Table of Contents |
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Installation | |
• Clearances Requirements | 3 |
• Duct to Sleeve Connections | 3 |
• Securing the Damper/Sleeve Assembly to Wall and Floor Openings | 4 |
• Actuator Connections | 4 |
• Recommended Preparation of Openings in Wood and Metal Stud Walls | 5 |
• Breakaway Connections | 5 |
Maintenance | 8 |
Troubleshooting | 8 |
Pre-Installation Guidelines
The basic intent of a proper installation is to secure the fire or fire smoke damper in, not to, the opening in such a manner as to prevent distortion and disruption of damper operation. This is accomplished by allowing the fire or fire smoke damper in rated separation openings to expand and for the connecting duct to separate in the event of the collapse of the hanging system. The following items will aid in completing the damper installation in a timely and effective manner.
1)Check the schedules for proper damper locations within the building. Visually inspect the damper for damage and verify that the Reusable Resettable Link (RRL) is in place or has not activated. Never install a fire damper without the proper UL approved RRL in place. (RRL is standard control option. These electric links have a button for resetting.) If damper is furnished with fusible link, visually inspect the link to verify its not missing or broken. Replace link as necessary.
2)Lift or handle damper using sleeve or frame. Do not lift damper using blades or actuators.
3)Damper has label on outside of sleeve indicating a ‘No Screw’ area. Do not install screws into this area as screws may interfere with unexposed blade linkage and prevent damper blades from opening and/or closing.
4)Damper has label indicating position of damper and sleeve assembly in the wall. Install accordingly to comply with manufacturer’s appropriate UL Classification file number.
5)Damper must be installed into duct or opening square and free of twist or other misalignment. Damper must not be squeezed or stretched into duct or
opening. Out of square, racked, twisted or misaligned installations can cause excessive leakage and/or torque requirements to exceed damper/actuator design.
6)Damper and actuator must be kept clean and protected from dirt, dust and other foreign materials prior to and after installation. Examples of such foreign materials include but are not limited to:
a)Mortar dust
b)Drywall dust
c)Firesafing materials
d)Wall texture
e)Paint overspray
7)Damper should be sufficiently covered as to prevent overspray if wall texturing or spray painting will be performed within 5 feet of the damper. Excessive dirt or foreign material deposits on damper can cause excessive leakage and/or torque requirements to exceed damper/actuator design.
8)Caulking is not necessary, nor is it allowed, between the damper sleeve and the wall or floor opening (annular space). However, caulking may be applied to the retaining angles.
9)ACCESS: Suitable access (such that RRL’s and actuators can be maintained, etc.) must be provided for damper inspection and servicing. Where it is not possible to achieve sufficient size access, it will be necessary to install a removable section of duct. (Refer to NFPA 90A).
10)The Code Authority Having Jurisdiction (AHJ) must evaluate and provide approval of final installation where variations to these instructions are necessary.
Installation - Failure to follow these instructions will void all warranties.
These instructions apply to 11/2 hour rated combination fire smoke dampers and curtain fire dampers mounted in masonry, block, wood or metal stud walls, or concrete floors. Specific requirements in these instructions are mandatory. These instructions meet the requirements of UL555. Installation shall comply with the requirements of NFPA 90A (Installation of Air Conditioning and Ventilating Systems) and UL listing R13317.
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