Inserting Ductwork Transitions « Knowledge Base

Inserting Ductwork Transitions

Posted on September 28th, 2010. Last updated on March 7th, 2024.

Transitions in ductwork are inserted automatically when the size of the ductwork changes. This typically happens at branches.

If you need a transition in the middle of a straight section of duct, use the Break Duct command to insert a break in the duct.

Change the size of the ductwork on one side of the break. When you redraw the ductwork, the transition between the two sizes will be inserted automatically.

If you’re inserting an eccentric transition, see the Inserting Eccentric Transitions article for more information.

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Inserting Eccentric Transitions

You can insert an eccentric transition in your ductwork by configuring the horizontal alignment for the duct centerline.

Duct-Mounted Diffusers

Design Master HVAC does not have a command specifically for inserting or connecting duct-mounted diffusers and grilles. However, you can approximate them by inserting the diffuser close to the duct to which it is mounted.

DM Entities Insert Skewed or in the Wrong Location

If your Design Master entities come in skewed or in a different location than the one you specified, try resetting your drawing view to “Top” and reinserting.

Inserting Turning Vanes

Turning vanes can be inserted manually when you insert square elbow and wye fittings, or you can set them to be inserted on those fittings by default in the project customization options.

Dialog Box Keyboard Shortcuts

Many Design Master dialog boxes can be navigated using keyboard shortcuts. Here is a table of common shortcuts and instructions on how to find what shortcuts are available in each dialog box.

Changing Duct Offset in the Middle of a Duct Run

When changing the offset in the middle of a duct run, insert a transparent duct so the ductwork will be modeled correctly.