Code No. LIT-1900821
Issued July 15, 2013
AL3 and AL6 Airflow Measuring Stationary Louvers
Description
Since 1905, Johnson Controls has developed and refined air control
products by providing the highest quality control dampers that fit your
application and size requirements. Now we are including airflow
measuring louvers in our product offering:
•
AL3 airflow measuring louvers feature stationary aluminum blades
with aluminum sensor blades in a 3 in. (7.5 cm) deep aluminum
frame.
• AL6 airflow measuring louvers feature stationary aluminum blades
with aluminum sensor blades in a 6 in. (15 cm) deep aluminum
frame.
Refer to the AL3 and AL6 Airflow Measuring Stationary Louvers
Product Bulletin (LIT-12011834) for important product information.
Features and Benefits
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•
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Three-year warranty on materials and workmanship provides
confidence in product and reliability.
Extruded 60635 T5 aluminum construction offers the optimal
balance of strength, durability and cost-effectiveness; resists
corrosion while requiring little maintenance.
Pressure transducer provided (shipped loose) matches components
for effective application.
Excellent pressure drop performance allows maximum air
penetration while keeping water out.
Closely spaced vertical blades prevent the penetration of winddriven rain, reducing damage and additional operating expenses.
AML3 Airflow Measuring Louver
Transducer shall be capable of using field-selectable pressure ranges
of 0 to 0.1, 0 to 0.25, 0 to 0 0.50, 0 to 1, and 0 to 2.5 in. W.C. with
accuracy within ± 0.5 in. W.C. (±12.5 Pa) and shall handle up to
10 PSID overpressure without zero shift.
Transducer output to be field-selectable: 4 to 20 mA 2-wire, 0 to 5 VDC,
or 0 to 10 VDC.
Transducer shall incorporate glass-on-silicone (Gi-Si) capacitance
sensor and shall be housed in a NEMA 4 enclosure.
Application
The patented AL3 airflow measuring louver combines the functions of
an outside air intake louver and an airflow measuring station in one
assembly. Its 4 in. (102 mm) nominal depth requires less installation
space than separate louvers and air measurement devices. The AL3
features a wind-driven-rain-resistant louver that allows high airflow with
minimal water penetration and pressure drop. It is particularly well
suited for applications in air handling units as well as air plenum wall
installations.
The AL6 airflow measuring louver combines the functions of an outside
air intake louver and an airflow measuring station in one assembly. Its
7 in. (178 mm) nominal depth requires less installation space than
separate louvers and air measurement devices. The AL6 features a
wind-driven-rain-resistant louver that allows high airflow with minimal
water penetration and pressure drop. It is particularly well suited for
applications in air handling units as well as air plenum wall installations.
The AL6 has been tested to Air Movement and Control Association
International, Inc. (AMCA) Standard 611-95.
Louver sizes too large for shipping shall be built up by the contractor
from factory-assembled louver sections to provide overall sizes
required.
Louver design shall limit sizes of shipped single sections to 48 x 96 in.
(1,219 x 2,438 mm) and shall withstand a wind load of 20 lb per sq. ft.
(0.96 kPa) (equivalent of a 90 mph [145 kph] wind - specifier may
substitute any loading required).
Louver shall have extruded 6063T5 aluminum alloy construction.
Construction
Part
AL3
AL6
Frame1
0.062 in. (1.6 mm) wall
thickness
0.125 in. (3.2 mm) wall
thickness
Blade
0.040 in. (1 mm) wall
thickness, installed vertically
on approximately 0.75 in.
(19 mm) centers
0.081 in. (2.1 mm) wall
thickness, installed vertically
on approximately 1.5 in.
(38 mm) centers
1. Caulking surfaces provided
Sample Specifications (AL3 Louver)
Furnish and install louvers as hereinafter specified where shown on
plans or as described in schedules.
Louvers shall possess stationary vertical blades designed to prevent
the penetration of wind-driven rain.
Louver blades shall be contained within a 3 in. (76 mm) or 6 in. (152
mm) frame.
Louver components (heads, jambs, sill and blades) shall be factory
assembled by the louver manufacturer.
Louvers shall be provided with a pressure transducer conforming to
Electromagnetic Compatibility (EMC) standards EN50082-1/EN5014/
EN60730-1.
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
www.johnsoncontrols.com
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2013 Johnson Controls, Inc.
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AL3 and AL6 Airflow Measuring Stationary Louvers (Continued)
Technical Specifications
Specification
AL3
AL6
Frame
3 in. (76 mm) deep, 6063T5 extruded aluminum with 0.062 in.
(1.6 mm) nominal wall thickness
6 in. (152 mm) deep, 6063T5 extruded aluminum with 0.125 in.
(3.2 mm) nominal wall thickness
Airflow Measurement Pickups adds 1 in. (25.4 mm) depth to the louver’s frame
Blades1
6063T5 extruded aluminum with 0.040 in. (1 mm) nominal wall
thickness.
6063T5 extruded aluminum with 0.081 in. (2.1 mm) nominal
wall thickness.
Sensor Blade
6063T5 extruded aluminum, clear anodized finish
Sensor Port Fittings
brass
Pressure Transducer
DMPR-RA001, 4 to 20 mA 2-wire, 0 to 5 VDC, or 0 to 10 VDC output (field selectable). Output signal is proportional to CFM.
Extended Sill
0.081 in. (2.1 mm) formed aluminum with end dams
Finish
Mill
Minimum Size
12 in. w x 12 in. h (305 mm x 305 mm).
Maximum Size
48 in. w x 72 in. h (1,219 mm x 1,829 mm).
Maximum ship section size is 48 in. w x 96 in. h (1,219 mm X
2,438 mm).
Lifting lugs provided on louvers 48 in. x 72 in. and larger.
Louvers larger than the maximum factory assembly size require
field assembly of smaller sections.
48 in. w x 72 in. h (1,219 mm X 1,829 mm).
Maximum ship section size is 72 in. w x 72 in. h (1,829 mm X
1,829 mm).
Lifting lugs provided on louvers 48 in. x 72 in. and larger.
Louvers larger than the maximum factory assembly size require
field assembly of smaller sections.
Free Area Velocity
Requirements
Minimum 275 FPM (1.4 m/s)
Maximum 2,024 FPM (10.28 m/s)
Minimum 345 FPM (1.8 m/s)
Maximum 2,175 FPM (11.05 m/s)
Approximate Shipping Weight 5 lb/sq. ft. (24 kg/m2)
12 lb/sq. ft. (58.6 kg/m2).
Operating Temperature
-22 to 150ºF (-30 to 60ºC)
-22 to 150ºF (-30 to 60ºC)
1. Blades are mounted vertically and spaced approximately 1-1/2 in. (38 mm) center to center.
Selection
Airflow Measuring Louver Ordering Information
Product
Description
AFEDN
AL3 Louver
AFEFN
AL6 Louver
Repair Information
If an AL3 or AL6 airflow measuring louver fails to operate within its
specifications, replace the unit. For a replacement AL3 or AL6 airflow
measuring louver, contact the nearest Johnson Controls®
representative.
All Johnson Controls® AL3 or AL6 airflow measuring louvers are built
to order and cannot be returned due to ordering errors. All AL3 or AL6
airflow measuring louvers are backed by a 3-year warranty, which
covers defects in materials or workmanship. Refer to terms and
conditions of sale for specifics.
The performance specifications are nominal and conform to acceptable industry standards. For applications at conditions beyond these specifications, consult the local Johnson Controls office.
www.johnsoncontrols.com
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2013 Johnson Controls, Inc.
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