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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Georgia","serif"'>Dear Forum,<br>Assuming:<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:38.25pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Georgia","serif"'>10 story hotel with 200 guest rooms facing all compass directions <o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;margin-left:38.25pt;text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span style='font-size:10.0pt;font-family:Symbol'><span style='mso-list:Ignore'>·<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span style='font-size:10.0pt;font-family:"Georgia","serif"'>Each guest room has HVAC and outdoor air from a through-the-wall heat pump<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Georgia","serif"'>How can I create a simple modeling scheme and schedules which will reflect normal occupancy variations?<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Georgia","serif"'>As I think about it, the reality of operation is quite different than a central HVAC unit, because random individual rooms can be completely off, while others are on. Room temperature, ventilation and fan power are all affected. There will be no predictable pattern for which rooms are unused or unoccupied. ASHRAE does have some typical use patterns in their 90.1 User Manual but, for example, they assume 100% on time for fans. That's too coarse for my taste, and will overestimate energy substantially.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Georgia","serif"'>I REALLY don't want to model 200 individual zones with varying schedules! I know that I'm not the first one to wrestle with this idea, so I am hoping for some creative insight from you.<o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Georgia","serif"'>Thanks in advance!<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><img width=336 height=192 id="Picture_x0020_1" src="cid:image003.jpg@01CC8FE7.C58707C0" alt="Description: BPT BizCard JVDII Updated"><o:p></o:p></p><p class=MsoNormal><b><span style='font-size:10.0pt'><o:p> </o:p></span></b></p><p class=MsoNormal><span style='font-size:10.0pt'>Tolerance is not agreement. Tolerance is precisely the willingness to restrain from the use of coercion. (and who hasn’t experienced the benefit of respectful, constructive <u>dis</u>agreement?)</span><b><span style='font-size:10.0pt'><o:p></o:p></span></b></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>