<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:arial, helvetica, sans-serif;font-size:10pt"><DIV>There definitely seems to be some variability out there on how it's handled.</DIV>
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<DIV>There are several LEED CIRs posted on the LEED website for situations that seem similar to this. My take on it is that if you are only ventilating the spaces, the ventilation fans don't need to be counted as a cooling system; thus, you do not need to model a cooling system for these spaces. However, the fan energy does need to be accounted for in both the proposed and baseline models. So, they basically become energy neutral in the models and/or are treated kind of like a process energy load.</DIV>
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<DIV>If others have a different interpretations, I'd appreciate hearing the feedback.</DIV>
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<DIV>Julia</DIV>
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<DIV style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">----- Original Message ----<BR>From: Kevin Kyte <kkyte@robsonwoese.com><BR>To: "Chatfield, Gary" <Gary.Chatfield@lv.fk.com>; "Howe, Timothy" <Timothy.Howe@stantec.com>; bldg-sim@lists.onebuilding.org<BR>Sent: Tuesday, July 1, 2008 11:40:53 AM<BR>Subject: Re: [Bldg-sim] Appendix G: Cooled space?<BR><BR>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">Did anyone come up with an answer for this? I have a similar situation. My thought would be that it should be considered a cooling system.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">Kevin Kyte</SPAN><SPAN style="COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">, </SPAN><SPAN style="FONT-SIZE: 10pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">EIT, LEED AP</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 11pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">RobsonWoese, Inc.</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">(T) 716-636-1800</SPAN></P>
<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: #1f497d; FONT-FAMILY: 'Calibri', 'sans-serif'">(F) 716-636-1856</SPAN><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Calibri', 'sans-serif'"></SPAN></P>
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<P class=MsoNormal><B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma', 'sans-serif'">From:</SPAN></B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma', 'sans-serif'"> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Chatfield, Gary<BR><B>Sent:</B> Monday, June 30, 2008 12:04 PM<BR><B>To:</B> Howe, Timothy; bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> Re: [Bldg-sim] Appendix G: Cooled space?</SPAN></P></DIV></DIV>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial', 'sans-serif'">Tim</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: 'Arial', 'sans-serif'">My thoughts on this would be that your main system should be sized to provide the fresh air at your cooling temperature to replace the air rejected by the exhaust, and you will probably find this is happening unless your space is negatively pressurized.</SPAN></P>
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<P><B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">Gary Chatfield</SPAN></B><SPAN style="COLOR: navy"></SPAN></P>
<P><I><SPAN style="COLOR: #999999; FONT-FAMILY: 'Arial', 'sans-serif'">LEEDŽ AP</SPAN></I><SPAN style="COLOR: navy"></SPAN></P>
<P><B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">FLACK</SPAN><SPAN style="COLOR: navy"> </SPAN></B><B><SPAN style="FONT-SIZE: 10pt; COLOR: #999999; FONT-FAMILY: 'Arial', 'sans-serif'">+</SPAN><SPAN style="COLOR: navy"> </SPAN></B><B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">KURTZ</SPAN></B><SPAN style="COLOR: navy"></SPAN></P>
<P><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">385 Pilot Road, Suite D. Las Vegas, NV 89119</SPAN><SPAN style="COLOR: navy"></SPAN></P>
<P><B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">Main</SPAN></B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">: 702.897.8181</SPAN><SPAN style="COLOR: navy"></SPAN></P>
<P><B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">Direct</SPAN></B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">: 702.352.9562</SPAN><SPAN style="COLOR: navy"></SPAN></P>
<P><B><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'">Fax: </SPAN></B><SPAN style="COLOR: navy"> </SPAN><SPAN style="FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Arial', 'sans-serif'"> 702.914.6966</SPAN><SPAN style="COLOR: navy"></SPAN></P>
<P><SPAN style="COLOR: navy"><A href="mailto:gary.chatfield@lv.fk.com" target=_blank rel=nofollow ymailto="mailto:gary.chatfield@lv.fk.com"><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Arial', 'sans-serif'">gary.chatfield@lv.fk.com</SPAN></A></SPAN></P></DIV>
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<P class=MsoNormal><B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma', 'sans-serif'">From:</SPAN></B><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: 'Tahoma', 'sans-serif'"> bldg-sim-bounces@lists.onebuilding.org [mailto:bldg-sim-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Howe, Timothy<BR><B>Sent:</B> Thursday, June 26, 2008 6:47 AM<BR><B>To:</B> bldg-sim@lists.onebuilding.org<BR><B>Subject:</B> [Bldg-sim] Appendix G: Cooled space?</SPAN></P></DIV>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial', 'sans-serif'">I have a mechanical room that is conditioned to 95 in cooling through exhaust fans and heated to 65 with unit heaters.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial', 'sans-serif'">Do the exhaust fans constitute as a cooling system? The system would need to provide a sensible capacity of 5 btu/h*ft2 for the mech room to be considered to be a cooled space, which I have not yet calculated.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial', 'sans-serif'">The reason I as is that if these exhaust fans are not considered a cooling system then the baseline cooling system will need to be modeled to complete an accurate LEED model.</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial', 'sans-serif'">Any suggestions?</SPAN></P>
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<P class=MsoNormal><SPAN style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: 'Arial', 'sans-serif'">Tim.</SPAN></P>
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<P class=MsoNormal><B><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial', 'sans-serif'">Timothy Howe, MS, LEEDŽ AP</SPAN></B><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Arial', 'sans-serif'"><BR>Mechanical Engineer<BR>Stantec</SPAN></P></DIV></DIV></DIV></div></body></html>