[Bldg-sim] USGBC- LEED NC 2.2 / ASHRAE 90.1 Appendix G- Labs applications

[Paul Riemer]

Did anyone respond on this?
As best as I can tell, addendum ac to 90.1-2004 revised the Ch. 6 fan power limitation but not Appendix G's baseline fan power.  But now in 90.1-2007, Apdx. G looks aligned with Ch. 6.

Thanks (and I am trying to show my appreciation for all the volunteers who craft these rules by following them),

Paul Riemer, PE
Mechanical
DUNHAM





________________________________
From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Itzhak Maor
Sent: Monday, March 03, 2008 4:44 PM
To: bldg-sim
Subject: [Bldg-sim] USGBC- LEED NC 2.2 / ASHRAE 90.1 Appendix G- Labs applications

Hello Modelers.

I am looking for information/experience with applying the ASHRAE 90.1-2004 , Appendix G for labs.

It is well known that  Appendix G cannot be used properly for labs. The ECB and Labs 21 fixed many of the problems and now they are part of the 2007 version ( not as addenda to the 2004 version). USGBC refers to the 2004 version , but also allows the use of 2004 addenda (per USGBC memo from April 26 2007). I am wondering if anybody knows what is the position of USGBC regarding the 2007 appendix G changes.

Thanks

Itzhak
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