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NC-2009 IEQc6.2:Controllability of Systems—Thermal Comfort

Mixed Use Buildings

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Donald Green
Sr Project Manager / Operations Manager
Progressive AE
LEEDuser Basic Member
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How are mixed use buildings seen with regard to number of T-stats. About 80% of the building is a Dorm with about 20% being a 2 story office wing. Does each occupant type have to meet the requirements separately? Reason being - the Dorm has a majority of 2 occupant rooms with several being for 3 occupants. Each dorm room has 1 FCU and 1 t-stat. According to the Space Matrix we only need 1 t-stat per dorm room with no mention of number of occupants, therefore it appears the Dorm meets the requirements. The Office wing although it has numerous t-stats does not currently comply as it has ceiling mounted VAV's that serve multiple rooms. So, how do we take the building as a whole to meet the requirements when it seems the 50% rule is skewed due to the dorm rooms?

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Wed, 07/10/2013 - 20:13

Hi Donald, interesting question! We don't have a specific rule for this situation, but in general we do not require each occupant type to meet the requirement separately. One of the following options should be acceptable: 1. demonstrate 50% of individual occupant spaces in the office area have individual thermal controls. OR 2. Count the number of occupants in each dorm room as the number of individual occupant spaces for the dorm rooms, and determine how many spaces in the office area are individual occupant. Demonstrate 50% of all individual occupant spaces have individual thermal controls. For example, if there are 2 occupants per dorm room and 10 dorm rooms, that would be 20 individual occupant spaces with access to thermal controls. Either way, be sure to include a comment to the reviewer to explain your thought process. Thanks, Larissa
Profile picture for user donald.green
Donald Green
Sr Project Manager / Operations Manager
Progressive AE
LEEDuser Basic Member
25 thumbs up

Mon, 07/29/2013 - 16:34

Thanks Larissa - your comment was very helpful and we now feel positive about achievement of this credit.

Tue, 07/30/2013 - 19:22

Excellent!

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