<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 12 (filtered medium)"><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;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.MsoAcetate, li.MsoAcetate, div.MsoAcetate
{mso-style-priority:99;
mso-style-link:"Balloon Text Char";
margin:0in;
margin-bottom:.0001pt;
font-size:8.0pt;
font-family:"Tahoma","sans-serif";}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
span.BalloonTextChar
{mso-style-name:"Balloon Text Char";
mso-style-priority:99;
mso-style-link:"Balloon Text";
font-family:"Tahoma","sans-serif";}
.MsoChpDefault
{mso-style-type:export-only;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></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=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If it was me, I'd just set the space temperature to 75 degrees, knowing that the difference between that and 71.6 degrees probably won't make a huge difference in the savings between baseline and proposed.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I thought I remember seeing something from Jeff Hirsch a while back that showed how to de-activate this particular alarm so that the model would run??<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#4D4F53'>GHT Limited<o:p></o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>James Hansen, PE, LEED AP, BEMP<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>Senior Associate<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>1110 N. Glebe Road, Suite 300<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>Arlington, VA 22201<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>703.243.1200 (main)<o:p></o:p></span></b></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>703.338.5754 (direct/cell)<o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.ghtltd.com"><b><span style='font-size:10.0pt;color:#C4BA00;text-decoration:none'>www.ghtltd.com</span></b></a></span><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#C4BA00'><o:p></o:p></span></b></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><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"'> Hala Jaber [mailto:halajaber82@gmail.com] <br><b>Sent:</b> Wednesday, January 22, 2014 4:30 PM<br><b>To:</b> James Hansen; equest-users@lists.onebuilding.org<br><b>Subject:</b> Re: [Equest-users] Baseline Fan power calculation<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p><div><div><p class=MsoNormal>Dear James, thank you, but i have already set the warmest rest temp as required by section G3.1.3.12 supply air temerature reset, but still i have the problem in the 20 degree difference between the 71.6 and the cooling coil supply temp.<o:p></o:p></p></div><div><p class=MsoNormal>I hope if this clarify more my question.<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>Hala Jaber.</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>Sustainable Design Engineer.; LEED AP BD +C .</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>+962-79-7570197</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>email: </span><span style='font-family:"Arial","sans-serif";color:#222222'><a href="mailto:halajaber82@gmail.com"><span style='color:#3333FF'>halajaber82@gmail.com</span></a></span><o:p></o:p></p><div><p class=MsoNormal>On Wed, Jan 22, 2014 at 11:57 PM, James Hansen <<a href="mailto:JHANSEN@ghtltd.com">JHANSEN@ghtltd.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>System 8 has a main AHU that feeds parallel fan powered VAV boxes. For your main AHU, you need to make sure your cooling reset temperature for supply air (LAT) is set to "warmest".</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#4D4F53'>GHT Limited</span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>James Hansen, PE, LEED AP, BEMP</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>Senior Associate</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>1110 N. Glebe Road, Suite 300</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>Arlington, VA 22201</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>703.243.1200 (main)</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Calibri","sans-serif";color:#0C3844'>703.338.5754 (direct/cell)</span></b><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><a href="http://www.ghtltd.com"><b><span style='font-size:10.0pt;color:#C4BA00;text-decoration:none'>www.ghtltd.com</span></b></a></span><o:p></o:p></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> </span><o:p></o:p></p><div style='border:none;border-top:solid windowtext 1.0pt;padding:3.0pt 0in 0in 0in;border-color:currentColor currentColor'><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><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"'> <a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a> [mailto:<a href="mailto:equest-users-bounces@lists.onebuilding.org">equest-users-bounces@lists.onebuilding.org</a>] <b>On Behalf Of </b>Hala Jaber<br><b>Sent:</b> Wednesday, January 22, 2014 3:56 PM<br><b>To:</b> <a href="mailto:equest-users@lists.onebuilding.org">equest-users@lists.onebuilding.org</a><br><b>Subject:</b> [Equest-users] Baseline Fan power calculation</span><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p><div><div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>Thanks James,but what do you mean by LAT, in addition to the fact that i<br>have modeled the chilled water supply temperature reset as per the<br>requirement the rest based on outdoor dry bulb temp using :44 F at 80 f and<br>above, 54 f at 60 f and below, so how can i compromise this since the<br>actual thermostat cooling set point is 71.6, and i don't have AHU in<br>baseline, its system 8.<br>Thanks alot</span><o:p></o:p></p><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Arial","sans-serif";color:#222222'> </span><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-family:"Arial","sans-serif";color:#222222'>-- </span><o:p></o:p></p><div><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>Hala Jaber.</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>Sustainable Design Engineer.; LEED AP BD +C .</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>+962-79-7570197</span><o:p></o:p></p><p><span style='font-family:"Arial","sans-serif";color:#3333FF'>email: </span><span style='font-family:"Arial","sans-serif";color:#222222'><a href="mailto:halajaber82@gmail.com"><span style='color:#3333FF'>halajaber82@gmail.com</span></a></span><o:p></o:p></p></div></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>On Jan 22, 2014 8:24 PM, "James Hansen" <<a href="mailto:JHANSEN@ghtltd.com">JHANSEN@ghtltd.com</a>> wrote:<br><br>> If your CHW supply temp is 44F, and your LAT setpoint for the AHU is 51.6,<br>> then you are 6F higher. Check your reset schedules - if you allow reset<br>> for CHW without also allowing reset for the AHU (both per ASHRAE), you may<br>> have a condition where the CHW supply is within 6 degrees of your LAT.<br>><br>><br>><br>> GHT Limited<br>></span><o:p></o:p></p></div></div><div><p class=MsoNormal>> *James Hansen, PE, LEED AP, BEMP*<br>><br>> *Senior Associate*<br>><br>> *1110 N. Glebe Road, Suite 300*<br>><br>> *Arlington, VA 22201*<br>><o:p></o:p></p></div><p class=MsoNormal>> *<span style='font-size:10.0pt;background:white'> 703.243.1200</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> (main)*<br>><br>> *</span><span style='font-size:10.0pt;background:white'> 703.338.5754</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'> (direct/cell)*<br>><br>> *</span><a href="http://www.ghtltd.com/"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>www.ghtltd.com</span></a><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>* <</span><a href="http://www.ghtltd.com/"><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>http://www.ghtltd.com</span></a><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'>></span><o:p></o:p></p></div><div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#500050'> </span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#500050'>> Hey eQuest users,<br>> I have a new challanging requirement in the appendix G section G3.1.2.8,<br>> its required the supply air-to room air cooling temperature difference is<br>> 20 degrees for each HVAC system. Now my question is how can i achieve this<br>> if my baseline is system 8 and the chilled water leaving temperature is<br>> specified 44 F with return delta t=12,at the same time that in my design<br>> the indoor thermostat temp=71.6 F , and the supply cooling temp should be<br>> 51.6F, here when i set this value i got an error in eQuest stating that"<br>> the cooling coil leaving temperatures must be at least 6 F higher than<br>> entering water temp" and when i set the cooling supply air temp</span><o:p></o:p></p></div><div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span style='font-size:10.0pt;font-family:"Arial","sans-serif";color:#500050'> </span><o:p></o:p></p></div><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'> <o:p></o:p></p></div></div></div></div></div><p class=MsoNormal><br><br><br>-- <o:p></o:p></p><div><p><span style='color:#3333FF'>Hala Jaber.</span><o:p></o:p></p><p><span style='color:#3333FF'>Sustainable Design Engineer.; LEED AP BD +C .</span><o:p></o:p></p><p><span style='color:#3333FF'>+962-79-7570197</span><o:p></o:p></p><p><span style='color:#3333FF'>email: </span><a href="mailto:halajaber82@gmail.com"><span style='color:#3333FF'>halajaber82@gmail.com</span></a><o:p></o:p></p></div></div></div></div></body></html>