Used to quickly join common duct or pipe intersections; Turns, tees and cross intersections. Depending on the circumstances, individual fittings or a combination of fittings are inserted using Mechanical discipline's auto fitting placement functionality.

• Ribbon: Building Design > Modify > Modify > Connect > Connect Ducts/Pipes
• Ribbon: Modeling > Forms > Modify Forms > Connect > Connect Ducts/Pipes

Setting	Description
Join Method	Three methods are available for joining duct or pipe intersections. Elbow — Joins with an elbow fitting for any angle, or an elbow/transition fitting combination if the joined components differ in size or shape. Tee — For duct, joins perpendicular tee intersections with a takeoff fitting. For pipe, joins perpendicular and angled tee intersections with a tee fitting. Tees are automatically selected from available manufacturer catalogs. Cross (disabled in Plumbing) — Joins perpendicular cross intersections with takeoffs. The first duct selected is broken, and the broken segments are then attached to the second component with takeoff fittings. Tip: Use ( Device Hookup ) to join route intersections with angled tee and cross intersections.
Tolerance	Sets the allowable tolerance distance between the centers of the two selected ducts/piping routes. Centers must be within the allowable tolerance distance in order to be joined. If the distance between the centers of the selected components is greater than the allowed distance, the tolerance must be increased to successfully join the two.