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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Outside air volume in 62.1 is a function of area, occupant
density, and system. If your area, system, and OA volume are all
fixed parameters, it would seem all you can do is solve for occupant density.<o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Paul Riemer<o:p></o:p></span></p>
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<p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b>On Behalf Of </b>John
Aulbach<br>
<b>Sent:</b> Monday, March 23, 2009 11:31 AM<br>
<b>To:</b> RobertWichert<br>
<b>Cc:</b> BLDG-SIM<br>
<b>Subject:</b> Re: [Bldg-sim] ASHRAE 62.1<o:p></o:p></span></p>
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<p class=MsoNormal>Robert:<o:p></o:p></p>
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<p class=MsoNormal>I am unsure as to what you mean trying to get an existing
building, especially an older one, to comply with 62.1. It probably WON'T.<o:p></o:p></p>
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<p class=MsoNormal>Also, the first CA Title-24 was 1977. So it probably flew
to the CA Mechanical Code at the time (Uniform Building Code).<o:p></o:p></p>
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<p class=MsoNormal>John Aulbach<br>
<br>
--- On <b>Mon, 3/23/09, RobertWichert <i><robert@wichert.org></i></b>
wrote:<o:p></o:p></p>
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From: RobertWichert <robert@wichert.org><br>
Subject: [Bldg-sim] ASHRAE 62.1<br>
To: <br>
Cc: "BLDG-SIM" <bldg-sim@lists.onebuilding.org><br>
Date: Monday, March 23, 2009, 8:49 AM<o:p></o:p></p>
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<p class=MsoNormal>I am working on an existing building, trying to show
compliance with ASHRAE 62.1. The supply and return diffusers are in the
ceiling and that forces dividing by a 0.8 factor that increases the outside
air requirement by 25%. The building was designed in the late sixties to CA
T-24. It appears to have about 20% outside air. This seems pretty good, at
first look, but it doesn't seem to satisfy 62.1. Any and all advice will be
appreciated.<br>
<br>
<br>
-- Robert P. Wichert, P.Eng.<br>
+1 916 966 9060<br>
FAX +1 916 966 9068<br>
<br>
<br>
<br>
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