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<p class=MsoNormal><span class=SpellE><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Dear</span></font></span><font
size=2 face=Arial><span style='font-size:10.0pt;font-family:Arial'> TRNSYS <span
class=SpellE>users</span>,<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'>I made a project of a solar
cooling system and it seems to correctly run during a yearly simulation, but in
the list file appear a lot of warnings like the following:<o:p></o:p></span></font></p>

<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial;mso-ansi-language:EN-GB'><o:p> </o:p></span></font></p>

<p class=MsoNormal><i style='mso-bidi-font-style:normal'><font size=2
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
mso-ansi-language:EN-GB;font-style:italic;mso-bidi-font-style:normal'>TRNSYS
Message<span style='mso-spacerun:yes'>    </span><span class=GramE>441 :</span>
The inputs to the listed units have not converged at this <span class=SpellE>timestep</span>.
The values at the last iteration will be used and the simulation will proceed.<o:p></o:p></span></font></i></p>

<p class=MsoNormal><i style='mso-bidi-font-style:normal'><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-style:italic;
mso-bidi-font-style:normal'><span style='mso-spacerun:yes'>    </span><span
class=SpellE>Reported</span> <span class=SpellE>information</span><span
class=GramE><span style='mso-spacerun:yes'>  </span>:</span> UNITS: 40<span
style='mso-spacerun:yes'>  </span>24<span style='mso-spacerun:yes'> 
</span>23<span style='mso-spacerun:yes'>  </span>25<span
style='mso-spacerun:yes'>  </span>41<span style='mso-spacerun:yes'> 
</span>27<span style='mso-spacerun:yes'>  </span>52</span></font></i><i
style='mso-bidi-font-style:normal'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial;font-style:italic;mso-bidi-font-style:
normal'><o:p></o:p></span></font></i></p>

<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt;
mso-ansi-language:EN-GB;mso-no-proof:yes'>If I modify the simulation start and
stop time in order to a have a shorter period of time, the simulation give a enormous
but different numbers of warnings and the following error:<o:p></o:p></span></font></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'>*** Warning at time<span
style='mso-spacerun:yes'>       </span>:<span style='mso-spacerun:yes'>     
</span>4144.000000<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>Generated by Unit<span style='mso-spacerun:yes'>     </span>:<span
style='mso-spacerun:yes'>    </span>45<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>Generated by Type<span style='mso-spacerun:yes'>     </span>:<span
style='mso-spacerun:yes'>    </span>16<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>TRNSYS Message<span style='mso-spacerun:yes'>    </span>437 : The total
radiation calculated for one of the surfaces has exceeded the solar constant.
The component solar quantities (beam and diffuse) have been adjusted such that
the sum is equal to the solar constant<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>Reported information<span style='mso-spacerun:yes'>  </span>: Sloped
Surface Radiation Error<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span
style='mso-spacerun:yes'> </span><span style='mso-spacerun:yes'> </span><o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'>*** Fatal Error at time<span
style='mso-spacerun:yes'>   </span>:<span style='mso-spacerun:yes'>     
</span>4144.000000<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>Generated by Unit<span style='mso-spacerun:yes'>     </span>: Not
applicable or not available<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>Generated by Type<span style='mso-spacerun:yes'>     </span>: Not
applicable or not available<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>TRNSYS Message<span style='mso-spacerun:yes'>    </span>450 : The
maximum number of warnings allowed per simulation has been exceeded. Please fix
these warnings or increase the limit on the number of warnings allowed per
simulation (LIMITS command)<o:p></o:p></span></font></i></p>

<p><i style='mso-bidi-font-style:normal'><font size=3 face="Times New Roman"><span
lang=EN-GB style='font-size:12.0pt;mso-ansi-language:EN-GB;font-style:italic;
mso-bidi-font-style:normal;mso-no-proof:yes'><span style='mso-spacerun:yes'>   
</span>Reported information<span style='mso-spacerun:yes'>  </span>: Not
available<o:p></o:p></span></font></i></p>

<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt;
mso-no-proof:yes'><o:p> </o:p></span></font></p>

<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt;
mso-ansi-language:EN-GB;mso-no-proof:yes'>I’m not able to locate the
problem. I think it has no sense to increase the maximum number of warnings
allowed per simulation..<o:p></o:p></span></font></p>

<p><font size=3 face="Times New Roman"><span lang=EN-GB style='font-size:12.0pt;
mso-ansi-language:EN-GB;mso-no-proof:yes'>Thanks to all,<o:p></o:p></span></font></p>

<p><font size=3 face=Arial><span lang=EN-GB style='font-size:12.0pt;font-family:
Arial;mso-ansi-language:EN-GB;mso-no-proof:yes'><o:p> </o:p></span></font></p>

<p><font size=3 face=Arial><span style='font-size:12.0pt;font-family:Arial;
mso-no-proof:yes'>--------------------------------------------------------------</span></font><span
style='mso-no-proof:yes'> <br>
<font color=black><span style='color:black'>Pietro Finocchiaro</span></font> <br>
<font color=black><span style='color:black'>Dipartimento di Ricerche
Energetiche ed Ambientali </span></font><br>
<font color=black><span style='color:black'>Universitą di Palermo</span></font>
<br>
<font color=black><span style='color:black'>Tel: +39 (0)91 236277 </span></font><br>
<font color=black><span style='color:black'>E-mail:</span></font><font
color=blue><span style='color:blue'> </span></font><a
href="mailto:finocchiaro@dream.unipa.it">finocchiaro@dream.unipa.it</a> <br>
</span><font face=Arial><span style='font-family:Arial;mso-no-proof:yes'> </span></font><span
style='mso-no-proof:yes'> <br>
</span><font face=Arial><span style='font-family:Arial;mso-no-proof:yes'> </span></font><span
style='mso-no-proof:yes'> <o:p></o:p></span></p>

<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>

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