Advertisement
Installation -
These instructions apply to 1
block, or stud walls. Specific requirements in these instructions are mandatory. Dampers must be installed in accordance with
these instructions to meet the requirements of UL555 and UL555S. The installation of the damper and all duct connections
to the damper sleeve shall conform to the latest editions of NFPA90A, 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 and sleeve assemblies expand during
periods of intense heat. Therefore, it is essential that
openings in walls or floors be larger than the fire damper
and sleeve assembly to allow for this expansion.
Minimum clearances required between the outside of
fire damper sleeve assemblies and wall/floor openings
are:
• Galvanized steel fire dampers and sleeves:
(3mm) per foot of damper width and height with a
minimum clearance of
⁄
in. (38mm).
1
2
R ecommended clearances, for width and/or height
dimensions of:
1) 36 in. (914mm) or less:
These are total clearances (ignoring fastener heads) and
do not need to be equally spaced around the damper.
2. SLEEVE LENGTH AND WALL THICKNESS
Insert the sleeved damper assembly into the prepared
opening, to appropriate depth (refer to label on outside
of sleeve for location of damper in wall; see Page 3,
Dimension A and Detail 1, Fig. 1).
Recommended maximum and minimum insertion depth
can be exceeded if:
1) The operation of the damper is not impeded and
2) The C L of the damper frame remains within the plane
of the wall and
3) Attachments made through the retaining angle do
not penetrate the 'No Screw' area designated on the
damper sleeve.
IMPORTANT SAFETY DANGER! : To avoid causing
death or serious bodily harm to building occupants, do
not penetrate the 'No Screw' area designated on the
damper sleeve or the damper may not close properly.
The sleeve may extend a maximum of 16 in. beyond the
wall on the actuator side of the damper and a maximum
of 6 in. on the opposite side. Recommended standard
sleeve lengths for various wall thicknesses are:
Wall Thickness
Dimension (T
W
4 - 6 in.
(102mm - 152mm)
7 - 10 in.
(178mm - 254mm)
11 - 13 in.
(279mm - 330mm)
Failure to follow these instructions will void all warranties.
1
/
hour rated combination fire smoke dampers mounted (blades must be vertical) in: masonry,
2
1
1
⁄
in. (6mm), maximum of 1
4
⁄
in. (13mm) clearance
1
2
Jackshaft
Standard RRL Control Device
with Optional Blade Indication
Sleeve Length
Damper
)
Dimension (L)
Sleeve
16 in.
(406mm)
Actuator
21 in.
"A" Dim.
(Distance from
(533mm)
end of Sleeve to
Face of Damper)
24 in.
(610mm)
Fig. 1
⁄
in.
8
Jackshaft
Standard RRL Control Device
with Optional Blade Indication
Damper
Sleeve
Actuator
"A" Dim.
(Distance from
end of Sleeve to
Face of Damper)
Tw
16 in. max
Example: A 12 in. x 12 in. (305mm x 305mm)damper
Sleeve Length (L)
would require a minimum clearance of
(6mm.)
A 36 in. x 12 in. (914mm x 350mm) damper
would require a minimum clearance of
in. (13mm) on width and
height.
Clearance for Expansion
Tw
(1/4in. Min, 1 1/2in. Max.)
16 in. max
Retaining Angles
(See Section 4)
Sleeve Length (L)
Airlfow
Do not install screws
between these lines
around entire damper
Detail 1
(Located on Bottom of Damper)
6 in. max.
1
/
4
Clearance for Expansion
(1/4in. Min, 1 1/2in. Max.)
Retaining Angles
(See Section 4)
Airlfow
Line of Wall
Do not install screws
between these lines
around entire damper
Detail 1
(Located on Bottom of Da
6 in. max.
Line of Wall
1
/
in.
4
1
/
2
in. (6mm) on
3
Advertisement
