Carnes EHAA User Manual

Fire, Smoke & Ceiling Radiation Dampers

SECTION 2

E-22 www.carnes.com

Model EHAA - Type A Curtain Fire Damper w/Integral Sleeve

UL 555 Classified 1-1/2 and 3 Hours, For Use in Dynamic or Static Systems

t Application and Design

The Model EHAA 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: 12” roll formed frame, galvanized steel,

integral sleeve

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 EHAA 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 #R25410
ULC S112
NFPA 90A, 80

Note: Dampers are furnished approx. as given duct dimensions,
unless otherwise noted.

Standard Sizes (duct) 1-1/2 & 3 Hour

Min. V or H Max. Vertical Size

Max. Horizontal Size

6”W x 6”H

152mm x 152mm

*72”W x 36”Hor36”W x 72”H

1829mm x 914mm 914mm x 1829mm

*36”W x 36”H

914mm x 914mm

*May consist of multi-sections

Options:

 Retaining Angles

 One Side

 Both Sides
 3 Hour Rating
 Mounting

 Horizontal

 Vertical

2-3/16”

(56mm)

Opening = nominal size

Galv. steel
interlocking
blades

Fusible link
(replaceable)
165°F standard

Galv. steel frame

20 ga. galv. steel
sleeve
12” (305mm) long
standard

12” (305mm) standard

*14” (356mm) & 16” (406mm)

fabricated available

in model EHBA