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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am trying to model a baseline building of which I
specified a packaged single zone DX furnace system per zone auto size. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>The Model results in well over the allowed ASHRAE 90.1-2004 unmet
hours (300hrs) when I total the number of unmet hours for each space. What
I have been doing is incrementally increasing the sizing ratio for each space until
the system is within the unmet cooling / heating hours respectively. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>What I would like to know, is there a better way to reduce the
number of unmet hours without having to manually enter in the sizing ratio?
What has everyone been doing to reduce the number of unmet hours for systems
that are auto sized? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thank you in advance for any suggestions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold'><img
width=280 height=34 id="_x0000_i1025" src="cid:image001.jpg@01C9E82B.8F2898D0"
align=baseline border=0></span></font></b><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><strong><b><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'>David Dowling</span></font></b></strong><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Mechanical Designer<o:p></o:p></span></font></p>
<p class=MsoNormal><b><i><font size=2 color=navy face=Arial><span
style='font-size:11.0pt;font-family:Arial;color:navy;font-weight:bold;
font-style:italic'>WEST PLAINS ENGINEERING, INC.</span></font></i></b><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>1750 Rand Road</span></font></st1:address></st1:Street><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'>Rapid City</span></font></st1:City><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'>, <st1:State
w:st="on">SD</st1:State> <st1:PostalCode w:st="on">57702</st1:PostalCode></span></font></st1:place><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Phone: (605) 348-7455 Fax: (605) 348-9445<o:p></o:p></span></font></p>
<p class=MsoNormal><u><font size=2 color=navy face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:navy'><a
href="mailto:david.dowling@westplainsengineering.com"
title="mailto:michael.heinrich@westplainsengineering.com">david.dowling@westplainsengineering.com</a></span></font></u><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><u><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><a href="http://www.westplainsengineering.com/"
title="http://www.westplainsengineering.com/">www.westplainsengineering.com</a><o:p></o:p></span></font></u></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
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