[Equest-users] Unmet Hours

[Dakota Kelley]

I put one small FYI at the end of Nick's #3 below, in all caps for the
sake of the plain text archives...

 

Dakota

 

From: Nick Caton [mailto:ncaton at smithboucher.com] 
Sent: Tuesday, July 27, 2010 2:33 PM
To: M. Shields; equest-users at lists.onebuilding.org
Subject: Re: [Equest-users] Unmet Hours

 

Michael, 

 

90.1's passage (G3.1.2.2) regarding unmet hours requirements is
something I had to re-read many times to get my head fully wrapped
around it... Here's my current interpretation:

 

1.       You need to have 300 or fewer hours in each model.

2.       The proposed is not allowed to perform worse than the baseline
by more than 50 unmet hours.  If it does you have to make the baseline
"underperform" so they're within 50 of each other. 

3.       The baseline is permitted to perform worse than the proposed
(by any degree) as long as it's still 300 or fewer unmet hours. THIS IS
MY INTERPRETATION AS WELL, BUT IT IS WORTH MENTIONING THAT MORE THAN ONE
LEED REVIEWER HAS INDICATED THE OPPOSITE.  FOR EXAMPLE, I WAS TOLD I WAS
OUT OF COMPLIANCE WHEN THE BASELINE HAD 65 UNMET COOLING HOURS AND THE
PROPOSED HAD 5 UNMET COOLING HOURS.  DO YOU ARGUE, OR JUST REDUCE THE
BASELINE HOURS?  IT PENALIZES THE BASELINE TO REDUCE THOSE HOURS, SO I
WENT AHEAD AND DID WHAT I WAS TOLD.    

 

You haven't said whether you're talking about your baseline or proposed
model, but the above points should guide you as to whether you need to
make an adjustment.  Refer to G3.1.2.2 for review and further info.

 

~Nick

 

 

 

NICK CATON, E.I.T.

PROJECT ENGINEER

25501 west valley parkway

olathe ks 66061

direct 913 344.0036

fax 913 345.0617

Check out our new web-site @ www.smithboucher.com 

 

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of M.
Shields
Sent: Tuesday, July 27, 2010 1:19 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Unmet Hours

 

Hi All,

 

I am working on filing out the LEED paperwork for submittal and for
unmet hours I am wondering does the reviewer want the total unmet load
hours for the building, or an average per zone?  My building has about
100 zones, most of which have 0 unmet hours, but I have one zone which
has significant (more than 50) unmet hours.  Does this mean my model
exceeds the requirement that the difference between the baseline and the
proposed be less than 50 hours?

 

Thanks for any advice.

 

Michael Shields

Phone: 803-493-4507
Fax: 803-548-2511
Email: mshields at fstrategies.com

 

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