The center of the Air Terminal doesn't align at (0,0,0): align the Air Terminal Center to the Origin Defining Reference Planes could help to solve the problem.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 25.3.0.0 (25.3.0.0)
Syntax
C#
public static FailureDefinitionId AirTerminalCenterNotAligned { get; }