[Equest-users] CW Pump power issue

[John Aulbach]

Did you set your Chilled Water loop to run initially on Demand rather than Standby? Standby will run the pumps continuously, Demand only operates when there is a load.

John R. Aulbach, PE


On Thursday, August 7, 2014 9:35 PM, Rishabh Kasliwal <rishabh at kamalcogentenergy.com> wrote:
 


Is it possible that the IT room was making the pumping/CHW system run extra hours on nights and weekends. 
Check the operating hours in PS-C command for the loop and pumps. 

Thanks
Rishabh

On 8/8/2014 5:45 AM, Gastón Michaud F. wrote:

 
>Hello everyone,
>I am modeling a system 8 for a LEED baseline and I’m having an interesting issue over here.  The system is a VAV with PFP boxes, with one system per floor and a central chiller plant.
>Now, the LEED reviewers are saying that the IT rooms should be modeled with a system 4 which sounds reasonable since the chiller should not be working on unoccupied hours just for this small room.  When I make the change in eQuest, by setting an independent system for this zone, the total pump and cooling energy consumption drops significantly, which doesn’t make any sense if the room is just about 1 ton in a 3000 ton system.  
>Has anyone had a similar issue?
>Thank you!  
> 
>  Ing. Gastón Michaud F. 
>  Tel.: (506) 2222-7529
>  Fax: (506) 2256-5608
>  From USA: 1-305-433-3668
>  Calle 30, Avenida 0 y 2. San José, Costa Rica     
>          
>Este correo puede contener información protegida por el secreto profesional. Si usted no es la persona a quien va dirigido, por favor tome en cuenta que su divulgación, distribución o reproducción es estrictamente prohibida. Cualquier persona que reciba este mensaje por error debe notificarlo inmediatamente al remitente vía telefónica o correo electrónico y borrarlo permanentemente de su computador. Los comentarios plasmados en este correo son del remitente solamente y no reflejan necesariamente la posición de CTS S.A.
>Por favor considere su responsabilidad con el medio ambiente antes de imprimir este correo electrónico 
>----------------------------------------------------------------------------------------------------------------
>This mail may contain information that is legally privileged, confidential or exempt from disclosure.  If you are not the intended recipient, please note that any dissemination, distribution or copying of this message is strictly prohibited.  Anyone who receives this message in error should notify the sender immediately by telephone or by e-mail and delete it permanently from their computer.  The opinions above are those of the author and do not necessarily reflect the position of CTS S.A.
>Please consider your environmental responsibility before printing this e-mail  
> 
>
>
>_______________________________________________
Equest-users mailing list http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG 


_______________________________________________
Equest-users mailing list
http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20140808/02134d91/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 1440 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20140808/02134d91/attachment.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 1384 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20140808/02134d91/attachment-0001.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 5466 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20140808/02134d91/attachment-0002.jpeg>