About Working with Phases and Zones

You can use phases with zones (and spaces) as you do with other components in a Revit project.

The phase of the zone must match the phase of the space.
In a linked model, the phase of the zone must match or correspond (if it has a different phase name) to the phase of the linked space.
The phase of the zone must match the phase of the view.
The zone phases are associated with the phase of the view property. If the phase of the view property is changed, the zone will not display in the view.