model EFD-637-MD-PH

Application
The EFD-637-MD-PH extruded aluminum penthouse is
engineered and tested to withstand extreme loads, debris
impact and cyclic failure associated with the severe weather
effects of hurricanes (Miami-Dade County approval #050725.05). Designed for intake and exhaust applications, the
EFD-637-MD-PH frequently serves as a gravity ventilator, fan
discharge cap, fresh air intake cap, sight shield or pressure relief
ventilator.
Standard Construction
Material: Mill finish 6063-T5 extruded aluminum.
model EFD-637-MD-PH
extruded aluminum penthouse
6" deep • 371/2° horizontal blade
Miami Dade County Approved -
Ratings
Louver Free Area (per side):
[48" ¥ 48" (1222 ¥ 1222) unit]: 9.5 ft2 (0.88 m2)
59.4%
Performance @ Beginning Point of Water Penetration
Free Area Velocity:
990 fpm (5.03 m/s)
Air Volume Delivered: 9,405 cfm (4.44 m3/s)
Pressure Loss:
0.11 in.wg. (27 Pa)
Velocity @ 0.15 in.wg. Pressure Loss: 1150 fpm (5.84 m/s)
Miami Dade County: NOA No. 11-0119.23 (Expires 12/29/2015)
Approved to FBC TAS202-94, TAS201-94, and
TAS-203-94.
Frame: 6" deep ¥ 0.125" thick (152 ¥ 3.2) channel.
Blades: 371/2° ¥ 0.081" (2.0) thick horizontal style.
Corner: Boxed.
Roof: 2" (51) thick, expanded foam board laminated and sandwiched between double skins of 0.081" (2) thick aluminum —
raised seam type.
Florida Building Code Approval: No. FL12655
Design Load: 80 psf
Screen: 1/2" ¥ 0.063" (12.7 ¥ 1.6) expanded and flattened
aluminum.
Mullion: Visible.
Minimum Size: 12" ¥ 12" (305 ¥ 305), 12" (305) high
Maximum Size: Factory assembled: 100" ¥ 88" (2540 ¥ 2235)
Maximum height:
60" (1524)
H
Options
H
o Factory finish:
o High Performance Fluoropolymer - 100% resin Newlar®/
70% resin Kynar®
o Baked Enamel
o Clear or Color Anodized, Class 1
o Prime Coat
Side 2
o Hinged Roof.
Side 1
o Alternate bird or insect screens.
Model EFD-637-MD-PH
(standard)
o Insulated or non-insulated blank-off panels.
o Sill flashing.
Side 2
Dimension of
Base Angle
(Curb I.D.
Inside to Inside)
H
Overall Width
[Curb I.D. + 16-1/2" (419)]
Side 1
Louver Dimension
[Curb I.D. + 4" (102)]
D
Side 2
Extruded Aluminum Penthouse EFD637-MD-PH July 2014
o Filter racks.
2" (51)
Base Angle
2" (51)
Base Angle
Side 1
Dimension of Base Angle
(Curb I.D. Inside to Inside)
Overall Width
[Curb I.D. + 16-1/2" (419)]
Overall Width
[Curb I.D. + 16-1/2" (419)]
Louver Dimension
[Curb I.D. + 4" (102)]
Side View
Louver Dimension
[Curb I.D. + 4" (102)]
Section View
Note: EFD-637-MD-PH must be installed in accordance with specific installation instructions - contact factory for details.
Information is subject to change without notice or obligation.
POTTORFF ®
5101 Blue Mound Road, Fort Worth, Texas 76106
NOTE: Dimensions in parentheses ( ) are millimeters.
www.pottorff.com

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