ACP Revit Mechanical key terms

A method of splitting one central model so several team members can edit different parts at the same time. Elements are grouped into worksets, and users check out only what they change.

The master copy of a workshared project stored on a shared server or cloud location. All local copies borrow elements from it and send changes back to it.

A user's personal duplicate of the central model, created with Create New Local. Work is done here and later merged back into the central file.

A named collection of elements used to divide ownership and visibility in a workshared project. Typical examples separate interior, shell, and linked discipline content.

The command that saves your local changes into the central model and pulls in teammates' latest work. It also releases borrowed elements you no longer need.

Automatic, temporary checkout of individual elements when you edit them in a workshared model. Others see the elements as owned and cannot change them until released.

A reference marker that stores the project's internal origin and survey-relative position. It anchors grids, levels, and coordinates for the whole model.

A marker representing a known real-world location, such as a benchmark. It lets the building be positioned correctly relative to site and civil data.

A coordinate system published from a linked model, usually the site or architectural file, so multiple models align correctly when linked together.

A command that references another model file inside the current project without merging its content. Links are used for architecture, structure, and coordination across disciplines.

A coordination tool that copies selected elements from a linked model and then watches for changes. When the link changes, Revit warns that the copy may need updating.

A workflow for checking clashes and mismatches between linked models, then recording and resolving them. Results can be exported for review meetings.

A built-in tool that tests selected categories or element sets against each other and reports hard clashes. It is often run on ductwork, pipework, and structure.

A project browser view that lists all mechanical, piping, and electrical systems by type and member. It is used to inspect connectivity and select whole systems.

The setting that tells Revit what a system carries, such as supply air, return air, domestic cold water, or sanitary. It drives calculations, colors, and connector behavior.

A named template that defines the classification, abbreviation, and display properties for a family of systems, such as VAV Supply Air or Chilled Water Supply.

A connected network of ductwork, fittings, and terminals that share one system type. Revit computes flow and sizing across the whole connected network.

A family representing a supply, return, or exhaust device such as a diffuser or grille. It carries a flow value that feeds the connected duct system.

A room-like volume used for mechanical analysis. It stores airflow, load, and occupancy data that drive system sizing and schedules.

A grouping of spaces served by one control or system, used to aggregate airflow and load values. Zones can span several spaces on the same or different levels.

The automatic or manual assignment of duct dimensions based on airflow, friction loss, and velocity limits. Revit supports constant pressure drop, static regain, and velocity methods.

An output that lists the critical path and pressure drops through duct or pipe networks. It helps select fans and pumps and verify that sizing meets design limits.

A connected network of pipes, fittings, and fixtures sharing one system type, such as domestic hot water or sanitary waste. Sloped systems must be drawn with consistent fall.

The fall applied to horizontal pipe runs, set as a ratio or percentage in the pipe's properties. Revit uses it to place fittings and verify drainage direction.

Automatic or manual assignment of pipe diameter based on flow, velocity, and friction criteria. The chosen tables and limits are configured in the pipe system settings.

A unitless measure of the probable demand a plumbing fixture places on a system. Fixture units are converted to flow to size supply and drainage piping.

A family representing a sink, water closet, or similar device, with connectors for supply and waste. Its properties supply the fixture unit values used in sizing.

The separate modeling environment where reusable components are built. It defines geometry, parameters, connectors, and behavior before the family is loaded into a project.

A variation within a family that shares geometry logic but holds different parameter values, such as several duct sizes or diffuser neck dimensions.

A parameter definition stored in an external file so the same parameter can appear in many families and projects. It enables consistent tags and schedules.

A parameter added to categories within one project only. It can be applied to many categories at once and used in schedules and tags.

A defined point on a family that allows ducts, pipes, or wires to attach and pass flow. Its shape, size, and flow configuration control how systems connect.

A text file placed beside a family that lists its types and parameter values. It lets users choose from many predefined sizes when loading the family.

A tabular view that extracts parameter data from model elements. Mechanical schedules commonly list equipment, air terminals, spaces, and duct or pipe quantities.

A schedule listing spaces with their areas, airflow, and load values. It is used to verify design criteria and to feed equipment selection.

A printable layout that holds views, schedules, and annotations at a set scale. Sheets are organized in the project browser and issued as deliverables.

A saved set of view settings, including visibility, scale, and detail level, applied to many views at once. Templates keep drawing standards consistent across a project.

The per-view setting that controls which worksets display. It is commonly used to hide linked or structural content in specific mechanical views.