Greenheck EAC-401 User Manual
Combination Louver/Damper
Drainable Blade
Application and Design
EAC-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 and operable blades. 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. The EAC-401 is an
extremely efficient louver with AMCA LICENSED PERFORMANCE
DATA enabling designers to select and apply with confidence.
Standard Construction
Frame . . . . . . . .Heavy gauge extruded 6063-T5 aluminum,
4 in. x 0.125 in. nominal wall thickness
Blades . . . . . . . .Drainable design, heavy gauge extruded
6063-T5 aluminum, 0.081 in. nominal wall thickness,
positioned at 45º angles on approximately 4 in. centers
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
Construction . . .Mechanically fastened
Birdscreen . . . . .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 96 in. H
Options (at additional cost)
• A variety of bird and insect screens
• A variety of electric, pneumatic or manual actuators
• Clip angles
• Extended sill
• Filter rack
• Flanged frame
• Glazing adaptor
• 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.
EAC-401
WATER
PENETRATION
AIR
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
®
Free Area Chart (Sq. ft.)
Louver
Height
Inches
12 15 18 21 24 27 30 33 36 39 42 48 54 60
12 0.06 0.08 0.10 0.12 0.14 0.15 0.17 0.19 0.21 0.23 0.25 0.29 0.32 0.36
18 0.22 0.29 0.36 0.42 0.49 0.56 0.63 0.70 0.77 0.84 0.91 1.04 1.18 1.32
21 0.38 0.49 0.61 0.73 0.85 0.97 1.09 1.21 1.33 1.44 1.56 1.80 2.04 2.28
27 0.53 0.70 0.87 1.04 1.21 1.38 1.55 1.71 1.88 2.05 2.22 2.56 2.89 3.23
30 0.69 0.91 1.13 1.35 1.57 1.78 2.00 2.22 2.44 2.66 2.88 3.31 3.75 4.19
36 0.85 1.12 1.39 1.66 1.92 2.19 2.46 2.73 3.00 3.27 3.53 4.07 4.61 5.15
39 1.01 1.33 1.64 1.96 2.28 2.60 2.92 3.24 3.56 3.87 4.19 4.83 5.47 6.10
45 1.17 1.53 1.90 2.27 2.64 3.01 3.38 3.74 4.11 4.48 4.85 5.59 6.32 7.06
48 1.32 1.74 2.16 2.58 3.00 3.42 3.83 4.25 4.67 5.09 5.51 6.34 7.18 8.02
54 1.48 1.95 2.42 2.89 3.35 3.82 4.29 4.74 5.23 5.70 6.16 7.10 8.04 8.97
60 1.80 2.37 2.93 3.50 4.07 4.64 5.21 5.77 6.34 6.91 7.48 8.61 9.75 10.89
72 2.11 2.78 3.45 4.12 4.79 5.45 6.12 6.79 7.46 8.12 8.79 10.13 11.46 12.80
78 2.43 3.20 3.97 4.73 5.50 6.27 7.01 7.80 8.57 9.34 10.11 11.64 13.18 14.71
90 2.75 3.61 4.48 5.35 6.22 7.08 7.95 8.82 9.69 10.55 11.40 13.16 14.89 16.63
96 3.06 4.03 5.00 5.96 6.93 7.90 8.87 9.83 10.80 11.77 12.74 14.67 16.61 18.54
Greenheck Fan Corporation certifies that the EAC401 louvers shown herein are licensed to bear the
PENETRATION
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
and procedures performed in accordance with AMCA
AIR
Publication 511 and comply with the requirements
of the AMCA Certified Ratings Program. The AMCA
®
Certified Ratings Seal applies to air performance and
AMCA Seal. The ratings shown are based on tests
WATER
water penetration ratings.
Airflow Resistance (Standard Air - .075 lb/ft
Pa
in. wg
1
0.9
200
100
90
80
70
60
50
40
30
20
Static Pressure Drop
10
9
8
7
6
5
ft/min:
m/s:
Model EAC-401 resistance to airflow (pressure drop) varies
depending on louver application (air intake or air exhaust).
Free area velocities (shown) are higher than average
velocity through the overall louver size. See louver selection
information.
Test Size 48 in. x 48 in.
0.8
Standard Air - .075 lb/ft
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
200 300 400 500 600 7008009001000 2000 3000
3
Exhau
2345678910
Free Air Velocity
Louver Width in Inches
st
Intake
Water Penetration (Standard Air - .075 lb/ft
Test size 48 in. x 48 in. Test duration of 15 min.
3
)
Water Penetration per Unit Free Area
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.
penetration for Model EAC-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.
Combination Louver/Damper
Air Leakage (with damper section closed)
Test size 48 in. x 48 in.
kPa
in. wg
2
0.475
0.45
0.425
1
0.9
0.4
0.8
0.7
0.375
0.6
0.35
0.5
0.4
0.325
Pressure
0.3
0.3
0.2
0.275
0.25
0.1
0.225
0.09
2
112345678910
cfm/ft
2
cmh/m
20 30 40 50 60 70 80 90100 200
ml/m2
oz/ft2
0.30
Test Size 48 in. x 48 in.
80
60
40
20
0
ft/min:
Test Period 15 minutes
0.25
Standard Air - .075 lb/ft
0.20
0.15
0.10
0.05
0.00
1100 1150 1200 1250 1300
m/s:
5.5 6.5
3
Free Area Velocity
The beginning point of water
*
EAC-401PERFORMANCE DATA
Extruded Aluminum
Leakage
3
)
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