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NC-2009 EAp2:Minimum Energy Performance

Semi-conditioned spaces

Hi, I have a doubt related to the definition of "semi-conditioned" spaces. I read in section 3 of ASHRAE 90.1-2007 that what defines a cooled and heated space is related to the capacity/floor area. I could also have the definition of a semiheated space. But what defines a semicooled space? If, in my project, I have restrooms which are served by conditioned air mechanically transfered into these spaces, are they semiconditioned? Thanks.

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Marcus Sheffer
LEED Fellow
7group / Energy Opportunities
LEEDuser Expert
4454 thumbs up

Mon, 11/26/2012 - 18:02

Since semicooled is not defined I would assume it is any cooled space under 5 Btu/h·ft2 of floor area. The restrooms sound like they are indirectly conditioned spaces.
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Anthony Hardman
Building Performance Analyst
The Green Engineer
LEEDuser Premium Member
11 thumbs up

Mon, 11/26/2012 - 19:13

I agree, indirectly conditioned. For energy modeling purposes I usually just group these spaces with the typical adjacent corridor.

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