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<DIV><FONT face=Arial size=2>Greetings-</FONT></DIV>
<DIV><FONT face=Arial size=2>Does not APPG3.1.3.11 Address this? It states
the heat of rejection for the chillers must be a cooling tower. It further
describes the condenser water requirements.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Anybody else see anything?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Hope this helps. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Regards,</FONT></DIV>
<DIV><FONT face=Arial size=2>W. Peter Anderson, P.E<BR>JP Engineering<BR>41
Mechanic Street<BR>Windsor, CT 06095<BR>Ph: 860/688-5223<BR>Fax:
860/688-5269</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=xupingjessica@gmail.com href="mailto:xupingjessica@gmail.com">Jessica
XP</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=bldg-sim@lists.onebuilding.org
href="mailto:bldg-sim@lists.onebuilding.org">bldg-sim</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, March 20, 2008 11:33
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Bldg-sim] Water or air-cooled
chillers in baseline models?</DIV>
<DIV><BR></DIV>
<DIV>
<P class=MsoNormal
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align=left><SPAN lang=EN-US
style="FONT-SIZE: 9.5pt; FONT-FAMILY: Arial; mso-font-kerning: 0pt">Dear
folks,</SPAN></P></DIV>
<DIV> </DIV>
<DIV>APP G3.1.3.7 specifies centrifugal chillers in baseline models where
conditioned area is greater than 22,296 m2. I always take them as water-cooled
chillers by default.</DIV>
<DIV> </DIV>
<DIV>Today one of my clients challenged why air-cooled centrifugal chillers
can't be modeled in the baseline. His argument is that there is not any
"water-cooled" explicitly specified in G3.1.3.7, but there are air-cooled
centrifugal chillers available in the market.</DIV>
<DIV> </DIV>
<DIV>I was attemping to convince him of my understanding by searching ASHRAE
90.1 and the associated user manual. But I failed to find any evidence. I
doubted if I was wrong.</DIV>
<DIV> </DIV>
<DIV>Is there anyone in this forum who can give me an answer? And if I am
still right, how can I convince my client who is hungry for points of EA
cr1?</DIV>
<DIV> </DIV>
<DIV>Tons of thanks in advance.</DIV>
<DIV> </DIV>
<DIV>Jessi</DIV>
<P>
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