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<p class="MsoNormal">I cannot seem to get any heat out of my GSHP "well field". Does anyone have a suggestion?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The actual system on paper is a vertical well field with water to water heat pumps that feed AHU coils, perimeter fin, and reheat coils.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I've set up the Water to Water GSHP Hybrid system, following the archive posting of steps:<o:p></o:p></p>
<p class="MsoNormal">1. Create a 2 pipe loop with snap temp. <o:p></o:p></p>
<p class="MsoNormal">2. Create a 'chiller' of the type ' heat pump' <o:p></o:p></p>
<p class="MsoNormal">2. Create an independent circulation loop of the type 'lake/well'
<o:p></o:p></p>
<p class="MsoNormal">3. Create a ground loop heat exchanger of the type 'lake/well'
<o:p></o:p></p>
<p class="MsoNormal">4. Select the GLHX loop for the chiller CW loop <o:p></o:p></p>
<p class="MsoNormal">5. Assign a custom temperature schedule for the lake/well ground loop based on a duplicate GSHP model with vertical well field and water to air heat pumps and an hourly ground outlet temperature report.<o:p></o:p></p>
<p class="MsoNormal">6. Adjust the default head/pump properties for the ground loop (i.e. for a closed ground loop no static head)"<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">However, the loop does not seem to be heating (so many unmet hours). (V3.65)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">How does eQuest convert the ground loop delta T to heat? Is it supposed to be using the heat pump chiller? I have an electric boiler attached to the loop but that just consumes electricity and when I "turn it off" by putting in .0001 for
capacity, there are thousands of unmet hours. Am I missing a step? <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The normal GSHP loop temps are 110F for cooling and 30F for heating but for the 2 pipe work around, the 2 pipe loop defaults to 40F for chw and 120 F for hw and the GSHP loop to 60F chw 45F hw - is this correct? <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I tried to run the same scenario in the 3.65 build 7175 and bootleg 3.70 versions, but came up with the same result.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I also screwed around with the load management and equipment controls but this did not really seem to have any effect. <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Please help!<o:p></o:p></p>
<p class="MsoNormal">Thanks.<o:p></o:p></p>
<p class="MsoNormal">~Mel<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:11.5pt;font-family:"Arial",sans-serif">Melanie G. Stachowiak, P.E., LEED AP BD+C, CMVP
</span></b><span style="font-size:9.0pt;font-family:"Arial",sans-serif"><br>
</span><i><span style="font-size:10.0pt;font-family:"Arial",sans-serif">Senior Engineer / Sustainability/Commissioning Services Group
</span></i><span style="font-size:9.0pt;font-family:"Arial",sans-serif"><br>
<br>
<b>M/E Engineering, P.C.</b> <br>
Suite 320, 60 Lakefront Boulevard<br>
Buffalo, NY 14202<br>
716.845.5092 x1207 | C: 716.830.7038 <br>
<a href="mailto:mgstachowiak@meengineering.com"><span style="color:#008996">mgstachowiak@meengineering.com
</span></a><br>
<a href="http://www.meengineering.com/"><span style="color:#008996">www.meengineering.com
</span></a><br>
<br>
</span><img border="0" width="197" height="29" id="Picture_x0020_5" src="cid:image001.jpg@01D531BC.F6CB29E0" alt="ME_logo_2color_horz"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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