[Trace-users] VAV System Modeling for LEED

Rafael Carrero RC at bala.com
Thu May 16 05:55:06 PDT 2013

Good morning everyone.
I am modeling a building with 2 DX VAV rooftop units with electric heat. These rooftops serve VAV terminals (on interior spaces) and series fan terminals serving the perimeter. When I try to model this simple system on TRACE, I can select either a Series Fan-Powered VAV system, in which ALL the terminals will have fans, or a Variable Volume system, in which NONE of the terminals will have fans.

I can not model my RTU as it if was 2 RTUs, one for the interior with VAV terminals and one for the perimeter, with FTUs. This would defeat the whole purpose of having a VAV system, as the interior spaces would be most likely a constant volume.

Thank you very much in advance.

Rafael Carrero
Direct: 610 994 9388  |  rc at bala.com<mailto:rc at bala.com>

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