<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Hi Ashley:</DIV>
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<DIV>Don't know what is "legal" in LEED, but try reducing your semsible loads fraction for the kitchen and laundry down (say to 0.1). Perhaps assuming much heat goes out the exhausts for these items.</DIV>
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<DIV>Also, increase your HVAC airflows.</DIV>
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<DIV>Worth a try.</DIV>
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<B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> "Weekly, Ashley" <aweekly@pryor-morrow.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> equest-users@lists.onebuilding.org<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Wed, September 29, 2010 1:48:38 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> [Equest-users] Auto-size HVAC from Detailed Mode<BR></FONT><BR>
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<P class=MsoNormal>Hello everyone. I’m working on a baseline 2-story residential model using PTAC’s for LEED. I’m having problems complying with the unmet hours in several locations. I have commercial cooking equipment and laundry machines as my only large loads. I have entered my calculated heating and cooling capacities and my calculated CFM for each space into detailed mode. To help with my unmet hours, I bumped my sizing ratio up to 1.25 and set my throttling range at 6. Still high unmet hours. I was wondering if there is a way to switch heating and cooling capacities back to auto-size from detailed mode or do I just have to bump my capacities up until they cover my hours?</P>
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<P class=MsoNormal><IMG id=Picture_x0020_1 alt=aweekly src="cid:1.1373000654@web52806.mail.re2.yahoo.com" width=403 height=126></P>
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