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<DIV dir=ltr align=left><SPAN class=203332921-05012009><FONT face=Arial
color=#0000ff size=2>Dear Nick,</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=203332921-05012009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=203332921-05012009><FONT face=Arial
color=#0000ff size=2>I think past discussion on this list agreed that you can
model a cooling system which has very high setpoints. I recall (though
you'll have to check past threads) that there may even have been a CIR which
acknowledged this as legitimate.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=203332921-05012009><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=203332921-05012009><FONT face=Arial
color=#0000ff size=2>Regardless, the practice fulfills the "spirit" of the
ASHRAE standard and LEED. You want to create a faithful model that
predicts something realistic. A 95F stat does the trick (in my
opinion)</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV class=Section1>
<P class=MsoNormal style="TEXT-ALIGN: center" align=center><B
style="mso-bidi-font-weight: normal"><FONT size=4>The Building Performance
Team<BR></FONT></B><B style="mso-bidi-font-weight: normal">James V. Dirkes II,
P.E., LEED AP<BR></B>1631 Acacia Drive NW<BR>Grand Rapids, MI 49504<BR>616
450 8653<o:p></o:p></P>
<P class=MsoNormal><o:p> </o:p></P></DIV>
<DIV> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Nick
Anderson<BR><B>Sent:</B> Monday, January 05, 2009 4:25 PM<BR><B>To:</B> Robby
Oylear; bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] 90.1
Appendix G heating with no cooling on Trace 700<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">The
building is 1.5 million square feet, so 90.1 requires chilled water for the
cooling system. <o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal style="MARGIN-LEFT: 0.5in"><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">“</SPAN><SPAN
style="COLOR: #1f497d">Also, you can change your cooling schedule to something
unreasonably high like 95 degrees, then the cooling should never come on.
As far as I know, this is a legitimate as ASHRAE and LEED do not mandate what
temperatures should be used.”</SPAN><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'"><o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">I had
tried setting the cooling coils to zero capacity and also setting the T-stat so
that no cooling was required. But then it comes up with no heating system
airflow because it uses the cooling system as a basis for heating system airflow
calculations.<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'"><o:p> </o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'">Good
thought though…<o:p></o:p></SPAN></P>
<P class=MsoNormal><SPAN
style="FONT-SIZE: 12pt; COLOR: blue; FONT-FAMILY: 'Arial','sans-serif'"><o:p> </o:p></SPAN></P>
<DIV>
<P class=MsoNormal><B><SPAN
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Lucida Sans Unicode','sans-serif'">Nick
Anderson</SPAN></B><o:p></o:p></P></DIV>
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