[Equest-users] OA hourly data

Paul Diglio paul.diglio at sbcglobal.net
Tue Apr 19 10:24:57 PDT 2011


Rohini:

Since there is no such thing as a damper that does not have a leakage value, 
perhaps eQuest is factoring that in.  Can you just remove the economizers?

Paul Diglio





________________________________
From: R B <slv3sat at gmail.com>
To: eQUEST Users List <equest-users at lists.onebuilding.org>
Sent: Tue, April 19, 2011 12:40:08 PM
Subject: Re: [Equest-users] OA hourly data


Kamel, Bill,
Thanks for the reply. I changed the OA cfm for all the zones to 0. Now in the 
SV-A report the zone OA is showing as zero but the system OA ratio is 0.2 and 
the custom hourly report variables (ratio of outside air to supply flow  - Var 
39, and the minimum OA damper position - Var 80) are still varying from 0.21 to 
0.56. Not sure from where eQuest is getting 0.2 value or these other values in 
the hourly report.
Does VAV have a default minimum outside air that cannot be overwritten?
 
Thanks
-Rohini


On Tue, Apr 19, 2011 at 10:16 AM, Haddad, Kamel <Kamel.Haddad at nrcan-rncan.gc.ca> 
wrote:

Rohini, Try setting all the zone level outside air fields  to the smallest 
number you can enter.
> 
>Kamel Haddad
> 
> 
>
________________________________
 
>From: equest-users-bounces at lists.onebuilding.org 
>[mailto:equest-users-bounces at lists.onebuilding.org] On Behalf Of R  B
>Sent: April 19, 2011 10:21
>
>To: eQUEST Users  List
>Subject: [Equest-users] OA hourly data
>
>
>
>Hello all:
>I am trying to simulate zero outside  air. I set the min OA on the systems tab 
>to zero, economizer to fixed fraction,  there are no OA numbers at the zone 
>level. I would assume this will give me zero  OA but when I look at the hourly 
>variables (ratio of outside air to supply flow  - Var 39, and the minimum OA 
>damper position - Var 80) they vary from 0.21  to 0.56. 
>
>What am I missing? Any pointers  helpful.
>-Rohini
>
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