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What if my building doesn’t use a cooling tower?

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NC-v4 WEc3:Cooling tower water use

No Cooling Tower - Alternative Compliance Path

My project does not have a cooling tower. One of the ACP eligibility condition is: "the baseline system designated for the building using ASHRAE 90.1-2010 Appendix G Table G3.1.1 includes a cooling tower (systems 7 & 8)" 1. I would like to confirm if my project is no longer viable for this as ASHRAE 90.1-2010 Appendix G dictates that my baseline should be system 4. 2. Am I allowed to change my baseline to system 8 to be eligible to this credit?

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Ben Stanley
Senior Sustainability Manager
WSP - Built Ecology
LEEDuser Expert
188 thumbs up

Tue, 08/29/2017 - 15:12

Based on section G3.1.1 of the standard, the appropriate baseline is dictated by the building usage, number of floors, conditioned floor area, and heating source as specified in Table G3.1.1A. So, I don't think that there's anyway to adjust the baseline for the purposes of this LEED credit. There are a few exceptions outlined in section G3.1.1 but it also seems unlikely that those exceptions would take a building from baseline system 4 to system 8.

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