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<div class=Section1>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Michael,<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'>Regarding modeling “extra”
systems for conditioned spaces, the key is “<b><i><span style='font-weight:
bold;font-style:italic'>conditioned</span></i></b>” spaces. See the
definition of “conditioned space” in the standard. If a space has
no heating or cooling, it is not a conditioned space. The User’s Manual for
ASHRAE 90.1-2004 clarifies that “This requirement only applies to
conditioned spaces in the building. Semiheated spaces would only have a heating
system; unconditioned spaces would have neither heating nor cooling systems.”
(p. G-21) See the definition for “semiheated space” too. I believe
the intent here is to add a cooling system to spaces that only have a heating system
and add a heating system to spaces that only have a cooling system.<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'>If the model is for LEED, the LEED-NC v2.2
Reference Guide clarifies it. “For areas of the project without heating
or cooling systems (such as parking garages), there is no need to model heating
or cooling systems in either the Proposed or Baseline Designs.” (p. 181)<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 don’t know of any restrictions on
the thermostat settings, so you might be able to just make the thermostat
setting of the fictitious system pretty extreme so that the system rarely (or
never) comes on. This would satisfy the requirement to have a system, but keep
your energy consumption numbers more realistic.<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'>Sincerely,<br>
<br>
Keith Swartz, PE, LEED® AP<br>
Energy Engineer / Senior Project Manager<br>
</span></font><ns0:PlaceName w:insAuthor="Keith Swartz"
w:insDate="2008-07-17T14:33:00Z" w:endInsAuthor="Keith Swartz"
w:endInsDate="2008-07-17T14:33:00Z"><st1:PlaceName w:st="on"><font color=navy><span
style='color:navy'>Energy</span></font></st1:PlaceName></ns0:PlaceName><font
color=navy><span style='color:navy'> </span></font><ns0:PlaceType
w:insAuthor="Keith Swartz" w:insDate="2008-07-17T14:33:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2008-07-17T14:33:00Z"><st1:PlaceType
w:st="on"><font color=navy><span style='color:navy'>Center</span></font></st1:PlaceType></ns0:PlaceType><font
color=navy><span style='color:navy'> of </span></font><ns0:State
w:insAuthor="Keith Swartz" w:insDate="2008-07-17T14:33:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2008-07-17T14:33:00Z"><ns0:place
w:insAuthor="Keith Swartz" w:insDate="2008-07-17T14:33:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2008-07-17T14:33:00Z"><st1:place
w:st="on"><st1:State w:st="on"><font color=navy><span style='color:navy'>Wisconsin</span></font></st1:State></st1:place><br>
</ns0:place></ns0:State><ns0:Street w:insAuthor="Keith Swartz"
w:insDate="2008-07-17T14:33:00Z" w:endInsAuthor="Keith Swartz"
w:endInsDate="2008-07-17T14:33:00Z"><ns0:address w:insAuthor="Keith Swartz"
w:insDate="2008-07-17T14:33:00Z" w:endInsAuthor="Keith Swartz"
w:endInsDate="2008-07-17T14:33:00Z"><st1:Street w:st="on"><st1:address w:st="on"><font
color=navy><span style='color:navy'>455 Science Drive, </span></font></ns0:address></st1:address></st1:Street></ns0:Street><ns0:address
w:insAuthor="Keith Swartz" w:insDate="2008-07-17T14:33:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2008-07-17T14:33:00Z"><ns0:Street
w:insAuthor="Keith Swartz" w:insDate="2008-07-17T14:33:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2008-07-17T14:33:00Z"><font
color=navy><span style='color:navy'>Suite</span></font></ns0:Street><font
color=navy><span style='color:navy'> 200<br>
</span></font></ns0:address><ns0:place w:insAuthor="Keith Swartz"
w:insDate="2008-07-17T14:33:00Z" w:endInsAuthor="Keith Swartz"
w:endInsDate="2008-07-17T14:33:00Z"><ns0:City w:insAuthor="Keith Swartz"
w:insDate="2008-07-17T14:33:00Z" w:endInsAuthor="Keith Swartz"
w:endInsDate="2008-07-17T14:33:00Z"><font color=navy><span style='color:navy'>Madison</span></font></ns0:City><font
color=navy><span style='color:navy'>, </span></font><ns0:State
w:insAuthor="Keith Swartz" w:insDate="2008-07-17T14:33:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2008-07-17T14:33:00Z"><font
color=navy><span style='color:navy'>WI</span></font></ns0:State><font
color=navy><span style='color:navy'> </span></font><ns0:PostalCode
w:insAuthor="Keith Swartz" w:insDate="2008-07-17T14:33:00Z"
w:endInsAuthor="Keith Swartz" w:endInsDate="2008-07-17T14:33:00Z"><font
color=navy><span style='color:navy'>53711<br>
<br>
</span></font></ns0:PostalCode></ns0:place><font color=navy><span
style='color:navy'>Phone: 608-238-8276 ext. 123, Fax: 608-238-0523<br>
<a href="http://www.ecw.org"></a><a href="http://www.ecw.org">www.ecw.org</a>
The Energy Center of Wisconsin is a nonprofit organization that seeks solutions
to energy challenges.</span></font><o:p></o:p></p>
</div>
<div>
<div class=MsoNormal align=center style='margin:0in;margin-bottom:.0001pt;
text-align:center'><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>
<hr size=2 width="100%" align=center tabindex=-1>
</span></font></div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><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'> Michael
Bejrowski [mailto:MichaelB@auseea.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, July 16, 2008
2:40 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Bldg-sim@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [Bldg-sim] eQUEST - City
Chilled Water Loop and ASHRAE Appendix G</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>How do you model
a building that is attached to a city chilled water loop?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>and<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Have any of you
had experience with ASHRAE 90.1 Append. G, Table G3.1, 1c where it says
"All conditioned spaces in the proposed design shall be simulated as being
both heated and cooled even if no heating or cooling system is to be
installed,..."?<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>We modeled a
building that had heated vehicle maintenance bays, so by the ASHRAE standard it
would seem that we could not model it that way, but would have to model it as
being heated AND cooled.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Any ideas or
experience would be greatly appreciated.<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Thanks,<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Michael Bejrowski<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Mechanical EIT<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>Austin, TX<o:p></o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='margin:0in;margin-bottom:.0001pt'><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> <o:p></o:p></span></font></p>
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