[Equest-users] Outside airflow (eQuest Users group)

[Karen Walkerman]

I have always sized the outdoor air to be the same in the proposed and
baseline buildings.  There is a section in Appendix G that specifically
directs the modeler to do this.  I have had a number of buildings approved
using this method.

--
Karen

On Wed, Feb 24, 2010 at 9:06 AM, Tomlinson, Scott <stomlinson at smma.com>wrote:

>  Thank you to those who helped with my previous outside air question.  I
> now understand how the outside air is controlled, I’m just not sure how I
> should be setting it.  ASHRAE 90.1 – 2004 dictates that the minimum outdoor
> air ventilation rates should be the same for the design and baseline
> building, but one of our LEED review comments is that our baseline model
> should be modeled base on ASHRAE 62.1 – 2004 requirements.  It seems that if
> I let eQuest size my OA based on ASHRAE 62.1 I won’t match my design
> building OA rates (in this case, 100%).  Also, if I let eQuest size my OA
> based on the 100% OA rate of my design building I will be over ASHRAE 62.1
> requirements.
>
> What method of outside air sizing have y’all been using for your models,
> and have you been approved by USGBC with the method?
>
>
>
> -          Thank you,
>
>
>
> __________________________________________
>
> *Scott Tomlinson, PE, LEED-AP*
>
> Mechanical
>
> *Symmes Maini & McKee Associates, Inc.*
>
> 1000 Massachusetts Avenue, Cambridge, MA 02138
>
> t: 617.520.9438
>
> [image: http://intranet/Images/USGBC.jpg]
>
>
>
> f: 617.354.5758
>
> stomlinson at smma.com <STomlinson at smma.com>
>
> www.smma.com
>
>
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