I've been looking into the ASHRAE 90 energy code, which is mandatory in some jurisdictions. Under lighting, it states the following:
9.2 Mandatory Provisions
9.2.1 Lighting COntrol
9.2.1.1 Automatic Lighting Shutoff. Interior lighting in buildings larger than 5000 sq ft shall be controlled by an automatic control device to shut off building lighting in all spaces. This automatic control device shall function on either
(a) a time of day operated device ......
(b) an occupant sensor .....
(c) by occupant intervention
There are of course exceptions for emergency lights and some other situations.
Now I am taking this to mean that relay control panels are now required in commercial buildings. The "occupant intervention clause" doesn't just mean a little wall switch, it means that the occupants can turn the lights on and off but the relay panel is the device controlling the lights.
Am I reading this right? Are other people seeing relay panels installed routinely as a result of ASHRAE 90?
9.2 Mandatory Provisions
9.2.1 Lighting COntrol
9.2.1.1 Automatic Lighting Shutoff. Interior lighting in buildings larger than 5000 sq ft shall be controlled by an automatic control device to shut off building lighting in all spaces. This automatic control device shall function on either
(a) a time of day operated device ......
(b) an occupant sensor .....
(c) by occupant intervention
There are of course exceptions for emergency lights and some other situations.
Now I am taking this to mean that relay control panels are now required in commercial buildings. The "occupant intervention clause" doesn't just mean a little wall switch, it means that the occupants can turn the lights on and off but the relay panel is the device controlling the lights.
Am I reading this right? Are other people seeing relay panels installed routinely as a result of ASHRAE 90?