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</o:shapelayout></xml><![endif]--></head><body lang=FR-CA link="#0563C1" vlink="#954F72"><div class=WordSection1><p class=MsoNormal><span style='font-family:"Droid Serif","serif"'>Hello,<o:p></o:p></span></p><p class=MsoNormal><span style='font-family:"Droid Serif","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'>Section 6.5.1.3 of 90.1-2013, requires that the “outdoor air damper does not begin to close to prevent coil freezing due to minimum compressor run time until the leaving air temperature is less than 45°F” <o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'>1) I’m not an expert with refrigeration system, and I want make sure that I have the good interpretation of what is the “leaving air” .<o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-CA style='font-family:"Droid Serif","serif"'>A) “Leaving air” is the mixed air (outside air + return air) that leaves the evaporator coil of a DX cooling system, so it’s pretty much equivalent to the supply air. <o:p></o:p></span></p><p class=MsoNormal style='text-indent:35.4pt'><span lang=EN-CA style='font-family:"Droid Serif","serif"'>B) “Leaving air” is the air leaving the outdoor air damper, so it’s equivalent to the outside air.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'>2) If the answer is A, based on your experience in the field, have you notice any comfort problem by supplying air at 45°F when the unit setpoint is typically at 55°F ?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'>Many thanks,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-CA style='font-family:"Droid Serif","serif"'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-family:"Droid Serif","serif";color:green;mso-fareast-language:FR-CA'>Julien Dutel,</span></b><span style='font-family:"Droid Serif","serif";color:green;mso-fareast-language:FR-CA'> ing., CEM, CMVP<b>.<o:p></o:p></b></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>Direction des secteurs résidentiel, institutionnel et des affaires</span><span style='mso-fareast-language:FR-CA'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>Bureau de l'efficacité et de l'innovation énergétiques<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>Ministère des Ressources naturelles</span><span style='font-size:12.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'><o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>5700, 4e Avenue Ouest, B-406<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>Québec (Québec) G1H 6R1<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>Téléphone : 418 627-6379, poste 8060<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>Téléphone sans frais : 1 877 727-6655<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'>Télécopieur : 418 643-5828</span><span style='font-size:12.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'><o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:FR-CA'> </span><span style='font-size:9.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'><a href="http://www.efficaciteenergetique.mrn.gouv.qc.ca/"><span style='color:blue'>http://www.efficaciteenergetique.mrn.gouv.qc.ca</span></a><o:p></o:p></span></p><p class=MsoNormal><span style='mso-fareast-language:FR-CA'><o:p> </o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span lang=FR style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black;mso-fareast-language:FR-CA'>AVIS DE CONFIDENTIALITÉ</span></b><span style='font-size:9.0pt;font-family:"Droid Serif","serif";color:black;mso-fareast-language:FR-CA'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:0cm;margin-right:0cm;margin-bottom:6.0pt;margin-left:35.4pt'><b><span lang=FR style='font-size:7.5pt;font-family:"Arial","sans-serif";color:black;mso-fareast-language:FR-CA'>Ce message est confidentiel. Il est à l'usage exclusif du destinataire ci-dessus. Si vous n'êtes pas le destinataire visé ou une personne autorisée à lui remettre cette communication, vous êtes par la présente avisé qu'il est expressément interdit</span></b><b><span lang=FR style='font-size:7.5pt;font-family:"Arial","sans-serif";color:red;mso-fareast-language:FR-CA'> </span></b><b><span lang=FR style='font-size:7.5pt;font-family:"Arial","sans-serif";color:black;mso-fareast-language:FR-CA'>de le diffuser, de le distribuer, de le reproduire,</span></b><b><span lang=FR style='font-size:7.5pt;font-family:"Arial","sans-serif";color:red;mso-fareast-language:FR-CA'> </span></b><b><span lang=FR style='font-size:7.5pt;font-family:"Arial","sans-serif";color:black;mso-fareast-language:FR-CA'>d'en dévoiler la teneur ou de prendre quelque mesure fondée sur l'information qui y est contenue. S’il vous a été envoyé par erreur, veuillez en informer immédiatement l'expéditeur par téléphone au 418 627-6379 et détruire ce message ainsi que toute copie de celui-ci.</span></b><span style='font-size:12.0pt;font-family:"Times New Roman","serif";color:black;mso-fareast-language:FR-CA'><o:p></o:p></span></p><p class=MsoNormal><b><span lang=FR style='font-size:20.0pt;font-family:Webdings;color:green;mso-fareast-language:FR-CA'>P</span></b><b><i><span lang=FR style='color:green;mso-fareast-language:FR-CA'> </span></i></b><span style='font-size:7.5pt;font-family:"Verdana","sans-serif";color:green;mso-fareast-language:FR-CA'>Devez-vous vraiment imprimer ce courriel? Si oui, pensez l’imprimer recto-verso!</span><span style='color:black;mso-fareast-language:FR-CA'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>