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<p class=MsoNormal>I’m modeling the renovation of a religious facility
for the purpose of complying with EAc1. Half of the building is housing,
half is classroom-type space. The current occupants are extremely accommodating
to varying indoor air temperatures, mostly in the housing portion of the
building.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>If I read ASHRAE 55-2004 Section 2.3 correctly, you ONLY
have to comply with requirements of the standard if it is an indoor space
designed for human occupancy for periods of not less than 15 minutes.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Therefore, in your opinion, if I was trying to comply with
both EAc1 and the ASHRAE 55-2004 credit, would I be wrong if I set the heating
and cooling setpoints for the corridors, storage areas, bathrooms, lobbies, etc
to something like 55 degrees and 85 degrees respectively? Can anyone see
anything wrong with this?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The main reason for asking is that the Owner wants to
maintain the existing 2-pipe system. If I was modeling this with standard
72/75 setpoint temps, I would have WAY too many unmet load hours.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>And a follow up question is this: ASHRAE 55 lists the
acceptable indoor air conditions for OCCUPIED spaces, and in general, depending
on indoor humidity levels, the acceptable temperatures range from 68-82
degrees.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Is there ANYWHERE in 90.1-2004 / Appendix G where it says
you HAVE to comply with ASHRAE 55?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>If we were attempting the ASHRAE 55 credit (EQc7.1),
obviously we would have to, but if we didn’t, and were only shooting for
EAc1, what prevents me from setting classrooms to 55 degrees heating and 85
degrees cooling? I understand that this is clearly not an ideal thermal
environment, but if the Owner of the building WANTS to run a 2-pipe system to
these temperatures, does LEED-NC v2.2 or 90.1 prevent this?<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>Thanks in advance!<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><b><span style='font-family:"Arial","sans-serif";color:teal'>GHT
Limited<br>
</span></b><b><span style='font-family:"Arial","sans-serif"'><ns0:PersonName><span
style='color:black'>James Hansen</span></ns0:PersonName></span></b><b><span
style='color:black'>, PE, LEED AP<o:p></o:p></span></b></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
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