<div>I have found problems with the supplemental heat for heat pumps for all supplemental heat types excepting electricity. In the past I have post-processed hourly results in order to get an approximation of gas supplemental heat use.<br>
</div><div><br></div><div>--</div><div>Karen</div><br><div class="gmail_quote">On Mon, Feb 21, 2011 at 2:21 PM, Syed, Fareed <span dir="ltr"><<a href="mailto:Fareed.Syed@halcrowyolles.com">Fareed.Syed@halcrowyolles.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
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<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Hello All,</span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">I am trying to model heat pump with supplemental heat
supported by a gas fired boiler.</span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">I connected hot water loop to the Supplemental Heat under
Systems</span></font><font size="2" face="Wingdings"><span style="font-size:10.0pt;font-family:Wingdings">à</span></font><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Heating</span></font><font size="2" face="Wingdings"><span style="font-size:10.0pt;font-family:Wingdings">à</span></font><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Supp Heat/Defrost
but the boiler is not turning on. The start point for the HW loop to support
the HP was modeled at 45F.</span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Can anyone please advice on how to model this heat pump with
hot water coil?</span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>
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<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial">Thanks,</span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size:10.0pt;font-family:Arial"> </span></font></p>
<p class="MsoNormal"><b><font size="2" color="black" face="Arial"><span lang="EN-US" style="font-size:10.0pt;font-family:Arial;color:black;font-weight:bold">Fareed
Syed EIT LEED<sup>®</sup> AP</span></font></b></p>
<p class="MsoNormal"><font size="1" color="gray" face="Arial"><span lang="EN-US" style="font-size:9.0pt;font-family:Arial;color:gray">Analytics Specialist</span></font></p>
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Yolles</span></font></b></p>
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