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--></style></head><body lang="EN-US" link="blue" vlink="purple"><div class="WordSection1"><p class="MsoNormal"><span style="color:#1f497d">Can you use PVVT, but configured as you would have setup the heat pump?</span></p>
<p class="MsoNormal"><span style="color:#1f497d"> </span></p><p class="MsoNormal"><span style="color:#1f497d">David</span></p><div><p class="MsoNormal"><u><span style="color:black"> </span></u><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><span style="font-size:8.0pt;color:black"> </span><span style="color:#1f497d"></span></p><p class="MsoNormal"><b><span style="color:#1f497d">David S. Eldridge, Jr.</span></b><b><span style="color:#244061">, P</span></b><b><span style="color:#1f497d">.</span></b><b><span style="color:#244061">E</span></b><b><span style="color:#1f497d">.</span></b><b><span style="color:#244061">, LEED AP BD+C, BEMP, BEAP, HBDP</span></b><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><span style="color:#1f497d">Project Manager</span><span style="color:#1f497d"></span></p><p class="MsoNormal"><span style="font-size:4.0pt;color:#1f497d"> </span><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><span style="color:#365f91">Direct: (847) 316-92</span><span style="color:#1f497d">24</span><span style="color:#365f91"> | Fax: (</span><span style="color:#1f497d">847</span><span style="color:#365f91">) </span><span style="color:#1f497d">328</span><span style="color:#365f91">-</span><span style="color:#1f497d">4550</span><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><span style="font-size:10.0pt;color:#1f497d"> </span><span style="color:#1f497d"></span></p><p class="MsoNormal"><b><span style="color:#244061">Grumman/Butkus Associates</span></b><span style="color:gray"> </span><span style="color:#365f91">| 820 Davis Street, Suite 300 | Evanston, IL 60201</span><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;color:gray">Energy Efficiency Consultants and Sustainable Design Engineers</span><span style="color:#1f497d"></span></p><p class="MsoNormal"><u><span style="color:black"> </span></u><span style="color:#1f497d"></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial","sans-serif";color:navy"> </span></b><span style="color:#1f497d"></span></p></div><p class="MsoNormal"><span style="color:#1f497d"> </span></p><div>
<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""> <a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Jesse Eisenhart<br>
<b>Sent:</b> Tuesday, April 03, 2012 3:21 PM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> Re: [Equest-users] Water Source Heat Pumps as Dedicated Outside Air Units</span></p>
</div></div><p class="MsoNormal"> </p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif";color:black">I guess I stumped everyone. </span><span style="font-family:Wingdings;color:black">J</span><span style="font-family:"Tahoma","sans-serif";color:black"></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif";color:black"> </span></p><div><p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626">Jesse Eisenhart</span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626">Energy Services | Project Manager</span></p><p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626"> </span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Century Gothic","sans-serif";color:#262626;letter-spacing:1.8pt"><img width="22" height="22" id="_x0000_i1026" src="cid:image001.png@01CD11AE.E4F8BA60" alt="Description: LOGO_for_Email-4">VIRIDIAN|</span><span style="font-family:"Century Gothic","sans-serif";color:#262626">Sustainable Building Consulting</span><span style="font-size:12.0pt;font-family:"Century Gothic","sans-serif";color:#262626"></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626">100 Gamble Road, Little Rock, AR 72211</span></p><p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626">o: 501.227.0648, f: 501.227.8648 </span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626"><a href="mailto:jesse@ViridianUSA.com"><span style="color:#262626;text-decoration:none">jesse@ViridianUSA.com</span></a> | <a href="http://www.viridianusa.com/"><span style="color:#262626;text-decoration:none">www.ViridianUSA.com</span></a> </span></p>
</div><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif";color:black"> </span></p><div><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""> <a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Jesse Eisenhart<br>
<b>Sent:</b> Tuesday, April 03, 2012 11:07 AM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] Water Source Heat Pumps as Dedicated Outside Air Units</span></p>
</div></div><p class="MsoNormal"> </p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">Hello All!</span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">I am having an issue regarding a dedicated outside air unit that takes advantage of a condensing water loop.</span></p><p class="MsoNormal">
<span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">When modeled as a water source heat pump (</span><span style="font-family:"Courier New"">TYPE = HP</span><span style="font-family:"Tahoma","sans-serif"">), eQUEST gives me an error saying this system type is not eligible for “OA-FROM-SYSTEM”. </span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">One of my thoughts is to </span></p>
<p class="MsoListParagraph" style><span style="font-family:Symbol"><span style>·<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-family:"Tahoma","sans-serif"">model all the units served by the outside air unit with no fresh air</span></p>
<p class="MsoListParagraph" style><span style="font-family:Symbol"><span style>·<span style="font:7.0pt "Times New Roman""> </span></span></span><span style="font-family:"Tahoma","sans-serif"">model the dummy zone with a summation of the fresh air required by the spaces served </span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">But then that might interfere with a proper simulation of mixed air temps going into the space. </span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif"">Thoughts?</span></p><p class="MsoNormal">
<span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p>
<p class="Normal"><span style="font-size:8.0pt;font-family:"Courier New"">***ERROR***********************************************************************</span></p><p class="Normal"><span style="font-size:8.0pt;font-family:"Courier New""> OSAU is not a legal SYSTEM-TYPE to be</span></p>
<p class="Normal"><span style="font-size:8.0pt;font-family:"Courier New""> an OA-FROM-SYSTEM. SZRH/PSZ/RHFS/MZS/PMZS/DDS/VAVS/PVAVS/<span style="background:yellow">PVVT</span></span></p><p class="Normal">
<span style="font-size:8.0pt;font-family:"Courier New""> RHFS/IU/PIU/PTGSD/EVAP-COOL/RESYS2 are allowed.</span></p><p class="Normal"><span style="font-size:8.0pt;font-family:"Courier New""> </span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif""> </span></p><p class="MsoNormal">
<span style="font-family:"Century Gothic","sans-serif";color:#262626">Jesse Eisenhart</span></p><p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626">Energy Services | Project Manager</span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626"> </span></p><p class="MsoNormal"><span style="font-size:12.0pt;font-family:"Century Gothic","sans-serif";color:#262626;letter-spacing:1.8pt"><img border="0" width="22" height="22" id="Picture_x0020_1" src="cid:image001.png@01CD11AE.E4F8BA60" alt="Description: LOGO_for_Email-4">VIRIDIAN|</span><span style="font-family:"Century Gothic","sans-serif";color:#262626">Sustainable Building Consulting</span><span style="font-size:12.0pt;font-family:"Century Gothic","sans-serif";color:#262626"></span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626">100 Gamble Road, Little Rock, AR 72211</span></p><p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626">o: 501.227.0648, f: 501.227.8648 </span></p>
<p class="MsoNormal"><span style="font-family:"Century Gothic","sans-serif";color:#262626"><a href="mailto:jesse@ViridianUSA.com"><span style="color:#262626;text-decoration:none">jesse@ViridianUSA.com</span></a> | <a href="http://www.viridianusa.com/"><span style="color:#262626;text-decoration:none">www.ViridianUSA.com</span></a> </span></p>
<p class="MsoNormal"> </p></div></body></html>