The following table describes the object types in AutoCAD MEP 2022 toolset.
| Object | Description |
|---|---|
| Cable Tray | A part dynamically generated based on predefined properties to which other parts can be connected. It is trimmed when fittings are connected and includes as components connector, annotation, centerline, and rise/drop. |
| Cable Tray Fitting | A part dynamically generated based on predefined properties to which other parts can be connected. It can be inserted during layout and includes as components connector, annotation, centerline, and rise/drop. |
| Circuit | A non-graphical object that represents the connection between electrical components. It has unique identifying properties including system, rating, panel, number of devices, length, number of poles, voltage, total load, demand factor, and estimated demand load. |
| Conduit | A part dynamically generated based on predefined properties to which other parts can be connected. It is trimmed when fittings are connected and includes as components connector, annotation, centerline, and rise/drop. |
| Conduit Fitting | A part dynamically generated based on predefined properties. It can be inserted during layout and includes as components connector, annotation, centerline, and rise/drop. |
| Device | A style-based part that can appear as one of several predefined blocks, depending on the display representation and the direction from which it is viewed. It is used by the Wire object type to complete connections between multiple electrical parts. |
| Duct | A part dynamically generated based on predefined properties to which other parts can be connected. It is trimmed when fittings are connected and includes as components contour, connector, annotation, centerline, insulation, lining, and rise/drop. |
| Duct Custom Fitting | A part dynamically generated from a centerline created from user-selected AutoCAD entities, such as lines and arcs, for the geometry. |
| Duct Fitting | A part dynamically generated based on predefined properties to which other parts can be connected. The part can be inserted by the software as you lay out duct and includes as components contour, connector, annotation, centerline, insulation, lining, and rise/drop. |
| Flex Duct | A part dynamically generated based on predefined properties and a single user-defined centerline to which other parts can be connected. It includes as components contour, connector, annotation, centerline, insulation, lining, and rise/drop; has multiple graphic representations. |
| Flex Pipe | A part dynamically generated based on predefined properties and a single user-defined centerline to which other parts can be connected. It includes as components contour, connector, annotation, centerline, insulation, lining, and rise/drop and it has multiple graphic representations. |
| Label Curve | A style-based object that uses attributes to query part information for labeling. Each label can be dynamically anchored, yet modified independently of its related part. |
| MvPart | A parametric or block-based part that can appear differently in different views based on predefined or user-defined properties or predefined AutoCAD blocks, and depending on the display representation and the direction from which it is viewed. The part can have one or more connection points, and it represents equipment such as air terminals and fans, and fixtures such as lavatories and toilets. |
| Panel | A style-based part that can appear as one of several predefined blocks, depending on the display representation and the direction from which it is viewed. It is used by the Wire object type to complete connections between multiple electrical parts. |
| Pipe | A part dynamically generated based on predefined properties to which other parts can be connected. It is trimmed when fittings are connected and includes as components contour, connector, annotation, centerline, insulation, lining, and rise/drop. |
| Pipe Custom Fitting | A part dynamically generated from a centerline created from user-selected AutoCAD entities, such as lines and arcs, for the geometry. |
| Pipe Fitting | A part dynamically generated based on predefined properties to which other parts can be connected. It can be inserted by the software as you lay out pipe and includes as components contour, connector, annotation, centerline, insulation, lining, and rise/drop. |
| Plumbing Line | A style-based part generated based on predefined properties to which other parts can be connected. It can have different appearances when crossing other segments and different graphical representations for different types of plumbing lines. It is trimmed when additional segments and fixtures are connected and maintains knowledge of flow direction, slope, elevation, and fixture unit load. It includes as components centerline, connector, annotation, rise/drop, slope, and fitting. |
| Plumbing Fitting | A style-based part generated based on predefined properties to which other parts can be connected. It can be inserted during layout and maintains knowledge of flow direction, slope, elevation, and fixture unit load. It includes as components centerline, connector, annotation, rise/drop, slope, and fitting. |
| Schematic Line | A single-segment or multi-segment line used to specify the connectivity and logic dependencies of a building systems layout. It has multiple annotation styles for crossing lines and is trimmed when schematic symbols are added. The properties of a schematic line include system, designation, and ID. |
| Schematic Symbol | A block symbol used to specify real-world equipment or parts, such as fittings or valves, that works in conjunction with schematic lines. It connects to schematic lines by breaking into the line or attaching to the end of the line when added. The properties of a schematic symbol are system and ID. |
| Wire | A style-based part generated based on predefined properties to which other parts can be connected. It has multiple annotation styles for crossing segments and connections, and multiple graphic representation styles for different types of wire. It cleans up when additional wire segments, accessories, panels, and devices are connected. |