Carnes EJBA 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
40045, pg 1
SPECIFICATION SHEET
Type C Curtain Fire Damper
Model EJBA - Dynamic
Tag Qty.
Size
Variations
Width Height
Project Location
Arch./Engr. Contractor
Representative Date
t Application and Design
The Model EJBA is UL Classified for installation in walls,
floors and partitions with a fire rating of less than 3 hours.
This damper may be installed vertically or horizontally in
dynamic HVAC systems that continue to run in the event of
fire. Also approved for static systems. (See optional 3 hour
rating.)
Standard Construction:
Frame: roll formed frame, galvanized steel
Blades: low profile roll formed, galvanized steel
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 EJBA 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. 1/4” undersized as given duct
dimensions, unless otherwise noted.
Options:
Factory Sleeve
Retaining Angles
One Side Both Sides
3 Hour Rating
Taped & Sealed Transition
for Medium Pressure System
Caulked & Sealed Damper
Frame/Sleeve
Mounting
Horizontal Vertical
3-11/16”
(94mm)
Damper = nominal - 1/4” (6mm)
Galv. steel
interlocking
blades
Fusible link
(replaceable)
165°F standard
Galv. steel
frame
3/4”
(19mm)
Duct size - 1/4” (6mm)
Standard Sizes (duct) 1-1/2 & 3 Hour
Transition Min. V or H Max. Vertical Size Max. Horizontal Size
Rectangular
or Oval
5”W x 3”H
127mm x 76mm
*71”W x 32”H
1803mm x 813mm
*35”W x 32”H
889mm x 813mm
Round
3”
76mm
32”
813mm
32”
813mm
Round
(Low Profile)3”76mm
34”
864mm
34”
864mm
*See chart for overall sizes
40045, pg 2
Model EJBA - Type C Curtain Fire Damper
FIRE DAMPER SIZE CHART
W = width (duct)
H = height (duct)
X = variable (see size chart)
W
X
Round
D
D+1”
X
Rectangular
H
Duct Height
Height
“X” Dimension
Inches Inches
36
47
58
69
710
811
912
10 13
11 14
12 15
13 16
14 17
15 18
16 19
17 20
18 21
19 22
20 23
21 25
22 26
23 27
24 28
25 29
26 30
27 31
28 32
29 33
30 34
31 35
32 36
Oval
W+1”
W
X
H
X = damper height
W+1”
1-1/4”
(32mm)
1”
(25mm)
4”
(102mm)
4”
(102mm)
4”
(102mm)
1-1/4”
(32mm)
1-1/4”
(32mm)
1”
(25mm)
1”
(25mm)
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