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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Vacancy sensors are a great idea and I
would like to hear more about any actual studies that quantify typical
diversity reductions. When performing energy audits, we regularly
encounter people who prefer low ambient light. Standard occupancy sensors
would be a real drag for these folks!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Here’s a great source of lighting
study white papers, including a good analysis of the differences between ASHRAE
90.1-2007 and IECC 2006 w 07 Supplement: <a
href="http://www.aboutlightingcontrols.org/education/index.shtml">http://www.aboutlightingcontrols.org/education/index.shtml</a>.
<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>For <st1:State w:st="on"><st1:place w:st="on">Massachusetts</st1:place></st1:State>
readers, please be aware that the 7<sup>th</sup> edition of 780 CMR that was
released in September 2008 was superseded by a more restrictive code in October
2008 that uses the previously mentioned standards. This was a recent surprise
to us as well as others I’ve spoken with who need to be aware of code
minutiae. Here’s the link to the new code: <a
href="http://www.mass.gov/Eeops/docs/dps/inf/780_cmr_13.00_energy_efficiency.pdf">http://www.mass.gov/Eeops/docs/dps/inf/780_cmr_13.00_energy_efficiency.pdf</a>
(bonus - the wonky formatting makes it an interesting read).
Interestingly, the basic requirements of LEED EA Pr 1 appear to be required to
get one’s Certificate of Occupancy (MA specific addendum to section 104.5).<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Eric<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<div>
<p class=MsoNormal><font size=2 color=navy face="Times New Roman"><span
style='font-size:10.0pt;color:navy'>Ph: (781) 431-1100 ext 12<br>
Fax: (781) 431-1109</span></font><font color=navy><span
style='color:navy'><o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=navy face="Times New Roman"><span
style='font-size:12.0pt;color:navy'> </span></font><o:p></o:p></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
bldg-sim-bounces@lists.onebuilding.org
[mailto:bldg-sim-bounces@lists.onebuilding.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Vishal Garg<br>
<b><span style='font-weight:bold'>Sent:</span></b> Thursday, April 30, 2009
9:59 PM<br>
<b><span style='font-weight:bold'>To:</span></b> Kevin Kyte<br>
<b><span style='font-weight:bold'>Cc:</span></b>
bldg-sim@lists.onebuilding.org; bldg-rate@lists.onebuilding.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [Bldg-sim]
Occupany/Vacancy Sensors for Lighting Power</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>How is it saving more?
Are you assuming that a person will enter the space and will not switch the
light ON?<br>
- Vishal<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>On Thu, Apr 30, 2009 at 7:46 PM, Kevin Kyte <<a
href="mailto:kkyte@robsonwoese.com">kkyte@robsonwoese.com</a>> wrote:<o:p></o:p></span></font></p>
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<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Is anyone
aware of a CIR or received approval for using vacancy lighting sensors on a
LEED project. Meaning the sensor works like an occupancy sensor but does
not turn lights on until the user flips the switch. Then the lights
automatically turn off after sensing no occupancy for a time. If so, what
is the approved percentage deduction off of light power density. I was
assuming an additional 10% over regular occupancy sensors but have been told
the savings could really be a lot higher than that. Thanks.<o:p></o:p></span></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'> <o:p></o:p></span></font></p>
<p><font size=3 face="Times New Roman"><span style='font-size:12.0pt'>Kevin<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
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