Delete System

Remove an incorrect or duplicate MEP system definition without losing the pipes, ducts, or equipment it contains.

General Description

Delete System removes the piping, duct/mechanical, or electrical system that your selected elements belong to — without deleting the elements themselves. The physical pipes, ducts, and equipment stay in the model, simply unassigned from that system afterward.

This is useful when a system was created incorrectly, duplicated by accident, or needs to be rebuilt from scratch: instead of deleting and recreating every element, you remove just the system definition and reassign the elements as needed.

Key Features

• Deletes only the MEP system element — piping, ducts, and equipment are left untouched.
• Works from any element connected to the system; you don't need to select the system itself.
• Supports piping, HVAC/mechanical, and electrical systems.
• Resolves every distinct system reachable from your selection in one operation.

Requirements

• At least one element that belongs to a piping, mechanical, or electrical system.

Usage Procedure

1. Select one or more elements that belong to the system(s) you want to remove.
2. Open Delete System from the MEP panel on the Frata ribbon tab.
3. The tool deletes every system reached from your selection; the elements themselves remain in the model.

Recommendations

• If nothing was actually removed, check that your selection includes elements that are genuinely assigned to a system — a warning appears when no system is found.
• Use this before reassigning elements to a corrected or newly created system.