Anura,<div><br></div><div>Part 3 of the document linked below discusses how to set-up primary/secondary chilled water distribution loops in eQUEST:</div><div><a href="http://www.energydesignresources.com/media/2654/EDR_DesignGuidelines_%20HVAC_Simulation.pdf">http://www.energydesignresources.com/media/2654/EDR_DesignGuidelines_%20HVAC_Simulation.pdf</a></div>
<div><br></div><div>If that doesn't help you could send your .pd2 & .inp file out and someone could check it for you.</div><div><br></div><div>Hope that helps,</div><div><br></div><div><p class="MsoNormal" style="margin-top:1.0pt">
<a name="_MailAutoSig"><b><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";mso-fareast-font-family:
"Times New Roman";mso-fareast-theme-font:minor-fareast;color:#632423;
mso-no-proof:yes">Robby Oylear, LEED</span></b></a><span><b><sup><span style="font-size:10.0pt;font-family:"Verdana","sans-serif";
mso-fareast-font-family:"Times New Roman";color:#632423;mso-no-proof:yes">®</span></sup></b></span><span><b><span style="font-size:10.0pt;font-family:
"Verdana","sans-serif";mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:
minor-fareast;color:#632423;mso-no-proof:yes"> AP BD+C</span></b></span></p>

<p class="MsoNormal"><span><i><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";mso-fareast-font-family:
"Times New Roman";mso-fareast-theme-font:minor-fareast;color:black;mso-no-proof:
yes">Mechanical Project Engineer</span></i></span></p>

<p class="MsoNormal"><span><i><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";mso-fareast-font-family:
"Times New Roman";mso-fareast-theme-font:minor-fareast;color:black;mso-no-proof:
yes">Energy Analyst</span></i></span></p>

<p class="MsoNormal"><span><i><span style="font-size:8.0pt;font-family:"Verdana","sans-serif";mso-fareast-font-family:
"Times New Roman";mso-fareast-theme-font:minor-fareast;color:black;mso-no-proof:
yes"> </span></i></span></p>

<p class="MsoNormal" style="line-height:115%"><span><b><span style="font-size:8.0pt;line-height:115%;font-family:"Verdana","sans-serif";
mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
color:#632423;mso-no-proof:yes">D</span></b></span><span><span style="font-size:8.0pt;line-height:115%;font-family:"Verdana","sans-serif";
mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
color:#1F497D;mso-no-proof:yes"> </span></span><span><span style="font-size:8.0pt;line-height:115%;font-family:"Verdana","sans-serif";
mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
color:black;mso-no-proof:yes">206-788-4571 |</span></span><span><span style="font-size:8.0pt;line-height:
115%;font-family:"Verdana","sans-serif";mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;color:#BFAB7F;mso-no-proof:yes"> </span></span><span><b><span style="font-size:8.0pt;line-height:
115%;font-family:"Verdana","sans-serif";mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;color:#632423;mso-no-proof:yes">C</span></b></span><span><span style="font-size:8.0pt;line-height:
115%;font-family:"Verdana","sans-serif";mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;color:#A50021;mso-no-proof:yes"> </span></span><span><span style="font-size:8.0pt;line-height:
115%;font-family:"Verdana","sans-serif";mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;color:black;mso-no-proof:yes">206-354-2721</span></span><span><span style="font-size:8.0pt;line-height:
115%;font-family:"Verdana","sans-serif";mso-fareast-font-family:"Times New Roman";
mso-fareast-theme-font:minor-fareast;color:#BFAB7F;mso-no-proof:yes"></span></span></p>

<p class="MsoNormal" style="line-height:115%"><span></span><a href="http://www.rushingco.com/"><span><b><i><span style="font-size:8.0pt;mso-bidi-font-size:11.0pt;line-height:115%;font-family:
"Verdana","sans-serif";mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:
minor-fareast;color:#632423;mso-no-proof:yes">www.rushingco.com</span></i></b></span><span></span></a><span><span style="font-size:7.0pt;line-height:115%;font-family:"Verdana","sans-serif";
mso-fareast-font-family:"Times New Roman";mso-fareast-theme-font:minor-fareast;
color:#1F497D;mso-no-proof:yes"></span></span></p><br><div class="gmail_quote">On Wed, Aug 10, 2011 at 3:23 AM, anura perera <span dir="ltr"><<a href="mailto:perera.anura25@gmail.com">perera.anura25@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Dear All,<br> <br> I am trying to model a chill water system with a primary and secondary loop. I have created the secondary chill water loop and the secondary pumps linked to the primary loop.<br>
 <br>But during simulations there is an error indicating " secondary loop chill water deign flow is zero" in spite there is a user fed value for the secondary flow.<br>
 <br>Thanking in advance for any suggestion to get the simulations running<br><font color="#888888"> <br>Anura 
</font><br>_______________________________________________<br>
Equest-users mailing list<br>
<a href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><br>
To unsubscribe from this mailing list send  a blank message to <a href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><br>
<br></blockquote></div><br></div>