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<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2>Bill:</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2>Remember a cardinal rule of eQuest/DOE-2 - ONE SYSTEM-TYPE
to ONE ZONE. I suggest you split your space into two zones and give each the
appropriate system. Put the majority of the load into the Radiant System
(since I will assume you want that more passive system to operate first),
then put an AIR-WALL between the zones and let the ducted system take the rest
of the load.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2>This thinking is before my first morning cup of coffee, so
perhaps it is backwards. But you probably know which system should be able to
handle what load.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2>Good luck.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=835201116-12092008>
<DIV align=left>
<DIV align=left><FONT color=#0000ff>John R. Aulbach, PE, CEM</FONT></DIV>
<DIV align=left><FONT face=Arial size=2><EM>Project Manager</EM></FONT></DIV>
<DIV align=left><FONT face=Arial size=2><FONT color=#0000ff>Nexant,
Inc</FONT>.</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>701 West Kimberly Ave., Suite
245</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>Placentia, CA 92870-6342
USA</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>Phone: 714-524-4402</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>Fax: 714-524-4407</FONT></DIV>
<DIV align=left><FONT face=Arial size=2>email: <A
title=mailto:jaulbach@nexant.com
href="mailto:jaulbach@nexant.com">jaulbach@nexant.com</A></FONT></DIV>
<DIV> </DIV></DIV></SPAN></DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Bishop,
Bill<BR><B>Sent:</B> Friday, September 12, 2008 8:03 AM<BR><B>To:</B>
equest-users@lists.onebuilding.org<BR><B>Subject:</B> [Equest-users]
Water-to-water and water-to-air heat pump off sameloop<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I would like to model a combination
of forced air heat pump heating & cooling with radiant slab heating. The
ducted system would use a water-to-air heat pump and the radiant slab would use
a water-to-water heat pump, both drawing off of a GLHP loop. Can I get there
from here?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I thought of using a radiant slab
system, and using the “Outdoor air from system” to get conditioned air from a
separate system. Is this an option? Does the OA-from-system system have to be a
100% OA system?<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Bill<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><B><FONT face="Franklin Gothic Medium" color=black
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium'">William
Bishop</SPAN></FONT></B><B><FONT face="Franklin Gothic Medium Cond" color=black
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'">,
EIT, LEED<SUP>®</SUP> AP</SPAN></FONT></B><B><FONT
face="Franklin Gothic Medium Cond" color=#003300 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #003300; FONT-FAMILY: 'Franklin Gothic Medium Cond'">
</SPAN></FONT></B><B><FONT face="Franklin Gothic Medium Cond" color=green
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: green; FONT-FAMILY: 'Franklin Gothic Medium Cond'">|</SPAN></FONT></B><B><FONT
face="Franklin Gothic Medium Cond" color=#003300 size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: #003300; FONT-FAMILY: 'Franklin Gothic Medium Cond'">
</SPAN></FONT></B><B><FONT face="Franklin Gothic Medium Cond" color=black
size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; COLOR: black; FONT-FAMILY: 'Franklin Gothic Medium Cond'">Pathfinder
Engineers LLP<o:p></o:p></SPAN></FONT></B></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">Mechanical
Engineer<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 3pt; COLOR: black; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><FONT face=Arial
color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">3300 Monroe Ave., Suite
306</SPAN></FONT></st1:Street><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial"> <BR><st1:City
w:st="on">Rochester</st1:City>, <st1:State w:st="on">NY</st1:State>
<st1:PostalCode
w:st="on">14618</st1:PostalCode></SPAN></FONT></st1:address><FONT face=Arial
color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial"><o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">TEL (585) 218-0730
Ext. 114<BR>FAX (585) 218-0737 <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">bbishop@pathfinderengineers.com<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 3pt; COLOR: black; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=black size=1><SPAN
style="FONT-SIZE: 9pt; COLOR: black; FONT-FAMILY: Arial">www.pathfinderengineers.com<o:p></o:p></SPAN></FONT></P>
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style="FONT-SIZE: 18pt; COLOR: green; FONT-FAMILY: Webdings">P</SPAN></FONT><FONT
color=green><SPAN style="COLOR: green"> </SPAN></FONT><FONT color=green
size=1><SPAN style="FONT-SIZE: 7.5pt; COLOR: green">Please consider the
environment before printing this email</SPAN></FONT><FONT color=green><SPAN
style="COLOR: green"><o:p></o:p></SPAN></FONT></P>
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