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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I have two questions that have come up recently…<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<ol style='margin-top:0in' start=1 type=1>
<li class=MsoNormal style='mso-list:l0 level1 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>If the a proposed building pursuing
LEED is going to use a Packaged VAV system with a gas furnace in the unit
and electric reheat in the boxes, would the baseline building (according
to ASHRAE Appendix G) fall under the Fossil/Electric Hybrid category or
the Electric category since that is the predominant heating source?<o:p></o:p></span></font></li>
<li class=MsoNormal style='mso-list:l0 level1 lfo1'><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Secondly, what is the best way
to model this type of system in eQUEST? I have experimented with first
defining a packaged VAV unit in the wizard with hot water coils as the
heating source. Then in the detailed edit mode, I changed the system
“Heat Source” to furnace and “Zone Heat Source” to
electric and deleted the boiler and hot water loop. When I simulated
this model, no natural gas usage showed up in the BEPS report under Space
Heating, however, there was a tiny amount (~2% of total heating energy)
that appeared in the Pumps & Aux category. Can anyone explain
what’s happening and/or suggest the best way to model this kind of
system? As a side note, from projects we have monitored here in
Oregon, we would expect to see about 30% of the total heating energy use
go to natural gas for this type of system, primarily from morning warm-up.<o:p></o:p></span></font></li>
</ol>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks for your input.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Regards,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p><st1:PersonName w:st="on"><b><font size=2 color="#816d5b" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#816D5B;font-weight:bold'>Andrew
Craig</span></font></b></st1:PersonName><b><font size=2 color="#816d5b"
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:#816D5B;
font-weight:bold'>, EIT, LEED® AP</span></font></b> <font size=2
color="#1e1f48" face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:#1E1F48'>| </span></font><font size=2 color="#816d5b" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#816D5B'>Mechanical Designer</span></font><o:p></o:p></p>
<p><font size=3 color="#1e1f48" face="Arial Black"><span style='font-size:12.0pt;
font-family:"Arial Black";color:#1E1F48'>INTERFACE </span></font><font
color="#1e1f48" face=Arial><span style='font-family:Arial;color:#1E1F48'>ENGINEERING
</span></font><br>
<st1:Street w:st="on"><st1:address tabIndex="0"
style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"
w:st="on"><font size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#816D5B'>708 SW Third Avenue</span></font></st1:address></st1:Street><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'> </span></font><font size=2 color="#1e1f48" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#1E1F48'>| </span></font><st1:address
tabIndex="0"
style="BACKGROUND-POSITION: left bottom; BACKGROUND-IMAGE: url(res://ietag.dll/#34/#1001); BACKGROUND-REPEAT: repeat-x"
w:st="on"><st1:Street w:st="on"><font size=2 color="#816d5b" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#816D5B'>Suite</span></font></st1:Street><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'> 400</span></font></st1:address><font size=2
color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:#816D5B'> </span></font><font size=2 color="#1e1f48" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#1E1F48'>| </span></font><st1:place
w:st="on"><st1:City w:st="on"><font size=2 color="#816d5b" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#816D5B'>Portland</span></font></st1:City><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'>, <st1:State w:st="on">OR</st1:State> <st1:PostalCode
w:st="on">97204</st1:PostalCode></span></font></st1:place><font size=2
color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:#816D5B'> </span></font><o:p></o:p></p>
<p><b><font size=2 color="#1e1f48" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#1E1F48;font-weight:bold'>direct: </span></font></b><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'>503.382.2696</span></font><br>
<b><font size=2 color="#1e1f48" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#1E1F48;font-weight:bold'>office: </span></font></b><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'>503.382.2266</span></font><br>
<b><font size=2 color="#1e1f48" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#1E1F48;font-weight:bold'>fax: </span></font></b><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'>503.382.2262</span></font><br>
<strong><b><font size=2 color="#1e1f48" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#1E1F48'>email: </span></font></b></strong><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'>Andrew_C@ieice.com</span></font><br>
<b><font size=2 color="#1e1f48" face=Arial><span style='font-size:10.0pt;
font-family:Arial;color:#1E1F48;font-weight:bold'>web: </span></font></b><font
size=2 color="#816d5b" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#816D5B'>www.ieice.com</span></font> <o:p></o:p></p>
<p><font size=1 color="#1e1f48" face=Arial><span style='font-size:8.0pt;
font-family:Arial;color:#1E1F48'>Consultants of Choice to the Built Environment
for over 35 years</span></font><br>
<st1:City w:st="on"><font size=1 color="#816d5b" face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:#816D5B'>Kirkland</span></font></st1:City><font
size=1 color="#816d5b" face=Arial><span style='font-size:7.5pt;font-family:
Arial;color:#816D5B'>, <st1:State w:st="on">WA</st1:State> </span></font><font
size=1 color="#1e1f48" face=Arial><span style='font-size:7.5pt;font-family:
Arial;color:#1E1F48'>| </span></font><st1:City w:st="on"><font size=1
color="#816d5b" face=Arial><span style='font-size:7.5pt;font-family:Arial;
color:#816D5B'>Portland</span></font></st1:City><font size=1 color="#816d5b"
face=Arial><span style='font-size:7.5pt;font-family:Arial;color:#816D5B'>, <st1:State
w:st="on">OR</st1:State> </span></font><font size=1 color="#1e1f48" face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:#1E1F48'>| </span></font><st1:City
w:st="on"><font size=1 color="#816d5b" face=Arial><span style='font-size:7.5pt;
font-family:Arial;color:#816D5B'>Sacramento</span></font></st1:City><font
size=1 color="#816d5b" face=Arial><span style='font-size:7.5pt;font-family:
Arial;color:#816D5B'>, <st1:State w:st="on">CA</st1:State> </span></font><font
size=1 color="#1e1f48" face=Arial><span style='font-size:7.5pt;font-family:
Arial;color:#1E1F48'>| </span></font><st1:City w:st="on"><font size=1
color="#816d5b" face=Arial><span style='font-size:7.5pt;font-family:Arial;
color:#816D5B'>Salem</span></font></st1:City><font size=1 color="#816d5b"
face=Arial><span style='font-size:7.5pt;font-family:Arial;color:#816D5B'>, <st1:State
w:st="on">OR</st1:State> </span></font><font size=1 color="#1e1f48" face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:#1E1F48'>| </span></font><st1:place
w:st="on"><st1:City w:st="on"><font size=1 color="#816d5b" face=Arial><span
style='font-size:7.5pt;font-family:Arial;color:#816D5B'>SanFrancisco</span></font></st1:City><font
size=1 color="#816d5b" face=Arial><span style='font-size:7.5pt;font-family:
Arial;color:#816D5B'>, <st1:State w:st="on">CA</st1:State></span></font></st1:place><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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