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Lee-<br>
The EIR modefier curve acts as a multiplier on the COOLING-EIR
value, which is the the reciprocal of the COP. Therefore, if you
multiply the your curve values times the COOLING-EIR and take the
inverse, you will see that the efficiency is actually decreasing,
approaching COP=1.0 at low temperatures. Keep in mind that this
curve is not the only EIR modifier curve, there is also the PLR
curve...<br>
<br>
-David<br>
<br>
<div class="moz-cite-prefix">On 8/22/2012 9:18 AM, Lee Chorney
wrote:<br>
</div>
<blockquote
cite="mid:CAGHHzOCK69+w9JYbzkEGn7Bfhfo=rov_LrDQiH0xyo5_OqTZrQ@mail.gmail.com"
type="cite">Hi Everybody,<br>
<br>
Does anyone understand the heating EIR curves used for PTACS in
Equest? It is the "DX-Heat-EIR-fEDB&OAT" curve. I calculated
the curve using excel (see attached spreadsheet) and found as the
outside air gets colder the efficiency of the heating curve
increases. Does that make sense to anyone?<br>
<br>
Thanks in advance,<br>
<br>
Lee <br>
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