[Equest-users] Chiller AND Central CHW Plant

[Brian Fountain]

Using /equipment controls/ you can specify when the chiller and when the 
chilled water meter satisfy the load under different load conditions.  
However, as you are looking for seasonal control, you will need to set 
up a /load management/ for the chilled water loop.  Load management lets 
you specify which equipment control strategy is in control based on a 
schedule, loop load, zone temp or OAT.  So you will have 2 equipment 
controls - 1 where the chilled water meter serves the loop and 1 where 
the building chiller serves (you also can have a combination).  You will 
also have a load management which points to the chilled water meter 
equip control in the summer (based on a schedule or OAT) and to the 
chiller equip control in the winter.

I do not believe you can have multiple chilled water coils in eQUEST AHUs.

Brian



On 3/8/2012 6:03 PM, Jason L. Curtis wrote:
>
> I have a building that uses an on-site chiller during the summer 
> months, but uses chilled water from a central plant for small 
> dehumidification loads during the winter and shoulder seasons.  Both 
> sources of CHW serve the same coils in AHUs.  Does anyone know how to 
> model this????
>
> My issue is that I cannot apply operating schedules to chillers or to 
> CHW meters!
>
> Responses are much appreciated!!
>
> *Jason Curtis, Mechanical Engineer I BVH Integrated Services, Inc.*
>
> 50 Griffin Road South, Bloomfield, CT 06002 *I* 860.286.9171
>
> One Gateway Center, Suite 701, Newton, MA 02458 *I* 617.658.9008
>
> bvhis.com <http://www.bvhis.com/> I twitter.com/bvhis 
> <www.twitter.com/bvhis%A0>**
>
>
>
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