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Modifying Diffusers

This tutorial teaches you how to modify diffusers on your drawing.

Open drawing M-1.0.

Move a Diffuser​

Use the standard CAD MOVE command to move the two CD-1 diffusers on the right side of the lobby, as shown in the image below. You can move the diffuser like any other entity in your CAD program.

Move Diffuser Callouts​

  1. Run the Insert or Move Callout command.
    Ribbon: DM HVAC→Diffusers→  Insert or Move Callout
    Pulldown Menu: DM HVAC→Diffusers→Insert or Move Callout

  2. Select the lower-right CD-1 diffuser in the lobby.

  3. Move the diffuser callout below the diffuser. You can move the callout like any other entity in your CAD program.

Repeat this process for the upper-right CD-1 diffuser in the lobby. Move the diffuser callout above the diffuser.

Change a Single Diffuser​

  1. Run the Query Diffuser command.
    Ribbon: DM HVAC→Diffusers→  Query Diffuser
    Pulldown Menu: DM HVAC→Diffusers→Query Diffuser

  2. Select the CD-1 diffuser in the corridor on the drawing. The Query Diffuser dialog box will open.

  3. Set Callout ☰ to SD-1.

  4. Press the button to close the dialog box.

The diffuser on the drawing will be changed from a CD-1 diffuser to an SD-1 diffuser.

Change Multiple Diffusers​

  1. Run the Edit Multiple Diffusers command.
    Ribbon: DM HVAC→Diffusers→  Edit Multiple Diffusers
    Pulldown Menu: DM HVAC→Diffusers→Edit Multiple Diffusers

  2. Select the group of four CD-1 diffusers in the lobby on the drawing. The Edit Multiple Diffusers dialog box will open.

  3. Set CFM to 200.

  4. Press the button to close the dialog box.

The airflow of the diffusers on the drawing will be changed from 0 to 200. The callouts will be updated to reflect this value.

Repeat this process to set the CFM of the remaining CD-1 diffusers in the lobby to 100.