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<p class=MsoNormal>Hello all,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>ASHRAE Appendix G requires an air side economizer with a
high limit shut off of 75 F for some climate zones base cases. Typically on
projects I have specified these type of economizers with a 65 F high limit shut
off and to have the compressor locked out during the economizer cycle. Does
ASHRAE require the compressors to be locked out with a 75 F high limit shutoff
or can I have the compressor running during the economizer cycle? I have
not found anywhere in 90.1 that requires the compressor to be locked out, but
am I overlooking it?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks for all your help!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><img width=119 height=37 id="Picture_x0020_1"
src="cid:image003.jpg@01C88E81.07C9F320"><o:p></o:p></p>
<p class=MsoNormal style='margin-top:6.0pt'><b><span style='font-size:14.0pt;
font-family:"Avenir 55";color:#2D4D5E'>Steve Tobin<o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:8.0pt;font-family:"Avenir 55";
color:#CC9900'>PROJECT ENGINEER<o:p></o:p></span></p>
<p class=MsoNormal style='margin-top:12.0pt'><span style='font-family:"Avenir 55";
color:#2D4D5E'>25501 west valley parkway</span><span style='font-size:10.0pt;
font-family:"Avenir 55";color:#2D4D5E'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Avenir 55";color:#2D4D5E'>olathe
ks 66061<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Avenir 55";color:#2D4D5E'>direct
913 344.0061<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-family:"Avenir 55";color:#2D4D5E'>fax 913
345.0617<o:p></o:p></span></p>
<p class=MsoNormal><o:p> </o:p></p>
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