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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 data center space that uses a fluid
cooler for its first stage of cooling and then an air cooled chiller for its
second stage when the fluid cooler can not handle the entire load. I have tried
modeling the fluid cooler as a chiller of type “waterside economizer”,
and putting this chiller on the primary CHW loop. How exactly should the
waterside economizer CW loop be modeled? Since it technically doesn’t
have a condensing water loop, I didn’t think I should add a fluid cooler
to this loop or anything, so I left the CW loop at its default. Should the air
cooled chiller be on a secondary loop or on the same primary loop? I have tried
both ways and have gotten errors. Any help would be much appreciated. Thanks.<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><em><b><i><font size=3 color="#333399" face="Times New Roman"><span
style='font-size:12.0pt;color:#333399;letter-spacing:1.2pt;font-weight:bold'>Brian
Goldsmith, LEED</span></font></i></b></em><b><sup><font size=2 color="#333399"
face="Gill Sans MT"><span style='font-size:10.0pt;font-family:"Gill Sans MT";
color:#333399;letter-spacing:1.2pt;font-weight:bold'>®</span></font></sup><em><i><font
color="#333399" face="Times New Roman"><span style='color:#333399;letter-spacing:
1.2pt'> AP</span></font></i></em></b><o:p></o:p></p>
<p class=MsoNormal><font size=2 color="#333399" face="Times New Roman"><span
style='font-size:11.0pt;color:#333399'>Design Engineer<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 color=green face="Gill Sans MT"><span
style='font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt'><img width=149 height=30 id="_x0000_i1025"
src="cid:image002.jpg@01CBF298.18943CF0"><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=1
color=green face="Gill Sans MT"><span style='font-size:7.5pt;font-family:
"Gill Sans MT";color:green;letter-spacing:1.0pt'>97 E. Brokaw Road</span></font></st1:address></st1:Street><font
size=1 color=green face="Gill Sans MT"><span style='font-size:7.5pt;font-family:
"Gill Sans MT";color:green;letter-spacing:1.0pt'>, No 300<o:p></o:p></span></font></p>
<p class=MsoNormal><U3:PLACE u4:st="on"><U3:CITY u4:st="on"><U1:PLACE u2:st="on"><U1:CITY u2:st="on"><st1:place
w:st="on"><st1:City w:st="on"><font size=1 color=green face="Gill Sans MT"><span
style='font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt'>San Jose</span></font></st1:City></st1:place><font size=1 color=green
face="Gill Sans MT"><span style='font-size:7.5pt;font-family:"Gill Sans MT";
color:green;letter-spacing:1.0pt'></U1:CITY>, <U1:STATE u2:st="on"><st1:State
w:st="on">CA</U1:STATE></st1:State> <U1:POSTALCODE u2:st="on"><st1:PostalCode
w:st="on">95112</U1:POSTALCODE></U1:PLACE></U3:CITY></U3:PLACE></st1:PostalCode><o:p></o:p></span></font></p>
<p class=MsoNormal><strong><b><font size=1 color=green face="Gill Sans MT"><span
style='font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt;font-weight:normal'>main </span></font></b></strong><font
size=1 color=green face="Gill Sans MT"><span style='font-size:7.5pt;font-family:
"Gill Sans MT";color:green;letter-spacing:1.0pt'>408.487.1200<o:p></o:p></span></font></p>
<p class=MsoNormal><strong><b><font size=1 color=green face="Gill Sans MT"><span
style='font-size:7.5pt;font-family:"Gill Sans MT";color:green;letter-spacing:
1.0pt;font-weight:normal'>direct</span></font></b></strong><font size=1
color=green face="Gill Sans MT"><span style='font-size:7.5pt;font-family:"Gill Sans MT";
color:green;letter-spacing:1.0pt'> 408.487.1217</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=1 color="#339966" face="Gill Sans MT"><span
style='font-size:7.5pt;font-family:"Gill Sans MT";color:#339966;letter-spacing:
1.0pt'><a href="http://www.atce.com/" title="http://www.atce.com/">www.atce.com</a>
</span></font><o:p></o:p></p>
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