Lighting control question

Status
Not open for further replies.
mshields

mshields

Senior Member
Location
Boston, MA
I have exam rooms on a project for which I wish to have occupancy sensor control, dimmable control and HOA type capability should the occupant wish to bypass the Occ sensor.

Does anyone happen to know, if there is a device out there that will do all of this OR assuming not, how many devices do I need?

thanks,

Mike
 
There are many ways to go about with this.
You could use a lighting control system such as the Lutron Ecosystem (which also allows daylighting) and tie in the occ sensors and have local dimming controls at the exam room entrances.

You could set the occ sensor to act as a vacancy sensor. That way the lights wil turn on manually and automatically turn off say 10-15min of no activity.
 
legato said:
There are many ways to go about with this.
You could use a lighting control system such as the Lutron Ecosystem (which also allows daylighting) and tie in the occ sensors and have local dimming controls at the exam room entrances.

You could set the occ sensor to act as a vacancy sensor. That way the lights wil turn on manually and automatically turn off say 10-15min of no activity.
Click to expand...

The fancier you get, the higher probability there will be for component failure. In an OR, people get touchy/feely when the light goes out......:grin:
 
I don't think you will find an occupancy sensor that has a manual override to "on". I think it has something to do with energy codes. (A occupancy sensor with a manual on wouldn't meet the codes for automatic control.)

I've tried to find occupancy sensors without the "manual off" for use in toilet rooms. Couldn't find one. Someone turns off the lights on their way out, and the next person can't figure out how to turn them back on.
 
steve66 said:
I don't think you will find an occupancy sensor that has a manual override to "on". I think it has something to do with energy codes. (A occupancy sensor with a manual on wouldn't meet the codes for automatic control.)

I've tried to find occupancy sensors without the "manual off" for use in toilet rooms. Couldn't find one. Someone turns off the lights on their way out, and the next person can't figure out how to turn them back on.
Click to expand...

Maybe they don't market it anymore, but I clearly remembering seeing one.
 
weressl said:
The occ sensor may have difficulty working on a lower and/or chopped voltage.
Click to expand...

Would a power pack resolve that issue? I'll have to go check out Wattstopper's products to see if that would work.

Other than controlled by that Lutron system, I can't think of having to design a room with a dimmed load that also required automatic on/off.
 
mshields said:
I have exam rooms on a project for which I wish to have occupancy sensor control, dimmable control and HOA type capability should the occupant wish to bypass the Occ sensor.

Does anyone happen to know, if there is a device out there that will do all of this OR assuming not, how many devices do I need?

thanks,

Mike
Click to expand...
Our offices have such a system.
There are several modes.
Time of day when offices are not expected to be occupied result in an all off.
Prior to 07:30 and after 18:30. A cleaners's switch can override that.
Lunchtime dims lights for individual work areas but common areas like messroms and common walkways brighten up.
Absence of movement turns down zoned lighting as applicable.
And ambient lighting sensors make best use of natural light.
 
Status
Not open for further replies.
Top