Knowledge Base AutoCAD
Calculating Networks
Learn how to calculate pipe and duct networks.
About Pipe Network Calculation Heating and Cooling
Explains the concept of pipe network calculation for heating and cooling.
Calculation
Explains the concept of the calculation dialog in Pipe and Duct Network Calculations.
Details on the Heating and Cooling Calculation Dialog
Information about the LINEAR Analyse Heating and LINEAR Analyse Cooling dialogs.
Details on Lock/Unlock Section Parts
Information about the dialog Lock/Unlock section parts in the Heating Pipe Network Calculation and the Cooling Pipe Network Calculation.

New Features
Learn about new features in LINEAR software.
System Requirements
Learn more about the system requirements for using the LINEAR solutions.
Supported Norms and Standards
Learn which norms and standards support the LINEAR Solutions modules.
LINEAR Installation and Administration
Learn how to install, your LINEAR software, license and keep it up to date.
Getting Started
Get basic information about the structure, function and interaction of LINEAR Solutions-programs in AutoCAD and LINEAR Building.
Preparing Building
Learn how drawings are prepared by architects to create architecture for building analysis.
Analyzing Buildings
Get information about the requirements analysis of a building. The demand analysis includes the calculation of the heat load, the cooling load and the ventilation concept.
Dimensioning Components
Learn how to dimension radiators, convectors, panel heating and concrete core activation systems on the basis of the requirements analysis in LINEAR Building and manufacturer-specific.
Inserting Components
Learn how to insert components from the LINEAR CAD Browser into the drawing.
Drawing Networks
Learn how to draw pipe and duct networks, generate schematics, and create slots and openings.
Calculating Networks
Learn how to calculate pipe and duct networks.
- Requirements for a Calculable Pipe- and Duct Network
  Explains the requirements for a calculable pipe and duct network.
- About Virtual Components
  Explains the concept of virtual components in pipe and duct network calculations.
- About Pipe Network Calculation Heating and Cooling
  Explains the concept of pipe network calculation for heating and cooling.
  - Calculation
    Explains the concept of the calculation dialog in Pipe and Duct Network Calculations.
    - Details on the Heating and Cooling Calculation Dialog
      Information about the LINEAR Analyse Heating and LINEAR Analyse Cooling dialogs.
      - About Results
        Explains the concept of the Results dialog in Pipe and Duct Network Calculations.
      - About Reports
        Explains the concept of the reports list in Pipe and Duct Network Calculations.
      - Details on Basic Conditions
        Information about the Basic conditions dialog in the Heating Pipe Network Calculation and the Cooling Pipe Network Calculation.
      - About Visualization
        Explains the concept of visualization of calculation data and properties of pipe and duct networks.
      - Details on Flow Path Data
        Information about the Flow path data dialog in the Heating Pipe Network Calculation and the Cooling Pipe Network Calculation.
      - About Edit Section Part Data
        Explains the concept of editing section parts in Pipe and Duct Network Calculations.
      - Details on Define Section Parts
        Information about the Define section parts dialog in the Heating Pipe Network Calculation and the Cooling Pipe Network Calculation.
      - Details on Lock/Unlock Section Parts
        Information about the dialog Lock/Unlock section parts in the Heating Pipe Network Calculation and the Cooling Pipe Network Calculation.
      - Generating 3D pipes
        Shows step-by-step how to assign pipe materials from the 3D Pipe Construction module to a calculated single-line pipe network.
  - Settings
    Explains the concept of the Settings in the Pipe and Duct Network Calculations.
  - Material Data
    Explains the concept of the material data in the pipe network calculation for Heating, Cooling and Potable water.
  - Dwelling and Decentralized Fresh Water Stations
    Explains the concept of the dialog Dwelling and decentralized fresh water stations in pipe network calculation for heating.
  - Positioning
    Explains the concept of positioning for section parts in the heating and drinking water pipe network calculations.
  - Medium
    Explains the concept Medium in Pipe and Duct Network Calculations for heating, cooling and ventilation.
  - Components
    Explains the concept of the Components section in Pipe and Duct Network Calculations.
- About Pipe Network Calculation Potable Water
  Explains the concept of the Potable Water Pipe Network Calculation.
- About Pipe Network Calculation for Waste Water
  Explains the concept of the Waste Water Pipe Network Calculation.
- About Pipe Network Calculation for Gas
  Explains the concept of the Gas Pipe Network Calculation.
- About the Air Duct Network Calculation
  Explains the concept of the Duct Network Calculation.
Dimensioning/Label
Learn how to label section parts and components in your drawing.
Output
Get information about material compilation in LINEAR Building. You will also learn how to print or export calculation results and material lists in your CAD program.

Details on Lock/Unlock Section Parts

Information about the dialog Lock/Unlock section parts in the Heating Pipe Network Calculation and the Cooling Pipe Network Calculation.

If you calculate a network for the first time, the dimensions of the components are locked by default and will not be changed during a calculation. To optimize the pipe network for the given design criteria, you can unlock the dimensions. Depending on the selected trade, you can lock and unlock other parameters in the dialog, such as the design form or the maximum velocities.

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Assistants ➤ Heating, Cooling / Drawing type ➤ Calculation ➤ Calculation ➤ Lock/Unlock section parts

Applies to: Heating and Cooling.

Entire project, Current System, Current flow path, Current section part

Determines whether you lock or unlock the dimensions or other parameters of all components in the project, the selected system, the marked flow path, or the marked section.

lock

Locks the dimension of the activated parameters. The dimensions of these components are determined during the calculation using the specified parameters.

unlock

Unlocks the dimension of the activated parameters. If you unlock a dimension or parameter, the settings for the dimensioning from dialog where Settings are used.

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Details on Lock/Unlock Section Parts