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<p class=MsoNormal><span style='color:#1F497D'>Peter,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>If you replace with following to
the Cooling EIR calculation in the middle of the page, the values will be
correct for the AC EIR calculations.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Cooling EIR = ((1/EER)-0.012167)/((1/3.413)+0.012167)
(note the additional parenthesis in the numerator)<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>
EIR = ((1/11)-0.012167)/((1/3.413)+0.012167) = 0.258 <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>This equation is comparable to
the EIR equation at the top of the page.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>However, when given a SEER, I
find a difference in the results.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>EER = SEER x 0.778 + 1.4 = 13 x
0.778 + 1.4 = 11.514<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>EIR = ((1/11.514) – 0.012167)/((1/3.413)+0.012167)
= 0.2447, not your Wizard value of 0.2507<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal style='text-autospace:none'><b><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'>Brett Fero, P.E., LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'>RobsonWoese Inc.<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'>Salina Meadows Office Park<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'>301 Plainfield Road, Suite 180<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'>Syracuse, NY 13212<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'>Phone: 315-445-2650<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'>Fax: 315-445-0958<o:p></o:p></span></p>
<p class=MsoNormal style='text-autospace:none'><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:#1F497D'><a
href="mailto:bfero@robsonwoese.com"><span style='color:blue'>bfero@robsonwoese.com</span></a><o:p></o:p></span></p>
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<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Peter
Hillermann<br>
<b>Sent:</b> Thursday, June 17, 2010 11:22 AM<br>
<b>To:</b> 'Josh Greenfield'; equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] eQuest: SEER to EIR??<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='color:#1F497D'>I have the same question as
Josh. My value from the wizard is coming out different from the equation. Even
when calculating EER to EIR.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Example:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Wizard = EER 11 = 0.258<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Calculation = EER 11 =0 .31
(which actually is the default value in my model when I fire it up)<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Wizard = EER 12.5 =0.2223<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Calculation = EER 12.5 = 0.27<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Wizard = SEER 13 = 0.2507<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Calculation = SEER 13 = 0.296<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>However in my calculations there
is a 0.05 difference from wizard to calculation. (Obviously missing something)
Should I just use the wizard values and be done with it? <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>Thanks,<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span lang=DE style='font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'>PETER HILLERMANN<o:p></o:p></span></b></p>
<p class=MsoNormal><span lang=DE style='font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=DE style='font-size:8.0pt;font-family:"ITC Avant Garde Gothic Demi";
color:#1F497D;letter-spacing:1.0pt'><a
href="mailto:peterh@westallarchitects.com">peterh@westallarchitects.com</a><o:p></o:p></span></p>
<p class=MsoNormal><span lang=DE style='font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal style='line-height:75%'><b><span lang=DE style='font-size:
14.0pt;line-height:75%;font-family:"ITC Avant Garde Std Md";color:#1F497D;
letter-spacing:1.0pt'>westall</span></b><span lang=DE style='font-size:14.0pt;
line-height:75%;font-family:"Times New Roman","serif";color:#1F497D;letter-spacing:
1.0pt'><o:p></o:p></span></p>
<p class=MsoNormal style='margin-left:4.0pt;line-height:75%'><b><span
style='font-size:14.0pt;line-height:75%;font-family:"ITC Avant Garde Std Md";
color:#1F497D;letter-spacing:1.0pt'>architects</span></b><span
style='font-size:14.0pt;line-height:75%;color:#1F497D;letter-spacing:1.0pt'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'>3404 pierce drive<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'>chamblee, georgia 30341<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'>o 770.458.4113<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'>f 770.458.5352<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'>c 678.898.2936<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"ITC Avant Garde Std Bk";
color:#1F497D;letter-spacing:1.0pt'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"ITC Avant Garde Gothic Demi";
color:#1F497D;letter-spacing:1.0pt'>westallarchitects.com</span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#1F497D;
letter-spacing:1.0pt'><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><img border=0 width=160
height=87 id="_x0000_i1029" src="cid:image001.jpg@01CB0E22.285C0FB0"
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src="cid:image002.gif@01CB0E22.285C0FB0" alt=USGBC-Logo><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<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"'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Josh
Greenfield<br>
<b>Sent:</b> Tuesday, June 15, 2010 4:02 PM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] eQuest: SEER to EIR??<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Sorry to be beating a dead horse…<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>the attached document has been floating around the boards
for awhile in regards to how an entered EER value in the Wizard gets converted
to the Cooling-EIR value in the Detailed Edit mode, and after doing a few EER
value tests, I can confirm it works…<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I’ve also found in various emails the conversions on
the heat pump heating side of COP and HSPF to Heating-EIR, and those work too
after testing various values in the Wizard…<o:p></o:p></p>
<p class=MsoNormal>Heating EIR = (1/(COP*3.413)-0.012167)/((1/3.413)-0.012167)<o:p></o:p></p>
<p class=MsoNormal>Heating EIR =
(1/((HSPF*0.28+1.13)*3.413)-0.012167)/((1/3.413)-0.012167)<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>But I just can’t get the SEER to EER conversion from
the document (EER = SEER x 0.778 + 1.4) to work. I’m assuming that
the converted SEER to EER value then gets put into the working equation from
that PDF of Cooling-EIR = ((1/EER)-0.12167)/((1/3.413)+0.012167)).<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>As an example…if you put in a 13 SEER into the Wizard,
a 0.2507 Cooling-EIR value is calculated in the Detailed Edit mode, but if you
use the SEER to EER (13 SEER would equal a 11.514 EER) and then the EER to EIR
equations, it says EIR should be 0.2447.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Any help/suggestions would be great…hopefully
it’s just a math error on my part.<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:"Arial","sans-serif"'><br>
<b>Josh Greenfield</b>, </span><span style='font-size:7.5pt;font-family:"Arial","sans-serif"'>PE,
REP, LEED AP</span><span style='font-size:10.0pt;font-family:"Arial","sans-serif"'><br>
Energy Services Manager<br>
Associate Vice President<br>
312.242.6392 Direct<br>
</span><span style='font-size:10.0pt;color:#4F6228'><a
href="blocked::mailto:jgreenfield@primerachicago.com"
title="blocked::mailto:jgreenfield@primerachicago.com"><span style='font-family:
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src="cid:image003.jpg@01CB0E22.285C0FB0" alt=Logo-CMYK-Resume><br>
Primera Engineers, Ltd.<br>
100 S. Wacker Drive, Suite 700<br>
Chicago, IL 60606<br>
312.606.0910 Main<br>
312.606.0415 Fax<br>
</span><span style='font-size:10.0pt;color:#4F6228'><a
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