The combination fire and smoke damper assembly is installed within and fastened to a duct sleeve penetrating a floor or wall. Minimum sixteen-gauge one-and-a-half by one-and-a-half inch mounting angles secure the sleeve to the barrier with caulking material sealing the perimeter. The damper includes a one-hundred-twenty-volt actuator, an electric resettable link firestat, and an over-center link. A duct smoke detector is positioned upstream within sixteen inches of the damper and utilizes an access door on the ductwork.
NOTES: 1. COMPLY WITH MFR INSTALLATION INSTRUCTIONS, UL555, UL555S AND SMACNA FIRE DAMPER INSTALLATION MANUAL. 2. FRAME OPENINGS AND PROVIDE DUCT CONNECTIONS PER MFR INSTALLATION INSTRUCTIONS. 3. DAMPER ASSEMBLY INSTALLED IN AND FASTENED TO THE SLEEVE. 4. MAINTAIN FULL DUCT SIZE. DAMPER HOUSING SHALL NOT OBSTRUCT AIR FLOW. 5. MOUNTING SHOWN IS VERTICAL INSTALLATION. COMPLY WITH MFR INSTALLATION INSTRUCTIONS FOR HORIZONTAL INSTALLATIONS. SLEEVE FLOOR OR WALL DUCT DAMPER MOUNTING ANGLES (TYP) MIN. 16 GAUGE 1-1/2" X 1-1/2" FIRE/SMOKE DAMPER ACTUATOR (120V) 16" MAX 6" MAX DUCT/SLEEVE CONNECTION ACCESS DOOR CAULKING MATERIAL OVER-CENTER LINK ELECTRIC RESETTABLE LINK. [FIRESTAT] AD DUCT SMOKE DETECTOR FURNISHED AND WIRED BY OTHERS. DUCT SMOKE DETECTOR INSTALLED ON DUCTWORK BY DIVISION 23.
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