[BLDG-SIM] Fwd: eQUEST HVAC sizing runs

[gail]

Andrew makes a good point.  Set either system or plant sizing factors to
1.15 & 1.25 respectively, but not both.

Gail Stranske


On 2/15/07, Andrew Craig <andrew_c at ieice.com> wrote:
>
>  Assuming you are using eQUEST, in the Detailed Edit mode, you can specify
> the ratio of equipment sizing that you want for both heating and cooling.
> So to specify the Appendix G baseline model, you would oversize cooling by a
> factor of 1.15 and heating by a factor of 1.25.  Take care to check what
> the system sizing ratio is set at as well so you don't add safety factor
> upon safety factor.  Good luck.
>
>
>
>
>  ------------------------------
>
> *From:* bldg-sim at gard.com [mailto: bldg-sim at gard.com] *On Behalf Of *Andy
> McNamara
> *Sent:* Thursday, February 15, 2007 12:48 PM
> *To:* bldg-sim at gard.com
> *Subject:* [bldg-sim] eQUEST HVAC sizing runs
>
>
>
> Hello,
>
> As I mentioned previously, I am creating an energy model for a LEED
> project.  In "baselining" the building, one of the stipulations of ASHRAE
> 90.1 2004 is:
> "G3.1.2.2 Equipment Capacities.  The equipment capacities for the baseline
> building design shall be based on sizing runs for each orientation and shall
> be oversized by 15% for cooling and 25% for heating"
>
> I think that means I use "auto-size", but then how do I capture what that
> size is and oversize it accordingly?  I am guessing that the results may be
> in the SIM file.  Can anyone provide tips for executing this?  Is there a
> better way to do that auto-sizing for each orientation?
>
> Thanks,
> Andrew McNamara
>
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