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</o:shapelayout></xml><![endif]--></head><body lang=FR-CA link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span lang=EN-CA>Dear TRNSYS users,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA>We encounter a problem that, using the heating and cooling function in a simple building zone, the results show heating or cooling at hours where the air node temperature is within the imposed 20-23 °C limits. Heating and cooling power are set to unlimited, the building zone has 1 exterior wall with a window, concrete floor and ceiling and lightweight internal walls.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA>TRNSYS17, Trnbuild 2.0<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA>(see attached file e.g. hour 12, 14, 66, 68, 70, 83)<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA>Any suggestions?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA>Maarten Sourbron<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA>Université Laval<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA>Québec, Canada<o:p></o:p></span></p></div></body></html>