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<div class=Section1>
<p class=MsoNormal><span style='color:#1F497D'>From the eQUEST help file:<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span
style='font-size:10.0pt;font-family:"Times New Roman","serif"'>COOLING-EIR<o:p></o:p></span></b></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>The Electric
Input Ratio (EIR), or 1/(Coefficient of Performance), for the cooling unit at
ARI rated conditions. The program defines EIR to be the ratio of the electric
energy input to the rated capacity, when both the energy input and rated
capacity are expressed in the same units. This EIR is at ARI rated conditions,
i.e., without correction for different temperature or part load. <o:p></o:p></span></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Note: If
you include fan electric energy consumption in your value of COOLING-EIR, then
you should set SUPPLY-KW/FLOW to zero (and SUPPLY-STATIC, SUPPLY-EFF and
SUPPLY-DELTA-T should be omitted). Otherwise, the supply fan electrical energy
will be double counted. For commercial systems the default value of COOLING-EIR
includes compressor and outdoor fan energy, but not indoor fan energy.
Imbedding the fan energy into the COOLING-EIR is valid only if the fan is
constant volume and INDOOR-FAN-MODE = INTERMITTENT; i.e. the fan cycles on/off
with the compressor. If the fan runs continuously during occupied hours,
or the fan is variable volume, then the fan energy cannot be included in the
COOLING-EIR (or HEATING-EIR). <o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Kelsey Van Tassel</span></b><b><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#000066'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Mechanical Engineer | <a href="mailto:kvantassel@sustaineng.com">kvantassel@sustaineng.com</a></span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:#000066'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>608.836.4488 ext. 20 | Fax: 608.836.4477</span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#000066'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Sustainable Engineering Group</span><span style='font-size:12.0pt;
font-family:"Times New Roman","serif";color:#000066'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>901 Deming Way, Suite 201</span><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Madison, WI 53717<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><a href="http://www.sustaineng.com/">www.sustaineng.com</a><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:black'> </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif";
color:#000066'><o:p></o:p></span></p>
</div>
<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>Peter
Hillermann<br>
<b>Sent:</b> Thursday, June 17, 2010 10:22 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>
</div>
</div>
<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@01CB0E08.35EDB850"
alt=e-signature><img border=0 width=92 height=90 id="Picture_x0020_2"
src="cid:image002.gif@01CB0E08.35EDB850" 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:
"Arial","sans-serif";color:#4F6228'>jgreenfield@primerachicago.com</span></a></span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
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style='font-size:10.0pt;font-family:"Arial","sans-serif"'><img border=0
width=144 height=29 id="Picture_x0020_1"
src="cid:image003.jpg@01CB0E08.35EDB850" 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
href="http://www.primerachicago.com"
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<p class=MsoNormal><o:p> </o:p></p>
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