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CI-2009 EAc1.2:Optimize Energy Performance—Lighting Controls

Daylight Controls required for task lighting?

It seems innappropriate to include task lights that are plug powered in the "connected lighting load" for daylighting controls. Does anyone have a precedent for how GBCI views task lights with regard to daylight controls? Thanks!

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Mon, 08/29/2011 - 01:49

I would like to know the answer to that as well. We actually pursue the daylight control for 50% without including task lights and got comments from GBCI to include them. I heard that other projects didn't include or the reference guide doesn't specifically mentioned to include task lights, just 'connected lighting loads'. What is the definition of 'connected lighting loads'?

Tue, 07/31/2012 - 15:17

Based on the current LEED On-Line form, Option B and Option C appear to have different connected lighting loads. Option B allows the exclusion of supplemental task lighting if it is not equipped with daylight responsive controls. Option C requires the inclusion of task lighting, unless it is exempt under ASHRAE - but the exemption is for fixtures which have an automatic shut-off (which would likely be occupancy linked) so in most cases it is likely best to include the task lighting even if it can be excluded. I've been trying to determine if I need daylight controls on the task lighting within 15 feet of the windows, but my (narrow) reading of the credit and form lead me to believe that if we have the controls installed on the ambient lighting it is not necessary to have them on the task lighting as well. If anyone can confirm this it would be appreciated.

Wed, 07/19/2017 - 15:00

Hi Robin, we are currently working on a project with this same concern. Did you finally resolve this? Did you need to include task lighting? Thanks!

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