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Combination Louver/Damper
Concealed Actuator
Application and Design
EACC-401 is a combination louver/damper designed to protect air
intake and exhaust openings in building exterior walls that, at times,
require tight air shut off. Design incorporates a drainable head member,
drainable stationary blades, operable blades and a concealed actuator
within the louver sill. When the operable blades are open, airflow is
permitted through the louver, when the blades are closed, a tight seal
is created to prevent the passage of air.
Standard Construction
Frame � � � � � � � �Heavy gauge extruded 6063-T5 aluminum,
4 in. x 0.125 in. nominal wall thickness
Blades � � � � � � � �Stationary blade: drainable design, heavy gauge
extruded 6063-T5 aluminum, 0.081 in. nominal wall
thickness, positioned at 45º angles on approximately
4 in. centers
Operable blade: heavy gauge extruded 6063-T5
aluminum, 0.081 nominal wall thickness
Seals . . . . . . . . .Dual-durometer extruded vinyl blade seals
Compressible stainless steel jamb seals
Temperature
Restrictions . . . .(-20º F) - (+180ºF)
Linkage . . . . . . .Side linkage, out of airstream (concealed in frame)
Bearings . . . . . .Synthetic sleeve type
Axles . . . . . . . . .½ in. dia. zinc plated steel
Actuator . . . . . .Invensys MA series, 2 position spring return
Construction . . .Mechanically fastened
Birdscreen � � � � �3/4 in. x 0.051 in. flattened expanded aluminum in
removable frame, inside mount (rear)
Finish � � � � � � � � �Mill
Minimum Size � �18 in. W x 20 in. H
Maximum Single
Section Size � � � 60 in. W or 96 in. H
EACC-401
Options (at additional cost)
• A variety of bird and insect screens
• Extended sill
• Filter rack
• Flanged frame
• Hinged frame
• Security bars
• A variety of architectural finishes including:
Clear anodize
Integral color anodize
Baked enamel paint
Kynar paint
*Width and height dimensions furnished
approximately ¼ inch under size.
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1100 1150 1200 1250 1300
0.00
0.05
0.10
0.15
0.20
0.25
0.30
Test Size 48 in. x 48 in.
Test Period 15 minutes
Standard Air - .075 lb/ft
3
ml/m2
m/s:
ft/min:
oz/ft2
5.5 6.0 6.5
0
20
40
60
80
Water Penetration per Unit Free Area
Free Area Velocity
Free Area Chart (Sq. ft.)
Louver
Height
Inches
18 21 23 26 29 32 35 38 41 44 48 51 54 57 60
20 0.21 0.25 0.28 0.32 0.36 0.40 0.45 0.49 0.53 0.57 0.63 0.67 0.71 0.75 0.79
24 0.45 0.54 0.60 0.69 0.77 0.86 0.95 1.04 1.13 1.22 1.33 1.42 1.51 1.60 1.69
28 0.69 0.82 0.91 1.05 1.19 1.32 1.46 1.59 1.73 1.86 2.04 2.18 2.31 2.45 2.59
32 0.93 1.11 1.23 1.41 1.60 1.78 1.96 2.14 2.33 2.51 2.75 2.94 3.12 3.30 3.48
36 1.17 1.40 1.55 1.78 2.01 2.24 2.47 2.70 2.93 3.16 3.46 3.69 3.92 4.15 4.38
40 1.41 1.68 1.87 2.14 2.42 2.70 2.97 3.25 3.53 3.80 4.17 4.45 4.72 5.00 5.28
44 1.64 1.96 2.17 2.50 2.82 3.14 3.46 3.78 4.11 4.43 4.86 5.18 5.50 5.82 6.14
48 1.82 2.18 2.42 2.78 3.14 3.50 3.86 4.21 4.57 4.93 5.41 5.77 6.13 6.49 6.84
52 1.88 2.25 2.50 2.87 3.24 3.61 3.98 4.35 4.73 5.10 5.59 5.96 6.33 6.70 7.07
56 2.12 2.54 2.82 3.24 3.65 4.07 4.49 4.91 5.32 5.74 6.30 6.72 7.13 7.55 7.97
60 2.36 2.83 3.14 3.60 4.07 4.53 4.99 5.46 5.92 6.39 7.01 7.47 7.94 8.40 8.87
64 2.60 3.11 3.45 3.97 4.48 4.99 5.50 6.01 6.52 7.04 7.72 8.23 8.74 9.25 9.76
68 2.84 3.40 3.77 4.33 4.89 5.45 6.01 6.56 7.12 7.68 8.43 8.99 9.54 10.10 10.66
72 3.08 3.68 4.09 4.69 5.30 5.91 6.51 7.12 7.72 8.33 9.14 9.74 10.35 10.95 11.56
76 3.32 3.97 4.41 5.06 5.71 6.36 7.02 7.67 8.32 8.97 9.84 10.50 11.15 11.80 12.46
80 3.55 4.25 4.71 5.41 6.11 6.81 7.50 8.20 8.90 9.60 10.53 11.23 11.93 12.62 13.32
84 3.74 4.47 4.96 5.69 6.43 7.16 7.90 8.63 9.37 10.10 11.08 11.82 12.55 13.29 14.02
88 3.80 4.54 5.04 5.79 6.53 7.28 8.03 8.77 9.52 10.27 11.26 12.01 12.76 13.50 14.25
92 4.03 4.83 5.36 6.15 6.95 7.74 8.53 9.33 10.12 10.91 11.97 12.77 13.56 14.35 15.15
96 4.27 5.11 5.68 6.52 7.36 8.20 9.04 9.88 10.72 11.56 12.68 13.52 14.36 15.20 16.04
Airflow Resistance (Standard Air - �075 lb/ft
Pa
in. wg
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
200 300
Test Size 48 in. x 48 in.
Standard Air - .075 lb/ft
3
Exhaust
400
500 600 700800 900 1000 2000 3000
2345678910
Free Air Velocity
200
100
90
80
70
60
50
40
30
0.09
20
0.08
0.07
Static Pressure Drop
Model EACC-401 resistance to airflow (pressure drop)
varies depending on louver application (air intake or air
0.06
0.05
10
0.04
9
8
0.03
7
6
5
0.02
ft/min:
m/s:
exhaust). Free area velocities (shown) are higher than average
velocity through the overall louver size. See louver selection
information.
Louver Width Inches
Intake
3
) Water Penetration (Standard Air - �075 lb/ft3)
Test size 48 in. x 48 in. Test duration of 15 min.
The AMCA Water Penetration Test provides a method for comparing
various louver models and designs as to their efficiency in resisting
the penetration of rainfall under specific laboratory test conditions.
The beginning point of water penetration is defined as that velocity
where the water penetration curve projects through .01 oz. of water
(penetration) per sq. ft. of louver free area. *The beginning point of
water penetration for Model EACC-401 is 1192 fpm free area
velocity� These perfor mance ratings do not guarantee a louver to be
weather proof or stormproof and should be used in combination with other
factors including good engineering judgement in selecting louvers.
EACC-401PERFORMANCE DATA
Combination Louver/Damper
Extruded Aluminum
Air Leakage (with damper section closed)
Test size 48 in. x 48 in.
kPa
in. wg
2
0.475
0.45
0.425
0.375
0.325
Pressure
0.275
0.225
1
0.9
0.4
0.8
0.7
0.6
0.35
0.5
0.4
0.3
0.3
0.2
0.25
0.1
0.09
2
112345678910
cfm/ft
2
cmh/m
20 30 40 50 60 70 80 90100 200
Leakage
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EACC-401PRODUCT DETAILS
Maximum Size and Installation Information
The maximum single section size for the EACC-401 is 60 in� W or 96 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 Louver/Damper
Extruded Aluminum
Minimum Single Section Size
18 in� W x 17�25 in� H
Maximum Single Section Size
60 in� W or 96 in� H
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EACC-401PRODUCT DETAILS
Combination Louver/Damper
Extruded Aluminum
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EACC-401OPTION DRAWINGS
Combination Louver/Damper
Extruded Aluminum
FINISHES
Finish Type Description/Application Color Selection
2-coat 70% KYNAR 500®/HYLAR 5000® AAMA 2605 –
Dry film thickness 1�2 mil� (AKA: Duranar®, Fluoropon®,
Trinar®, Flouropolymer, Polyvinylidene Fluoride, PVDF2)
2-coat 50% KYNAR 500®/HYLAR 5000® AAMA 2604
– Dry film thickness 1�2 mil� (AKA: Acroflur®, Acrynar®)
Baked Enamel AAMA 2603 – Dry film thickness 0�8 mil�
(AKA: Acrabond Plus®, Duracron®)
Integral Color Anodize AA-M10C22A42 (>0�7 mil)
Clear Anodize 215 R-1 AA-M10C22A41 (>0�7 mil)
Clear Anodize 204 R-1 AA-M10C22A31 (0�4-0�7 mil)
Industrial coatings
Mill
“Best.” The premier finish 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�
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 finish 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 finish 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
finishes�
Light, Medium or Dark Bronze;
Champagne; Black
Clear 5 years
Clear 1 Year
Copyright © 2011 Greenheck Fan Corporation
Standard Warranty
(Aluminum)
10 Years
(Consult Greenheck for
availability of extended
warranty)
5 Years
1 Year
5 years
Consult Greenheck
n/a
EACC-401
March 2011 Rev� 1
Greenheck Fan Corporation reserves the right
to make product changes without notice�
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