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[EnergyPlus_Support] azimuth mismatch for horizontal surfaces

Hello,

I received the following warning:

    ** Warning ** GetSurfaceData: InterZone Surface Azimuths do not 
match as expected.
    **   ~~~   **   Azimuth=270.0, Tilt=180.0, in 
Surface=0J8KFINJV0B9CVEUNR2CDF, Zone=PLENUM
    **   ~~~   **   Azimuth=180.0, Tilt=0.0, in 
Surface=14KF$QRCJ1HQWVE7M35$CE, Zone=BANKING FLOOR
    **   ~~~   ** ..surface class of base surface=Wall

The surfaces in question are defined as follows:

   BuildingSurface:Detailed,
     0j8kFINjv0b9cVEuNR2cdf,  !- Name
     Wall,                    !- Surface Type
     04 | CStone 04 (0.050),  !- Construction Name
     Plenum,                  !- Zone Name
     Surface,                 !- Outside Boundary Condition
     14kF$qRcj1hQwve7M35$Ce,  !- Outside Boundary Condition Object
     NoSun,                   !- Sun Exposure
     NoWind,                  !- Wind Exposure
     Autocalculate,           !- View Factor to Ground
     Autocalculate,           !- Number of Vertices
     20.149,20.898,4.05,  !- X,Y,Z ==> Vertex 1 {m}
     23.894,19.962,4.05,  !- X,Y,Z ==> Vertex 2 {m}
     23.894,8.085,4.05,  !- X,Y,Z ==> Vertex 3 {m}
     20.149,8.085,4.05;  !- X,Y,Z ==> Vertex 4 {m}

   BuildingSurface:Detailed,
     14kF$qRcj1hQwve7M35$Ce,  !- Name
     Ceiling,                 !- Surface Type
     04 | CStone 04 (0.050),  !- Construction Name
     Banking Floor,           !- Zone Name
     Surface,                 !- Outside Boundary Condition
     0j8kFINjv0b9cVEuNR2cdf,  !- Outside Boundary Condition Object
     NoSun,                   !- Sun Exposure
     NoWind,                  !- Wind Exposure
     Autocalculate,           !- View Factor to Ground
     Autocalculate,           !- Number of Vertices
     20.149,20.898,4,  !- X,Y,Z ==> Vertex 1 {m}
     20.149,8.085,4,  !- X,Y,Z ==> Vertex 2 {m}
     23.894,8.085,4,  !- X,Y,Z ==> Vertex 3 {m}
     23.894,19.962,4;  !- X,Y,Z ==> Vertex 4 {m}

I'm not sure how EnergyPlus handles the "azimuth" for horizontal 
surfaces like these, so I don't know if I need to worry about this 
warning. In either case I'd like to know how to fix it, though.

Thank you,
Cody Rose


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