Image of RD-8
UL 521 Listed
Basis of Design
Multifamily Ready
Fast Lead Times

UL Rated, Fire, Smoke, and Ceiling Radiation Dampers /Ceiling Radiation Dampers /Curtain Style Blade (ID 226) /Curtain Style Blade (ID 227)

RD-8

3 Hour - Ceiling Radiation Damper

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Common Applications

  • Wood Truss Assemblies
  • Multifamily
  • Light Commercial

Resources

Product Sheets

  • PDF RD-8 Product Sheet
  • PDF Ceiling Radiation Blanket
  • PDF RD-Operation and Maintenance

Installation Instructions

  • PDF RD2(R) (SB), RD4, RD8 Installation Instructions
  • PDF Fire Rated Duct Board Plenum

Overview

The RD-8 ceiling radiation damper employs a folded curtain style blade for point-of-origin control of radiant heat in HVAC systems. The RD-8 is installed horizontally in the ceiling membrane of floor-ceiling or roof-ceiling assemblies with fire resistance ratings up to and including 3 hours.

Standard Construction

Frame: 22 ga. (0.85) galvanized steel.
Blades: Folded ceramic curtain.
Fire Closure Device: Fusible Link.
Fire Closure Temperature: 165oF (75oC).
Minimum Size: 6" x 4" (152 x 102)
Maximum Size: 24" x 24" (610 x 610)

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