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<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Dear All, <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>I have an office building with compartmental cooling units
on each floor and hot water reheat coils and baseboards for heating. The ventilation
air is supplied from a make-up air unit on the roof. This MAU has an enthalpy
wheel, but no heating or cooling coils. What is the correct way to model this
MAU in equest?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Currently I have modeled this MAU as it’s own
heating/ventilation system with a 1ft² dummy zone. The compartmental systems
have been set up to receive their outdoor air from this MAU system. However, equest
has the MAU pulling the exhaust air from this unconditioned dummy zone. This
results in the air being exhausted at a temperature slightly higher/lower than
the outdoor air leaving the enthalpy wheel, rather than at room
temperature. This greatly underestimates the heating/cooling savings for
this wheel. Therefore, would it be correct to break up this system and model it
under the “Heat Recovery” section for the compartmental systems,
with self-contained fans, rather than modeling it as a separate dedicated
outdoor air system? Or how can I force my MAU system to exhaust from the
conditioned zones?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 color=black face=Verdana><span lang=EN-GB
style='font-size:7.5pt;font-family:Verdana;color:black'>__________________________________________</span></font><font
size=1 color=green face=Verdana><span lang=EN-GB style='font-size:7.5pt;
font-family:Verdana;color:green'> </span></font><font size=1 color=black
face=Verdana><span lang=EN-GB style='font-size:7.5pt;font-family:Verdana;
color:black'><br>
</span></font><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Marlene Waters, B.A.Sc., P.Eng.<br>
Energy Project Manager</span></font><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><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>Enermodal Engineering Ltd.</span></font><o:p></o:p></p>
<p class=MsoNormal><st1:address w:st="on"><st1:Street w:st="on"><font size=2
face=Verdana><span style='font-size:10.0pt;font-family:Verdana'>650 Riverbend
Dr.</span></font></st1:Street><font size=2 face=Verdana><span
style='font-size:10.0pt;font-family:Verdana'>, <st1:City w:st="on">Kitchener</st1:City>
<st1:State w:st="on">ON</st1:State> <st1:PostalCode w:st="on">N2K 3S2</st1:PostalCode></span></font></st1:address><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'> <br>
</span></font><a href="blocked::http://www.enermodal.com/"
title="blocked::http://www.enermodal.com/
http://www.enermodal.com/
blocked::http://www.enermodal.com/"><font
size=2 color=black face=Verdana
title="blocked::http://www.enermodal.com/
http://www.enermodal.com/
blocked::http://www.enermodal.com/"><span
style='font-size:10.0pt;font-family:Verdana;color:black'>www.enermodal.com</span></font></a><font
size=2 face=Verdana><span style='font-size:10.0pt;font-family:Verdana'> <br>
p. 480-794-1891</span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>f. 519-743-8778 </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=2 face=Verdana><span style='font-size:10.0pt;
font-family:Verdana'>e. mwaters@enermodal.com</span></font><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>
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