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<title>Re: [Bldg-sim] Apendix G3.1.2.9</title>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Fareed,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Set your supply air to room temp delta t
equivalent to 20F. Run the sim, if I am not mistaken this should generate
usable airflow quantities to be used in point 9. Make sure you have
oversizing in place before any of this. I have not been told this but I
think G is set up to be done step by step from the beginning. In some
instances you need to update your model in order to proceed with the next
step. Good luck.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Kevin<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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</span></font></div>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Fareed Syed
[mailto:syedf@progressiveae.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, March 24, 2010
9:29 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Gregg Liddick;
Kimberly@NorthernArchitects.com; <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Apendix
G3.1.2.9</span></font><font size=3 face="Times New Roman"><span
style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'>Hi Greg,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'>My basic question
is which cfm do I take to calculate Pfan? Just the supply to come up with
kW/cfm or sum of supply, return, relief, and exhaust fans?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Fareed
Syed EIT, LEED<sup>®</sup> AP<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Mechanical
Engineer<b><span style='font-weight:bold'> </span></b><br>
<img width=200 height=40 id="_x0000_i1027"
src="cid:image002.jpg@01CACB6D.54C48700"
alt="cid:image001.png@01C9B834.C9D7E7F0"> <o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
face=Calibri><span style='font-size:11.0pt'>1811 4 Mile Rd NE</span></font></st1:address></st1:Street><br>
<st1:place w:st="on"><st1:City w:st="on">Grand Rapids</st1:City>, <st1:State
w:st="on">MI</st1:State> <st1:PostalCode w:st="on">49525</st1:PostalCode></st1:place><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Calibri><span
style='font-size:11.0pt'>Phone: 616.361.2664 ext. 3247<br>
Direct: 616.447.3447<br>
Fax: 616.361.1493 <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Calibri><span
style='font-size:11.0pt'><a href="mailto:syedf@progressiveae.com">syedf@progressiveae.com</a><br>
<a href="http://www.progressiveae.com/">www.progressiveae.com</a><br>
<br>
</span></font><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Segoe UI"><span
style='font-size:10.0pt;font-family:"Segoe UI";color:#1F497D'><o:p> </o:p></span></font></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Gregg Liddick
[mailto:gliddick@theepstengroup.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, March 24, 2010
9:18 AM<br>
<b><span style='font-weight:bold'>To:</span></b>
Kimberly@NorthernArchitects.com; Fareed Syed; <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> RE: [Bldg-sim] Apendix
G3.1.2.9<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'>Hi Kim,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'>I’m fairly certain that
there’s no specific guidance in Appendix G. What most people do is
break it up so that it’s proportional to the proposed case. For
example if the baseline fan power is 34.5 kW and the actual parameters call for
20 kW supply and 10 kW return you would break the baseline case up into 23 kW
supply and 11.5 kW return. I hope that helps.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:11.0pt;font-family:"Times New Roman";color:black'>Gregg
Liddick, EIT, LEED<sup>®</sup> AP</span></font><font color=black><span
style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Calibri><span
style='font-size:11.0pt;color:black'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:10.0pt;font-family:"Times New Roman";color:black'>The Epsten
Group, Inc.</span></font><font color=black><span style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;font-family:
"Times New Roman";color:black'>429 Edgewood Avenue</span></font></st1:address></st1:Street><font
color=black><span style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;font-family:
"Times New Roman";color:black'>Atlanta</span></font></st1:City><font size=2
color=black face="Times New Roman"><span style='font-size:10.0pt;font-family:
"Times New Roman";color:black'> <st1:State w:st="on">GA</st1:State> <st1:PostalCode
w:st="on">30312</st1:PostalCode></span></font></st1:place><font color=black><span
style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:10.0pt;font-family:"Times New Roman";color:black'>Phone: 404-577-0370
ext. 102</span></font><font color=black><span style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:10.0pt;font-family:"Times New Roman";color:black'>Fax:
404-577-1739</span></font><font color=black><span style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face="Times New Roman"><span
style='font-size:10.0pt;font-family:"Times New Roman";color:black'><a
href="http://www.theepstengroup.com" target="_blank"><font color=black><span
style='color:black'>www.theepstengroup.com</span></font></a></span></font><font
color=black><span style='color:black'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#00b050" face="Times New Roman"><span
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style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>
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style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> Kimberly Killian
[mailto:Kimberly@NorthernArchitects.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, March 24, 2010
7:36 AM<br>
<b><span style='font-weight:bold'>To:</span></b> Gregg Liddick;
syedf@progressiveae.com; <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim] Apendix
G3.1.2.9<o:p></o:p></span></font></p>
</div>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt;font-family:"Times New Roman"'>Gregg,<o:p></o:p></span></font></p>
</div>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt;font-family:"Times New Roman"'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt;font-family:"Times New Roman"'>Is there guidance on what portion of the
Pfan goes to each? What percentage goes to supply, what percentage to return,
etc?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt;font-family:"Times New Roman"'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'>Kimberly
Killian<br>
Northern Architects, Inc.<br>
<st1:Street w:st="on"><st1:address w:st="on">207 King Street Suite 3</st1:address></st1:Street><br>
<st1:place w:st="on"><st1:City w:st="on">Burlington</st1:City> <st1:State
w:st="on">VT</st1:State> <st1:PostalCode w:st="on">05401</st1:PostalCode></st1:place><br>
T: 802-658-1953<br>
F: 802-658-2975<o:p></o:p></span></font></p>
</div>
<div style='border:none;border-left:solid black 2.25pt;padding:0in 0in 0in 4.0pt'>
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<hr size=2 width="100%" align=center>
</span></font></div>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'>Original
message<br>
From: "Gregg Liddick" <br>
To: syedf@progressiveae.com; <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
Received: 3/23/2010 5:24:39 PM<br>
Subject: Re: [Bldg-sim] Apendix G3.1.2.9<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'>No, you use only the fan supply cfm to
calculate the total fan power, then cut that fan power up into supply, return,
etc.</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'>Best Regards,</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Gregg
Liddick, EIT, LEED<sup>®</sup> AP<font color=black><span style='color:black'> </span></font><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=black face=Calibri><span
style='font-size:11.0pt;color:black'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>The
Epsten Group, Inc.<font color=black><span style='color:black'> </span></font><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
face=Calibri><span style='font-size:11.0pt'>429 Edgewood Avenue</span></font></st1:address></st1:Street><font
color=black><span style='color:black'> </span></font><o:p></o:p></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=2
face=Calibri><span style='font-size:11.0pt'>Atlanta</span></font></st1:City> <st1:State
w:st="on">GA</st1:State> <st1:PostalCode w:st="on">30312</st1:PostalCode></st1:place><font
color=black><span style='color:black'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Phone: 404-577-0370
ext. 102<font color=black><span style='color:black'> </span></font><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Fax:
404-577-1739<font color=black><span style='color:black'> </span></font><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><a
href="http://www.theepstengroup.com/" target="_blank"><font color=black><span
style='color:black'>www.theepstengroup.com</span></font></a><font color=black><span
style='color:black'> </span></font><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face=Calibri><span
style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Please
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style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
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style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
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style='font-size:11.0pt;color:#1F497D'> </span></font><o:p></o:p></p>
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<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><font size=2 face=Calibri><span style='font-size:11.0pt;
font-weight:bold'>From:</span></font></b> bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Fareed Syed<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, March 23, 2010 5:11
PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">bldg-sim@lists.onebuilding.org</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] Apendix
G3.1.2.9<o:p></o:p></p>
</div>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Hello
All,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>I
am trying to understand the stated appendix for the baseline model. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>When
I am calculating the Pfan for a system, do I need add up supply, return, system
and room exhaust cfm’s? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>I
got this comment from GBCI: “<i><span style='font-style:italic'>R<font
color=black><span style='color:black'>evise the sum of the supply, return,
exhaust, and relief fans for each HVAC system to be equal to the volume
calculated in G3.1.2.8 and power calculated in G3.1.2.9 (where CFM refers to
supply air volume).”</span></font> </span></i><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Please
let me know your input on how to calculate Pfan.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Fareed
Syed EIT, LEED<sup>®</sup> AP<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Mechanical
Engineer<b><span style='font-weight:bold'> </span></b><br>
<img border=0 width=200 height=40 id="Picture_x005f_x0020_1"
src="cid:image002.jpg@01CACB6D.54C48700"
alt="cid:image001.png@01C9B834.C9D7E7F0"> <o:p></o:p></span></font></p>
<p class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><font size=2
face=Calibri><span style='font-size:11.0pt'>1811 4 Mile Rd NE</span></font></st1:address></st1:Street><br>
<st1:place w:st="on"><st1:City w:st="on">Grand Rapids</st1:City>, <st1:State
w:st="on">MI</st1:State> <st1:PostalCode w:st="on">49525</st1:PostalCode></st1:place><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Calibri><span
style='font-size:11.0pt'>Phone: 616.361.2664 ext. 3247<br>
Direct: 616.447.3447<br>
Fax: 616.361.1493 <o:p></o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=2 face=Calibri><span
style='font-size:11.0pt'><a href="mailto:syedf@progressiveae.com">syedf@progressiveae.com</a><br>
<a href="http://www.progressiveae.com/">www.progressiveae.com</a><br>
<br>
<br>
<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'> <o:p></o:p></span></font></p>
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