IES-VE User Forum

I have received a number of part L models from my colleague who routinely imports the annual profile template (Mod) office controlled lighting [LICO] and applies it as the dimming profile in rooms where there are dimmable fittings. Is this correct?

I see this as fundamentally wrong as the profile dims all lights within the zone to around 30% for the majority of the year giving fantastic energy savings. Where in reality most cases have just the first row of fittings nearest the windows as dimmable. (these are side light buildings without roof lights in the zone under consideration)

My preference is to use the NCM photoelectric controls

No, I wouldn't say that is a suitable dimming profile for use in VE Compliance; if you're using the dimming profile option then the profile should accurately reflect the dimming operation of the sensor in the room. The following example of a suitable formula profile for dimming can be found in the ApPro user guide.

ramp(e1,0,1,500,.4) a formula suitable for applying as a dimming profile controlling lighting gain as a function of available daylight. It modulates the lighting gain as a function of the illuminance on the working plane, e1. The value of the profile falls from 1 at zero illuminance to 0.4 at illuminance 500 lux, thereafter remaining constant at this value. The value 0.4 (which you should set as appropriate) represents the fraction of the room‟s lighting gain which is not subject to daylight control. The illuminance e1 must be computed using the link to Radiance (a valid license key for Radiance is required)

If you don't want to use the Radiance link or don't have enough information on the operation of the sensor(s) in the room then you can use the Photoelectric options available under NCM Lighting Control.

I hope this helps.

Thank you Terence