To Display of a Hatching Pattern to Identify a Duct System

You can add hatching patterns to a duct system to identify separate systems in complex drawings. For example, you can specify different hatch patterns for supply and return duct systems.

1. In the drawing that contains the duct systems, click Manage tab Style & Display panel Style Manager drop-down HVAC System Definitions .
2. Select a duct system.
3. In the right pane, select the Display Properties tab.
4. Double-click Plan under Display Representations.
5. In the Display Properties dialog box, select the Layer/Color/Linetype tab.
6. Select Hatch under Display Component, and specify it as visible.
7. Click the Hatching tab, and specify a hatch pattern.
8. Click OK 3 times.