See all forum discussions about NC-2009 IEQc1
 Subscribe to new posts about NC-2009 IEQc1 Post a new question aboutNC-2009 IEQc1
See LEEDuser’s guidance on NC-2009 IEQc1»
FAQs about IEQc1 :

If my project is using air handlers that supply 100% outside air at a constant volume, do I still need to install an airflow monitoring device?

View answers »

Forum discussion

NC-2009 IEQc1:Outdoor Air Delivery Monitoring

Requirement for CO2 sensor and OA measurement device

Default Avatar
Barbara McCrary
Mechanical Engineer, PE, LEED AP BD&C
HHB Engineers, P.C., Prattville, AL
LEEDuser Basic Member
63 thumbs up

I found a thread from 2011 discussing the Addendas released 5/9/11 removing the footnote that was previously changed under Addenda reliease 9/19/10. Can someone set me straight if i'm not interpreting the 5/9/11 addenda correctly? I interpret the new requirement as: Case 1) If I have a system that serves only 1 space that is densely occupied, the only requriement of this credit is a CO2 sensor. An OA measurement device is not required. Case 2) System that serves 20% or more non-densely occupied spaces, and has one densely occupied conference room. I will need to provide a CO2 sensor for the Conference room AND an OA measurement device on the system, since i'm serving 20% or more densely occupied spaces. Thanks!

0
Post a reply

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Thu, 10/18/2012 - 14:40

Barbara, you are correct for both cases. Just one note; remember that the 20% refers to 20% of the supply airflow serving non-densely occupied spaces. It does not refer to 20% of the floor area.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.