[Equest-users] [Equest-User] skylight and daylight control

[Rob Rosen]

I had a similar problem with a skylight in an attic. In my case, when I
changed the attic space type to plenum, it allowed me to place a daylight
sensor in the space below the plenum when the skylight was located in the
plenum.
 
Hope this helps,
 
Rob Rosen
Senior Energy Analyst
Taitem Engineering
109 S. Albany St.
Ithaca, NY 14850
Phone: 607-277-1118 ext 110
Fax: 607-277-2119

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From: YinRic [mailto:cesseric at hotmail.com] 
Sent: Tuesday, August 04, 2009 5:41 AM
To: equest-users at lists.onebuilding.org
Subject: [Equest-users] [Equest-User] skylight and daylight control


Hi all.
 
We have a large workshop (around 10,000 m2) to go for LEED. An attic is
built on top of the roof to introduce daylight into the space and save
energy (according to my suggestion). Right below the attic is manufacturing
zone, around which is docking and undocking zones and meeting rooms. The
surrounding zones makes the huge manufacturing zone "interior zone" although
daylight from both the attic and windows can access to this zone. The
problem is:
 
1. I am not sure if the attic, which is built as "second floor" but "open to
below" could show any contribution to lighting power saving in Equest.
Actually, with daylight sensors, this attic does save energy when daylight
is abundant. Does "open to below" mean "100% transparent" in Equest?
2. I found it impossible to put a daylight sensor in the manufacturing zone,
where the attic is intended for, just because in my model, it is an
"interior zone". My zoning was according to diffrent functions. There is
even no interior partition between the manufacturing zone and docking zone.
Doesn't Equest consider daylight from above, even if it is actually an
interior zone?
 
The owner has spent huge lots of money to build this attic. I do hope it
could show positive performance in Equest instead of nothing. Any comments
are welcome.
 
Rick, PE, LEED AP
 


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