Rectangular & TDC · Dampers & Life Safety
Access door in rectangular duct
Service access — Inspection/cleaning point
ConnectionGasketed access door
SupportLocal reinforcement as required
How to install it
- 1
Select correct pressure/temperature door
- 2
locate reachable side
- 3
cut reinforced opening
- 4
install frame square
- 5
gasket and latch door
- 6
seal perimeter.
Quality check
- Door opens fully
- gasket seals
- latches secure
- no sharp edges
Stop and verify
Stop if opening cuts reinforcement or door becomes inaccessible