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<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>
<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"'><img border=0
width=144 height=29 id="Picture_x0020_1"
src="cid:image001.jpg@01CB0C9A.A90009C0" 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"
title="blocked::http://www.primerachicago.com/"><span style='font-family:"Arial","sans-serif";
color:#4F6228'>http://www.primerachicago.com</span></a></span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif"'><o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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