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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">It’s a trade-off, the limit is prescribed for the baseline model but the proposed design may pump horsepower that is called for in the design – however if you
go above the limit then there will have to be some corresponding efficiency to trade-off the net effect of the pump power.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">For your particular project given some constraints it may not be possible to vary pipe size, layout, and
</span><span style="font-size:11.0pt;font-family:Symbol;color:#1F497D">D</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">T enough to achieve the limit – that’s okay if the modeling will still show net project savings from
control of the pumping system and other energy efficiency measures in the project.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">David<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">David S. Eldridge, Jr.</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#244061">, P</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">.</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#244061">E</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">.</span></b><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#244061">,
LEED AP BD+C, BEMP, BEAP, HBDP</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Associate</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#365F91">Direct: (847) 316-92</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">24</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#365F91">
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<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#244061">Grumman/Butkus Associates</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:gray">
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Calibri",sans-serif;color:gray">Energy Efficiency Consultants and Sustainable Design Engineers</span><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Equest-users [mailto:equest-users-bounces@lists.onebuilding.org]
<b>On Behalf Of </b>Dante Garcia via Equest-users<br>
<b>Sent:</b> Thursday, March 07, 2019 2:57 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] HVAC pump with 11 W/gpm<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hello,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I have a general question redargin how to design HVAC pump with 11 W/gpm per primary and secondary loops in evaporator.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Please advise how a design can achieve that target. Most design that I have seen exceeds that limits becasuse it does not consider head.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Regards,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Dante<br clear="all">
<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
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<p><b><span lang="ES-MX" style="font-size:14.0pt;font-family:"Arial",sans-serif;color:#943634">SUMAC</span></b><o:p></o:p></p>
<p><span lang="ES-MX" style="font-size:10.0pt;font-family:"Arial",sans-serif;color:black">Dante Garcia // LEED AP BD+C</span><o:p></o:p></p>
<p><span lang="ES-MX" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:black"><a href="mailto:dgarcia@sumacinc.com" target="_blank"><span style="color:#1155CC">dgarcia@sumacinc.com</span></a></span><o:p></o:p></p>
<p><span lang="ES-MX" style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#0F243E"><a href="http://www.sumacinc.com/" target="_blank"><span style="color:#1155CC">www.sumacinc.com<br>
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