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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I think you need to create 2 circulation
loops: one loop is a lake/well circulation loop and the other is a chilled
water loop. Create and attach a ground loop heat exchanger lake/well type to
the lake/well loop. Create and attach a chiller heat pump type to the lake/well
loop and the chilled water loop. The chiller heat pump type device will have energy
coefficients of 1. That should do it.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>I have used this system successfully with
a 2 pipe circulation loop and I don’t see why it wouldn’t work with
a chilled water loop.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><strong><b><font
size=3 color=black face=Arial><span style='font-size:12.0pt;font-family:Arial;
color:black'>Kathryn Kerns</span></font></b></strong><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><i><font
size=2 color=navy face=Arial><span style='font-size:11.0pt;font-family:Arial;
color:navy;font-weight:bold;font-style:normal'>Systems Specialist</span></font></i></b></em><font
color=navy><span style='color:navy'><o:p></o:p></span></font></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><em><b><i><font
size=3 color=teal face="Times New Roman"><span style='font-size:12.0pt;
font-variant:small-caps;color:teal;font-weight:bold;font-style:normal'>BCE</span></font></i></b></em><strong><b><font
size=2 color=teal face="Times New Roman"><span style='font-size:10.0pt;
font-variant:small-caps;color:teal'> </span></font><font color=teal><span
style='font-variant:small-caps;color:teal'>Engineers, Inc.<o:p></o:p></span></font></b></strong></p>
<p class=section1 style='margin:0in;margin-bottom:.0001pt'><strong><b><font
size=1 color=black face="Times New Roman"><span style='font-size:9.0pt;
color:black'>| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></font></b></strong><font
size=1 color=black><span style='font-size:7.0pt;color:black'> <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=4 color=black face=Arial><span style='font-size:
13.5pt;font-family:Arial;color:black'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Travis Miller<br>
<b><span style='font-weight:bold'>Sent:</span></b> Monday, October 17, 2011
2:45 PM<br>
<b><span style='font-weight:bold'>To:</span></b>
equest-users@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Equest-users] Ground
Water/chilled water loop error(s)</span></font><font size=3
face="Times New Roman"><span style='font-size:12.0pt;font-family:"Times New Roman"'><o:p></o:p></span></font></p>
</div>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Hello
all:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>I
have a system that is using well water direct to the cooling coils (no heat
exchanger to protect the cooling coils) at multiple air handlers in the
building. I set it up with the condenser water loop tied to a ground water heat
exchanger. This condenser loop then is tied to another heat exchanger on the
chilled water loop to the coils. This approach has given me an error on
the condenser water loop that it has no design flow. I have been playing with
the primary/secondary loop designations, even putting some made up flow values
into the loops/pumps etc. but have had no luck. Any ideas?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>I
would like to eliminate heat exchangers all together and just model the 50°
well water directly into the chilled water loop – any advice on how to do
this? I already changed the effectiveness of the heat exchanger to 1.0. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'>Thanks
<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><b><i><font size=2 face=Arial><span style='font-size:11.0pt;
font-family:Arial;font-weight:bold;font-style:italic'>Travis Miller</span></font></i></b><b><i><font
size=2 face="Lucida Sans"><span style='font-size:10.0pt;font-family:"Lucida Sans";
font-weight:bold;font-style:italic'>, PE</span></font></i></b><b><i><font
face="Lucida Sans"><span style='font-family:"Lucida Sans";font-weight:bold;
font-style:italic'><o:p></o:p></span></font></i></b></p>
<p class=MsoNormal><font size=2 color="#9a600a" face=Impact><span
style='font-size:11.0pt;font-family:Impact;color:#9A600A'>DC Engineering</span></font><font
size=3 color="#9a600a" face=Impact><span style='font-size:12.0pt;font-family:
Impact;color:#9A600A'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face="Lucida Sans"><span style='font-size:8.0pt;
font-family:"Lucida Sans"'>123 <st1:Street w:st="on"><st1:address w:st="on">W.
Spruce St</st1:address></st1:Street>.</span></font><font
face="Times New Roman"><span style='font-family:"Times New Roman"'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=1
face="Lucida Sans"><span style='font-size:8.0pt;font-family:"Lucida Sans"'>Missoula</span></font></st1:City><font
size=1 face="Lucida Sans"><span style='font-size:8.0pt;font-family:"Lucida Sans"'>,
<st1:State w:st="on">MT</st1:State> <st1:PostalCode w:st="on">59802</st1:PostalCode></span></font></st1:place><o:p></o:p></p>
<p class=MsoNormal><font size=1 face="Lucida Sans"><span style='font-size:8.0pt;
font-family:"Lucida Sans"'>P: (406)829-8828x209</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=1 face="Lucida Sans"><span style='font-size:8.0pt;
font-family:"Lucida Sans"'>F: (406)829-8829</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Calibri><span style='font-size:11.0pt'><o:p> </o:p></span></font></p>
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