<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:10pt">I've encountered the same problem. It is easy to add VSD to chillers, pumps and towers. But not sure how to simulate it's control algorithm such as having each chiller simultaneously run at the same loading
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">rather than conventional sequence control.</DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif"> </DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">Glenn<BR><BR></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Original Message ----<BR>From: Jacob T. Blystone <jblystone@icthomasson.com><BR>To: bldg-sim@lists.onebuilding.org<BR>Sent: Thursday, March 13, 2008 10:01:58 PM<BR>Subject: [Bldg-sim] Hartman Loop Modeling<BR><BR>
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<P class=MsoNormal><FONT face=Arial size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Not sure if this has been covered or not, but I am looking for a way to properly model the Hartman Loop in eQuest. I¢m not sure how to do this and was wondering if anyone could provide some insight. Thanks,</SPAN></FONT></P>
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<P class=MsoNormal><FONT face="Swis721 BlkCn BT" color=maroon size=3><SPAN style="FONT-SIZE: 12pt; COLOR: maroon; FONT-FAMILY: 'Swis721 BlkCn BT'">Jacob T. Blystone</SPAN></FONT></P>
<P class=MsoNormal><EM><I><FONT face="Swis721 BlkCn BT" color=maroon size=3><SPAN style="FONT-SIZE: 12pt; COLOR: maroon; FONT-FAMILY: 'Swis721 BlkCn BT'">I. C. Thomasson Associates, Inc.</SPAN></FONT></I></EM></P>
<P class=MsoNormal><FONT face="Swis721 BlkCn BT" color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Swis721 BlkCn BT'">2950 Kraft Dr. Suite 500</FONT><FONT color=maroon><SPAN style="COLOR: maroon"></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Swis721 BlkCn BT" color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Swis721 BlkCn BT'">Nashville</SPAN></FONT><FONT face="Swis721 BlkCn BT" color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Swis721 BlkCn BT'">, TN 37204</SPAN></SPAN></FONT><FONT color=maroon><SPAN style="COLOR: maroon"></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Swis721 BlkCn BT" color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Swis721 BlkCn BT'">Phone: (615) 346-3400</SPAN></FONT><FONT color=maroon><SPAN style="COLOR: maroon"></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Swis721 BlkCn BT" color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Swis721 BlkCn BT'">Fax: (615) 346-3550</SPAN></FONT><FONT color=maroon><SPAN style="COLOR: maroon"></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Swis721 BlkCn BT" color=black size=2><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Swis721 BlkCn BT'">Email: </SPAN></FONT><FONT color=maroon><SPAN style="COLOR: maroon"><A href="mailto:jblystone@icthomasson.com" target=_blank rel=nofollow ymailto="mailto:jblystone@icthomasson.com"><FONT face="Swis721 BlkCn BT" size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Swis721 BlkCn BT'">jblystone@icthomasson.com</SPAN></FONT></A></SPAN></FONT></P>
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