<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle19
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle20
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle21
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle22
{mso-style-type:personal;
font-family:"Calibri",sans-serif;
color:windowtext;}
span.EmailStyle25
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:60712303;
mso-list-template-ids:1236979542;}
@list l1
{mso-list-id:834954252;
mso-list-type:hybrid;
mso-list-template-ids:423150882 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l1:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l1:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l1:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l1:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l2
{mso-list-id:1222062798;
mso-list-template-ids:-1581193500;}
@list l2:level1
{mso-level-start-at:2;
mso-level-tab-stop:.5in;
mso-level-number-position:left;
text-indent:-.25in;}
@list l3
{mso-list-id:1381318376;
mso-list-type:hybrid;
mso-list-template-ids:-1730895468 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l3:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l3:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l3:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l3:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l3:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l3:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l3:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l3:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l3:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l4
{mso-list-id:1648778789;
mso-list-type:hybrid;
mso-list-template-ids:-60236420 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l4:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l4:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l4:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l4:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l4:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l4:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l4:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l4:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l4:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l5
{mso-list-id:1650355941;
mso-list-template-ids:1362936218;}
@list l6
{mso-list-id:2056849400;
mso-list-type:hybrid;
mso-list-template-ids:1618803060 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l6:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l6:level2
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l6:level3
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l6:level4
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l6:level5
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l6:level6
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
@list l6:level7
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l6:level8
{mso-level-number-format:alpha-lower;
mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
@list l6:level9
{mso-level-number-format:roman-lower;
mso-level-tab-stop:none;
mso-level-number-position:right;
text-indent:-9.0pt;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="#0563C1" vlink="#954F72">
<div class="WordSection1">
<p class="MsoNormal">Nick, thanks for the response. Regarding my questions:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l6 level1 lfo8">Question 1: I am also aware of and checked the simulation report file that you show below. If you are correct in that my ZONE HEATING does read 0, then Question #2 becomes more important.<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l6 level1 lfo8">Question 2: The Design Heating Capacity in the Airside HVAC Summary does not match the correspond SV-A Heating coil size. The Design Heating Capacity appears to equal the SV-A coil
size plus the SV-A ADDITION RATE. Is this some kind of error in the program and was the Design Heating Capacity only supposed to be the SV-C coil size?
<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l6 level1 lfo8">Question 3: I removed the DOA from the model and the SV-C heating coil EDB temperature reduced from 72 F to 61 F. I still don’t know where it comes from or how to manipulate it. Can
someone show me where this value originates?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l6 level1 lfo8">Question 4: It is possible that the LS-A and B reports showing only the non-ventilation maximum and minimum conditions may not reflect the actual maximum and minimum heating conditions
for the zone and that is why the Heating Furnace Design Day Peak occurs on 4/8/8 in SV-C instead of 11/29. If so, where is the temperature profile used for this maximum load calculation shown and how do I adjust it?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The point is that I suspect there is something hinky about the heating coil sizing.
<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo9">The heating coil size in the SV-A and SV-C reports do not match the Design Heating Capacity in the Airside HVAC Summary. The Design Heating Capacity appears to be equal to the SV-A
coil size plus the ADDITION RATE. Why is this? Is this an error in the program? Is it supposed to be the heating coil size shown in SV-A?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l3 level1 lfo9">The SV-C heating coil size is based on an EDB/EWB temperature derived from where? 72 F is an unreasonable EDB for a heating coil size. If the heating set point is 70 F (which it is
in this model) and we have a night setback of 55 F, which we do in this model, and outside air pouring in through a 50% sensible heat exchanger in the early hours of the morning, the lowest possible temperature the heating coil is going to see is not 72 F.
Where does this heating coil EDB\EWB temperature come from and how can I view it and manipulate it?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Kathryn Kerns</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#1F497D">Systems Specialist</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">BCE</span></b><b><span style="font-size:10.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">
</span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">Engineers, Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Times New Roman",serif;color:black">| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></b><span style="font-size:7.0pt;font-family:"Times New Roman",serif;color:black">
<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Nicholas Caton <Nicholas.Caton@se.com> <br>
<b>Sent:</b> Thursday, September 26, 2019 10:32 PM<br>
<b>To:</b> Kathryn Kerns <kathryn.kerns@bceengineers.com><br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> RE: Questions regarding Heating Coil sizing for 3.65.7175<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hey Sorry for the delay in my response – I (and perhaps a number of others who might otherwise see & respond) am attending the building energy conference this week in Denver.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Here’s my take:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3">To distinguish/understand addition rate vs heating rate, I would refer you to the following resource, from which I’m highlighting a page addressing and explaining the SV-A report in
further detail. Note I personally reference this PDF as a primary/starting resource anytime I too am unsure of the nuances/meaning of specific SIM outputs:
<o:p></o:p></li></ol>
<p class="MsoListParagraph"><img width="756" height="272" style="width:7.875in;height:2.8333in" id="Picture_x0020_3" src="cid:image001.png@01D5750C.2B416120"><o:p></o:p></p>
<p class="MsoListParagraph"><img width="993" height="807" style="width:10.3416in;height:8.4083in" id="Picture_x0020_4" src="cid:image002.png@01D5750C.2B416120"><o:p></o:p></p>
<p class="MsoListParagraph">That you have zonal heating set to ‘None’ is in fact reflected in the zeroes under heating rate (in the provided attachments). I think you may constructively consider ADDITION RATE (and its counterpart EXTRACTION RATE) to be indicators
from the LOADS portion of the simulation run, used to inform the autosizing for the whole systems auto sized airflow capacity (which you haven’t specified).
<o:p></o:p></p>
<ol style="margin-top:0in" start="2" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3">I apologize, but after re-reading #2 a few times I’m unclear on what specifically is being asked. Please rephrase =).<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3">I suspect the 74F stat in your project is the calculated net result of the return air in the heating design day to the furnace after considering the system coil leaving temperature,
internal heat gains, and whatever may exist for heat losses in the space(s) served. In a system NOT involving a DOA, I would intuitively expect this to reflect the mixed air temperature (return + OA), but in your case a DOA is covering the ventilation it
appears so I think perhaps MA = RA?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l4 level1 lfo3">Once again, I think the detailed sim output reference provides some clues. It’s fair to note that there isn’t an entry (at the time of this writing) in that PDF resource for some
of the newer (?) reports like SV-C for coil sizing, but pay mind that the ‘S’ in the SV-C report indicates it’s reporting from the SYSTEMS portion of the simulation run, which follows and builds upon the LOADS portion of the simulation (‘L’ in LS-A). That
context helps with interpreting the paragraph I’ve boxed in the following snip:<o:p></o:p></li></ol>
<p class="MsoListParagraph"><img width="1029" height="864" style="width:10.7166in;height:9.0in" id="Picture_x0020_6" src="cid:image004.png@01D5750C.2B416120"><o:p></o:p></p>
<p class="MsoNormal"> I’m curious if in your model you might find a matching (or a third) time and date stamp when checking the ‘Standard’ LS-A over the DESIGN DAY LS-A. Regardless, it would seem apparent that the SV-C report is incorporating
OADB conditions in your weather file whereas the LS-A you provided a snippet of is relying upon your DESIGN DAY inputs & sizing ahead of the listed effects introduced in simulation including ventilation loads, motor heat, plenum light heat…<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I hope that makes some headway into clearing the air!<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#3A7A46">Nick Caton, P.E., BEMP</span></b><span style="color:#3A7A46"><o:p></o:p></span></p>
<table class="MsoNormalTable" border="0" cellspacing="0" cellpadding="0" width="724" style="width:543.0pt;border-collapse:collapse">
<tbody>
<tr>
<td width="230" valign="top" style="width:172.3pt;padding:0in 0in 0in 0in">
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Senior Energy Engineer</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Schneider Electric of North America<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy and Sustainability Services</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"> Energy Performance Contracting
</span><span style="font-size:9.0pt;color:#1F497D"><o:p></o:p></span></p>
</td>
<td width="16" valign="top" style="width:11.8pt;padding:0in 0in 0in 0in">
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#57B069">D </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#57B069">M </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#57B069">F </span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#1F497D"><br>
</span><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#57B069">E </span><span style="font-size:9.0pt;color:#1F497D">
<o:p></o:p></span></p>
</td>
<td width="275" valign="top" style="width:206.5pt;padding:0in 0in 0in 0in">
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">913 . 564 . 6361<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">785 . 410 . 3317<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">913 . 564 . 6380<o:p></o:p></span></p>
<p class="MsoNormal"><u><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469"><a href="mailto:nicholas.caton@se.com"><span style="font-family:"Calibri",sans-serif;color:#626469">nicholas.caton@se.com</span></a></span></u><span style="font-size:9.0pt;color:#1F497D"><o:p></o:p></span></p>
</td>
<td width="203" valign="top" style="width:152.4pt;padding:0in 0in 0in 0in">
<p class="MsoNormal" align="right" style="text-align:right"><span style="font-size:9.0pt;font-family:"Arial",sans-serif;color:#626469">15200 Santa Fe Trail Drive<br>
Suite 204<br>
Lenexa, KS 66219<br>
United States</span><span style="font-size:9.0pt;color:#1F497D"><o:p></o:p></span></p>
</td>
</tr>
<tr style="height:4.0pt">
<td width="724" colspan="4" valign="top" style="width:543.0pt;padding:0in 0in 0in 0in;height:4.0pt">
<p class="MsoNormal" style="mso-line-height-alt:4.0pt"><span style="color:#3A7A46"><img border="0" width="722" height="49" style="width:7.525in;height:.5083in" id="Picture_x0020_2" src="cid:image005.png@01D5750C.2B416120"></span><span style="color:#3A7A46"><o:p></o:p></span></p>
</td>
</tr>
</tbody>
</table>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Kathryn Kerns <<a href="mailto:kathryn.kerns@bceengineers.com">kathryn.kerns@bceengineers.com</a>>
<br>
<b>Sent:</b> Thursday, September 26, 2019 3:57 PM<br>
<b>To:</b> Nicholas Caton <<a href="mailto:Nicholas.Caton@se.com">Nicholas.Caton@se.com</a>><br>
<b>Subject:</b> FW: Questions regarding Heating Coil sizing for 3.65.7175<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div class="MsoNormal" align="center" style="text-align:center">
<hr size="2" width="100%" align="center">
</div>
<p> <o:p></o:p></p>
<div>
<p class="MsoNormal">Nick, I haven’t heard back from anyone so there is probably no clear answer. Do you know how to contact anyone responsible for eQuest’s latest revision that might be able to answer these questions? I would really like an answer to Question
#3 about where the heat capacity sizing EDB\EWB comes from. It really doesn’t make any sense. I know the HX is not providing the EDB\EWB listed, around 72 F. It should be more like 55 F.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Kathryn Kerns</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#1F497D">Systems Specialist</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">BCE</span></b><b><span style="font-size:10.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">
</span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">Engineers, Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Times New Roman",serif;color:black">| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></b><span style="font-size:7.0pt;font-family:"Times New Roman",serif;color:black">
<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Kathryn Kerns <br>
<b>Sent:</b> Tuesday, September 24, 2019 4:43 PM<br>
<b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br>
<b>Subject:</b> FW: Questions regarding Heating Coil sizing for 3.65.7175<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Everyone, I seem to have sent the message without the files. See attached.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Nick, thanks for calling.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Kathryn Kerns</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#1F497D">Systems Specialist</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">BCE</span></b><b><span style="font-size:10.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">
</span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">Engineers, Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Times New Roman",serif;color:black">| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></b><span style="font-size:7.0pt;font-family:"Times New Roman",serif;color:black">
<o:p></o:p></span></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Kathryn Kerns <br>
<b>Sent:</b> Monday, September 23, 2019 1:10 PM<br>
<b>To:</b> Equest-users <<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>><br>
<b>Cc:</b> Joshua Wood <<a href="mailto:joshua.wood@bceengineers.com">joshua.wood@bceengineers.com</a>><br>
<b>Subject:</b> Questions regarding Heating Coil sizing for 3.65.7175<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Everyone, I have been looking at the SV-A and SV-C reports for eQuest 3.65.7175 and I am confused. I have a zone with a typical PSZ furnace/DX with no reheat HVAC system related an auxiliary gym space.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The heating parameters are defined in the attached files called 218-112 Totem Base1 PSZ Furnace,DX, NoReheat Parameters and 218-112 Totem Base1 PSZ Furnace,DX, No Reheat HTG Parameters.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The resulting 218-112 Totem Base1 PSZ Furnace,DX, No Reheat SV-A & SV-C file (see attached) shows a Heating Furnace sized at 89.28 kbtu/hr using a 74.83 F EDB and a 90 F LDB. There is a heat exchanger present 0.5\0.5 Sensible\Latent. (see
218-112 Totem Base DOA SV-A attached)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The resulting 218-112 Totem Base1 PSZ Furnace,DX, No Reheat Airside HVAC Summary (see attached) shows a Heat Design Capacity of 58.0 Btu/sf. Multiply 58.0 by 3384 sf (area shown) = 196 kbtu/hr Design Capacity.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There is a big difference between 82.28 kbtu/hr and 196 kbtu/hr. Curiously, the difference appears to be equal to the -107.03 kbtu/hr , the Zone ADDITION RATE shown in SV-A<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The questions are:<o:p></o:p></p>
<ol style="margin-top:0in" start="1" type="1">
<li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo7">What does the ADDITION RATE represent and why does it show up as ZONE HEATING value when ZONE HEATING is defined as “None”?
<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo7">Why does the ADDITION RATE shown up in the Airside HVAC Summary as part to the Design Heating Capacity when the corresponding SV-A Furnace Size does not include this value?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo7">How is the Heating Furnace Design Capacity EDB\EWB temperature calculated? Is there a value that gets set in the input file somewhere? If so, where?<o:p></o:p></li><li class="MsoListParagraph" style="margin-left:0in;mso-list:l1 level1 lfo7">Why does the Heating Furnace Design Day Peak occur on 4/8/8 in SV-C when the LS-A (see attached) shows a maximum load date of 11/29?<o:p></o:p></li></ol>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">These are probably questions only the eQuest staff can answer. Does anyone know how to contact them?<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Arial",sans-serif;color:black">Kathryn Kerns</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Arial",sans-serif;color:#1F497D">Systems Specialist</span></b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">BCE</span></b><b><span style="font-size:10.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">
</span></b><b><span style="font-size:12.0pt;font-family:"Times New Roman",serif;font-variant:small-caps;color:teal">Engineers, Inc.<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;font-family:"Times New Roman",serif;color:black">| Ph: 253.922.0446 | Fx: 253.922.0896 |</span></b><span style="font-size:7.0pt;font-family:"Times New Roman",serif;color:black">
<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><br>
______________________________________________________________________<br>
This email has been scanned by the Symantec Email Security.cloud service.<br>
______________________________________________________________________<o:p></o:p></p>
</div>
</div>
</body>
</html>