ÂHi all ,
I'm getting this error :
  ** Severe  ** Construction referenced in Constant Flow Radiant System Surface does not have a source/sink
Surface name= C1-1 Â Construction name = CLNG-1
  **  ~~~  ** Construction needs to be defined with a "Construction:InternalSource" object.
Where can I define the ceiling as a source in the program IDF ?
Thanks in advanceÂ
--Eric Ringold
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