Could anyone else comment on this? I had asked this question a couple of months ago, and through some research and guidance received the answer that:<br><br>The EER does include the fan power, which you would calculate from Table 6.8.1.D and you would calculate this for each system based upon it's auto-sized capacity; thus, you will use a different EER for each system.<br>
<br>An important clause to then look at is G3.1.2.1 which states that equipment efficiencies must be broken down into their component parts, such as the EER into EIR and fan power. One way of doing this is to parse it out using equest, capturing the correct EIR and then plugging that back in with a separate fan power.<br>
<br>To get the fan power you would use Table G3.1.2.9 to get BHP and calculate the fan power from this.<br><br>All of this, though, is according to ASHRAE 2004, I have not been using the 2007 Addendum. I just wanted to see if this is what everyone else has been doing?<br>
<br>Thanks<br><br><b>
Loren Appin</b><br>
<br>
Energy Engineer<br>
<br><b>
Silpa Inc.</b><br><font size="1"><b>
s</b> i m p l e . <b>s</b> c i e n t i f i c . <b>s</b> u s t a i n a b l e<br></font><font size="1">AMERICAS | ASIA<br><a href="http://www.silpainc.com/" target="_blank">www.silpainc.com</a></font><br><br><br><br><div class="gmail_quote">
On Thu, Apr 17, 2008 at 7:26 PM, Michael Rosenberg <<a href="mailto:Michael.Rosenberg@state.or.us" target="_blank">Michael.Rosenberg@state.or.us</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
The EER does include the fan power. The baseline fan power allowance in Appendix G from 90.1 2004 was recognized as being much too high for PTACs and PTHPs. An addendum was issued lowering the value to 0.3 W/cfm. This is captured in the new 2007 version of 90.1 Appendix G.<br>
<br>
Michael Rosenberg<br>
Oregon Department of Energy<br>
625 Marion St. N.E.<br>
Salem, OR 97301-3742<br>
Phone : (503) 373-7809<br>
Fax: (503) 373-7806<br>
<br>
>>> "Xu, Xiaowei" <<a href="mailto:xiaowei.xu@ny.fk.com" target="_blank">xiaowei.xu@ny.fk.com</a>> 4/17/2008 8:10:25 AM >>><br>
<div>Hi,<br>
<br>
I have a quick question about the EER requirement for the PTAC and PTHP<br>
system. In Standard 2004, Table 6.8.1D gives out the minimum requirement<br>
for the PTAC and PTHP system. My question is does this EER include the<br>
fan power or not?<br>
<br>
<br>
<br>
Also for the PTAC and PTHP system, following the Appendix G fan power<br>
energy calculation, the fan power would be about 0.7~0.8W/cfm. However<br>
the manufacture's catalog data usually gives out the value around<br>
0.2~0.3W/cfm, which means the proposed case would get a lot of fan<br>
energy savings. Does this make sense? Thanks a lot.<br>
<br>
<br>
<br>
<br>
<br>
Xiaowei Xu<br>
<br>
Engineer<br>
<br>
FLACK + KURTZ<br>
<br>
475 Fifth Avenue<br>
<br>
New York, NY 10017<br>
<br>
<br>
<br>
</div><a href="http://www.flackandkurtz.com" target="_blank">http://www.flackandkurtz.com</a> <<a href="http://www.flackandkurtz.com/" target="_blank">http://www.flackandkurtz.com/</a>><br>
<div><br>
212.532.9600 Main<br>
<br>
212.951.2662 Direct<br>
<br>
212.689.7489 Fax<br>
<a href="mailto:xiaowei.xu@ny.fk.com" target="_blank">xiaowei.xu@ny.fk.com</a><br>
<br>
Ensuring that today's built environment preserves the natural<br>
environment in which we live.<br>
<br>
This e-mail may contain confidential and/or privileged information. If<br>
you are not the intended recipient (or have received this e-mail in<br>
error) please notify the sender immediately and destroy this e-mail.<br>
Any unauthorized copying, disclosure or distribution of the material in<br>
this email is strictly forbidden.<br>
<br>
<br>
<br>
<br>
</div>_______________________________________________<br>
Bldg-sim mailing list<br>
<a href="http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org" target="_blank">http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org</a><br>
To unsubscribe from this mailing list send a blank message to <a href="mailto:BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG" target="_blank">BLDG-SIM-UNSUBSCRIBE@ONEBUILDING.ORG</a><br>
</blockquote></div><br><br clear="all"><br>-- <br>Loren Appin | <a href="mailto:loren.appin@gmail.com" target="_blank">loren.appin@gmail.com</a>