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<div class=Section1>
<p class=MsoNormal><span style='color:#1F497D'>I don’t think that’s it. The
PTHP system uses 600% more fan energy than the fan coil system. It’s 205,000
kWh for the PTHP system and only 28,980 kWh for the FC system.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-family:"Franklin Gothic Demi","sans-serif";
color:navy'>Robby Oylear,</span><span style='font-family:"Franklin Gothic Demi","sans-serif";
color:#004080'> </span><span style='font-family:"Franklin Gothic Demi","sans-serif";
color:navy'>LEED</span><span style='font-size:8.0pt;font-family:"Franklin Gothic Demi","sans-serif";
color:navy;position:relative;top:-2.0pt;mso-text-raise:2.0pt'>®</span><span
style='font-family:"Franklin Gothic Demi","sans-serif";color:navy'> AP</span><span
style='font-family:"Franklin Gothic Demi","sans-serif";color:#004080'><o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:navy'>Mechanical
Engineer<o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:10.0pt;color:navy'>direct:
206.788.4571<o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt;color:navy'>cell:
206.354.2721<o:p></o:p></span></i></p>
<p class=MsoNormal><u><span style='font-size:7.5pt;font-family:"Arial","sans-serif";
color:blue'>www.</span></u><span style='font-size:8.0pt;font-family:"Arial","sans-serif";
color:#1F497D'><a href="http://www.rushingco.com/"
title="blocked::http://www.rushingco.com/"><span style='font-size:7.5pt'>rushingco.com</span></a></span><span
style='color:#1F497D'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></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><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Keith
Swartz<br>
<b>Sent:</b> Friday, January 23, 2009 12:22 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Fan Coil Fan Energy<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>Robby,<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>The PTHP system not only has a fan that recirculates inside air
across the inside coil (evaporator coil when cooling, condenser coil when
heating), but it also has a fan to blow outside air across the outside coil
(condenser when cooling, evaporator when heating). The fan coil has only the
inside fan. Perhaps the program is accounting for the energy for the outside
coil fan, which might explain the 15% additional fan energy.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'><o:p> </o:p></span></p>
<div>
<div>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:navy'>_____________________</span><span style='color:navy'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'><ns0:PersonName
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>Keith Swartz</span><span
class=msoIns><ins cite="mailto:Keith%20Swartz" datetime="2009-01-23T14:11"></ns0:PersonName></ins></span></span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>, P.E.,
LEED AP<br>
Energy Engineer / Senior Project Manager<br>
</span><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'><ns0:PlaceName
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>Energy</span><span
class=msoIns><ins cite="mailto:Keith%20Swartz" datetime="2009-01-23T14:11"></ns0:PlaceName></ins></span></span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> </span><span
style='font-size:10.0pt;font-family:"Times New Roman","serif"'><ns0:PlaceType
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>Center</span><span
class=msoIns><ins cite="mailto:Keith%20Swartz" datetime="2009-01-23T14:11"></ns0:PlaceType></ins></span></span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'> of </span><span
style='font-size:10.0pt;font-family:"Times New Roman","serif"'><ns0:place
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><ns0:State
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>Wisconsin</span><span
style='font-family:"Arial","sans-serif"'><br>
</span><span class=msoIns><ins cite="mailto:Keith%20Swartz"
datetime="2009-01-23T14:11"></ns0:State></ins></span></ns0:place><ns0:Street
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><ns0:address
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>455 Science Drive, Suite
200</span><span style='font-family:"Arial","sans-serif"'><br>
</span><span class=msoIns><ins cite="mailto:Keith%20Swartz"
datetime="2009-01-23T14:11"></ns0:address></ins></span></ns0:Street><ns0:place
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><ns0:City
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>Madison</span><span
class=msoIns><ins cite="mailto:Keith%20Swartz" datetime="2009-01-23T14:11"></ns0:City></ins></span><span
style='font-family:"Arial","sans-serif";color:navy'>, </span><ns0:State
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>WI</span><span
class=msoIns><ins cite="mailto:Keith%20Swartz" datetime="2009-01-23T14:11"></ns0:State></ins></span><span
style='font-family:"Arial","sans-serif";color:navy'> </span><ns0:PostalCode
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><span
style='font-family:"Arial","sans-serif";color:navy'>53711</span><span
style='font-family:"Arial","sans-serif"'><br>
</span><span class=msoIns><ins cite="mailto:Keith%20Swartz"
datetime="2009-01-23T14:11"></ns0:PostalCode></ins></span></ns0:place></span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Phone:
608.238.8276 x123<br>
Fax: 608.238.0523<br>
Email: <a href="mailto:kswartz@ecw.org">kswartz@ecw.org</a><br>
Web: <a href="http://www.ecw.org" title="http://www.ecw.org/">www.ecw.org</a><br>
<br>
</span><span style='font-size:10.0pt;font-family:"Times New Roman","serif"'><ns0:place
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><ns0:PlaceName
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><b><span
style='font-family:"Arial","sans-serif";color:navy'>Energy</span></b><span
class=msoIns><ins cite="mailto:Keith%20Swartz" datetime="2009-01-23T14:11"></ns0:PlaceName></ins></span><b><span
style='font-family:"Arial","sans-serif";color:navy'> </span></b><ns0:PlaceType
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><b><span
style='font-family:"Arial","sans-serif";color:navy'>Center</span></b><span
class=msoIns><ins cite="mailto:Keith%20Swartz" datetime="2009-01-23T14:11"></ns0:PlaceType></ins></span><b><span
style='font-family:"Arial","sans-serif";color:navy'> </span></b><ns0:PlaceType
w:insAuthor="Keith Swartz" w:insDate="2009-01-23T14:11:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2009-01-23T14:11:00Z"><b><span
style='font-family:"Arial","sans-serif";color:navy'>University<br>
</span></b><span class=msoIns><ins cite="mailto:Keith%20Swartz"
datetime="2009-01-23T14:11"></ns0:PlaceType></ins></span></ns0:place></span><i><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:navy'>Your
gateway to sustainable design training and online education programs.<br>
</span></i><span style='color:navy'><a href="http://www.ecw.org/university/"
title="http://www.ecw.org/university/"><span style='font-size:10.0pt;
font-family:"Arial","sans-serif"'>www.ecw.org/university/</span></a></span><o:p></o:p></p>
</div>
</div>
<div>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>
<hr size=2 width="100%" align=center>
</span></div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Robby Oylear
[mailto:robbyo@rushingco.com] <br>
<b>Sent:</b> Friday, January 23, 2009 12:43 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Fan Coil Fan Energy</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’m comparing two systems one is a 4-pipe fan coil system
and one is a PTHP system. All of the savings between the two runs seem to
make sense except for a large difference in fan energy between the two. I
don’t have detailed product information on the actual fan energy so I currently
have the same kW/CFM value input for both systems. The fan energy of the
fan coil system is 85% less than the PTHP system. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I believe the problem lies with the fan coil system, because
it doesn’t have an option available for “Fan Control”. I have the Indoor
Fan Mode set to Intermittent, which is how I believe the system would actually
operate since ventilation air is being delivered from a whole house fan. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Can anyone explain to me how the FC system calculates fan
power? Why is there no ability to change the fan control option?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-family:"Franklin Gothic Demi","sans-serif"'>Robby
Oylear, LEED</span><span style='font-size:8.0pt;font-family:"Franklin Gothic Demi","sans-serif";
position:relative;top:-2.0pt;mso-text-raise:2.0pt'>®</span><span
style='font-family:"Franklin Gothic Demi","sans-serif"'> AP<o:p></o:p></span></p>
<p class=MsoNormal><i><span style='font-size:10.0pt'>Mechanical Engineer</span></i><i><span
style='font-size:10.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></i></p>
<p class=MsoNormal><span style='font-size:10.0pt'>direct: 206.788.4571<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt'>cell: 206.354.2721</span><span
style='font-size:12.0pt'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-bottom:3.0pt'><u><span style='font-size:7.5pt;
color:blue'>www.</span></u><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><a
href="http://www.rushingco.com" title="blocked::http://www.rushingco.com/"><span
style='font-size:7.5pt'>rushingco</span><span style='font-size:7.5pt;
font-family:"Calibri","sans-serif"'>.com</span></a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Arial","sans-serif"'><img
border=0 width=95 height=41 id="Picture_x005f_x0020_1"
src="cid:image001.jpg@01C97D55.FE21F420" alt="Logo_B&W_1"></span><o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
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