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    <div class="moz-cite-prefix"><font size="-1"><font face="Arial">Hi
          meryem,<br>
          <br>
          I think you use an automatic heat transfert calculation for a
          boundary or an external wall in trnbuild.<br>
          Automatic Heat transferts are only allowed for internal wall.
          <br>
          Change that into 'user defined', and you model will run fine.<br>
          <br>
          Hope this helps.<br>
          Best regards<br>
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          <div style="font-size: 12px" align="right"> <span
              style="font-size: 18px"><b>Adrien JEZEQUEL</b></span><br>
            Simulation Dynamique - Calculs numériques<br>
            <br>
            62 rue du Bolliet<br>
            73230 SAINT-ALBAN-LEYSSE<br>
            Tél : +33(0) 479 750 029<br>
            Fax : +33(0) 479 852 122<br>
            <span> <a href="mailto:a.jezequel@itz.biz">a.jezequel@itf.biz</a>
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            <span> <a href="http://www.itf.biz">www.itf.biz</a> </span>
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      Le 09/09/2014 15:44, meryem serghini a écrit :<br>
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    <blockquote
cite="mid:CALtqRNSdfWQBZ687-1Owwfq2pguFemt0O3AP0AijPLGWRYBC8Q@mail.gmail.com"
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        <p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
              style="font-size:14pt;font-family:Arial,sans-serif;color:black">Hello,</span></i></p>
        <p class="MsoNormal" style="margin-bottom:0.0001pt"><span
            style="font-size:14pt;font-family:Arial,sans-serif;color:black"> </span></p>
        <p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
              style="font-size:14pt;font-family:Arial,sans-serif;color:black"> In
              my project
              TRNSYS version 17, when I run the calculation, I get an
              error that I cannot
              fix:</span></i></p>
        <p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
              style="font-size:14pt;font-family:Arial,sans-serif;color:black">******Fatal
              Error at time: 0.000000 Generated by Unit:
              56Generated by Type: 56 Message: Error in automatic
              calculation for heat
              transfer surface 0 or its adjacent surface!: Automatic
              heat transfer
              calculation Is Only  Allowed on surfaces
              Within a zone. Please check building input file (.  bui)!*</span></i><span
style="font-size:14pt;font-family:Arial,sans-serif;color:black"></span></p>
        <p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
              style="font-size:14pt;font-family:Arial,sans-serif;color:black"> </span></i></p>
        <p class="MsoNormal" style="margin-bottom:0.0001pt"><i><span
              style="font-size:14pt;font-family:Arial,sans-serif;color:black">enclosed
              my project </span></i><span
            style="font-size:14pt;font-family:Arial,sans-serif;color:black"></span></p>
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      <pre wrap="">_______________________________________________
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</pre>
    </blockquote>
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