[Equest-users] floor area used by VAV system

[Jeremy McClanathan]

When you change the path to ducted, the wizard changes plenum zones to type "Unconditioned" rather than "Plenum".  Unconditioned zones are counted in the total area on the SV-A report, plenum zones are not.
Jeremy

___________________________________________
Jeremy McClanathan, P.E., BEMP, HFDP, LEED(r) AP BD+C
[cid:image001.jpg at 01CC7604.DA870410]
4200 194th St SW, Ste 200, Lynnwood, WA 98036
P 425-672-1071 | F 425-778-8769
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From: deepika khowal [mailto:deepika.khowal at gmail.com]
Sent: Sunday, September 18, 2011 1:09 PM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] floor area used by VAV system

Hello all
I am working on a 20 storey office building which has 20125 sf per floor.
I have assigned 1 VAV system /floor area.

I realized that the return air path plays a big role. When I use plenum return (since I have 4ft plenum in my design), the floor area used by system in SV-A report is 20125 sf which is correct.
As soon as I change the path to ducted, floor area doubles.
Does anyone know why this is happening?
Any thoughts will be helpful.

Thanks
Deepika



Results with return air path as plenum- the floor area is correct with plenum return

[cid:image002.jpg at 01CC7604.DA870410]


Results with return air path as ducted- floor area doubles with changing to ducted

[cid:image003.jpg at 01CC7604.DA870410]




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