[Equest-users] (no subject)

[Otto Schwieterman]

Andrew,

 

I would write a narrative explaining how eQUEST calculates unmet hours.
You take the % of hours outside throttling range on your BEPS or BEPU
report and multiply it by the number of hours your fan is on (SS-E
report). 

 

The SS-R report shows room-by-room unmet hours. You should not take the
sum of these hours because 10 rooms may be unmet at 3:00-5:00  and the
BEPS report calculates this as 2 hours while the sum of the SS-R report
calculates it as 20 hours (10 rooms x 2 hours).

 

Otto 

 

From: Andrew T McMurray [mailto:amcmurray at pacollinspe.com] 
Sent: Tuesday, July 06, 2010 2:17 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] (no subject)

 

Hello Everyone,

 

I am trying to finalize a building model for a LEED submission but am
having difficulty getting the BEPS report "percent of hours any system
zone outside of throttling range" to match the SS-R reports "zone under
heated" and "zone under cooled" hours.  This was a complaint from the
LEED reviewer.

 

The building has three systems and all spaces are conditioned.  The BEPS
report lists hours outside of throttling range at 2% (175hrs), but the
SS-R report lists under heated and cooled hours of 280 (3.2%).  

 

I consider myself fairly familiar with equest but am unable to get these
two numbers to match.  Has anyone run into this problem in the past or
have any ideas of where I should be focusing my attention?

 

Many Thanks,

 

 

Andrew McMurray, EIT
P. A. Collins PE Consulting Engineers
15 West 26th Street, 5th Floor
New York, NY 10010
 
tel: 212.696.5294
fax: 212.696.5295
www.pacollinspe.com


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