[Equest-users] "poor mans VAV" - system selections?

[Dahlstrom, Aaron]

I've seen the "poor man's VAV" installed on several small commercial jobs in the last few years - that is: packaged constant volume rooftop with zone dampers modulating airflow to spaces and a supply-to-return bypass damper for excess supply air.

Any suggestions which system type to use in eQUEST / DOE-2 for this system?

I've looked at CBVAV, but that requires CHW cooling.

I'm looking at PVVT right now. It requires a variable flow supply fan, though, and doesn't pick up the changed evaporator entering conditions due to the bypassed cool supply air.

Any thoughts?


Aaron Dahlstrom , PE, LEED(r) AP
In Posse - A subsidiary of AKF| 1500 Walnut Street, Suite 1414, Philadelphia, PA 19102
d: 215-282-6753| m: 267-507-5470| In Posse: 215-282-6800| AKF: 215-735-7290
e: ADahlstrom at in-posse.com | in posse web: www.in-posse.com<http://www.in-posse.com/> | akf web: www.akfgroup.com<http://www.akfgroup.com/>





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