Modeling a VVT system

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Has anyone out there modeled a VVT system in eQUEST? I'm trying to
model a rooftop packaged unit that uses a VVT system. The unit runs at
a constant volume and as the dampers close off at the zones, the bypass
damper opens up. I currently have the system type as a Pkgd Var Vol Var
Temp. I had to change the fan to a constant volume instead of a
variable speed fan. I have to pick a control zone of one room when it's
actually controlling many rooms. On my BEPS report I have a high
percentage of hours that any system zone is outside of the throttling
range. Does anyone know why that is the case? Any help in modeling a
VVT system would be greatly appreciated.

Thanks

Jason Seagle

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