this same thing for a LEED model that's going to be submitted towards the end the year.

The baseline uses that standard ASHRAE fan curve, and the proposed uses a curve developed based on the "Good SP Reset" curve from the EDR guide.

We did do an inquiry with GBCI to determine if this approach was acceptable and they said it was, but the official review will have final say.

Sounds like you (we) are on the same right track.

Fred


Fred Betz  PhD., LEED AP (r)BD&C
Senior Sustainable
Systems Analyst



AEI | AFFILIATED ENGINEERS, INC.
5802 Research Park Blvd. | Madison, WI  53719

P: 608.236.1175 | F: 608.238.2614
fbetz at aeieng.com<mailto:fbetz at aeieng.com>  |  www.aeieng.com<http://www.aeieng.com/>



From: Melissa Crowe [mailto:MCrowe at engsolutions.com]
Sent: Thursday, July 31, 2014 1:07 PM
To: equest-users at lists.onebuilding.org<mailto:equest-users at lists.onebuilding.org>
Subject: Re: [Equest-users] Fan energy fundamentals - Appendix G models

In this previous thread I am not sure if anyone answered my question.  Even if it was answered I can't find it so I'm hoping someone could help.

For  a LEEDv9 model (90.1 2007)  we use the Appendix G VAV fan curve for the base case model.   However, 2007 requires SP reset in 6.5.3.2.2.   Can we used the EDR Guide (good SP Reset) curve for the proposed model?  Or are we to use App G curve for both cases?

In the past I've used the Good SP Rest for the Proposed but I'm not sure if I've been gaming the system.

Thanks
Melissa

[cid:image001.jpg at 01CFACDD.BD21E9E0]
Melissa P. Crowe, LEED AP
Project Engineer
Engineered Solutions, Inc.
6 Union St, Natick MA 01760
508.647.9200 x225 (P) l 508.652.1936 (F)
MCrowe at EngSolutions.com<mailto:MCrowe at EngSolutions.com>

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