<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:10pt"><DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">For cooling: I usually use a setpoint between 72F and 78F depending on the spaces served with a driftpoint of 85F.</DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">For heating: I usually use a setpoing between 68F and 72F depending on the spaces served with a driftpoint of 65F.</DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">For unconditioned spaces I use a very high cooling set point (95F or higher) and a very low heating set points (35F or lower....depending on your weather location) so that the software won't generate any (or very minimal) loads for these spaces.</DIV>
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<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">I don't believe ASHRAE App G has any specific thermostat set point requirements. You just need to use something reasonable and they have to be the same in proposed and baseline models. A possible exception to this would be if you are using different thermostat setpoints to simulate the reduced energy associated with an unusual systesm such as a displacement ventilation system or radiant cooling or something. There may be some archived info on that approach in the bldg-sim archives.</DIV>
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<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">Hope that helps.</DIV>
<DIV style="FONT-SIZE: 10pt; FONT-FAMILY: arial, helvetica, sans-serif">J<BR></DIV>
<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Original Message ----<BR>From: Jim Pagliaro <Jim@celticenergy.com><BR>To: trace-users@lists.onebuilding.org<BR>Sent: Wednesday, June 18, 2008 3:25:20 PM<BR>Subject: [Trace-users] trane trace<BR><BR>
<DIV><SPAN class=597562219-18062008><FONT face=Arial size=2>hi,</FONT></SPAN></DIV>
<DIV><SPAN class=597562219-18062008><FONT face=Arial size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=597562219-18062008><FONT face=Arial size=2>i have a question about setting "driftpoints" in the trace program. i am doing a base case VS actual design scenario model and i was wondering what anyone normally uses as cooling/heating dry bulb temps and thermostat driftpoints when they are modeling a scenario based on simple ASHRAE guidelines.</FONT></SPAN></DIV>
<DIV><SPAN class=597562219-18062008><FONT face=Arial size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=597562219-18062008><FONT face=Arial size=2>jim</FONT></SPAN></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV align=left><FONT face=Arial size=2></FONT> </DIV>
<DIV align=left><FONT size=2><STRONG> <FONT size=3>James Pagliaro</FONT></STRONG></FONT></DIV>
<DIV align=left><FONT size=2> Energy Engineer</FONT></DIV>
<DIV align=left><FONT size=2> 860.882.1515</FONT></DIV>
<DIV align=left><FONT size=2> 860.882.1593 fax</FONT></DIV>
<DIV align=left><FONT size=2> 413.246.7789 mobile</FONT></DIV>
<DIV align=left><FONT size=2><FONT face=Arial> </FONT><A href="mailto:jim@celticenergy.com" target=_blank rel=nofollow ymailto="mailto:jim@celticenergy.com">jim@celticenergy.com</A></FONT></DIV>
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