Carnes EDMA 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
40090
SPECIFICATION SHEET
Ceiling Radiation Damper - Hinged Type Blade
Model EDMA - Square/Rectangular
Tag Qty.
Size
Variations
Width Height
Project Location
Arch./Engr. Contractor
Representative Date
t Application and Design
The Model EDMA is a square/rectangular UL
classified ceiling (radiation) damper, hinged door
style, approved for both steel duct and ductless
installations in approved UL ceiling designs that
incorporate/show a hinged door damper requiring
fire/heat protection where HVAC components
penetrate the ceiling membrane. These dampers
provide protection up to 24” x 24” openings.
These dampers are held open by fuse link being
suspended from above structure.
Standard Construction:
Frame: roll formed, 22 ga. galvanized steel
Blades: 22 ga. galvanized steel
with non-asbestos UL/ULC classified
insulation
Fusible Link: replaceable 212°F
(100°C) standard (others available)
Opening: 576 sq. in.
Designed and tested in accordance to standards:
UL 555C, ULC S112.2. Labeled and listed by UL/ULC
under File # R26251. They meet all the NFPA 90A,
IBC Code and other major code requirements for
Ceiling (Radiation) Dampers.
Fusible link
Manufacturer’s Recommendations
All moving parts of the damper must be inspected and cycled once the first year and at intervals not greater than every
4 years or in accordance with the latest edition of NFPA 90A, 92A, local codes and the manufacturer. In addition, fuse links shall
be removed and inspected for corrosion. Dry lubricants are recommended.
Opening dimension less 1/4” (6mm)
2-1/2” (64mm)
Standard Sizes
Nominal Size Actual Size
12” x 12”
305mm to 305mm
11-3/4” x 11-3/4”
298mm x 298mm
24” x 12”
610mm to 305mm
23-3/4” x 11-3/4”
603mm x 298mm
24” x 24”
610mm to 610mm
23-3/4” x 23-3/4”
603mm x 603mm
Ceiling damper
model EDMA
non-asbestos.
Open to
maximum 85°.
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