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<DIV dir=ltr align=left><SPAN class=172292612-28042010><FONT face=Arial
color=#0000ff size=2>I'd like to propose an answer my own question to the
group and ask if this makes sense... I'm getting additional baseboard heat in
some of the PVVT zones. </FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=172292612-28042010><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=172292612-28042010><FONT face=Arial
color=#0000ff size=2>Take the several zones a unit serves. One of
them is the control zone, same for PSZ and PVVT. For a PSZ when
the control zone is satisfied the other zones are also satisfied, because
there is no additional baseboard heat, the constant airflow must be keeping the
other zones satisfied. For a PVVT the control zone is satisfied, and
airflow reduces and the other zones are not satisfied requiring additional
baseboard heat.</FONT></SPAN></DIV>
<DIV><FONT face=Arial color=#0000ff size=2></FONT> </DIV>
<DIV align=left><FONT size=2></FONT> </DIV>
<DIV align=left><FONT face=Garamond color=#757575 size=3>Nick Couture, LEED
AP</FONT></DIV>
<DIV align=left><FONT face=Garamond
color=#757575>Mechanical Engineer</FONT>
<P><FONT size=2><IMG alt="" hspace=0 src="cid:172292612@28042010-03E2"
align=baseline border=0></FONT></P></DIV>
<DIV align=left><STRONG><FONT face=Garamond></FONT></STRONG></DIV>
<DIV align=left><FONT size=2></FONT></DIV>
<DIV align=left>
<DIV align=left>
<P><FONT face=Garamond color=gray size=2>3555 Veteran's Memorial Highway, Suite
M</FONT><FONT face=Garamond color=gray><BR></FONT><FONT face=Garamond color=gray
size=2>Ronkonkoma, NY 11779</FONT><FONT face=Garamond
color=gray><BR></FONT><FONT face=Garamond color=gray size=2>Tel:
631.981.3990 ext. 230</FONT><FONT face=Garamond color=gray><BR></FONT><FONT
face=Garamond color=gray size=2>Fax: 631.981.3971</FONT><FONT face=Garamond
color=gray><BR></FONT><FONT face=Garamond color=gray
size=2>ncouture@emtec-engineers.com</FONT><FONT face=Garamond
color=gray><BR></FONT></P>
<P><A title="Emtec Consulting Engineers"
href="http://www.emtec-engineers.com/"><FONT
title=http://www.emtec-engineers.com/ color=green>www.emtec-engineers.com
</FONT></A></P>
<DIV align=left><FONT face=Garamond size=1>This message is intended only for the
personal and confidential use of the designated recipient(s) named above. This
is not in anyway an official statement of Emtec Consultants or solicitation to
buy our services. Emtec Consultants does not guarantee this Email transmission
to be secure or error-free. Any reproduction or changes to our drawings and
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<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <B>On Behalf Of </B>Nicholas
Couture, LEED AP<BR><B>Sent:</B> Tuesday, April 27, 2010 4:39 PM<BR><B>To:</B>
equest-users@lists.onebuilding.org<BR><B>Subject:</B> [Equest-users] PVVT vs.
PSZ<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><SPAN class=074081120-27042010><FONT face=Arial
size=2>Hello,</FONT></SPAN></DIV>
<DIV><SPAN class=074081120-27042010><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=074081120-27042010><FONT face=Arial size=2>I'm comparing a
PVVT against PSZ systems in the DD wizard mode. On the heating side I'm
keeping everything the same, that is furnaces at 80% AFUE
and baseboard, all heating settings including the boilers are set up the
same. I'm getting more fuel use for the PVVT system than the PSZ
system. Can anyone explain why that is?</FONT></SPAN></DIV>
<DIV><SPAN class=074081120-27042010><FONT face=Arial
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=074081120-27042010><FONT face=Arial
size=2>thanks,</FONT></SPAN></DIV>
<DIV><FONT size=2></FONT> </DIV>
<DIV align=left><FONT face=Garamond color=#757575 size=3>Nick Couture, LEED
AP</FONT></DIV>
<DIV align=left><FONT face=Garamond
color=#757575>Mechanical Engineer</FONT>
<P><FONT size=2><IMG alt="" hspace=0 src="cid:172292612@28042010-03E9"
align=baseline border=0></FONT></P></DIV>
<DIV align=left><STRONG><FONT face=Garamond></FONT></STRONG></DIV>
<DIV align=left><FONT size=2></FONT></DIV>
<DIV align=left>
<DIV align=left>
<P><FONT face=Garamond color=gray size=2>3555 Veteran's Memorial Highway, Suite
M</FONT><FONT face=Garamond color=gray><BR></FONT><FONT face=Garamond color=gray
size=2>Ronkonkoma, NY 11779</FONT><FONT face=Garamond
color=gray><BR></FONT><FONT face=Garamond color=gray size=2>Tel:
631.981.3990 ext. 230</FONT><FONT face=Garamond color=gray><BR></FONT><FONT
face=Garamond color=gray size=2>Fax: 631.981.3971</FONT><FONT face=Garamond
color=gray><BR></FONT><FONT face=Garamond color=gray
size=2>ncouture@emtec-engineers.com</FONT><FONT face=Garamond
color=gray><BR></FONT></P>
<P><A title="Emtec Consulting Engineers"
href="http://www.emtec-engineers.com/"><FONT
title=http://www.emtec-engineers.com/ color=green>www.emtec-engineers.com
</FONT></A></P>
<DIV align=left><FONT face=Garamond size=1>This message is intended only for the
personal and confidential use of the designated recipient(s) named above. This
is not in anyway an official statement of Emtec Consultants or solicitation to
buy our services. Emtec Consultants does not guarantee this Email transmission
to be secure or error-free. Any reproduction or changes to our drawings and
files without the consent of Emtec Consultants is strictly
prohibited.</FONT></DIV></DIV></DIV>
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