The Compliance Manager issued by the CEC has strict requirements on the number of surfaces that must be input into a Zone. Without a minimum of 3 surfaces for Nonresidential or 6 surfaces for Residential, the Compliance Manager will not produce stable results. Also, each Zone will need to have a floor and ceiling/roof to run properly.
Many times the project may not have that many surfaces. One approach you can take is to divide a wall into two pieces and meet the criteria. Also, interior surfaces next to another Zone count towards the six surfaces on both the Zone it is in as well as the Zone it is adjacent to.
When inputting the surface areas, do not try to trick the software by inputting one square foot surfaces. This will only result in the simulation failing to run. It is imperative that you input realistic surface sizes for the Zone being modeled.
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