Creates a new type of a mechanical equipment set and adds it to the document. 
Namespace: Autodesk.Revit.DB.Mechanical
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since:  2019 
Syntax
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Parameters
- document
- Type: Autodesk.Revit.DBDocument
 The document where the new type is created.
- name
- Type: SystemString
 The name of new type.
Return Value
The newly created mechanical equipment set type.Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.ExceptionsArgumentException | name cannot include prohibited characters, such as "{, }, [, ], |, ;, less-than sign, greater-than sign, ?, `, ~". -or- name is an empty string. -or- The given name is not unique | 
| Autodesk.Revit.ExceptionsArgumentNullException | A non-optional argument was null | 
| Autodesk.Revit.ExceptionsInvalidOperationException | The document is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). | 
| Autodesk.Revit.ExceptionsModificationForbiddenException | The document is in failure mode: an operation has failed, and Revit requires the user to either cancel the operation or fix the problem (usually by deleting certain elements). -or- The document is being loaded, or is in the midst of another sensitive process. | 
| Autodesk.Revit.ExceptionsModificationOutsideTransactionException | The document has no open transaction. |