[Equest-users] Pkg VAV - General Question - Ventilation

[Keith Swartz via Equest-users]

Mike,

The program is accounting for the density of the air at the elevation of the project site compared to density at sea level. To make the output airflows match you input airflows, you need to change the elevation to zero.

In the "Project & Site" module, click on "Site Data" along the left side. In the "Site Properties" window that pops up, and in the "Basic Specifications" tab, enter "0" for Altitude.
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Keith Swartz, PE | Senior Energy Engineer
Seventhwave
608.210.7123 seventhwave.org

From: Mike Schaefer via Equest-users [mailto:equest-users at lists.onebuilding.org]
Sent: Saturday, January 28, 2017 4:18 PM
To: Annie Marston via Equest-users <equest-users at lists.onebuilding.org>
Subject: [Equest-users] Pkg VAV - General Question - Ventilation


I'm modeling a Pkgd Var Vol rooftop unit with VAV boxes in eQUEST version 3.65 and I have a ventilation issue. The issue is this...



Although I enter an Air Flow rate in cfm for each VAV box, the program insists on increasing my cfm by 1.05% when I run a simulation. I can't seem to force the program to model the ventilation cfm that I've entered. How can I stop eQUEST for increasing by hardwired ventilation cfm? What factors do I need to modify to run a simulation with the ventilation quantities for my scheduled cfm?



thanks,



Michael Schaefer - P.E.*, LEED AP

Licensed in Kansas, Missouri, and Colorado
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