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These instructions apply to 1
1
/2 hour rated combination fire smoke and fire dampers mounted (blades must be horizontal) in:
1) masonry, block or stud walls and 2) concrete floors or ceilings. Specific requirements in these instructions are mandatory.
Dampers must be installed in accordance with these instructions to meet the requirements of UL 555 and UL 555S. The
installation of the damper and all duct connections to the damper sleeve shall conform to the latest editions of NFPA 90A,
Standard for the Installation of Air Conditioning and Ventilating Systems, and the SMACNA Fire, Smoke and Radiation
Damper Installation Guide, and UL Classifications R13317.
1. CLEARANCES REQUIRED BETWEEN FIRE DAMPER SLEEVES AND WALL/FLOOR OPENINGS
Fire damper assemblies expand during periods of intense heat. Therefore, it is essential that openings in walls or floors
be larger than the fire damper assembly to allow for this expansion. The wall/floor opening must be a minimum of
7
/8 in.
larger than the outside diameter of the damper. Refer to Section 4 for additional installation considerations.
SAFETY DANGER !
Electrical input may be needed for
this equipment. This work should be
performed by a qualified electrician.
All wiring shall be done in accordance with the National
Electrical Code ANSI/NFPA-70 latest edition, any local codes
that may apply, and wiring diagrams developed in compliance
with the job or project design and specifications.
Electrical Guidelines
Installation - Failure to follow these instructions will void all warranties.
SAFETY CAUTION !
Verify power before wiring actuator. Greenheck is not responsible for any damage to, or failure of
the unit caused by incorrect field wiring.
SAFETY DANGER ! : To avoid causing death or serious bodily harm to building occupants, follow
all instructions carefully. Dampers must close completely to preserve the
integrity of the fire smoke separation.
Fig. 1
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