Severe Duty Louvers

FOR BEST IN CLASS
PERFORMANCE…
To win customers in
today’s competitive
market, it is critical
that companies deliver
superior products.
Pottorff’s AMCA rated
louvers consistently
meet and beat
the competition.
EDD-637
Pottorff certifies that Model EDD-637 and ECD-545 are licensed to bear the AMCA Seal. The
ratings shown are based on tests and procedures performed in accordance with AMCA 511
and comply with the requirements of the AMCA Certified Ratings Program. The AMCA Seal for
EDD-637 applies to air performance and water penetration only. Test size 48" x 48", 15 minute
test duration (for water penetration), EDD-637 July, 2012. The AMCA Seal for ECD-545 applies
to air performance, water penetration and wind-driven rain only. Test size 48" x 48", 15 minute
test duration (for water penetration), ECD-545 January, 2012.
ECD-545
XSV-845
Pottorff is a leading manufacturer of louvers and
dampers with over 80 years of experience in the
industry. We are a contributing member of the Air
Movement and Control Association International Inc.
Pottorff certifies that Model XSV-845 is licensed to bear the AMCA Seal. The ratings shown
are based on tests and procedures performed in accordance with AMCA 511 and comply
with the requirements of the AMCA Certified Ratings Program. The AMCA Seal applies to air
performance only. XSV-845, March 2013.
Visit www.pottorff.com for more information.
EDD-637 • ECD-545 • XSV-845 Data Sheet
BEST IN CLASS
BEST IN CLASS
EDD-637
Free Area Performance.
Our EDD-637 dual-drainable, 6" louver features
57.5% free area and a beginning point of water
penetration of 1,113 fpm with pressure loss of
only 0.15 in.wg.
model EDD-637
extruded aluminum louver
6" deep • 37-1/2°
dual-drainable blade
BEST IN CLASS
ECD-545
Wind-Driven Rain Protection.
Our ECD-545 horizontal blade, 5" wind-driven rain
louver has a Class A rating at a core velocity of 886
fpm for 29 mph, 3 in/hr simulated AMCA Wind-Driven
Rain test. That is the best rating in the industry for any
horizontal blade louver.
model ECD-545
extruded aluminum louver
5" deep • 45°
horizontal drainable blade
XSV-845
Pressure Loss and Free Area.
Our 8" XSV-845 steel grille is designed to be FEMA 320
or 361 rated for storm shelters and safe rooms. This
model can withstand design loads of 260 PSF to 300
PSF. It features the largest free area in the industry at
58.5% and the lowest certified pressure loss of only
0.15 in. wg. at 7100 cfm.
model XSV-845
steel grille
8" deep • inverted v blade
Application
The ECD-545 offers exceptional protection against
wind-driven rain under the most severe conditions and is
ideally suited for high wind areas or applications that are
sensitive to wind-driven rain penetration. The ECD-545
incorporates horizontal blades and is available in a wide
array of anodized and painted finishes including custom
color matching.
Application
Ratings
Ratings
Ratings
Free Area: [48" X 48" (1222 X 1222) unit]: 9.2 ft2 (0.85 m2)
57.5%
Free Area: [48" X 48" (1222 X 1222) unit]: 7.4 ft (0.69 m )
46.3%
Free Area: [48" X 48" (1222 X 1222) unit]: 9.4 ft2 (0.88 m2)
58.5%
Performance @ Beginning Point of Water Penetration
Performance @ Beginning Point of Water Penetration
Velocity @ 0.15 in.wg. Pressure Loss: 755 fpm (3.84 m/s)
Free Area Velocity: 1113 fpm (5.65 m/s)
Free Area Velocity: Above 1250 fpm (6.35 m/s)
Std. Design Load: 290 psf for 60" X 90" (1524 X 2286) and
Air Volume Delivered: 10,242 cfm (4.83 m3/s)
Air Volume Delivered: Above 9250 cfm (4.37 m3/s)
54" X 96" (1372 X 2438) top and bottom mounted units. 260 psf
Pressure Loss: 0.15 in.wg. (37 Pa)
Pressure Loss: 0.24 in.wg. (60 Pa)
for 60" X 96" (1524 X 2438) top and bottom mounted units.
Velocity @ 0.15 in.wg. Pressure Loss: 1106 fpm (5.62 m/s)
Velocity @ 0.15 in.wg. Pressure Loss: 980 fpm (4.99 m/s)
Up to 300 psf for all jamb mounted units.
Std. Design Load: 25 psf
Florida Building Code Approval (2007-FBC): No. FL13619.1
Application
The EDD-637 dual-drainable blade louver is designed to
prevent water penetration in non-wind-driven rain
applications by collecting water in frame and blade
gutters and channeling it into downspouts and away from
airflow paths.
2
2
The XSV-845 can be mounted on the exterior of the wall
or slip into the opening and still provide required
protection. It is usually installed in front of another louver
or damper that provides additional water penetration
protection if required. The XSV-845 incorporates
horizontal inverted V steel blades and is available in a
wide array of painted finishes.
Design Load: up to 187 psf - refer to FBC Installation Instructions
Note: Dimensions in parenthesis are in millimeters
for size and design load rating.
Std. Design Load: 30 psf
As well as superior performance, quality products,
innovative solutions, and unparalleled service are
what differentiate Pottorff among the competition.
The XSV-845 has been tested with impacts of
15lb-2" X 4"s traveling at 100 MPH as per ICC 500. This
makes the XSV-845 compliant for wind borne debris in all
regions of the United States.