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--></style></head><body lang="EN-US" link="#0563C1" vlink="#954F72"><div class="WordSection1"><p class="MsoNormal">Hello,</p><p class="MsoNormal"> </p><p class="MsoNormal">I have 12 storey multi-family building in PA. Corridors are served by Makeup Air units with high CFM (0.9 CFM/sq.ft). Apartment units are served by split fan coil units (dX cooling and hot water boiler). Apartment bathrooms have continuously running exhaust fans of 30 CFM each.</p><p class="MsoNormal"> </p><p class="MsoNormal">How will be apartment ventilation modeled for proposed case?</p><p class="MsoListParagraphCxSpFirst" style="text-indent:-.25in;mso-list:l1 level1 lfo1"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman""> </span></span>Will it be assumed that Outside Air is coming through infiltration?</p><p class="MsoListParagraphCxSpMiddle" style="text-indent:-.25in;mso-list:l1 level1 lfo1"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman""> </span></span>Do I need to put Outdoor Air flow value for apartments in eQUEST manually? Would this value be zero since apartments are naturally ventilated?</p><p class="MsoListParagraphCxSpMiddle" style="text-indent:-.25in;mso-list:l1 level1 lfo1"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman""> </span></span>Should I take supply fan on cycling for fan coil units?</p><p class="MsoListParagraphCxSpLast" style="text-indent:-.25in;mso-list:l1 level1 lfo1"><span style="mso-list:Ignore">4)<span style="font:7.0pt "Times New Roman""> </span></span>What would be the source of exhaust for the bathroom? Would it be infiltration or air handler?</p><p class="MsoNormal">How will be the apartment ventilation modeled in the baseline case?</p><p class="MsoListParagraph" style="text-indent:-.25in;mso-list:l0 level1 lfo2"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman""> </span></span>Baseline system would be PTAC for apartments. Since Outside Air will be provided through PTAC, should the supply fans be set for continuous operation?</p><p class="MsoNormal">As I understand that this is pretty common situation in multi-family buildings. I am interested in knowing that how other energy modelers work on this scenario.</p><p class="MsoNormal"> </p><p class="MsoNormal">Thanks,</p><p class="MsoNormal"> </p><p class="MsoNormal">Sunayana</p></div></body></html>