LEDTROFFERINSTALLATIONS-LightingResearchCenter.pdfVIP

LED TROFFER INSTALLATIONS A guide for contractors and specifi ers to replacing fl uorescent troffers with new LED troffers or retrofi t kits. Summary This document provides guidance on selecting suitable LED troffers or retrofi t kits to replace existing fl uorescent troffers. In retrofi t applications, a one-for-one replacement at existing troffer locations is most cost effective. Look for an LED troffer or retrofi t kit that: • provides the same light output as the existing troffers or an output that is suffi cient to meet a target light level agreed upon with the occupant of the space, • has one of the highest luminaire effi cacies available, • does not cause glare, • and has a low enough installed cost to achieve a reasonable payback period. This is a publication of the Lighting Energy Alliance at the Lighting Research Center, at Rensselaer Polytechnic Institute. The Lighting Energy Alliance is sponsored by Effi ciency Vermont, Energize Connecticut, and National Grid. Copyright © 2015 by Rensselaer Polytechnic Institute. All rights reserved. No part of this publication may be reproduced in any form, print, electronic, or otherwise, without the express permission of the Lighting Research Center. First published January 29, 2015. Contributors include Edward Bartholomew, Sam Fankhauser, Jean Paul Freyssinier, Kassandra Gonzales, Dennis Guyon, Russ Leslie, Dan Mellinger, Patricia Rizzo, and Jeremy Snyder. Step 1 Provide adequate illuminance When evaluating LED troffers or retrofi t kits, fi rst identify products that will provide adequate light levels. Make sure that the new Agree with the occupant of the space to either maintain the current il-