<html><body><div style="color:#000; background-color:#fff; font-family:arial, helvetica, sans-serif;font-size:10pt"><br><div style="font-family: arial, helvetica, sans-serif; font-size: 10pt;"><div style="font-family: times new roman, new york, times, serif; font-size: 12pt;"><span>Hi Jeremy,</span><div id="yiv1389021722"><div style="color:#000;background-color:#fff;font-family:arial, helvetica, sans-serif;font-size:10pt;"><div><br><span></span></div><div><span>Yes there are a few areas with significant glazing, although the majority of the areas have relatively small glazing areas. The building is located near Toronto, so yes heating is required in winter. For one zone, the perimeter heating consists of radiant panels. Almost all rooms within this zone show this warning. <br></span></div><div><br><span></span></div><div><span>The 2nd zone is a VAV system that does not have any reheat or baseboards, so I would expect this warning to pop up.
<br></span></div><div><span><br></span></div><div><span> My question still is should this not show up as unmet heating hours in the SV-R report if there is a heating problem? Both zones have almost zero unmet heating
hours. </span></div><div><br><span></span></div><div><span>Thanks.<br></span></div><div><br></div><div style="font-family:arial, helvetica, sans-serif;font-size:10pt;"><div style="font-family:times new roman, new york, times, serif;font-size:12pt;"><font face="Arial" size="2"><hr size="1"><b><span style="font-weight:bold;">From:</span></b> Jeremy Poling <Jeremy.Poling@transwestern.net><br><b><span style="font-weight:bold;">To:</span></b> Brad Robinson <brad.robinson@yahoo.com>; equest-users@lists.onebuilding.org<br><b><span style="font-weight:bold;">Sent:</span></b> Monday, July 25, 2011 10:16:47 AM<br><b><span style="font-weight:bold;">Subject:</span></b> RE: [Equest-users] Fw: insufficient heating capability<br></font><br><div id="yiv1389021722"><style><!--
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--></style><div class="yiv1389021722WordSection1"><div class="yiv1389021722MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">By chance, does the building have a significant amount of glass at the exterior in a climate where heating is required at some point during the year? I have seen this warning persist in energy models of buildings where the envelope load is unsatisfied due to lack of baseboard heat. This is a design issue, though, and should probably be brought up to the system designer instead of tweaked in the model until it goes away. Cost and aesthetics are often used as reasons to eliminate baseboard heat, whereas the energy model and some basic ASHRAE 55 calcs may show that to be a bad choice (or at least give the energy modeler and the system designer a CYA when the occupants start complaining).</span></div><div class="yiv1389021722MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div><div
class="yiv1389021722MsoNormal"><span style="font-size:11.0pt;color:#1F497D;">Just a thought…</span></div><div class="yiv1389021722MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div><div><div class="yiv1389021722MsoNormal"><b><span style="font-size:7.5pt;color:#1F497D;">Jeremy R. Poling, PE, LEED AP+BDC</span></b><span style="font-size:11.0pt;color:#1F497D;"><br><br></span><span style="font-size:11.0pt;color:#1F497D;"></span></div></div><div class="yiv1389021722MsoNormal"><span style="font-size:11.0pt;color:#1F497D;"> </span></div><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;"><div class="yiv1389021722MsoNormal"><b><span style="font-size:10.0pt;">From:</span></b><span style="font-size:10.0pt;"> equest-users-bounces@lists.onebuilding.org [mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Brad Robinson<br><b>Sent:</b> Monday, July 25, 2011 6:48 AM<br><b>To:</b>
equest-users@lists.onebuilding.org<br><b>Subject:</b> [Equest-users] Fw: insufficient heating capability</span></div></div></div><div class="yiv1389021722MsoNormal"> </div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="font-size:10.0pt;color:black;"> </span></div><div><div><div id="yiv1389021722"><div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div><div id="yiv1389021722"><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="font-size:10.0pt;color:black;">I am not clear what this warning is saying as the wording is "MIGHT" have insufficient heating capability. I too am getting this warning, but I have very little unmet heating hours. Increasing the cfm/sq.ft only increases total energy use but does not get rid of the warning. It seems to me it may be a software issue rather than a design
issue?</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="font-size:10.0pt;color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="font-size:10.0pt;color:black;"> </span></div></div><div><div><div class="yiv1389021722MsoNormal" style="text-align:center;background:white;" align="center"><span style="font-size:10.0pt;color:black;"><hr align="center" size="1" width="100%"></span></div><div class="yiv1389021722MsoNormal" style="margin-bottom:12.0pt;background:white;"><b><span style="font-size:10.0pt;color:black;">From:</span></b><span style="font-size:10.0pt;color:black;"> DongEun Kim <equested@gmail.com><br><b>To:</b> Carol Gardner <cmg750@gmail.com><br><b>Cc:</b> equest-users@lists.onebuilding.org<br><b>Sent:</b> Monday, July 25, 2011 7:12:44 AM<br><b>Subject:</b> Re: [Equest-users] insufficient heating capability</span><span
style="color:black;"></span></div><div id="yiv1389021722"><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Thank you Carol!</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">I modified "Min Design Flow(cfm/ft2) .</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">However, "insufficient heating" warning is keep showing. </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span
style="color:black;">Only thing seems to work to solve this problem is to increase heating capacity is Reheat delta T.</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">(Its system is VAV with
Reheat).</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">What I can't understand the most is that specifying heating capacity of main heating coil doesn't </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">affect the heating capacity anyhow.</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Any thoughts on this anyone???</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span
style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Thank you!</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">DE</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">2011/7/25 Carol Gardner <<a rel="nofollow" ymailto="mailto:cmg750@gmail.com" target="_blank" href="mailto:cmg750@gmail.com">cmg750@gmail.com</a>></span></div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Hi DE,<br><br>If you look around at all the defaults you will probably find that somewhere eQUEST
is
defaulting to 0.5 cfm/sf for your supply air. This is often insufficient to meet your heating/cooling requirements. Things I have done in the past to fix this is to use the same cfm/sf as the proposed building uses, or look in the little ASHRAE Pocket Guide for what they recommend for your building type. These two numbers will likely be similar<br><br>Carol. </span></div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">On Sun, Jul 24, 2011 at 5:16 PM, DongEun Kim <<a rel="nofollow" ymailto="mailto:equested@gmail.com" target="_blank" href="mailto:equested@gmail.com">equested@gmail.com</a>> wrote:</span></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Thank you John,</span></div></div><div><div class="yiv1389021722MsoNormal"
style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">But isn't airflow supposed to be auto-sized if not specified?</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">I intentionally leave the flowrate blank to let the program calculate the cfm that serves load the best.</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Should still I specifiy cfm?</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span
style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="margin-bottom:12.0pt;background:white;"><span style="color:black;">DE</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">2011/7/23 John Aulbach <<a rel="nofollow" ymailto="mailto:jra_sac@yahoo.com" target="_blank" href="mailto:jra_sac@yahoo.com">jra_sac@yahoo.com</a>></span></div><div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Try increasing airflow.</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><b><span style="font-size:10.0pt;color:black;">From:</span></b><span style="font-size:10.0pt;color:black;"> DongEun Kim
<<a rel="nofollow" ymailto="mailto:equested@gmail.com" target="_blank" href="mailto:equested@gmail.com">equested@gmail.com</a>><br><b>To:</b> <a rel="nofollow" ymailto="mailto:equest-users@lists.onebuilding.org" target="_blank" href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Sent:</b> Friday, July 22, 2011 12:13 AM<br><b>Subject:</b> [Equest-users] insufficient heating capability</span><span style="color:black;"></span></div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Hi eQuesters!</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Can anyone help me
here?</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">I installed main heating coil as well as reheat coil with delta T=30.</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Heating capacity and cfm is not defined so that they will be auto-sized.</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">And, I keep having this warning saying that the system "might have insufficient heating
capability."</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">I increased "Zone Entering Max Supply Temp", "Hot Deck Max Leaving Temp." But, the problem stays.</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">How do I increase the heating capability?</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">Thank you !!</span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span
style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;">DE</span></div></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"><br> </span></div></div></div><div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div></div><div class="yiv1389021722MsoNormal" style="background:white;"><span style="color:black;"> </span></div></div></div><div class="yiv1389021722MsoNormal" style="margin-bottom:12.0pt;background:white;"><span style="color:black;">_______________________________________________<br>Equest-users mailing list<br><a rel="nofollow" target="_blank"
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