Greenheck FAD-635 Installation Manual
®
Fabricated Steel Adjustable Louver
Drainable Blade
Application and Design
FAD-635 is fabricated adjustable louver designed to protect
air intake and exhaust openings in building exterior walls that
requires tight air shut off. Design incorporates a drainable head
member and adjustable drainable blades to channel water to the
jambs which guides the water through vertical downspouts for
escape at the sill. The FAD-635 is an extremely efficient louver
with AMCA LICENSED PERFORMANCE DATA enabling
designers to select and apply with confidence.
Standard Construction
Frame . . . . . . . .6 in. x 16 gauge galvanized steel wall
thickness
Blades . . . . . . . .Drainable design, 16 gauge galvanized
steel wall thickness, positioned at 45º on
approximately 3.5 in. centers
Seals . . . . . . . . .Dual-durometer extruded vinyl blade seals
Compressible stainless steel jamb seals
Linkage . . . . . . .Side linkage out of airstream (concealed in
frame)
Bearings . . . . . .Synthetic sleeve type
Axles . . . . . . . . .½ in. diameter zinc plated steel
Construction . . .Mechanically fastened
Birdscreen . . . . .½ in. x ½ in. mesh 19 gauge galvanized steel in
removable frame, inside mount (rear)
Finish . . . . . . . . . Mill
Minimum Size . . 12 in. W x 11
Maximum Single
Section Size . . .60 in. W x 96 in. H
1
/
in. H
8
FAD-635
WATER
PENETRATION
AIR
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
®
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
• Security bars
• Stainless steel frame and blade
• A variety of architectural finishes including:
Baked enamel paint
Kynar paint
*Width and height dimensions furnished
approximately ¼ inch under size.
Free Area Chart (Sq. ft.)
Louver
Height
Inches
12 18 24 30 36 42 48 54 60
11 1/8 0.19 0.32 0.44 0.57 0.69 0.82 0.94 1.07 1.19
18 0.35 0.58 0.81 1.04 1.27 1.49 1.72 1.95 2.18
24 0.67 1.10 1.54 1.98 2.42 2.85 3.29 3.73 4.17
30 0.98 1.63 2.27 2.92 3.57 4.21 4.86 5.50 6.15
36 1.14 1.89 2.64 3.39 4.14 4.89 5.64 6.39 7.14
42 1.46 2.42 3.37 4.33 5.29 6.25 7.21 8.17 9.12
48 1.77 2.94 4.11 5.27 6.44 7.61 8.77 9.94 11.11
54 1.93 3.20 4.47 5.75 7.02 8.29 9.56 10.83 12.10
60 2.25 3.73 5.21 6.69 8.17 9.65 11.12 12.60 14.08
66 2.41 3.99 5.57 7.16 8.74 10.32 11.91 13.49 15.07
72 2.72 4.52 6.31 8.10 9.89 11.68 13.47 15.27 17.06
78 3.04 5.04 7.04 9.07 11.04 13.04 15.04 17.05 19.04
84 3.20 5.30 7.41 9.51 11.62 13.72 15.83 17.93 20.03
90 3.52 5.83 8.14 10.45 12.77 5.08 17.39 19.70 22.02
96 3.83 6.35 8.88 11.40 13.92 16.44 18.96 21.48 24.00
Louver Width in Inches
FAD-635PERFORMANCE DATA
Adjustable Louver Drainable Blade
Fabricated Steel
Greenheck
Fan
Corporation
certifies that
WATER
PENETRATION
AIR
PERFORMANCE
AIR
MOVEMENT
AND CONTROL
ASSOCIATION
INTERNATIONAL, INC.
licensed to bear the
AMCA Seal. The ratings
shown are based on
tests and procedures
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
and water penetration
ratings.
the FAD635 louvers
shown
®
herein are
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
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
Intake
Exhaust
2345678910
3
) Water Penetration (Standard Air - .075 lb/ft3)
Free Air Velocity
Model FAD-635 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. Test duration of 15 min.
ml/m2
oz/ft2
0.30
Test Size 48 in. x 48 in.
80
0.25
0.20
60
0.15
40
0.10
20
0.05
Water Penetration per Unit Free Area
0.00
0
ft/min:
m/s:
Test Period 15 minutes
Standard Air - .075 lb/ft
850 900 950 1000 1050 1100 1150 1200 1250 1300
800
5.0 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.
The beginning point of water penetration for Model FAD-635 is
*
959 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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