[Equest-users] CW Pump power issue

[Rishabh Kasliwal]

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
>
> 	
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