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<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>I have gone through the steps
outlined in previous discussions to implement a DOAU using a dummy zone. My
question is whether it is possible to implement DCV based on the sum of zone
occupancy in order to vary the outdoor air flow rate?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>I have tried multiple scenarios
including having the DCV sensors at the room system and at the DOA system. I am
using a variable speed fan. Is this scenario possible and which parameters do I
need to modify?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>Thanks<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>"DOAU" =
SYSTEM <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
TYPE =
PVVT<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
HEAT-SOURCE = HOT-WATER<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
MAX-SUPPLY-T = 65<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
HEAT-SET-T = 65<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
MIN-OUTSIDE-AIR = 1<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
RECOVER-EXHAUST = YES<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
HW-LOOP = "Hot Water
<st1:place w:st="on">Loop</st1:place>"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
CONTROL-ZONE = "_DUMMY-ZONE_"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'> ERV-RECOVER-TYPE =
ENTHALPY-WHEEL<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
ERV-RUN-CTRL = WHEN-MIN-OA<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'> ..<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>"_DUMMY-ZONE_" =
ZONE <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
TYPE =
CONDITIONED<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'> OUTSIDE-AIR-FLOW =
5400<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=CourierPS><span lang=EN-GB
style='font-size:10.0pt;font-family:CourierPS'>
SPACE =
"_DUMMY-SPACE_"<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'> ..<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span lang=EN-GB style='font-size:
10.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><b><font size=1 face=Arial><span lang=EN-GB
style='font-size:8.0pt;font-family:Arial;font-weight:bold'>Alan Jackson,
LEED® A.P. <o:p></o:p></span></font></b></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Senior Mechanical Engineer<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Buro Happold Consulting Engineers, PC<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>100 Broadway <o:p></o:p></span></font></p>
<p class=MsoNormal><st1:place w:st="on"><st1:City w:st="on"><font size=1
face=Arial><span lang=EN-GB style='font-size:8.0pt;font-family:Arial'>New
York</span></font></st1:City><font size=1 face=Arial><span lang=EN-GB
style='font-size:8.0pt;font-family:Arial'>, <st1:State w:st="on">NY</st1:State>
<st1:PostalCode w:st="on">10005</st1:PostalCode></span></font></st1:place><font
size=1 face=Arial><span lang=EN-GB style='font-size:8.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><st1:country-region w:st="on"><st1:place w:st="on"><font
size=1 face=Arial><span lang=EN-GB style='font-size:8.0pt;font-family:Arial'>USA</span></font></st1:place></st1:country-region><font
size=1 face=Arial><span lang=EN-GB style='font-size:8.0pt;font-family:Arial'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Tel: (+1) 212 334 2025<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Direct: (+1) 212 616 0267<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Fax: (+1) 212 334 5528<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'>Email: <a
href="mailto:alan.jackson@burohappold.com"
title="mailto:alan.jackson@burohappold.com">alan.jackson@burohappold.com</a><br>
<a href="http://www.burohappold.com/" title="http://www.burohappold.com/">www.burohappold.com</a><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=1 face=Arial><span lang=EN-GB style='font-size:
8.0pt;font-family:Arial'><o:p> </o:p></span></font></p>
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