<div>Hi Nick,</div>
<div> </div>
<div>based on my brief skimming through the descriptions of the system types you are working with (see attached docs.) I concur with your explanation if it is the case that you have specified or 'turned on' baseboards in the specific zones that are not the control zone for the system. If you do not have the baseboards turned on in your model then your heat energy is coming from somewhere else. If you attach your .pd2 & .inp files we can look at your inputs and give you some specific feedback on your model file.</div>
<div> </div>
<div>Also, have you looked at your 'hours out of throttling range' for these adjacent zones? Look at your BEPS/BEPU reports and the SS-F or SS-R reports as well. Maybe they are significantly underheated, or maybe they are already satisfied for thier thermal conditioning requirements....its good to just confirm this.</div>
<div> </div>
<div>pasha<br><br></div>
<div class="gmail_quote">On Wed, Apr 28, 2010 at 6:53 AM, Nicholas Couture, LEED AP <span dir="ltr"><<a href="mailto:ncouture@emtec-engineers.com">ncouture@emtec-engineers.com</a>></span> wrote:<br>
<blockquote style="BORDER-LEFT: #ccc 1px solid; MARGIN: 0px 0px 0px 0.8ex; PADDING-LEFT: 1ex" class="gmail_quote">
<div>
<div dir="ltr" align="left"><span><font color="#0000ff" size="2" face="Arial">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><font color="#0000ff" size="2" face="Arial"></font></span> </div>
<div dir="ltr" align="left"><span><font color="#0000ff" size="2" face="Arial">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 class="im">
<div><font color="#0000ff" size="2" face="Arial"></font> </div>
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<div align="left"><font color="#757575" size="3" face="Garamond">Nick Couture, LEED AP</font></div>
<div align="left"><font color="#757575" face="Garamond">Mechanical Engineer</font>
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<p><font color="gray" size="2" face="Garamond">3555 Veteran's Memorial Highway, Suite M</font><font color="gray" face="Garamond"><br></font><font color="gray" size="2" face="Garamond">Ronkonkoma, NY 11779</font><font color="gray" face="Garamond"><br>
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<div align="left"><font size="1" face="Garamond">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>
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<hr>
<font size="2" face="Tahoma"><b>From:</b> <a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org" target="_blank">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Nicholas Couture, LEED AP<br>
<b>Sent:</b> Tuesday, April 27, 2010 4:39 PM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org" target="_blank">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] PVVT vs. PSZ<br></font><br>
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<div>
<div></div>
<div class="h5">
<div></div>
<div><span><font size="2" face="Arial">Hello,</font></span></div>
<div><span><font size="2" face="Arial"></font></span> </div>
<div><span><font size="2" face="Arial">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><font size="2" face="Arial"></font></span> </div>
<div><span><font size="2" face="Arial">thanks,</font></span></div>
<div><font size="2"></font> </div>
<div align="left"><font color="#757575" size="3" face="Garamond">Nick Couture, LEED AP</font></div>
<div align="left"><font color="#757575" face="Garamond">Mechanical Engineer</font>
<p><font size="2"><img border="0" hspace="0" alt="" align="baseline" src="cid:172292612@28042010-03E9"></font></p></div>
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<p><font color="gray" size="2" face="Garamond">3555 Veteran's Memorial Highway, Suite M</font><font color="gray" face="Garamond"><br></font><font color="gray" size="2" face="Garamond">Ronkonkoma, NY 11779</font><font color="gray" face="Garamond"><br>
</font><font color="gray" size="2" face="Garamond">Tel: 631.981.3990 ext. 230</font><font color="gray" face="Garamond"><br></font><font color="gray" size="2" face="Garamond">Fax: 631.981.3971</font><font color="gray" face="Garamond"><br>
</font><font color="gray" size="2" face="Garamond"><a href="mailto:ncouture@emtec-engineers.com" target="_blank">ncouture@emtec-engineers.com</a></font><font color="gray" face="Garamond"><br></font></p>
<p><a title="Emtec Consulting Engineers" href="http://www.emtec-engineers.com/" target="_blank"><font title="http://www.emtec-engineers.com/" color="green">www.emtec-engineers.com </font></a></p>
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