Greenheck EAH-401 Installation Manual
Adjustable Louver
J Blade
Application and Design
EAH-401 is an adjustable louver designed to protect air intake and
exhaust openings in building exterior walls. Design incorporates
a drainable head member, adjustable J style blades and high
free area to provide maximum resistance to rain while providing
minimum resistance to airflow. The EAH-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 . . . . . . . .J style 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
• Security bars
• A variety of architectural finishes including:
Clear anodize
Integral color anodize
Baked enamel paint
Kynar paint
EAH-401
*Width and height dimensions furnished
approximately ¼ inch under size.
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 45 48 51 54 57 60
16 0.28 0.38 0.47 0.59 0.65 0.75 0.84 0.93 1.02 1.11 1.21 1.30 1.39 1.48 1.57 1.67 1.76
21 0.43 0.57 0.71 0.85 0.99 1.13 1.28 1.42 1.56 1.70 1.84 1.98 2.12 2.26 2.40 2.54 2.68
30 0.73 0.97 1.20 1.44 1.68 1.91 2.15 2.39 2.63 2.86 3.10 3.34 3.57 3.81 4.05 4.28 4.52
33 0.88 1.16 1.45 1.73 2.02 2.30 2.59 2.87 3.16 3.44 3.73 4.01 4.30 4.59 4.87 5.15 5.44
42 1.18 1.56 1.94 2.32 2.70 3.08 3.47 3.85 4.23 4.61 4.99 5.37 5.75 6.14 6.54 6.90 7.28
48 1.33 1.75 2.18 2.61 3.04 3.47 3.90 4.33 4.76 5.19 5.62 6.05 6.48 6.91 7.34 7.77 8.20
57 1.62 2.15 2.67 3.20 3.73 4.25 4.78 5.31 5.83 6.36 6.88 7.41 7.94 8.46 8.99 9.52 10.04
60 1.77 2.35 2.92 3.49 4.07 4.64 5.22 5.79 6.37 6.94 7.52 8.09 8.66 9.24 9.81 10.39 10.96
69 2.07 2.74 3.41 4.08 4.75 5.42 6.09 6.77 7.44 8.11 8.78 9.45 10.12 10.79 11.46 12.13 12.80
75 2.22 2.94 3.66 4.37 5.09 5.81 6.53 7.25 7.97 8.69 9.41 10.13 10.85 11.57 12.29 13.00 13.72
84 2.51 3.33 4.15 4.96 5.78 6.59 7.41 8.22 9.04 9.86 10.67 11.49 12.30 13.12 13.93 14.75 15.56
87 2.66 2.53 4.39 5.25 6.12 6.98 7.85 8.71 9.57 10.44 11.30 12.17 13.03 13.89 14.76 15.62 16.48
96 2.96 3.92 4.88 5.84 6.80 7.76 8.72 9.68 10.64 11.60 12.56 13.52 14.48 15.44 16.40 17.37 18.33
Louver Width in Inches
EAH-401PERFORMANCE DATA
Adjustable Louver J Blade
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
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
Greenheck Fan Corporation certifies that the EAH-401 louvers shown
herein are licensed to bear the AMCA Seal. The ratings shown are based
on tests and procedures performed in accordance with AMCA Publication
WATER
PENETRATION
511 and comply with the requirements of the AMCA Certified Ratings
AIR
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
Airflow Resistance (Standard Air - .075 lb/ft
Pa
200
100
90
80
70
60
50
40
30
20
Static Pressure Drop
10
9
8
7
6
5
ft/min:
m/s:
Program. The AMCA Certified Ratings Seal applies to air performance and
water penetration ratings.
®
3
) Water Penetration (Standard Air - .075 lb/ft3)
in. wg
1
0.9
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
200 300 400 500 600 700 800 9001000 2000 3000
3
Exhaust
Intake
2345678910
Free Air Velocity
Model EAH-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.
0.25
0.1
0.225
0.09
2
112345678910
cfm/ft
2
cmh/m
20 30 40 50 60 70 80 90 100 200
Leakage
Test size 48 in. x 48 in. Test duration of 15 min.
ml/m2
oz/ft2
0.30
Test Size 48 in. x 48 in.
80
60
40
20
Water Penetration per Unit Free Area
0
ft/min:
m/s:
Test Period 15 minutes
0.25
Standard Air - .075 lb/ft
0.20
0.15
0.10
0.05
0.00
900 950 1000 1050 1100 1150 1200
3
5.0 6.0
Free Area Velocity
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 EAH-401 is 1023 fpm free area velocity.
The beginning point of water
*
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.
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