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Re: [EnergyPlus_Support] Series Counterflow Chiller Arrangement



Try setting the branch control to SeriesActive for each chiller and see 
if that helps.

Branch,
Central Chiller Branch, !- Name
0, !- Maximum Flow Rate {m3/s}
, !- Pressure Drop Curve Name
Chiller:Electric, !- Component 1 Object Type
Central Chiller, !- Component 1 Name
Central Chiller Inlet Node, !- Component 1 Inlet Node Name
Central Chiller Outlet Node, !- Component 1 Outlet Node Name
SeriesActive; !- Component 1 Branch Control Type


elmaria024 wrote:
>
> I'm trying to model a series counterflow (water-cooled) chiller 
> arrangement where two chillers are in series. I can get the SVG file 
> to accurately represent the arrangement, but I can't seem to control 
> the chillers properly. When only one chiller is on (the other not on 
> the plant equipment list), the chilled water loop maintains set point, 
> but when I add the second chiller to the equipment list neither 
> chiller turns on during the year. I've tried uncontrolled, cooling 
> load, and component set point operation controls to no avail.
>
> Can series counterflow chillers or just series chillers be modeled? I 
> don't see any example files. If they can, what am I missing?
>
> Thanks in advance!
>
> 

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