[Equest-users] Extraction System question

Dakota Kelley dakotak at teliospc.com
Thu Nov 8 07:35:05 PST 2012


By extraction only, I assume you mean exhaust air only.

The closest option is to go to the Zone\Outdoor Air tab\Exhaust Air and define your exhaust fan parameters. This is basically the same as a room-level exhaust fan. Note, however, that DOE2.2 works on a thermal balance approach and does not provide for negative pressurization, so defining room-level exhaust may increase the outside air intake on the parent system.

You cannot define exhaust-only at the system level because eQUEST will not allow the supply air to be set to zero. I believe 10 CFM is the lowest possible value.

Good luck,

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From: Andres Franco [mailto:andres.franco at dinpro.com.co]
Sent: Wednesday, November 07, 2012 7:47 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] Extraction System question

Dear all, first of all I will say tnx for all your valuable help, always I found it so useful, secondly, I want to ask you: if I need to model a system for extraction purposes only, that is possible?, how can I model it?, thanks' in advance and best regards.

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