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<DIV><FONT face=Arial size=2>Not sure what your ECONO-LOW-LIMIT is defaulting
to, but this could lock out the economiser thus creating system cooling loads in
winter.</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=DBirleanu@ers-inc.com href="mailto:DBirleanu@ers-inc.com">Daniel
Birleanu</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=BLDG-SIM@GARD.COM
href="mailto:BLDG-SIM@GARD.COM">BLDG-SIM@GARD.COM</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, August 30, 2006 5:52
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [BLDG-SIM] Space Cooling
Question</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Hello,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">I’m modeling a multistory
office building located in <st1:State w:st="on"><st1:place w:st="on">New
York</st1:place></st1:State> using eQUEST. The building has a heated basement
(no cooling) and six conditioned floors (heating and cooling). Cooling is done
via air-cooled DX units and a packaged VAV with reheat distribution system.
Heating is done using boilers and a hot water loop feeding the reheat coils in
the VAV box and baseboards along the perimeter. The schedules are eQUEST
defaults. I am not sure what I am doing wrong, but I am getting a significant
cooling load in winter. I am using OA temperature controlled economizer and
compressor lock-out.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">One other strange thing
that happens with this model is that both fan energy and demand go up in the
winter. One should think that in the heating mode the airflow is set to
minimum and the temperature is varied to meet the load. Therefore the fan
energy and demand should be lower in the winter. However, the numbers I am
seeing show that the demand for the fans is about 50% higher in the winter and
the fans energy use in January is almost 4 times higher than the one in
August. I have played with the night controls for the fans, but that does not
help. If I select the “Stay Off” control instead of “Cycle On Any” I am
getting rid of the cooling in the winter, but I am getting weird heating
numbers in the summer. In June and August I get some gas use (???) for space
heating, but none in July. I do not know what I am missing, but this does not
seem right.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Did anyone encounter these
or similar issues? Any input will be highly appreciated. Please let me know if
you need more details.<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Thank
you,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Courier New" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Courier New'">Dan</SPAN></FONT><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"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<DIV>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">_____________________________________</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Dan
Birleanu</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Project
Manager</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Energy <EM><I><FONT
face="Galliard BT"><SPAN
style="FONT-FAMILY: 'Galliard BT'">&</SPAN></FONT></I></EM> Resource
Solution, Inc. (ERS)</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><st1:Street w:st="on"><st1:address w:st="on"><FONT
face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">13 Railroad Square, Suite
504</SPAN></FONT></st1:address></st1:Street><o:p></o:p></P>
<P class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><FONT
face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Haverhill</SPAN></FONT></st1:City><FONT
face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">, <st1:State
w:st="on">MA</st1:State> <st1:PostalCode
w:st="on">01832</st1:PostalCode></SPAN></FONT></st1:place><o:p></o:p></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Tel: 978-521-2550
x265</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Fax:
978-521-4588</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Email: </SPAN></FONT><A
href="mailto:dbirleanu@ers-inc.com"><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">dbirleanu@ers-inc.com</SPAN></FONT></A><o:p></o:p></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">Web: </SPAN></FONT><A
href="http://www.ers-inc.com"><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">www.ers-inc.com</SPAN></FONT></A><o:p></o:p></P>
<P class=MsoNormal><FONT face="Galliard BT" size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Galliard BT'">_____________________________________</SPAN></FONT><o:p></o:p></P></DIV></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P></DIV><PRE>
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