Hello,

I am trying to model a four story auditorium building. It has 2 auditorium,
one at ground floor and second on second floor. I have created separate
shell for each floor. Here is the methodology i am following to model this:

Ground Floor: Multilevel space (atrium) in DD wizard 2 (Conditioned height
as per design)
First Floor: Multilevel space +Open to below in DD wizard 2
Second Floor: Multilevel space (atrium) in DD wizard 2 ( can't find
"conditioned height in the tab?? no idea)
Third Floor: Multilevel space +Open to below in DD wizard 2

But i get an error stating that ML space at second floor was referenced on
line "xxxxxx" is not defined. This error appears only when i try to make
chnages at multilevel space.

another option i tried is to define multilevel space at ground and second
floor and define "open to below" at first and third floor, the simulation
runs fine but there is no change in "floor area" which i am expecting as
there is no floor at first and third floor in auditorium zone.

I would appreciate any guidance on how to model this effectively.

[image: Inline image 2]

Tnaks in advance,

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Javed Iqbal, LEED AP, CEA
Sr. Energy Analyst