EAH-690
Adjustable Louver
J Blade
Application and Design
EAH-690 is an adjustable louver designed to protect air intake and
exhaust openings in building exterior walls that require tight air shut
off. Design incorporates a drainable head member and adjustable
J style blades with a choice of full open blade angles. Blades can
either be specified with blades rotating from 0º to 90º or 0º to
45º. The EAH-690 is an AMCA CERTIFIED LOUVER enabling
designers to select and apply with confidence.
Standard Construction
Frame . . . . . . . .Heavy gauge extruded 6063-T5 aluminum,
6 in. x 0.125 in. nominal wall thickness
Blades . . . . . . . .J style, heavy gauge extruded 6063-T5 aluminum,
0.081 in. nominal wall thickness, positioned at 45º
or 90º angles on approximately 4 in. centers
Seals . . . . . . . . .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 16 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-690
*Width and height dimensions furnished
approximately ¼ inch under size.
AIR
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
®
Free Area Chart (Sq. ft.)
Louver
Louver Width in Inches
45º open 90º open
Height
Inches
12 18 24 30 36 42 48 54 60
16 0.15 0.25 0.35 0.45 0.55 0.65 0.75 0.85 0.95
18 0.30 0.49 0.68 0.87 1.06 1.25 1.44 1.64 1.83
24 0.44 0.72 1.01 1.29 1.57 1.86 2.14 2.42 2.71
30 0.72 1.19 1.66 2.13 2.60 3.07 3.53 4.00 4.47
36 0.86 1.43 1.99 2.55 3.11 3.67 4.23 4.79 5.35
42 1.01 1.66 2.31 2.97 3.62 4.27 4.93 5.58 6.23
48 1.29 2.13 2.97 3.81 4.64 5.48 6.32 7.16 8.00
54 1.43 2.36 3.30 4.23 5.16 6.09 7.02 7.95 8.88
60 1.58 2.60 3.62 4.65 5.67 6.69 7.71 8.74 9.76
66 1.86 3.07 4.28 5.48 6.69 7.90 9.11 10.31 11.52
72 2.00 3.30 4.60 5.90 7.20 8.50 9.80 11.10 12.40
78 2.15 3.54 4.93 6.32 7.72 9.11 10.50 11.89 13.28
84 2.43 4.01 5.59 7.17 8.74 10.31 11.89 13.47 15.05
90 2.57 4.24 5.91 7.58 9.25 10.92 12.59 14.26 15.93
96 2.72 4.48 6.24 8.00 9.76 11.53 13.29 15.05 16.81
Greenheck Fan Corporation certifies that the EAH-690 louvers shown herein are
licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures
AIR
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
performed in accordance with AMCA Publication 511 and comply with the requirements
of the AMCA Certified Ratings Program. The AMCA Certified Ratings Seal applies to air
performance ratings. The AMCA Certified Ratings Seal applies to the 90º blade angle only.
®
EAH-690PERFORMANCE DATA
Adjustable Louver J Blade
Extruded Aluminum
Louver
Height
Inches
12 18 24 30 36 42 48 54 60
16 0.26 0.43 0.60 0.76 0.93 1.10 1.27 1.44 1.61
18 0.50 0.83 1.16 1.49 1.82 2.14 2.47 2.80 3.13
24 0.75 1.24 1.72 2.21 2.70 3.18 3.67 4.16 4.64
30 1.24 2.05 2.85 3.66 4.46 5.27 6.07 6.88 7.68
36 1.49 2.45 3.41 4.38 5.34 6.31 7.27 8.24 9.20
42 1.73 2.86 3.98 5.10 6.23 7.35 8.47 9.60 10.72
48 2.22 3.66 5.11 6.55 7.99 9.43 10.87 12.31 13.76
54 2.47 4.07 5.67 7.27 8.87 1.47 12.07 13.67 15.28
60 2.71 4.47 6.23 7.99 9.75 11.51 13.27 15.03 16.79
66 3.20 5.28 7.36 9.44 11.52 13.60 15.67 17.75 19.83
72 3.45 5.69 7.92 10.16 12.40 14.64 16.87 19.11 21.35
78 3.69 6.09 8.49 10.89 13.28 15.68 18.08 20.47 22.87
84 4.19 6.90 9.62 12.33 15.05 17.76 20.48 23.19 25.91
90 4.43 7.31 10.18 13.05 15.93 18.80 21.68 24.55 27.42
96 4.68 7.71 10.74 13.78 16.81 19.84 22.88 25.91 28.94
Louver Width in Inches
Airflow Resistance (Standard Air - .075 lb/ft
Pa
in. wg
1
0.9
200
100
90
80
70
60
50
40
30
0.09
20
0.08
0.07
Static Pressure Drop
0.06
0.05
10
0.04
9
8
0.03
7
6
5
0.02
ft/min:
m/s:
Test Size 48 in. x 48 in.
0.8
Standard Air - .075 lb/ft
Standard Air - .075 lb/ft
0.7
0.6
0.5
0.4
0.3
0.2
0.1
200 300 400 500 600 700 800 900 1000 2000 3000
3
Exhaust
2345678910
Intake
45 DEG
90 DEG
45 DEG
Intake
Exhaust
3
) Water Penetration (Standard Air - .075 lb/ft3)
90 DEG
Free Air Velocity
Model EAH-690 resistance to airflow (pressure drop) varies
depending on louver application (air intake or air exhaust)
and blade position (either 45º or 90º blade angle). 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. Test duration of 15 min.
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
1000 1050 1100 1150 1200 1250 1300
5.5 6.0
3
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-690 with blade angle at 45º is
The beginning point of water
*
1069 fpm free area velocity (blade angle at 90º is 618 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.
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