[Equest-users] System per Area for Packaged VAV with Elec Reheat

Lars Fetzek lfetzek at phoenixeng.us
Tue Aug 25 04:56:18 PDT 2009


Rick,
 
     Just guessing - have you tried directly editing the .inp file in a text
editor?  Sometimes, this has helped me with other issues.  But sometimes,
upon opening and saving the project again in eQuest, eQuest will modify the
.inp file again.  Anyway, it might be worht a try.
 
Lars Fetzek, EI
Phoenix Engineering Group
Tampa, Florida
 

  _____  

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of YinRic
Sent: Tuesday, August 25, 2009 3:54 AM
To: Equest User
Subject: Re: [Equest-users] System per Area for Packaged VAV with Elec
Reheat


Hi, 
 
I am trying to follow the advice below to revise the fan power input. After
calculation, the result is 0.00101 kW/cfm, as I entered in the model (as
attached screen shows). However, I found that the simulation result is not
sensitive to this input (in blue).  I know the rule is "Use either
SUPPLY-STATIC and SUPPLY-EFF or SUPPLY-DELTA-T and SUPPLY-KW/FLOW." , but
now, both "SUPPLY-STATIC and SUPPLY-EFF" AND "SUPPLY-DELTA-T and
SUPPLY-KW/FLOW" appear in the window. I attempted to remove "SUPPLY-STATIC
and SUPPLY-EFF" but failed. Could anyone kindly advise how to make this
work?
 
By the way, I am quite curious to know if problems still exist in the
revised models after reviewed by GBCI for the second time, do we have to
appeal by then? Is it likely to happen? I am afraid I cannot make sure all
inputs are correct..Sorry for being off-topic.
 
Many thanks,
Rick
 

  _____  

From: kce2 at kamalcogentenergy.com
To: cesseric at hotmail.com
Subject: RE: [Equest-users] System per Area for Packaged VAV with Elec
Reheat
Date: Thu, 6 Aug 2009 12:24:38 +0530



Hi Rick,

 

You must entered the Fan power as kw/cfm in every system in baseline system

 

Thanks

Ashu

 

  _____  

From: equest-users-bounces at lists.onebuilding.org
[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of YinRic
Sent: Thursday, August 06, 2009 12:01 PM
To: Equest User
Subject: [Equest-users] System per Area for Packaged VAV with Elec Reheat

 

Hi All,
 
We have a 4-story office building to be LEED certified. The Baseline system
is packaged VAV with elec reheat. After reviewed by GBCI, the comment is:
 
"The Baseline case fan power does not appear to be modeled in accordance
with G3.1.2.9. Please revise the sum of the supply, return, exhaust and
relief fans for each HVAC system to be equal to the power calculated in
G3.1.2.9."
 
Now I am ready to revise the model, but I am not sure in the baseline case,
whether I must choose "system per shell", "system per floor" or "system per
zone". Could anyone advise? Thanks in advance. 
 
Rick, PE, LEED AP

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