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<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'>And I saw the
cooling electrical input power in the third screen is green (default value). May
be you should change it according to ASHRAE 90.1 minimum equipment efficiency.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;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 0cm 0cm 0cm'>
<p class=MsoNormal align=left style='text-align:left'><b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>
equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Bruce
Easterbrook<br>
<b>Sent:</b> 2010</span><span lang=ZH-CN style='font-size:10.0pt;font-family:
SimSun;color:windowtext'>Äê</span><span style='font-size:10.0pt;
font-family:"Tahoma","sans-serif";color:windowtext'>12</span><span lang=ZH-CN
style='font-size:10.0pt;font-family:SimSun;color:windowtext'>ÔÂ</span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>13</span><span
lang=ZH-CN style='font-size:10.0pt;font-family:SimSun;color:windowtext'>ÈÕ</span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif";color:windowtext'>
23:41<br>
<b>To:</b> zhiren zhou<br>
<b>Cc:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> Re: [Equest-users] Does PTAC consumes less energy than
FCU+DOAs?<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal align=left style='text-align:left'><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:13.5pt'>On your bottom screen adjust
the throttling range, try 2 and 4. .3 is too tight, the system will fight
itself.<br>
Bruce Easterbrook<br>
Abode Engineering<br>
</span><br>
On 13/12/2010 08:52 AM, zhiren zhou wrote: <o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt'>Dear all</span><o:p></o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt'>
Now I¡¯m doing a LEED-CS energy simulation, part of the project is residential
type and I use system 1(PTAC), and the proposed is FCU+DOAs. The results shows
that the baseline is consume less energy. </span><o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'><span style='font-size:12.0pt'>So
the question is: Does PTAC consumes less energy than FCU+DOAs?</span><o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'><span style='font-size:12.0pt'>Of
course I¡¯m not sure whether I has modeled the PTAC correctly. So I put some
important images below. The cooling source is DX and the heat source is hot
water loop. The supply fan is 0.0003Kw/CFM, and I keep the EIR default of 0.438
which is a low efficiency.</span><o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'>Could anyone tell me the cause or
the mistake I¡¯ve made? Thanks a lot!<o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'> <o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'>
Yours Zhiren Zhou<o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'> <o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'><img width=859 height=618
id="_x56fe__x7247__x0020_4" src="cid:image001.png@01CB9B6F.10DE4B70"><o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'> <o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'><img width=726 height=532
id="_x56fe__x7247__x0020_2" src="cid:image002.png@01CB9B6F.10DE4B70"><o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'> <o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'> <o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'><img width=726 height=535
id="_x56fe__x7247__x0020_6" src="cid:image003.png@01CB9B6F.10DE4B70"><o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'> <o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'><img width=732 height=532
id="_x56fe__x7247__x0020_3" src="cid:image004.png@01CB9B6F.10DE4B70"><o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'> <o:p></o:p></p>
<p class=MsoNormal style='text-indent:21.0pt'><img width=720 height=535
id="_x56fe__x7247__x0020_5" src="cid:image005.png@01CB9B6F.10DE4B70"><o:p></o:p></p>
<p class=MsoNormal> <o:p></o:p></p>
<pre><o:p> </o:p></pre><pre><o:p> </o:p></pre><pre>_______________________________________________<o:p></o:p></pre><pre>Equest-users mailing list<o:p></o:p></pre><pre><a
href="http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org">http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org</a><o:p></o:p></pre><pre>To unsubscribe from this mailing list send a blank message to <a
href="mailto:EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG">EQUEST-USERS-UNSUBSCRIBE@ONEBUILDING.ORG</a><o:p></o:p></pre></div>
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