Forum discussion

NC-v4 EAp2:Minimum energy performance

Multi Scene Control for Lighting

Dear all, We're working on a LEED v4 NC project in Mexico. I am referring to Exceptions to 9.4.1.2b of standard ASHRAE 90.1-2010, where the automatic lighting shutoff control can be excluded if the space has a Multi Scene control system. I reviewed the definition, and my question is, would separating the space's lighting circuits, and having independent control for them (two separate switches), count as multi-scene control? Going for a more automated control would raise significantly the cost for the project. Thank you!

1

You rely on LEEDuser. Can we rely on you?

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

Go premium for $15.95  »

Mon, 04/25/2016 - 13:50

I think the two switches controlling a portion of the lighting meets 9.4.1.2 without having to use any of the exceptions.

Tue, 07/02/2019 - 18:56

@Marcus, are you saying that if a room that would otherwise require an occupancy sensor, doesn't actually need one if the lights are controlled by two or more manual switches? In the definition of a "multi-scene control" the definition ends with "...and allows the automatic recall of those settings", which leads me to believe that a scene needs to be recalled with a "non-manual influence" (see definition of "automatic"). I know this is an old post, but I have a few conference rooms with an area light over a table and some wall washer lights on white board wall, and these two are controlled separately. My understanding is that at least the area light above the table will need to be controlled automatically with an occupancy sensor, whereas the wall washers can be on a manual switch. But your comment suggest neither lights need to be on an occ sensor. 

Tue, 09/03/2019 - 18:21

No that is not what I am saying. I was just responding to the specific question posed above.

Add new comment

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