[Equest-users] LEED Residential Buildings -pressure dropadjustments-

[Jeremy McClanathan]

Interesting.  I have a paper copy in front of me, but I can't find it on LEED-online anymore.  I wonder if they changed their minds?  I attached a scanned copy of the CIR, and the response I got from GBCI.

I question the CIR.  I couldn't find anything in the code that said system 1 has to be 0.3 W/cfm, and they were not able to point to a code document that says this.  They just told me I have to per the CIR.  It doesn't significantly impact the results in my project, and I have already spent days addressing comments that are insignificant to the results, so I just left it alone.

To answer your question, my interpretation of their response and the CIR is that it would apply to a hotel.

Jeremy

From: Dennis La Touche [mailto:latouche at termoaire.com]
Sent: Friday, July 30, 2010 10:22 AM
To: Jeremy McClanathan; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] LEED Residential Buildings -pressure dropadjustments-

Thank you, I couldn't find that CIR, does it apply also for hotel buildings?

Dennis

From: Jeremy McClanathan [mailto:jmcclanathan at CDiengineers.com]
Sent: Friday, July 30, 2010 10:47 AM
To: 'Dennis La Touche'; equest-users at lists.onebuilding.org
Subject: RE: [Equest-users] LEED Residential Buildings -pressure dropadjustments-

I had a similar scenario with patient rooms in a hospital recently.  I submitted the same question to GBCI, and the response was that I have to use 0.3 W/cfm per CIR dated 8/13/2007

___________________________________________

Jeremy McClanathan, LEED® AP
CDi ENGINEERS
4200 194th St SW, Ste 200, Lynnwood, WA 98036
P 425-672-1071 | F 425-778-8769
P Please consider the environment before printing this email.



From: Dennis La Touche [mailto:latouche at termoaire.com]
Sent: Friday, July 30, 2010 9:11 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] LEED Residential Buildings -pressure drop adjustments-

I have a question, for hotel buildings the baseline HVAC system type to be used should be PTAC/PTHP (ductless).

This proposed building will be composed by a chilled water system with air handling units and fan coils, all of them fully ducted return.

Is it possible to use the fan power limitation pressure drop adjustment indicated in ASHRAE 90.1 for increasing the baseline fan power?

The question is because in G3.1.2.9 it seems that it is only allowed for systems 3 through 8.

Thanks.


Dennis





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