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Dear Users,

I am encountering the following warning message while modelling AirflowNetwork in EnergyPlus:

"* Warning * GetAirflowNetworkInput: SurfaceAverageCalculation is entered for field = Wind Pressure Coefficient Type, but no roof surface is defined using an AirflowNetwork:MultiZone:Surface object. * ~~~ * Reconsider if this is your modeling intent. Simulation continues. * Warning * GetAirflowNetworkInput: SurfaceAverageCalculation is entered for field = Wind Pressure Coefficient Type. * ~~~ * The AirflowNetwork model provides wind pressure coefficients for 4 vertical exterior orientations and 1 horizontal roof. * ~~~ * There are only 0 exterior surface orientations defined in this input file using AirflowNetwork:MultiZone:Surface objects. * ~~~ * Reconsider if this is your modeling intent. Simulation continues.

I have clearly defined all the exterior surfaces (Walls and Roof). I can however, see the wind pressure coefficients that are generated in the output. Could you please shed some light on it.

Many thanks and kind regards,

Sriraj

Dear Users,

I am encountering the following warning message while modelling AirflowNetwork AirflowNetwork in EnergyPlus:

** Warning * ** GetAirflowNetworkInput: SurfaceAverageCalculation is entered for field = Wind Pressure Coefficient Type, but no roof surface is defined using an AirflowNetwork:MultiZone:Surface object. * object.
** ~~~ * ** Reconsider if this is your modeling intent. Simulation continues. * 
** Warning * ** GetAirflowNetworkInput: SurfaceAverageCalculation is entered for field = Wind Pressure Coefficient Type. * Type.
** ~~~ * ** The AirflowNetwork model provides wind pressure coefficients for 4 vertical exterior orientations and 1 horizontal roof. * roof.
** ~~~ * ** There are only 0 exterior surface orientations defined in this input file using AirflowNetwork:MultiZone:Surface objects. * 
** ~~~ * ** Reconsider if this is your modeling intent. Simulation continues.
continues.