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<DIV><SPAN class=178313318-22082007><FONT face=Arial color=#0000ff size=2>I
would like to discuss question number 1 as well. Appendix G specifies that
Direct Expansion be used as the cooling type for System 6. However, the
PIU system in eQuest does not allow you to use DX coils. I have seen
several archived posts on this same question that say to model a chiller
equivalent to the DX coils, but nothing further. I have redefined the
chiller performance curves accordingly with no success. Has anyone set up
this system succ</FONT></SPAN><SPAN class=178313318-22082007><FONT face=Arial
color=#0000ff size=2>esfully in eQuest? </FONT></SPAN></DIV>
<DIV><SPAN class=178313318-22082007><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=178313318-22082007><FONT face=Arial color=#0000ff size=2>In
response to Questions 2 and 3, the U-value and Shading Coefficient of the glass
has significant impact on the energy savings with the HVAC system. In
addition, the visible light transmittance of the glass directly impacts the
Daylighting controls within the rooms affecting electric usage. The
selection of glass should be investigated when determining the window-wall
ratio and the resulting savings.</FONT></SPAN></DIV>
<DIV><SPAN class=178313318-22082007><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=178313318-22082007>
<DIV align=left><FONT face=Arial size=2>
<DIV align=left><EM><FONT face="Bookman Old Style" size=3>Robert
Garcia</FONT></EM></DIV>
<DIV align=left><FONT size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Century Gothic'">AKF Engineers,
LLP<BR></SPAN><?xml:namespace prefix = st1 ns =
"urn:schemas-microsoft-com:office:smarttags" /><st1:Street
w:st="on"><st1:address w:st="on"><FONT size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Century Gothic'">1500 Walnut Street, Suite
1400<BR></SPAN></FONT></st1:address></st1:Street><st1:place w:st="on"><st1:City
w:st="on"><FONT size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Century Gothic'">Philadelphia</SPAN></FONT></st1:City><FONT
size=1><SPAN style="FONT-SIZE: 9pt; FONT-FAMILY: 'Century Gothic'">, <st1:State
w:st="on">PA</st1:State> <st1:PostalCode
w:st="on">19102</st1:PostalCode></SPAN></FONT></st1:place><FONT size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Century Gothic'"> <BR></SPAN></FONT><FONT
size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Century Gothic'">Phone: (215)
282-2182</SPAN></FONT></FONT></DIV>
<DIV align=left><FONT size=2><FONT size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Century Gothic'"></SPAN></FONT><FONT
size=1><SPAN
style="FONT-SIZE: 9pt; FONT-FAMILY: 'Century Gothic'">Fax:
(215) 735-6706<BR></SPAN></FONT><FONT size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Century Gothic'"><A
href="http://www.akf-engineers.com/"><FONT
color=#000000>www.akf</FONT></SPAN></FONT><FONT size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: 'Century Gothic'"><FONT
color=#000000>-engineers.com</FONT></A></SPAN></FONT></FONT></DIV></FONT></DIV></SPAN></DIV>
<DIV><SPAN class=178313318-22082007><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV></DIV>
<DIV><FONT face=Tahoma size=2>-----Original Message-----<BR><B>From:</B>
BLDG-SIM@gard.com [mailto:BLDG-SIM@gard.com] <B>On Behalf Of </B>Virdi
Permana<BR><B>Sent:</B> Wednesday, August 22, 2007 1:59 PM<BR><B>To:</B>
BLDG-SIM@gard.com<BR><B>Subject:</B> [BLDG-SIM] System 6 and High Efficiency
Window<BR><BR></DIV></FONT>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hello
All,<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Quick question on System 6:
Package VAV w/PFP boxes.<o:p></o:p></SPAN></FONT></P>
<OL style="MARGIN-TOP: 0in" type=1>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">How do you use
system 6 in eQUEST? Do you have to use parallel PIU at the
zone?<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">At what percentage
of window to wall ratio that high efficiency can star contribute significant
saving?<o:p></o:p></SPAN></FONT>
<LI class=MsoNormal style="mso-list: l0 level1 lfo1"><FONT face=Arial
size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">At what number is
considered significant saving?<o:p></o:p></SPAN></FONT> </LI></OL>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Any respond is greatly
appreciated.<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">Sincerely,<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">Virdiansyah "Virdi"
Permana</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><STRONG><B><FONT face=Arial color=green size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: green; FONT-FAMILY: Arial">EMSI</SPAN></FONT></B></STRONG><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Energy
Analyst</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">(202) 291 3102
T</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">(202) 291 3107
F</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></DIV><PRE>
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