Carnes EHFA User Manual
CARNES COMPANY 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: (608)845-6411 Fax: (608)845-6504 www.carnes.com
COPYRIGHT © 2012 CARNES COMPANY
ALL RIGHTS RESERVED
40061
SPECIFICATION SHEET
Type A Curtain Fire Damper, Floor/Ceiling Grille Mount w/Sleeve
Model EHFA - Dynamic
Tag Qty.
Size
Variations
Width Height
Project Location
Arch./Engr. Contractor
Representative Date
t Application and Design
The Model EHFA is UL Classified for installation in floors
and partitions with a fire rating of less than 3 hours. This
damper may be installed horizontally in static systems or
dynamic HVAC systems that continue to operate in the
event of fire. (See optional 3 hour rating.)
Standard Construction:
Frame: roll formed frame, galvanized steel, sleeved
Sleeve: 20 ga. galvanized, 12” length standard
(other lengths and gauges available)
Blades: low profile roll formed, galvanized steel
Flange: 3/4”
Closure Springs: stainless steel constant force coil
Fusible Link - UL-33: UL listed 165°F (standard),
212°F (optional)
Maximum Velocity: 2000 fpm (10.2 m/s)
Maximum Pressure: 4” w.c. (1kPa)
Model EHFA meets or complies with the following as a fire damper:
All major building codes, including IBC/ICC International Code
UL 555 Listing 1-1/2 and 3 hour - File #R26359
ULC S112
NFPA 90A, 80
Note: Dampers are furnished approx. same size as given duct
dimensions, unless otherwise noted by breakaway connection.
Options:
Retaining Angles
One Side
3 Hour Rating
212°F (100°C) Fuse Link
Mounting
Horizontal Only
3-11/16”
(94mm)
Galv. steel
interlocking
blades
Fusible link
(replaceable)
165°F std.
Galv. steel
frame
20 ga. galv. steel
sleeve 12” (305mm)
long standard
3/4” (19mm)
standard
1-1/4”
(32mm)
Exact
size
3” (76mm)
standard
12” (305mm)
standard
D = W-2, H-2
Fire damper must be in the plane of the floor
/ ceiling after installation. If grille places
damper out of the plane, then out of wall
construction must be ordered.
Round
Optional
Standard Sizes (duct) 1-1/2 & 3 Hour
Transition
Min. Horizontal Size
Max. Horizontal Size
Rectangular
6”W x 6”H
152mm x 152mm
36”W x 36”H
914mm x 914mm
*Round
4”
102mm
34”
864mm
*Optional
CEILING/FLOOR GRILLE
TYPICAL HORIZONTAL DAMPER
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