<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"
xmlns:ns0="urn:schemas-microsoft-com:office:smarttags">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<style>
<!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<p class=MsoNormal>I’ve got a 92,000 square foot Industrial building that
I am modeling. If you went by Table G3.1.1A, the baseline system type would
be System 5 – Packaged VAV with reheat.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>However, of the 92,000 square feet, approximately 16,000 sq
ft is conditioned to standard 75/72 degrees, while the remainder is a mixture
of storage, manufacturing, etc, and is heated to 55 and cooled to 120 (no
actual cooling in proposed model, but you’ve got to insert some sort of
cooling system per App G).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>So I really have 16,000 sq ft that is fully conditioned, and
76,000 sq ft that is only partially conditioned (ie the peak thermal load
differs by 10 Btu/h-ft2). <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any guesses how I configure this?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Do I have a packaged VAV system for the 76,000 sq ft of
shop/storage and isolate the 16,000 ft2 of real conditioned space as system 3
per the Exception to G3.1.1? <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Or do I have a packaged VAV system for the 16,000 ft
conditioned space and isolate the 76,000 sq ft as system 3?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>To further complicate things, since the 76,000 sq ft is
split between storage and manufacturing, where there is theoretically an operating
schedule that differs by 40 hours or more a week between these two different
use types, do I actually just end up with ALL system 3 even though the total
net building area is above the 75,000 sq ft cutoff where we’re supposed
to go to System 5?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m confused! Any help would be appreciated.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><u>To recap:<o:p></o:p></u></b></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b>16,000 sq ft office, heated/cooled to 72/75<o:p></o:p></b></p>
<p class=MsoNormal><b>30,000 sq ft of storage with basically no operating hours
per week, heated/cooled to 50/120<o:p></o:p></b></p>
<p class=MsoNormal><b>36,000 sq ft of manufacturing / workshop area that is
used approximately 50 hrs a week, heated/cooled to 50/120<o:p></o:p></b></p>
<p class=MsoNormal><b><o:p> </o:p></b></p>
<p class=MsoNormal><b>Mixture of System 3 and System 5, or ALL system 3?<o:p></o:p></b></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif";color:teal'>GHT
Limited<br>
</span></b><b><span style='font-family:"Arial","sans-serif"'><ns0:PersonName><span
style='color:black'>James Hansen</span></ns0:PersonName></span></b><b><span
style='color:black'>, PE, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Senior Associate</span></b><b><span style='color:black'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><ns0:Street><ns0:address><span
style='color:black'>1010 N. Glebe Rd, Suite 200</span></ns0:address></ns0:Street></span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'><ns0:place><ns0:City><span
style='color:black'>Arlington</span></ns0:City><span style='color:black'>, </span><ns0:State><span
style='color:black'>VA</span></ns0:State><span style='color:black'> </span><ns0:PostalCode><span
style='color:black'>22201-4749</span></ns0:PostalCode></ns0:place></span><span
style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-338-5754 (Cell)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-243-1200 (Office)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:black'>703-276-1376 (Fax)</span><span style='color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:teal'><a
href="http://www.ghtltd.com/"><span style='font-size:10.0pt;color:blue'>www.ghtltd.com</span></a><o:p></o:p></span></p>
<p class=MsoNormal><b><span style='color:#31849B'><o:p> </o:p></span></b></p>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</body>
<!--[object_id=#ghtltd.com#]--><P align=left><FONT size=2><FONT face=Tahoma><FONT color=#0000ff>
<HR>
</FONT></FONT><FONT color=#0000ff><FONT color=#000000><FONT face=Arial>The information contained in this communication is confidential, may be privileged, and is intended only for the use of the addressee. It is the property of GHT Limited. Unauthorized use, disclosure or copying of this communication or any part thereof is strictly prohibited and may be unlawful. If you have received this communication in error, please notify me immediately by return e-mail or by e-mail to </FONT><A href="mailto:ght@ghtltd.com"><FONT face=Arial>ght@ghtltd.com</FONT></A><FONT face=Arial>, and destroy this communication and all copies thereof, including all attachments. Thank you.</FONT></FONT><FONT face=Tahoma color=#000000></FONT></P></FONT></FONT></html>