Greenheck Fan OFSD-XXX Benutzerhandbuch

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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.
Table of Contents
Pre-Installation Guidelines ................................................................................................................................ 2 
Installation ......................................................................................................................................................2-6
 
• 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
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.
Installation - 
Failure to follow these instructions will void all warranties.
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