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<p class=MsoNormal>I’ve got an eQUEST model where my designed building has
PIUs. I was getting a number of hours of unmet loads till I turned on Night
cycle control. With PIUs you can set it to Zone fans only – which makes
sense. The loads were met and the energy usage went up marginally. <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The base building is a standard VAV system (system 7). Since
the VAV system doesn’t have zone fans, I have to set it to cycle on any.
The energy use goes up considerably in this case. Is this normal? Should I be
meeting the loads in another way?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Also – is it acceptable to have night cycling for a
LEED/Appendix G submittal? The building is just not meeting its heating needs
if I don’t do this. It’s a historic building with a lot of
perimeter glass (single pane) and so the perimeter zones get pretty cold at
night (one of the reasons we have PIUs) <o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Am I correct in taking credit for this?<o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
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