<div>Hi Lilah </div>
<div> </div>
<div>Well, it looks you are setting up the model on the right trick except for OA which is not clearly stated. I guess you should still put up central make-up air unit although no heating source will be applied there. Meanwhile, try to input calculated fan power (your exhaust fans) into central air unit. </div>
<div> </div>
<div>I dislike EE4 since it has a big black box which you can not trace down the errors. However, I can recall I have encountered similar problems before. What I did is to check some generated file (I could not remember what files they are but basically they are generated together with the calculation even it is incomplete.) where I was able to find out the reason why the system crash. </div>
<div> </div>
<div>No time to check my previous projects but I will let you know which file you should check if I could recall it. <br clear="all"></div>
<div><font face="comic sans ms,sans-serif">Regards, </font></div>
<div><font face="comic sans ms,sans-serif"></font> </div>
<div><font face="comic sans ms,sans-serif">Cheney</font></div>
<div><font face="comic sans ms,sans-serif"></font> </div>
<div><font face="comic sans ms,sans-serif">LinkedIN @ </font><a href="http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b" target="_blank"><font face="comic sans ms,sans-serif">http://ca.linkedin.com/pub/yu-cheney-chen/27/637/72b</font></a><font face="comic sans ms,sans-serif"> </font></div>
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<div class="gmail_quote">On Thu, Jun 9, 2011 at 8:40 AM, Montague, Lilah <span dir="ltr"><<a href="mailto:Lilah.Montague@perkinswill.com">Lilah.Montague@perkinswill.com</a>></span> wrote:<br>
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<p class="MsoNormal">Hello,</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I could REALLY use some help troubleshooting my model. Many thanks in advance!</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am trying to build an EE4 model of a MURB with hydronic (heating only) radiators off central boilers, with ventilation air ducted to each suite from outside, with no central make-up air unit. The ventilation air is drawn in using scheduled operation of washroom exhaust fans. I am modeling the system as 2-pipe fan coil, with zero fan power. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have worked through the errors, and the simulation will start to run, then freezes and goes unresponsive. I am able to generate the loads using the sizing function. No DOE report is generated. Actually when I try to open the (0 kb) DOE file, I get a D2SimViewer error “Out of memory.”</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I have been working through the modelling guide to try to determine what could be causing this, but I have not been able to fix the problem. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">I am not an expert at EE4, so perhaps there is a model-building convention that I have disobeyed. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Any help would be appreciated! I am getting a little desperate, and unfortunately need to model in EE4, as this is the only acceptable software for this project. </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
<p class="MsoNormal">Kind Regards,</p>
<p class="MsoNormal">Lilah</p>
<p class="MsoNormal"> </p>
<p class="MsoNormal"> </p>
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<p class="MsoNormal"><b><span style="COLOR: gray; FONT-SIZE: 9pt">Lilah Montague</span></b><span style="COLOR: gray; FONT-SIZE: 9pt">, B.Eng. EIT LEED<sup>®</sup> AP</span></p>
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