[Bldg-sim] LEED EAp1/EAc1 modeling question - self-sizing

Sheila Sagerer sheila at energyopportunities.com
Wed Mar 18 07:44:05 PDT 2015

Hi Christopher,


The Proposed building modeling protocols are stipulated by ASHRAE Appendix G. Table G3.1 Section 10(b) states that when a complete HVAC system has been designed, the Proposed building model HVAC components must be consistent with the design documents. As such, if the air flows at the zone level are on the mechanical plans or schedules, then the model must use those values, not auto-sizing.




Please note I have a new phone number.


Sheila Sagerer

Energy Engineer, EIT, LEED AP

Energy Opportunities, Inc, a 7group company

Phone: 717-341-1496

www.sevengroup.com <http://www.sevengroup.com/> 


From: Bldg-sim [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Jones, Christopher
Sent: Wednesday, March 18, 2015 10:37 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] LEED EAp1/EAc1 modeling question - self-sizing


I am wondering what the GBCI policy is on self-sizing air flows at the zone level for multi-zone system such as VAVS, IU, etc. for the proposed design model.  I have always been of the thought that the zone air flows should be explicitly sized in the proposed case model.  


As always, thank you for your valuable insights. 


Christopher Jones, P.Eng. 
Tel: 416.644.4226 • Toll Free: 1.888.425.7255 x 527


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