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</o:shapelayout></xml><![endif]--></head><body bgcolor=white lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Hello, <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>I would like to modelize a manual night ventilation. For that I need to keep the value of temperature for the time X (for example 17 pm) and compare this value with a set temperature during a given period (for example a night). <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>I don’t know to keep a value in a variable during a given period. Could anyone help me? <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>I began with the following formulas but when the condition of the first variable is not checked it returns 0 and the third variable doesn’t return what I want :<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:windowtext'>T17h = eql(mod(TIME,24),17)*temperature_zone10<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:windowtext'>periode = or(lt(mod(TIME,24),9),gt(mod(TIME,24),17))<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:14.0pt;font-family:"Calibri","sans-serif";color:windowtext'>vnat = gt(T17h,24)*periode*2<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Thanks a lot for your help. <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:windowtext'>Best Regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><p class=MsoNormal><b><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Pauline GELIN<o:p></o:p></span></b></p><p class=MsoNormal><b><span lang=EN-US style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Ingénieur Conception environnementale<o:p></o:p></span></b></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Comic Sans MS";color:#1F497D'><img width=79 height=52 id="Image_x0020_1" src="cid:image001.jpg@01CE40FC.57DFE3F0" alt="cid:image004.jpg@01CE062A.F4C2C000"><o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'><img width=81 height=13 id="Image_x0020_2" src="cid:image002.jpg@01CE40FC.57DFE3F0" alt="cid:image006.jpg@01CE062A.F4C2C000"><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>10 avenue des canuts<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>69120 VAULX EN VELIN<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#1F497D'>T : 04.37.45.33.33 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'>Ligne directe : 04.37.45.33.47<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:9.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="www.katene.coop"><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>www.katene.coop</span></b></a></span><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.quadriplus-groupe.com"><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'>www.quadriplus-groupe.com</span></b></a></span><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#1F497D'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.woopa.coop"><b><span style='color:#1F497D'>www.woopa.coop</span></b></a></span><b><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> <o:p></o:p></span></b></p></div></div></body></html>