Turn Double Line Layers On (and 3D Layers Off)

The Turn Double Line Layers On (and 3D Layers Off) command turns the double line ductwork layers on and turns the 3D ductwork layers off.

The double line and 3D ductwork are drawn slightly different. Viewing both of them at the same time can make it difficult to see what is drawn. Turning one on and the other off makes it easier to see the design.

Use this command to view the ductwork while in plan view.

To turn the double line layers on and the 3D ductwork layers off, go to
Ribbon: DM HVAC→Layers→  Turn Double Line Layers On (and 3D Layers Off)
Pulldown Menu: DM HVAC→Layer Management→Turn Double Line Layers On (and 3D Layers Off)

The double line ductwork layers will be turned on and visible on the drawing.

If this command is run while in a paper space viewport, the VP Freeze setting for the double line layers will be changed to Thawed.

The 3D ductwork layers will be turned off and not visible on the drawing.

If this command is run while in a paper space viewport, the VP Freeze setting for the 3D layers will be changed to Frozen.