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FAQs about WEc2 :

If manufacturer documentation is unavailable and the flow/fixture rate is unknown, how would one go about confirming the flow/flush rates of those fixtures?

We are not able to locate the flow/flush rates of the plumbing fixtures in the project building, so we have decided to test 20% of the fixtures of each fixture type. How do we go about doing that?

If pre-1993 plumbing fixtures are still in place (i.e. the water closets), but their flush valves have been replaced post-1993, does that count as 'plumbing renovation' or fixture replacement for the purposes of the prerequisite/credit?

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EBOM-2009 WEc2:Additional Indoor Plumbing Fixture and Fitting Efficiency

change in occupancy during performance period

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Chris Miller
Chief Mechanical Engineer
Design Alaska
LEEDuser Basic Member
29 thumbs up

How would you recommend handling changes to the number of FTE's during the performance period? Should I use a similar approach to what Portfolio Manager does with occupancy changes? In other words, adjust the baseline for the affected time period? Does anyone have any experience doing this? How is this documented in LEED Online?

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Dan Ackerstein
Principal
Ackerstein Sustainability, LLC
LEEDuser Expert
545 thumbs up

Fri, 06/29/2012 - 05:23

Changes in FTE only matter if they substantially change the distribution of occupants amongst fixtures of differing flow rates. So if your fixtures are constant throughout the building, changes in FTE really shouldnt affect your performance relative to the baseline. But if the fixtures do differ, frankly I would just use the occupancy in effect at the beginning or end of the performance period. I don't think the Reference Guide specifies and I don't think it matters enormously. I would lean towards whatever occupancy setup you intend to submit for EAp2 and the PI forms. Dan

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