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SystemCalculationLevel

Enumeration
Description:
Enumerated type listing flags that can toggle on or off certain calculations related to MEP systems.
Syntax
SystemCalculationLevel Enumeration Members:
Name Description
0 System calculation is off
1 System calculation is only for flow
2 This mode is obsoleted in Revit 2017.
4 This mode is reserved for limiting the system propagation and other performance-boosting options. Note that the system-related functionalities might be traded off for faster layout capability in large system when this mode is on. Be careful that this mode is NOT included in the "All" mode.
-1 System calculation is on for everything (with every bit being 1)