The preheat coil type. Note this property change would reset the preheat water loop.

Namespace: Autodesk.Revit.DB.Mechanical
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 2020.1

Syntax

C#
`public AirHeatingCoilType PreheatCoilType { get; set; }`

Visual Basic
`Public Property PreheatCoilType As AirHeatingCoilType Get Set`

Visual C++
`public: property AirHeatingCoilType PreheatCoilType { AirHeatingCoilType get (); void set (AirHeatingCoilType value); }`

Exceptions

Exception	Condition
Autodesk.Revit.ExceptionsArgumentOutOfRangeException	When setting this property: A value passed for an enumeration argument is not a member of that enumeration