A wall penetration assembly incorporates a fire damper housed within a wall sleeve and secured by retaining angles. The duct connects to the sleeve using a breakaway connection, and a wall grille mounts over the damper face. Sealant and duct insulation with vapor barrier tape apply around the assembly as detailed in the installation notes.
WALL SLEEVE RETAINING ANGLE DUCT WALL GRILLE FIRE DAMPER SEALANT (3) INSULATION (3) BREAKAWAY CONNECTION (4) NOTES: (1) ABOVE DETAIL SHOWS BASIC REQUIREMENT. INSTALL FIRE DAMPERS IN STRICT ACCORDANCE WITH MANUFACTURER'S UL INSTALLATION INSTRUCTION. (2) VERTICAL DAMPER SHOWN. COMBINATION FIRE/SMOKE DAMPER INSTALLATION SIMILAR. (3) FOR DUCTWORK REQUIRING INSULATION, INSTALL INSULATION AND JACKET TO WALL (ALL SIDES) AND APPLY VAPOR BARRIER TAPE TO PREVENT CONDENSATION. TAPE SHALL BE COMPATIBLE WITH INSULATION JACKET AND WALL SURFACE. APPLY INSULATION AFTER DAMPER INSTALLATION INSPECTION HAS BEEN COMPLETED. (4) RETAINING ANGLE SHALL BE INSIDE OF GRILLE FLANGE OR PROVIDE FIRE DAMPER THAT REQUIRES RETAINING ANGLES AT ONLY ONE SIDE.
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