Rectangular & TDC · Size, Pressure & Special Routing
Negative-pressure exhaust duct
Round/rectangular — Exhaust/suction
ConnectionSealed/gasketed/welded
SupportSupports preventing deformation
How to install it
- 1
Use joints and reinforcement rated for negative pressure
- 2
support to prevent collapse
- 3
seal all seams
- 4
orient flexible connectors to resist inward collapse
- 5
leak-test as specified.
Quality check
- No panel suck-in
- joints airtight
- connector stable
Stop and verify
Stop if duct walls deflect or liner is loose