Page 1
Acoustical Louver
J Blade
Application and Design
AFJ-120 is an acoustical weather louver designed to protect air intake
and exhaust openings in building exterior walls. Design incorporates
J style insulated acoustical blades and high free area to provide
maximum resistance to sound transmission, rain and weather while
providing minimum resistance to airflow. The AFJ-120 is an extremely
efficient louver with AMCA LICENSED PERFORMANCE DATA
enabling designers to select and apply with confidence.
Standard Construction
Frame � � � � � � � �Heavy gauge formed aluminum,
12 in. x 0.080 in. nominal wall thickness
Blades � � � � � � � �J style, heavy gauge formed aluminum,
0.080 in. nominal wall thickness, positioned
at 45º on approximately 5 in. centers
Construction . . .Mechanically fastened
Acoustical
Insulation � � � � � Fiberglass Insulation
Birdscreen � � � � �3/4 in. x 0.051 flattened expanded aluminum in
removable frame, inside mount (rear)
Finish � � � � � � � � � Mill
Minimum Size � �12 in. W x 19 in. H
Maximum Single
Section Size � � � 60 in. W x 120 in. H
AFJ-120
Options (at additional cost)
• A variety of bird and insect screens
• Blank off panels
• Clip angles
• Extended sill
• Filter racks
• Flanged frame
• Galvanized steel frame and blade
• 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.
Page 2
Pa
in. wg
Static Pressure Drop
Free Area Chart (Sq. ft.)
Water Penetration per Unit Free Area
Louver
Height
Inches
12 18 24 30 36 42 48 54 60
19 0.12 0.21 0.29 0.37 0.45 0.53 0.61 0.69 0.77
24 0.25 0.41 0.57 0.74 0.90 1.06 1.22 1.38 1.55
30 0.37 0.62 0.86 1.10 1.35 1.59 1.83 2.08 2.32
36 0.50 0.82 1.15 1.47 1.80 2.12 2.44 2.77 3.09
42 0.62 1.03 1.43 1.84 2.24 2.65 3.05 3.46 3.86
48 0.75 1.24 1.72 2.21 2.69 3.18 3.67 4.15 4.64
54 1.00 1.65 2.30 2.94 3.59 4.24 4.89 5.54 6.18
60 1.12 1.85 2.58 3.31 4.04 4.77 5.50 6.23 6.96
66 1.25 2.06 2.87 3.68 4.49 5.30 6.11 6.92 7.73
72 1.37 2.26 3.16 4.05 4.94 5.83 6.72 7.61 8.50
78 1.50 2.47 3.44 4.41 5.39 6.36 7.33 8.30 9.27
84 1.75 2.88 4.02 5.15 6.28 7.42 8.55 9.69 10.82
90 1.87 3.09 4.30 5.52 6.73 7.95 9.16 10.38 11.59
96 2.00 3.29 4.59 5.89 7.18 8.48 9.77 11.07 12.37
102 2.12 3.50 4.88 6.25 7.63 9.01 10.38 11.76 13.14
108 2.25 3.71 5.16 6.62 8.08 9.54 11.00 12.45 13.91
114 2.50 4.12 5.74 7.36 8.98 10.60 12.22 13.84 15.46
120 2.62 4.32 6.02 7.73 9.43 11.13 12.83 14.53 16.23
Louver Width Inches
Airflow Resistance (Standard Air - �075 lb/ft
AFJ-120PERFORMANCE DATA
J Blade Acoustical Louver
Formed Aluminum
Greenheck Fan Corporation certifies that the AFJ-120
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 511 and
comply with the requirements of the AMCA Certified Ratings
Program. The AMCA Certified Ratings Seal applies to water
penetration, air performance and sound ratings.
Sound Transmission Class
The Sound Transmission Class (STC) is a rating of the effectiveness of
an assembly in isolating or reducing airborne sound transmission. STC is
a single number that summarizes airborne sound transmission loss data.
Assemblies with higher STC ratings are more efficient at reducing sound
transmission. STC is determined in accordance with ASTM E413-04.
Transmission Loss
Transmission loss (TL) is a measurement of the reduction of sound power
transmission (dB) through an assembly at a given frequency. The more
sound power that is reduced, the greater the TL. TL is tested in accordance
with ASTM E90-04.
Free Field Noise Reduction in Decibels
Free Field Noise Reduction is determined by adding 6 dB to the Transmission Loss.
Octave Band 2 3 4 5 6 7 STC
Frequency (Hz) 125 250 500 1000 2000 4000
Transmission Loss (dB) 7 6 11 19 30 19
Free Field Noise Reduction (dB) 13 12 17 25 36 25
3
)
16
1
0.9
200
100
90
80
70
60
50
40
30
0.09
20
0.08
0.07
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 9001000 2000 3000
3
Exhaust
Intake
2345678910
Free Air Velocity
Model AFJ-120 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.
Water Penetration (Standard Air - �075 lb/ft
3
)
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
0.00
0
ft/min:
m/s:
Test Period 15 minutes
Standard Air - .075 lb/ft
900 950 1000 1050 1100
5.0 5.5
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 AFJ-120 is
*
961 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.
Page 3
AFJ-120INSTALLATION DETAILS
Maximum Size and Installation Information
Maximum single section size for model AFJ-120 is 60 in� W x 120 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�
J Blade Acoustical Louver
Formed Aluminum
Minimum Single Section Size
12 in� W x 19 in� H
Maximum Single Section Size
60 in� W x 120 in� H
Page 4
AFJ-120PRODUCT DETAILS
J Blade Acoustical Louver
Formed Aluminum
Page 5
AFJ-120OPTION DRAWINGS
J Blade Acoustical Louver
Formed 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 © 2010 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
AFJ-120
August 2010 Rev� 2
Greenheck Fan Corporation reserves the right
to make product changes without notice�
Loading...