P

AirSystemData.PreheatHotWaterLoopId

Description:
The water loop element id for the hot-water preheat coil.

public ElementId PreheatHotWaterLoopId { get; set; }

Public Property PreheatHotWaterLoopId As ElementId
Get
Set

public:
property ElementId^ PreheatHotWaterLoopId {
	ElementId^ get ();
	void set (ElementId^ value);
}

Autodesk.Revit.Exceptions.ArgumentNullException

When setting this property: A non-optional argument was null