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<p class=MsoNormal>Sim List,<o:p></o:p></p>
<p class=MsoNormal> ASHRAE
system 3 is, Packaged Single Zone Air Conditioner (PSZ-AC). The description of PSZ-AC
says, “Packaged rooftop air conditioner”. I assume that this means
a single unit serving multiple zones. This doesn’t seem to make sense
since the name contains the phrase ‘single zone’.<o:p></o:p></p>
<p class=MsoNormal> I
have a building with baseline system 3, PSZ-AC and I’m not sure how to
apply this system. The proposed building has a variety of systems. Should I
have a system per zone or a single unit for the building?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks<o:p></o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><span style='font-size:12.0pt;
font-family:"Times New Roman","serif"'><o:p> </o:p></span></p>
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mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><a href="http://www.pae-engineers.com/"><span
style='font-size:12.0pt;font-family:"Times New Roman","serif";color:blue;
text-decoration:none'><img border=0 width=62 height=62 id="_x0000_i1027"
src="cid:image002.jpg@01C90E9B.1A388040"
alt="http://www.pae-engineers.com/images/PAElogobug.gif"></span></a><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><b><span style='font-size:10.0pt;font-family:
"Verdana","sans-serif";color:black'>Eric Youngson </span></b><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</td>
<td rowspan=2 style='padding:1.5pt 1.5pt 1.5pt 1.5pt'>
<p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:2.25pt;
mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><span style='font-size:12.0pt;font-family:
"Times New Roman","serif"'><img border=0 width=1 height=55 id="_x0000_i1026"
src="cid:image004.png@01C90E9B.1A388040"
alt="http://www.pae-engineers.com/images/spc1blk.gif"></span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><b><span style='font-size:8.0pt;font-family:
"Verdana","sans-serif";color:#CC0000'>PAE Consulting Engineers, Inc.</span></b><span
style='font-size:8.0pt;font-family:"Verdana","sans-serif"'> </span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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<p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:2.25pt;
mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><span style='font-size:12.0pt;font-family:
"Times New Roman","serif"'><img border=0 width=1 height=55 id="_x0000_i1025"
src="cid:image004.png@01C90E9B.1A388040"
alt="http://www.pae-engineers.com/images/spc1blk.gif"></span><span
style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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<p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:2.25pt;
mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><span style='font-size:8.0pt;font-family:
"Verdana","sans-serif";color:black'>503.226.2921 Main<br>
503.542.0567 Direct<br>
503.226.2930 Fax<br>
ericy@pae-engineers.com </span><span style='font-size:12.0pt;font-family:
"Times New Roman","serif"'><o:p></o:p></span></p>
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<p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:2.25pt;
mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><span style='font-size:9.0pt;font-family:
"Verdana","sans-serif";color:black'>Mechanical </span><span style='font-size:
12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
</td>
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<p class=MsoNormal style='mso-element:frame;mso-element-frame-hspace:2.25pt;
mso-element-wrap:around;mso-element-anchor-vertical:paragraph;mso-element-anchor-horizontal:
column;mso-height-rule:exactly'><span style='font-size:8.0pt;font-family:
"Verdana","sans-serif";color:black'>808 SW Third Avenue - Suite 300<br>
Portland, OR 97204-2426<br>
www.pae-engineers.com</span><span style='font-size:8.0pt;font-family:"Verdana","sans-serif"'>
</span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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mso-element-frame-hspace:2.25pt;mso-element-wrap:around;mso-element-anchor-vertical:
paragraph;mso-element-anchor-horizontal:column;mso-height-rule:exactly'><span
style='font-size:8.0pt;font-family:"Verdana","sans-serif";color:#CC0000;
letter-spacing:6.0pt'>inspire interpret integrate</span><span
style='font-size:8.0pt;font-family:"Verdana","sans-serif";letter-spacing:
6.0pt'> </span><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p></o:p></span></p>
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