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<p class=MsoNormal>My building has 6 floors of nearly identical residential
units, 203 units in all. Each unit is served by a split system air-source heat
pump. Would it be correct to group all the units on, say, the 3<sup>rd</sup>
floor south side into a single zone, then specify the HVAC system as the sum of
the individual unit capacities and flow rates, keeping the efficiency the same
as the individual unit efficiency?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>My hope is to greatly simplify the model by grouping south
side units and north side units on each floor, but I need to maintain accuracy.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thank you all in advance,<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Ben Pressman, EIT, BESA<o:p></o:p></p>
<p class=MsoNormal><i><span style='font-size:9.0pt;font-family:"Corbel","sans-serif"'>Project
Engineer<o:p></o:p></span></i></p>
<p class=MsoNormal><i><span style='font-size:9.0pt;font-family:"Corbel","sans-serif"'><o:p> </o:p></span></i></p>
<p class=MsoNormal>Practical Energy Solutions<o:p></o:p></p>
<p class=MsoNormal>101 E. Evans Street, Suite 2<o:p></o:p></p>
<p class=MsoNormal>West Chester, PA 19380<o:p></o:p></p>
<p class=MsoNormal>ph: 610.430.1382 x304<o:p></o:p></p>
<p class=MsoNormal>fax: 610.430.1375<o:p></o:p></p>
<p class=MsoNormal>cell: 610.733.9518<o:p></o:p></p>
<p class=MsoNormal>web: <u><a href="http://www.practicalenergy.net/"><span
style='color:blue'>http://www.practicalenergy.net</span></a></u><o:p></o:p></p>
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