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Combination Exhaust Louver/Backdraft Damper
J Blade
Application and Design
GCE-402 is a combination weather louver and gravity
backdraft damper designed to protect air exhaust openings
in building exterior wall. Design incorporates a drainable head
member, J style stationary louver blades, pressure/gravity
operated damper blades and sloped sill to provide maximum
resistance to rain and weather. Recommended application
is in close proximity (preferably ducted) to an exhaust air fan
as pressures required to operate the GCE-402 may exceed
pressure differentials available without an adjacent fan. This
model is not recommended for barometric relief applications.
Standard Construction
Frame . . . . . . . .Heavy gauge extruded 6063-T5 aluminum,
4 in. x 0.081 in. nominal wall thickness
Blades . . . . . . . .Louver blade: J style design, heavy gauge
extruded aluminum, 0.081 in. nominal wall
thickness, positioned at 45º angles on
approximately 4 in. centers
Backdraft damper blade: heavy gauge
extruded 6063-T5 aluminum, 0.062 nominal
wall thickness
Temperature
Restrictions . . . .(-20º F) - (+180ºF)
Bearings . . . . . .Synthetic sleeve type
Insect screen . . 3/4 in. x 0.051 in. fl attened expanded
aluminum in removable frame,
inside mount (rear)
Finish . . . . . . . . .Mill
Minimum Size . . 12 in. W x 12 in. H
Maximum Single
Section Size . . .60 in. W x 120 in. H
GCE-402
Options (at additional cost)
• A variety of bird and insect screens
• A variety of architectural finishes including:
Clear anodize
Integral color anodize
Baked enamel paint
Kynar paint
• Extended sill
• Flange frame
*Width and height dimensions are actual.
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GCE-402PERFORMANCE DATA
Combination Exhaust Louver/Backdraft Damper
Extruded Aluminum
Typical Application
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GCE-402INSTALLATION DETAILS
Maximum Size and Installation Information
The maximum single section size for the GCE-402 is 60 in. W x 120 in. H. Larger openings require field assembly of multiple louver
panels to make up the overall opening size. Individual louver panels are designed to withstand a 25 PSF wind-load (please consult
Greenheck if the louvers must withstand higher wind-loads). Structural reinforcing members may be required to adequately support
and install multiple louver panels within a large opening. Structural reinforcing members along with any associated installation
hardware is not provided by Greenheck unless indicated otherwise by Greenheck. Additional information on louver installation may
be found in AMCA Publication #501, Louver Application Manual.
Combination Exhaust Louver/Backdraft Damper
Extruded Aluminum
Minimum Single Section Size
6 in. W x 6 in. H
Maximum Single Section Size
60 in. W x 120 in. H
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GCE-402PRODUCT DETAILS
Combination Exhaust Louver/Backdraft Damper
Extruded Aluminum
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GCE-402OPTION DRAWINGS
Combination Exhaust Louver/Backdraft Damper
Extruded Aluminum
FINISHES
Finish Type Description/Application Color Selection
2-coat 70% KYNAR 500®/HYLAR 5000® AAMA 2605 –
Dry fi lm thickness 1.2 mil. (AKA: Duranar®, Fluoropon®,
Trinar®, Flouropolymer, Polyvinylidene Fluoride, PVDF2)
2-coat 50% KYNAR 500®/HYLAR 5000® AAMA 2604
– Dry fi lm thickness 1.2 mil. (AKA: Acrofl ur®, Acrynar®)
Baked Enamel AAMA 2603 – Dry fi lm thickness 0.8 mil.
(AKA: Acrabond Plus®, Duracron®)
Integral Color Anodize AA-M10C22A42 (>0.7 mil)
Clear Anodize 204 R-1 AA-M10C22A31 (0.4-0.7 mil)
Industrial coatings
Mill
“Best.” The premier fi nish for extruded aluminum. Tough,
long-lasting coating has superior color retention and
abrasive properties. Resists chalking, fading, chemical
abrasion and weathering.
“Better.” Tough, long-lasting coating has excellent color
retention and abrasive properties. Resists chalking, fading,
chemical abrasion and weathering.
“Good.” Provides good adhesion and resistance to
weathering, corrosion and chemical stain.
“Two-step” anodizing is produced by following the normal
anodizing step with a second, colorfast process.
Clear, colorless and hard oxide aluminum coating that resists
weathering and chemical attack.
Greenheck offers a number of industrial coatings such as Hi-Pro Polyester, Epoxy, and Permatector®.
Consult a Greenheck Product Specialist for complete color and application information.
Materials may be supplied in natural aluminum or galvanized steel fi nish when normal weathering is
acceptable and there is no concern for color or color change.
Finishes meet or exceed AAMA 2605, AAMA 2604, and AAMA 2603 requirements. Please consult www.greenheck.com for complete information on standard and
extended paint warranties. Paint fi nish warranties are not applicable to steel products.
Standard Colors: Any of the 24
standard colors shown can be
furnished in 70% or 50% KYNAR
500®/HYLAR 5000® or Baked Enamel.
2-Coat Mica:
Greenheck offers 9 standard 2coat Mica colors. Other colors are
available. Consult Greenheck for
possible extra cost when selecting
non-standard colors or special
fi nishes.
Medium or Dark Bronze 5 years
Clear 1 Year
Copyright © 2008 Greenheck Fan Corporation
Standard Warranty
(Aluminum)
10 Years
(Consult Greenheck for
availability of extended
warranty)
5 Years
1 Year
Consult Greenheck
n/a
GCE-402
July 2008
Greenheck Fan Corporation reserves the right
to make product changes without notice.
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