[Equest-users] Unmet Hours
Paul Diglio
paul.diglio at sbcglobal.net
Thu Jul 7 08:17:45 PDT 2011
Brad:
Please see attachment. It is a excerpt from 90.1-2010 that clarifies the
definition of an unmet load hour.
If the 250 unmet hours in each zone occur at the same time, you would have only
250 unmet hours.
Paul Diglio
________________________________
From: "Patrick J. O'Leary, Jr." <poleary1969 at gmail.com>
To: Brad Robinson <brad.robinson at yahoo.com>
Cc: "equest-users at lists.onebuilding.org" <equest-users at lists.onebuilding.org>
Sent: Thu, July 7, 2011 10:56:08 AM
Subject: Re: [Equest-users] Unmet Hours
that would be 500 unmet hours.
the bigger leed review problem i've had is when i have more unmet hours in one
category in the proposed (like 200 unmet in cooling) and fewer unmet hours in
the other (like 0 in heating) but the baseline is opposite. certain leed
reviewers think this is a problem. the 90.1 requirement addresses the unmet
hours per the entire building design (both heating and cooling) not heating and
cooling individually.
On 7/7/11 7:49 AM, Brad Robinson wrote:
For LEED compliance under ASHRAE 90.1, are the 300 unmet hours the sum of all
the unmet hours in each zone, or the peak per zone? In other words if I have
250 unmet hours in one zone and 250 unmet hours in another zone, does this
comply, or is it considered 500 unmet hours total? By zones, I mean thermal
zones served by the same air handling unit. Thanks.
>
>
>
>Brad Robinson
>
>
> _______________________________________________ Equest-users mailing list
>http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org To
>unsubscribe from this mailing list send a blank message to
>EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20110707/0cbf5f16/attachment-0002.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: Unmet Hours 90.1-2010.pdf.pdf
Type: application/pdf
Size: 29192 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20110707/0cbf5f16/attachment-0002.pdf>
More information about the Equest-users
mailing list