[Equest-users] Lighting Controls for LEED

[MatthewRLarson at Eaton.com]

Michael,

 

There are a couple different ways to account for occupancy sensors for
LEED but you need to follow Appendix G Table G3.2 of ASHRAE 90.1.  

 

  

 

Basically you're allowed to reduce the lighting by the percentage listed
in the above table, 10% for most buildings.  You can do this by either
reducing the lighting power input for the spaces by 10% under the
Internal Loads tab or create a lighting occupancy sensor schedule that
has hourly fractions that are 10% less than your regular lighting
schedule.  You also need to make sure that you apply this lighting
credit to any spaces that are required by minimum code to have automatic
lighting controls specified under Section 9.4.1.  Table G3.1 Number 6
has a good explanation of this process for the baseline and proposed
building.

 

Thanks,

 

Matthew Larson, LEED AP BD+C
Project Engineer

Energy Solutions Group

E M C Engineers, Inc.
Eaton's Electrical Services & Systems 
143 Union Blvd, Suite 350
Lakewood, CO 80228
tel: +1 303 328-3419
mobile: +1 303 668-2511
fax: +1 303 974-1239

MatthewRLarson at Eaton.com 
www.eaton.com/energysolutions  

 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of M.
Shields
Sent: Tuesday, March 22, 2011 6:24 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Lighting Controls for LEED

 

Hi All,

 

I just got back comments on my models for a LEED project and the
reviewer commented that I needed to account for occupancy sensors.  I
had done this by switching the lighting schedule to the occupancy
schedule in rooms with occupancy sensors, does anyone know if this is an
appropriate way to model occupancy sensors?  Is there a tool built into
equest that allows you to account for them a different way?

 

Thanks in advance,

 

____________________________
Michael Shields
Facility Strategies Group, LLC

1012 Market Street, Suite 307

Fort Mill, SC 29708

Phone: 803-493-4507

Fax: 803-548-2511
Email: mshields at fstrategies.com

 

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