<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:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Optima;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","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;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
span.EmailStyle20
{mso-style-type:personal;
font-family:"Arial","sans-serif";
color:windowtext;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.msoIns
{mso-style-type:export-only;
mso-style-name:"";
text-decoration:underline;
color:teal;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.25in 1.0in 1.25in;}
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><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Janne,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Without information on HW loop temp, cooling system type and
control, and heating control, it’s tough to figure out what is going on
with your model. That being said, I will provide what help I can. The
sizing ratios on the coils only increase the coil size and do not increase
airflow which is generally why zones will have hours out of range. Check
the minimum flow ratio and airflow to your zones and make sure they are
appropriate for the loads in the space. With regards to your system setup, make
sure your reheat setpoints and supply air setpoints are consistent.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>For future reference, if you provide the input file, myself or
others on the list serve will be able to better respond to future questions. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Sam<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:#1F497D'>--<br>
Sam Mason<br>
Atelier Ten<br>
sam.mason@atelierten.com<br>
</span><span style='color:#1F497D'> </span><span style='font-size:11.0pt;
font-family:"Calibri","sans-serif";color:#1F497D'><o:p></o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Kairento,
Janne<br>
<b>Sent:</b> Tuesday, January 13, 2009 11:03 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Sizing of equipment<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Hey
All,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>I
am running a load with many zones on 5 floors totaling over 300 zones. There
are some zones with many unmet hours, some of the core, some perimeter. I went
in and changed the sizing ratio of these zone to reduce the unmet heating
hours. I am modeling this building with 9 AHU’s, all VAV w/ reheat. Does
anyone have any insight or suggestions on why or how these unmet hrs. exist. I
have changed the hot water loop flow GPM but it had no effect on the unmet
heating hrs. so I deduced this is not the cause. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p> </o:p></span></p>
<p class=MsoNormal><b>Janne Kairento, E.I.T., LEED AP</b> <br>
<b><i><span style='font-size:10.0pt;color:gray'>Cosentini Associates</span></i></b>
<br>
<span style='font-size:10.0pt;color:gray'>One Broadway</span> <br>
<span style='font-size:10.0pt'><ns0:place w:insAuthor="janne.kairento"
w:insDate="2009-01-13T10:52:00Z" w:endInsAuthor="janne.kairento"
w:endInsDate="2009-01-13T10:52:00Z"><ns0:City w:insAuthor="janne.kairento"
w:insDate="2009-01-13T10:52:00Z" w:endInsAuthor="janne.kairento"
w:endInsDate="2009-01-13T10:52:00Z"><span style='color:gray'>Cambridge</span><span
class=msoIns><ins cite="mailto:janne.kairento" datetime="2009-01-13T10:52"></ns0:City></ins></span><span
style='color:gray'>, </span><ns0:State w:insAuthor="janne.kairento"
w:insDate="2009-01-13T10:52:00Z" w:endInsAuthor="janne.kairento"
w:endInsDate="2009-01-13T10:52:00Z"><span style='color:gray'>MA</span><span
class=msoIns><ins cite="mailto:janne.kairento" datetime="2009-01-13T10:52"></ns0:State></ins></span><span
style='color:gray'> </span><ns0:PostalCode w:insAuthor="janne.kairento"
w:insDate="2009-01-13T10:52:00Z" w:endInsAuthor="janne.kairento"
w:endInsDate="2009-01-13T10:52:00Z"><span style='color:gray'>02142</span><span
class=msoIns><ins cite="mailto:janne.kairento" datetime="2009-01-13T10:52"></ns0:PostalCode></ins></span></ns0:place></span>
<br>
<span style='font-size:10.0pt;color:gray'>Phone: 617.494.9090</span> <br>
<span style='font-size:10.0pt;color:gray'>Fax: 617.494.9292</span> <o:p></o:p></p>
<p><b><span style='font-size:10.0pt;font-family:Optima;color:green'>Please
consider the environment before printing this e-mail</span><o:p></o:p></b></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><br clear=all>
NOTICE OF CONFIDENTIALITY This E-mail message and its attachments (if any) are
intended solely for the use of the addressees hereof. In addition, this message
and the attachments (if any) may contain information that is confidential,
privileged and exempt from disclosure under applicable law. If you are not the
intended recipient of this message, you are prohibited from reading,
disclosing, reproducing, distributing, disseminating or otherwise using this
transmission. Delivery of this message to any person other than the intended
recipient is not intended to waive any right or privilege. If you have received
this message in error, please promptly notify the sender by reply E-mail and
immediately delete this message from your system. <br>
________________________________________________________________________<br>
This e-mail has been scanned for all viruses by Star. The<br>
service is powered by MessageLabs. For more information on a proactive<br>
anti-virus service working around the clock, around the globe, visit:<br>
http://www.star.net.uk<br>
________________________________________________________________________<br>
<br>
______________________________________________________________________<br>
This email has been scanned by the MessageLabs Email Security System.<br>
For more information please visit http://www.messagelabs.com/email <br>
______________________________________________________________________<o:p></o:p></p>
</div>
</body>
</html>