Do you have an additional hot water loop that you're no longer using still in the file? This message usually pops up when a loop has no load on it, thus during the sizing runs it gets assigned zero flow. This happened to a model I was looking at the other day when a hot water loop served a VAV reheat system but no Reheat DT had been defined, thus there was no load and no flow.<div>
<br></div><div>Make sure the loop you have connected your system to is the correct type as well.</div><div><br></div><div><p class="MsoNormal"><a name="_MailAutoSig"><span style="font-family:"Franklin Gothic Demi","sans-serif";color:#632423">Robby Oylear, </span></a><span style="font-size:10.0pt;font-family:"Franklin Gothic Demi","sans-serif";color:#632423">PE, LEED
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<br><div class="gmail_quote">On Mon, Jul 16, 2012 at 12:22 PM, Nikola Kravik <span dir="ltr"><<a href="mailto:NKravik@willdan.com" target="_blank">NKravik@willdan.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div lang="EN-US" link="blue" vlink="purple"><div><p class="MsoNormal">Hi,<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">I’m trying to model WSHP’s served by Closed circuit Fluid Cooler and Boiler.<u></u><u></u></p>
<p class="MsoNormal">I get the below error if I use WSHP; I<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">I read the users archive from Bill Bishop, Umesh and others about WSHP approximations to PVVT or PSZ but when trying to run simulation it still kicks me out saying “zero design on the hhw loop” anything I’m missing?<u></u><u></u></p>
<p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">Thanks,<u></u><u></u></p><p class="MsoNormal">Nikola<u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><img width="1599" height="897" src="cid:image001.png@01CD634D.88E19850"><u></u><u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal">
<u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal" style="line-height:10.0pt"><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:gray">Nikola Kravik, LEED AP </span><span style="font-size:10.0pt;font-family:"Arial","sans-serif";color:#1f497d"><img width="28" height="33" src="cid:image002.gif@01CD634D.88E19850" alt="Description: cid:image001.gif@01CB9AE0.30118F00"></span><span style="font-size:8.0pt;font-family:"Arial","sans-serif";color:gray"><br>
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