Carnes EFTA 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
40085, pg 1
SPECIFICATION SHEET
Combination Fire/Smoke Damper, Class I
Model EFTA - Front Access, Airfoil Blade, w/Sleeve & Thermal Blanket
Tag Qty.
Size
Variations
Width Height
Project Location
Arch./Engr. Contractor
Representative Date
t Standard Construction
Frame: roll formed galvanized steel hat-section with
staked corners with integral bracing
Blades: airfoil-shaped, double skin galvanized steel of roll
formed construction, mechanically joined to form
construction equivalent to 14 ga. steel,
min. width 5”, max. width 7”
Bearings: bronze oilite, press-fit into frame
Axles: square, plated steel
Seals: pressure sensitive 450°F silicone blade edge
seals and flexible metal jamb seals
Linkage: concealed in frame, linkage bars are .125”
thick plated steel
Sleeve: galvanized, wrapped in thermal blanket
(typ. 3 sides)
Controlled Closure Device: (heat activated)
EFL - 165°F standard, 212°, 250°, 350°F available
PFL - 165°F standard, 212°F available
Finish: mill galvanized
Maximum Velocity: 2000 fpm (10.2 m/s) on all sizes
Maximum Pressure: 4” w.c. (1kPa)
Sizes:
Minimum Size: 14”W x 10”H (356mm x 254mm)
Maximum Size: 42”W x 48”H (1067mm x 1219mm)
Features:
• The EFTA series Combination Fire/Smoke Damper have
been designed and tested to exceed all UL,
ULC and NFPA requirements for fire dampers as
well as smoke dampers.
• EFTA is UL 555 and ULC S112 listed and labeled as
a 1-1/2 hour fire damper.
• UL and ULC listed for vertical mounting.
• UL 555S / ULC S112.1 listed and labeled as a Leakage
Class I rated Smoke Damper with airflow in both directions.
Class I provides for a max. leakage of 8 cfm per sq. ft. at 4.0
inches static pressure.
Suggested Specifications:
The EFTA damper is UL / ULC qualified for mounting outside of
the plane of the wall and have concealed actuator access,
from grille side, to allow through the grille access to actuator and
controls.
Notes:
• *Wall opening must be oversized by 3/4” to accommodate thermal
blanket thickness.
• Not recommended with blades running vertically.
• It is recommended the damper must be inspected and cycled at
intervals not greater than every twelve months or in accordance with
NFPA 80, 90A, 92A, local codes and the actuator manufacturer.
Options:
Factory Sleeve (16” x 20 ga. standard,
other gauges and lengths also available)
Retaining Angles Smoke Detector
One Side Ionization
Photoelectric
Transitions DTO/RE w/MS Pkg.
Round Micro Switch Pkg.
Oval RCB-1, -2, -3 (EXRA)
Actuator
Electric Pneumatic, 25 psi
Mounting
Horizontal Vertical
Fire wall
Front access
cover
1” (25mm) Flange
Thermal blanket
(typ. 3 sides)
Grille sold separately
Grille sold separately
3” (76mm)
grille depth
16” max.
(406mm)
6” max.
(152mm)
6”
(152mm)
*Width
12”
Thermal
blanket typ.
3 sides vert.,
4 sides horiz.
Top View
UL 555S CLASSIFIED AT
250°F OR 350°F DEPENDING
UPON MOTOR/OPERATOR
Actuator
compartment
6”
(152mm)
Actuator
compartment
40085, pg 2
PERFORMANCE DATA
Pressure drop testing was done by an independent laboratory to the AMCA Standard 500-D, Fig. 5.3
ductwork upstream and downstream.
DAMPER SIZE 36 x 36
VELOCITY THROUGH FACE AREA
PRESSURE DROP - INCHES OF WATER (In. W.C.)
1.0
.9
.8
.7
.6
.5
.4
.3
.25
.2
.15
.1
.09
.08
.07
.06
.05
.04
.03
.025
.02
.015
.01
100
1000
150 200 300 400 500 700 900 15002000 3000 4000
6000
DAMPER SIZE 24 x 24
VELOCITY THROUGH FACE AREA
PRESSURE DROP - INCHES OF WATER (In. W.C.)
1.0
.9
.8
.7
.6
.5
.4
.3
.25
.2
.15
.1
.09
.08
.07
.06
.05
.04
.03
.025
.02
.015
.01
100
1000
150 200 300 400 500 700 900 15002000 3000 4000 6000
DAMPER SIZE 12 x 12
VELOCITY THROUGH FACE AREA
PRESSURE DROP - INCHES OF WATER (In. W.C.)
1.0
.9
.8
.7
.6
.5
.4
.3
.25
.2
.15
.1
.09
.08
.07
.06
.05
.04
.03
.025
.02
.015
.01
100
1000
150 200 300 400 500 700 900 1500 2000
3000 4000 6000
Model EFTA - Combination Fire/Smoke Damper, Class I
Front Access, Low Pressure Drop Airfoil Blade,
w/Sleeve Wrapped in Thermal Blanket
UL 555 and ULC S112 Listed, UL 555S and ULC S112.1 Listed, 1-1/2 Hour Rated
1.5
2.0
2.5
1.5
2.0
2.5
Loading...