Carnes EGOA User Manual

CARNES COMPANY 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: [phone] Fax: [phone] www.carnes.com

COPYRIGHT © 2012 CARNES COMPANY

ALL RIGHTS RESERVED

40077, pg 1

SPECIFICATION SHEET

Combination Fire/Smoke Damper, Class II

Model EGOA - True Round, Low Pressure Drop Airfoil Blade

Tag Qty.

Size

Variations

Width Height

Project Location
Arch./Engr. Contractor
Representative Date

t Standard Construction

Frame: roll formed galvanized steel, 16” long,

integral sleeve
Blades: double thickness galvanized steel,
14 ga. equivalent with welded channel reinforcement

Bearings: bronze oilite, press-fit into frame
Axles: 3/8” square plated steel
Seals: pressure sensitive 450°F silicone sandwiched

between blades

Linkage: jackshaft to blade
Controlled Closure Device: (heat activated)

EFL - 165°F standard, 212°, 250°, 350°F available
PFL - 165°F standard, 212°F available

Finish: mill galvanized
Retaining Plates: (2) 20 ga. galvanized steel complete

with angle clips

Maximum Velocity: 2000 fpm (10.2 m/s) on all sizes
Maximum Pressure: 4” w.c. (1kPa)

Sizes:

Minimum Size: 8” (203mm) diameter
Maximum Size: 24” (610mm) diameter

Features:

• The EGOA series Combination Fire/Smoke Dampers
have been designed and tested to exceed all UL, ULC
and NFPA requirements for fire dampers as well as
smoke dampers. They are intended for use where
building codes call for a fire damper to also operate
as a smoke damper.

• EGOA is UL 555 and ULC S112 listed and labeled as
a 1-1/2 hour fire damper.

• UL and ULC listed for both vertical and horizontal
mountings.

• UL 555S / ULC S112.1 listed and labeled as a
Leakage Class II rated Smoke Damper with airflow in
both directions. Class II provides for a max. leakage of
20 cfm per sq. ft. at 4.0 inches static pressure. As we
are constantly expanding our UL / ULC listings, we
suggest you contact the factory for current information.

Notes:

•

Retaining plate on operator side of damper is installed at the factory.

• Dampers are furnished approximately 1/8” smaller then given duct

dimensions.

• 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:

 20” Sleeve/Body
 24” Sleeve/Body

 Actuator

 Electric
 Pneumatic, 25 psi

 Smoke Detector

 Ionization
 Photoelectric

 DTO/RE w/MS Pkg.
 Micro Switch Pkg.
 RCB-1, -2, -3 (EXRA)

16” standard

(406mm)

Dia. + 3”

(76mm)

Dia. + 3”

(76mm)

Retaining Plate

(2 supplied)

UL 555S CLASSIFIED AT

250°F OR 350°F DEPENDING

UPON MOTOR/OPERATOR

40077, 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.

PRESSURE DROP

FACE VELOCITY (FPM)

PRESSURE DROP - INCHES OF WATER (In. W.C.)

1.00

Model EGOA - Combination Fire/Smoke Damper, Class II
True Round, Low Pressure Drop Airfoil Blade

UL 555 and ULC S112 Listed, UL 555S and ULC S112.1 Listed, 1-1/2 Hour Rated

.80
.60

.50
.40

.30

.20

.10
.08

.06
.05

.04

.03

.02

.01

100

1000 10000

223344556688

8” DIAMETER

24” DIAMETER

Leakage obtained in test of 8” diameter and 24” diameter was less than 1 cfm/sq. ft.