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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am trying to model a system that has hot water boilers and
heat pumps on the same loop. The hot water loop has an OA reset from 110 F to
180 F. When the temperature drops below 130 F, the heat pumps are supposed to
kick in to provide heat to the loop. I have the heat pumps set up as
loop-to-loop heat pump chillers. The hot water temperature has an OA reset
schedule and I have load management based on OA set up. However, this is
not working. I am getting an error saying that that the design temp of the
chiller is to high for a loop-to-loop heat pump (max 130F). <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Any suggestions on how to overcome this problem or how to
best model this system? <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'> <o:p></o:p></span></font></p>
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<p class=MsoNormal><strong><b><font size=2 color="#4d4d4d" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#4D4D4D'>Oleksandra Onisko</span></font></b></strong><font
size=1 color="#4d4d4d" face=Arial><span style='font-size:8.0pt;font-family:
Arial;color:#4D4D4D'> LEED AP </span></font><o:p></o:p></p>
<p class=MsoNormal><i><font size=1 color="#4d4d4d" face=Arial><span
style='font-size:9.0pt;font-family:Arial;color:#4D4D4D;font-style:italic'>EIT</span></font></i><font
size=1 color="#4d4d4d" face=Arial><span style='font-size:9.0pt;font-family:
Arial;color:#4D4D4D'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><a href="http://www.mcw.com/"
title="http://www.mcw.com/
Click here to visit www.mcw.com"><em><b><i><font
size=2 color=green face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:green;font-weight:bold;text-decoration:none'><! -- Company colours for company names below. Substitute correct colour code in line below MCW Consultants Ltd. #008000 MCW Custom Energy Solutions Ltd. #FFBA00 MCW AGE Power Consultants #921CA2 MCW Light Heat Cool #0B3D90 MCW Group of Companies #FE360E --><span
title="http://www.mcw.com/">MCW Consultants Ltd. </span></span></font></i></b></em></a><o:p></o:p></span></font></p>
<p class=MsoNormal><em><i><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><ns0:address w:insAuthor="Oleksandra_O"
w:insDate="2010-04-29T16:34:00Z" w:endInsAuthor="Oleksandra_O"
w:endInsDate="2010-04-29T16:34:00Z"><ns0:Street w:insAuthor="Oleksandra_O"
w:insDate="2010-04-29T16:34:00Z" w:endInsAuthor="Oleksandra_O"
w:endInsDate="2010-04-29T16:34:00Z"><st1:address w:st="on"><st1:Street w:st="on"><font
color="#4d4d4d"><span style='color:#4D4D4D'>600-156 Front Street</span></font></st1:Street></ns0:Street></st1:address><font
color="#4d4d4d"><span style='color:#4D4D4D'> </span></font><ns0:City
w:insAuthor="Oleksandra_O" w:insDate="2010-04-29T16:34:00Z"
w:endInsAuthor="Oleksandra_O" w:endInsDate="2010-04-29T16:34:00Z"><st1:City
w:st="on"><font color="#4d4d4d"><span style='color:#4D4D4D'>West </span></font><font
color="#4d4d4d"><span style='color:#4D4D4D'><br>
Toronto</span></font></st1:City></ns0:City><font color="#4d4d4d"><span
style='color:#4D4D4D'>, </span></font><ns0:State w:insAuthor="Oleksandra_O"
w:insDate="2010-04-29T16:34:00Z" w:endInsAuthor="Oleksandra_O"
w:endInsDate="2010-04-29T16:34:00Z"><st1:State w:st="on"><font color="#4d4d4d"><span
style='color:#4D4D4D'>ON</span></font></st1:State></ns0:State><font
color="#4d4d4d"><span style='color:#4D4D4D'> </span></font><ns0:PostalCode
w:insAuthor="Oleksandra_O" w:insDate="2010-04-29T16:34:00Z"
w:endInsAuthor="Oleksandra_O" w:endInsDate="2010-04-29T16:34:00Z"><st1:PostalCode
w:st="on"><font color="#4d4d4d"><span style='color:#4D4D4D'>M5J 2L6</span></font></st1:PostalCode></ns0:PostalCode></ns0:address><font
color="#4d4d4d"><span style='color:#4D4D4D'> </span></font></span></font></i></em><i><font
size=2 color="#4d4d4d" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#4D4D4D;font-style:italic'><br>
<em><i><font face=Arial><span style='font-family:Arial'>Phone 416-598-2920 </span></font></i></em><br>
<em><i><font face=Arial><span style='font-family:Arial'>Fax 416-598-5394 </span></font></i></em></span></font></i><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> <o:p></o:p></span></font></p>
<p class=MsoNormal><i><font size=1 color="#4d4d4d" face=Arial><span
style='font-size:8.0pt;font-family:Arial;color:#4D4D4D;font-style:italic'>This
e-mail may be privileged and confidential. Any unauthorized use is strictly
prohibited. If you received this e-mail in error, please contact the sender
directly. </span></font></i><o:p></o:p></p>
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12.0pt'><o:p> </o:p></span></font></p>
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