[BLDG-SIM] eQUEST/economizer

[Mike Tillou]

Dave,
 
Be sure to check and make sure you are running eQUEST version 3.40 or later.  For a long time eQUEST had a bug that did not allow the economizer in system type VAVS to work properly.  I cannot remember which version solved the problem but I know the economizer works properly in version 3.40.
 
Mike
 
 
Michael Tillou, PE
etc Group, Inc.
  

-----Original Message-----
From: postman at gard.com [mailto:postman at gard.com] On Behalf Of David Lanceta
Sent: Wednesday, April 28, 2004 2:35 PM
To: BLDG-SIM at GARD.COM
Subject: [BLDG-SIM] eQUEST/economizer


Hi everybody!
 
First of all, I would like to say thank you to everybody that have helped me in the past, I used to send emails to everyone but I´m sure I´ve forgotten some of them.
 
I´m simulating an office building with eQUEST, and I´m trying to know how much energy can be saved up. 
 
The HVAC system type is "Standard VAV with HW Reheat" for all the zones, the cold deck reset is 55ºF. I´ve also set up a drybulb temperature economizer, high limit 65ºF.
 
I think that when the drybulb exterior temperature is below 55ºF there should be free-cooling, but checking the temperature values this only happens when it´s under 49ºF  
 
does anybody know why it could be?
 
thanks
=================================
David Lanceta 
Área de Mecánica de Fluidos
Centro Politécnico Superior
Universidad de Zaragoza
María de Luna 3, tel (0034)9761000 ext 5044
50015 ZARAGOZA
ESPAÑA



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