Forum discussion

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

Daylight controls in ALL daylit areas within 15 ft?

Can we exclude conference rooms that have multi-scene controls? We don’t want daylight sensors here; we want to be able to dim for presentations etc. In ASHRAE (9.4.1.2) this space is excluded for other reasons…

0

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Thu, 08/29/2013 - 14:14

Sorry to be posting a reply so late! From my experience, the LEED reviewers would interpret that a conference room with windows should be included in this daylight credit. If you want to exclude it, you will need to write a narrative describing why daylight is detrimental. This may be difficult if you have windows in the space, unless they are intended to be blacked-out most of the time. There are control systems that can combine daylight dimming and scene control. If you do not have a centralized, networked lighting control system, then you may look at the Lutron Grafik Eye that has both occupancy and photosensor inputs as well as scene controls. I hope this helps and is not too little too late. Dane

Mon, 09/16/2013 - 12:16

Dane, We were denied credit because of these couple of rooms. There are windows, but they are shaded by a bridge and neighboring buildings (on bottom floor). There are presence detectors, but when the rooms are occupied they will be mainly used for presentations etc. So daylighting controls in these rooms (where very little daylight falls in) is just complicating matters according to my lighting engineer. We did explain this to the reviewers in second submittal but they didn't agree with our arguments…

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.