MEPSystemClassification Enumeration

This enumeration is used to classify MEP connectors and systems and drives certain behavior for a particular system type

Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 2015.0.0.0 (2015.0.0.0)
Since: 2012
Since: 2012


public enum MEPSystemClassification
Visual Basic
Public Enumeration MEPSystemClassification
Visual C++
public enum class MEPSystemClassification


Member name Description
UndefinedSystemClassification A system classification not yet defined
SupplyAir A supply air duct system
ReturnAir A return air duct system
ExhaustAir Obsolete classification not used anymore
OtherAir An user classified air duct system
DataCircuit An electrical data circuit
PowerCircuit An electrical circuit
SupplyHydronic A hydronic supply piping system
ReturnHydronic A hydronic return piping system
Telephone An electrical circuit classified as telephone
Security An electrical security circuit
FireAlarm An electrical fire alarm circuit
NurseCall An electrical circuit classified as nurse call
Controls An electrical circuit classified as controls
Communication An electrical circuit classified as communication
CondensateDrain Reserved for future use
Sanitary A sanitary piping system
Vent A piping ventilation system
Storm Reserved for future use
DomesticHotWater A hot water piping system
DomesticColdWater A cold water piping system
Recirculation Reserved for future use
OtherPipe An user classified piping system
FireProtectWet A wet fire protection system
FireProtectDry A dry fire protection system
FireProtectPreaction A preaction fire protection system
FireProtectOther A user defined fire protection system
SwitchTopology An electrical switch system
Fitting Reserved for application usage, used for UI filtering in Family Editor
Global Reserved for application usage, used for UI filtering in Family Editor
PowerBalanced Equivalent with PowerCircuit
PowerUnBalanced Equivalent with PowerCircuit
CableTrayConduit Indicates the default type for cable trays and conduits

See Also