Air Distribution · Concentric Boxes
Concentric box with opposed-blade damper
Concentric supply/return assembly — Ceiling
ConnectionSupply inlet with balancing damper
SupportIndependent support
How to install it
- 1
Set box
- 2
connect both air paths
- 3
install/verify damper linkage
- 4
mount face
- 5
leave adjustment access.
Quality check
- Damper works, chambers sealed, access retained
Stop and verify
Stop if balancing mechanism is buried