The air system used for this zone equipment, if applicable.

Namespace: Autodesk.Revit.DB.Mechanical
Assembly: RevitAPI (in RevitAPI.dll) Version: 22.0.0.0 (22.1.0.0)
Since: 2020.1

Syntax

C#
`public ElementId AirSystemId { get; set; }`

Visual Basic
`Public Property AirSystemId As ElementId Get Set`

Visual C++
`public: property ElementId^ AirSystemId { ElementId^ get (); void set (ElementId^ value); }`

Exceptions

Exception	Condition
Autodesk.Revit.Exceptions ArgumentNullException	When setting this property: A non-optional argument was null