Greenheck Multi-blade Fire & Combination Fire Smoke Dampers Installation Booklet (826249) - Manual (Page 17)

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 ................................................................................................................................17
Installation ....................................................................................................................................................17-27
• Clearances Requirements .................................................................................................................18
• Duct to Sleeve Connections ...................................... .......................................................................24
• Securing the Damper/Sleeve Assembly to Wall and Floor Openings ........................................24-25
• Actuator Connections ................................... ...................................................................................25
• Recommended Preparation of Openings in Wood and Metal Stud Walls .................................... 25
• Breakaway Connections ...................................... .......................................................................26-27
Maintenance .................................................................................................................................................... 27
Troubleshooting ............................................................................................................................................... 27
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.
17