[Bldg-sim] Appendix G Chiller

[Demba Ndiaye]

Marty,

You are probably referring to Appendix G of ASHRAE 90.1-2004. It is about water-cooled chillers: it is implicit in the System-Specific Baseline HVAC System Requirements.

This has been corrected in the 2007 version, which now states explicitly "water-cooled".

______________
Demba NDIAYE

From: bldg-sim-bounces at lists.onebuilding.org [mailto:bldg-sim-bounces at lists.onebuilding.org] On Behalf Of Snarski, Marty
Sent: Thursday, May 27, 2010 10:31 AM
To: bldg-sim at lists.onebuilding.org
Subject: [Bldg-sim] Appendix G Chiller

Hello, All.

After perusing Appendix G and the LEED book, I've been unable to find the answer to this one:

If I've got a project that's using a Air-cooled Chiller, what baseline chiller do I use?  Appendix G says to use 2 equally sized Screw Chillers.  But, it doesn't say if these have to be air-cooled or water cooled.  I'd imagine there's quite a benefit to compare with a water cooled, when you take into account the cooling tower, etc.

Any ideas if this is alright?


Martin Snarski   LEED(r) AP
Mechanical Engineer


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