ECN Forum Forums General Topics of the Trade General Discussion Area opinions on daylight harvesting

The link to the Axis Technologies fixture is below.

http://www.fsclighting.com/fsgreenzone

I would think that individual photocells dimming the fixtures might become problematic. They use a proprietary ballast, which is probably not a major brand of dimmable ballast. Replacement ballasts/photocells may not be readily available. I'd suggest using a name brand of ballast for your customer's application.

All the lighting harvest dimming systems I've used had a common photocell, with low voltage control.
All the control wiring that's necessary is the connection of the photocell mounted in the window, or skylight, to the dimmer panel, and a #18 low voltage(0-10V, 2 conductor) from the dimmer panel, run between the fixtures to be controlled.

As a retrofit or new installation, it's really a no brainer.

The tricky part of all of this is the fixtures will be suspended from a high ceiling. That would mean two cables coming down for each fixture. Not impossible I guess. I suppose I am getting ahead of myself because I don't have the layout in front of me yet.

How was the commisioning of the system? Lots of time involved with adjustments or programming?

I have had a set it & forget it experience.

No time at all spent adjusting. Didn't have a callback ever

That's encouraging. Do remember what brand of controls you used?

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