<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV>David,</DIV>
<DIV> </DIV>
<DIV>My understanding is that there is no difference between the relief fan and the return fan if the kw/cfm and the return CFM are the same from the perspective of energy consumption.</DIV>
<DIV>Please correct me if I am wrong.</DIV>
<DIV> </DIV>
<DIV>Shaojie<BR><BR>--- On <B>Tue, 6/16/09, David Dowling <I><David.Dowling@WestPlainsEngineering.com></I></B> wrote:<BR></DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid"><BR>From: David Dowling <David.Dowling@WestPlainsEngineering.com><BR>Subject: Re: [Equest-users] Gravity Relief Vs Power Relief<BR>To: equest-users@lists.onebuilding.org<BR>Date: Tuesday, June 16, 2009, 12:30 PM<BR><BR>
<DIV class=plainMail>When I specify the return fan as relief within the wizard interface, it<BR>dose not show a return fan being specified in the detailed interface.<BR>How dose the detailed interface represent the return fan as relief<BR>within the detailed interface when it has been specified in the wizard<BR>interface?<BR><BR><BR>David Dowling<BR>Mechanical Designer<BR>WEST PLAINS ENGINEERING, INC.<BR>1750 Rand Road<BR>Rapid City, SD  57702<BR>Phone: (605) 348-7455  Fax: (605) 348-9445<BR><A href="http://us.mc581.mail.yahoo.com/mc/compose?to=david.dowling@westplainsengineering.com" ymailto="mailto:david.dowling@westplainsengineering.com">david.dowling@westplainsengineering.com</A><BR>www.westplainsengineering.com<BR><BR><BR><BR><BR>-----Original Message-----<BR>From: B. Fountain [mailto:<A href="http://us.mc581.mail.yahoo.com/mc/compose?to=bfountain@greensim.com" ymailto="mailto:bfountain@greensim.com">bfountain@greensim.com</A>] <BR>Sent:
 Tuesday, June 16, 2009 10:07 AM<BR>To: David Dowling<BR>Cc: <A href="http://us.mc581.mail.yahoo.com/mc/compose?to=equest-users@lists.onebuilding.org" ymailto="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</A><BR>Subject: Re: [Equest-users] Gravity Relief Vs Power Relief<BR><BR>In the wizard, you can specify whether the return fan is relief, return<BR>or<BR>none (gravity relief).  Same in detailed interface.<BR><BR>> Is it possible in eQUEST to compare an air handler with powered relief<BR>> vs gravity relief?  If so, can this be done within the wizard<BR>interface<BR>> or must it be completed within the detailed interface.<BR>><BR>><BR>><BR>><BR>><BR>> David Dowling<BR>><BR>> Mechanical Designer<BR>><BR>> WEST PLAINS ENGINEERING, INC.<BR>><BR>> 1750 Rand Road<BR>><BR>> Rapid City, SD  57702<BR>><BR>> Phone: (605) 348-7455  Fax: (605)
 348-9445<BR>><BR>> <A href="http://us.mc581.mail.yahoo.com/mc/compose?to=david.dowling@westplainsengineering.com" ymailto="mailto:david.dowling@westplainsengineering.com">david.dowling@westplainsengineering.com</A><BR>><BR>> www.westplainsengineering.com <<A href="http://www.westplainsengineering.com/" target=_blank>http://www.westplainsengineering.com/</A>><BR>><BR>><BR>><BR>><BR>><BR>><BR>><BR>> _______________________________________________<BR>> Equest-users mailing list<BR>> <A href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target=_blank>http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</A><BR>> To unsubscribe from this mailing list send  a blank message to<BR>> <A href="http://us.mc581.mail.yahoo.com/mc/compose?to=EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG"
 ymailto="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</A><BR>><BR><BR><BR>_______________________________________________<BR>Equest-users mailing list<BR><A href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org" target=_blank>http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</A><BR>To unsubscribe from this mailing list send  a blank message to <A href="http://us.mc581.mail.yahoo.com/mc/compose?to=EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG" ymailto="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</A><BR></DIV></BLOCKQUOTE></td></tr></table><br>