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<p class="MsoNormal"><span style="font-family:"Franklin Gothic Book",sans-serif;color:#1F497D">Well the equation is Q=1.085*CFM*ÄT so it is dependent more on your return/mixed air temperature (which is based on your design temps obviously) you can solve for
one ton of load based on your conditions. But you have to start with an assumed mixed air temp and work your psych chart to determine if you are also meeting the latent load. To answer your other question we simply do not input any ventilation information,
so zeroed out. And if you look at the room reports there is no ventilation load listed under the rooms itself that’s why we ended up using those reports they are strictly that, room loads.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"Franklin Gothic Book",sans-serif;color:black">Thank You,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Franklin Gothic Book",sans-serif;color:black">Matthew J. Baron, PE<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Franklin Gothic Book",sans-serif;color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Franklin Gothic Medium",sans-serif;color:#1F497D"><img width="132" height="53" id="_x0000_i1026" src="cid:image003.jpg@01D209E1.CE564EA0"></span></b><b><span style="color:black"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black">Wendel, Centerpointe Corporate Park, 375 Essjay Road, Suite 200, Williamsville, NY 14221 <br>
</span><b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">p.
</span></b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">716.688.0766<b> tf.</b> 877.293.6335<b> e.
</b></span><span style="color:#1F497D"><a href="mailto:mbaron@wendelcompanies.com"><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif">mbaron@wendelcompanies.com</span></a></span><b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">
w.</span></b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">
</span><span style="color:#1F497D"><a href="http://www.wendelcompanies.com/"><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif">wendelcompanies.com</span></a></span><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black"><br>
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<p class="MsoNormal" style="text-align:justify"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black;text-transform:uppercase;letter-spacing:1.0pt">architecture | engineering | planning | energy efficiency | construction
management<o:p></o:p></span></p>
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<p class="MsoNormal"><b>From:</b> Trevis Cardinez [mailto:engineer2@welchmorris.com]
<br>
<b>Sent:</b> Thursday, September 08, 2016 2:47 PM<br>
<b>To:</b> Matthew J. Baron <mbaron@wendelcompanies.com><br>
<b>Subject:</b> RE: [Hap-users] Manipulating HAP<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-TT" style="color:#1F497D">Well yea its really high due to the fact that the building was mostly glass and in our weather conditions, this would produce alot of sensible heat load. This hence will cause the high required cfm
since the cfm is directly proportional to the sensible heat....E=mcÄT. What I am curious off though, is what method you used to remove the ventilation load? Did you make the OA requirements in the spaces zero or you had an alternative means via the systems
tab?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-TT" style="color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span lang="EN-TT" style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:#1F497D">Trevis Cardinez<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">Mechanical Engineer<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">Welch, Morris + Associates Ltd.<br>
Athelstane Building,<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">59 Chacon Street,<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">San Fernando.<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">Tel: 1-868-657-0183/657-0582<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">Fax:1-868-653-2381<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">Mobile: 1-868-373-4935<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">Email: <a href="mailto:engineer2@welchmorris.com">
engineer2@welchmorris.com</a><o:p></o:p></span></i></b></p>
<p class="MsoNormal"><b><i><span style="color:#1F497D">Website: <a href="http://www.welchmorris.com">
www.welchmorris.com</a></span></i></b><span style="color:#1F497D"><o:p></o:p></span></p>
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<p class="MsoNormal"><i><span style="color:#1F497D">This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify
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sender immediately by e-mail if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma",sans-serif"> Matthew J. Baron [<a href="mailto:mbaron@wendelcompanies.com">mailto:mbaron@wendelcompanies.com</a>]
<br>
<b>Sent:</b> Thursday, 08 September 2016 02:30 PM<br>
<b>To:</b> Trevis Cardinez<br>
<b>Subject:</b> RE: [Hap-users] Manipulating HAP<o:p></o:p></span></p>
</div>
</div>
<p class="MsoNormal"><span lang="EN-TT"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Franklin Gothic Book",sans-serif;color:#1F497D">We ran into a similar issue when first utilizing HAP, our solution has been to use the room load reports and totalize the sensible and latent room load without entering
the ventilation information in HAP then we use a spreadsheet to the determine the additional ventilation load based on enthalpy. We have also in the past, when the cfm requirement was less stringent, given the OA cfm requirements and space load data to an
equipment vendor along with design conditions for return and outdoor air and let them determine the overall cfm. Our typical number we see is 350 to 400 cfm/ton of total load. If you are at 550 cfm /ton that seems unusually high.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Franklin Gothic Book",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<div>
<p class="MsoNormal"><span style="font-family:"Franklin Gothic Book",sans-serif;color:black">Thank You,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Franklin Gothic Book",sans-serif;color:black">Matthew J. Baron, PE<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-family:"Franklin Gothic Book",sans-serif;color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Franklin Gothic Medium",sans-serif;color:#1F497D"><img border="0" width="132" height="53" id="Picture_x0020_6" src="cid:image004.jpg@01D209E0.FED482F0"></span><span style="color:black"><o:p></o:p></span></b></p>
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<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black">Wendel, Centerpointe Corporate Park, 375 Essjay Road, Suite 200, Williamsville, NY 14221 <br>
</span><b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">p.
</span></b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">716.688.0766<b> tf.</b> 877.293.6335<b> e.
</b></span><span style="color:#1F497D"><a href="mailto:mbaron@wendelcompanies.com"><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif">mbaron@wendelcompanies.com</span></a></span><b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">
w.</span></b><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif;color:black">
</span><span style="color:#1F497D"><a href="http://www.wendelcompanies.com/"><span style="font-size:9.0pt;font-family:"Century Gothic",sans-serif">wendelcompanies.com</span></a></span><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black"><br>
</span><span style="font-size:4.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black">
<br>
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify"><span style="font-size:9.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black;text-transform:uppercase;letter-spacing:1.0pt">architecture | engineering | planning | energy efficiency | construction
management<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:8.0pt;font-family:"Franklin Gothic Book",sans-serif;color:black">CONFIDENTIALITY NOTICE: This email transmission is confidential and is intended only for the person(s) named above. Any distribution, copying or disclosure
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<p class="MsoNormal"><b>From:</b> Hap-users [<a href="mailto:hap-users-bounces@lists.onebuilding.org">mailto:hap-users-bounces@lists.onebuilding.org</a>]
<b>On Behalf Of </b>Trevis Cardinez via Hap-users<br>
<b>Sent:</b> Thursday, September 08, 2016 11:37 AM<br>
<b>To:</b> <a href="mailto:hap-users@lists.onebuilding.org">hap-users@lists.onebuilding.org</a><br>
<b>Subject:</b> [Hap-users] Manipulating HAP<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-TT"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-TT">So I got an issue where my cooling load requirement was roughly 12 tons while my airflow requirement was approx 6600 cfm. When searching for a packaged unit to serve this purpose, I saw a little problem getting a unit
that’s not too large and can satisfy the cfm requirement in particular. So my attempt now, is to split the room load and ventilation load, hence the cfm as well, and use two smaller units to meet my requirements. My question now is how do I model HAP to obtain
my room load only? Do I need to take of the OA requirements in the space itself or I can do something about it in the system itself?<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-TT"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:12.0pt">Trevis Cardinez<o:p></o:p></span></b></p>
<p class="MsoNormal"><b><i>Mechanical Engineer<o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>Welch, Morris + Associates Ltd.<br>
Athelstane Building,<o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>59 Chacon Street,<o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>San Fernando.<o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>Tel: 1-868-657-0183/657-0582<o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>Fax:1-868-653-2381<o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>Mobile: 1-868-373-4935<o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>Email: <a href="mailto:engineer2@welchmorris.com">engineer2@welchmorris.com</a><o:p></o:p></i></b></p>
<p class="MsoNormal"><b><i>Website: <a href="http://www.welchmorris.com">www.welchmorris.com</a></i></b><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><i>This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify the system manager at Welch
Morris and Associates. This message contains confidential information and is intended only for the individual named. If you are not the named addressee you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately by e-mail
if you have received this e-mail by mistake and delete this e-mail from your system. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly
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