Carnes FRWB User Manual

Specification Sheet

Model FRWB Channel Frame, FSWB Flanged Frame

Extruded Aluminum Wind Driven Rain Louver

CARNES COMPANY 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: [phone] Fax: [phone] www.carnes.com

COPYRIGHT © 2008 CARNES COMPANY

ALL RIGHTS RESERVED

SUPERSEDES 17141 17141-A, pg 1

Tag Qty.

Size

Frame Variations

Width Height

Project Location
Arch./Engr. Contractor
Representative Date

Model FRWB
Standard Specifications

Frame: .081 extruded aluminum 5” deep
Blades: .081 extruded aluminum on approximately 2.125” centers
Screen: 3/4” x .051 flattened aluminum in removable frame.

Screen is mounted as standard on inside (rear) as looking from
exterior of building.

Finish: mill aluminum (standard)
Maximum Panel Size: 120”w x 84”h x 84”w x 120”h
Minimum Panel Size: 12”w x 12”h

Note: Drainable blade louvers should be limited to 10’ maximum

section widths (no more that 10’ between vertical downspouts) to
enable the drainable design to function effectively.

Options (at additional cost)

- Filter Racks

- Security Bars

- Special Shapes

- Variety of Screens

- Sub-Frames

- Selection of finishes; prime coat, kynar, baked enamel, clear and
color anodize, epoxy and heresite.

Consult Carnes for other special requirements.

Flanged Frame

Optional

Extended Sill

Optional

5.1”

“H”

1.5”

*W

*H

2.125”

Section View

17141-A, pg 2

The Carnes Company
certifies that the model
FRWB/FSWB louver
shown herein is
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 require-

ments of the AMCA
Certified Ratings Program. The AMCA
Certified Ratings Seal applies to air perform­ance, water penetration and wind driven rain.

Specification

Furnish and install louver as hereinafter specified where shown on
plans or as described in schedules. Louver shall be stationary type
with horizontal rain resistant style blades positioned on approxi­mately 2.125” centers within 5” deep frame. Louver frame and
blade materials to be .081” thick 6063-T5 extruded aluminum.
Sections up to maximum of 120”w x 84”h or 84”w x 120”h shall
withstand wind loading of 30 lbs/sq.ft. (110 mph wind equivalent).
Consult factory for welded construction and higher wind speeds.

Louver shall have a min free area of 7.74 sq.ft. based on the
standard 48”w x 48”h test specimen. Louver shall have a max
static pressure drop of 0.25” (exhaust) and 0.32” (intake) water
gauge based on 1000 FPM free area intake velocity. Louver shall
carry a Class B water penetration classification based on a
ventilation core of 499 FPM at a rainfall rate of 8” per hour and a
50 mph simulated wind velocity.

FREE AREA VELOCITY (ft/min)

Based on standard air -.075 lbs per cu ft
Ratings do not include the effects of a wire birdscreen
Tested on a 48" x 48"

200 mm/h (8 in/h) Rainfall &

32 m/s (50 mph) Wind Velocity

Ventilation Air Core Water Penetration *Water Penetration

Velocity m/s (fpm) Effectiveness % Classification

0.0 (0) 98.3 B

0.49 (96) 98.0 B

1.10 (217) 97.0 B

1.47 (289) 97.0 B

1.92 (378) 96.3 B

2.53 (499) 95.3 B

2.89 (570) 94.2 C

3.43 (676) 88.9 C

3.89 (766) 85.2 C

* AMCA Classes for maximum allowable water penetrations

* Discharge Loss Intake

Wind Velocity (mph) Class

29 3
50 3

Class Discharge Loss Coefficient

1 0.4 and above
2 0.3 to 0.399
3 0.2 to 0.299
4 .0199 and below

* Discharge loss coefficient is the theoretical
air flow of an opening divided by the actual
flow rate of a louver the same size.

(the higher the coefficient, the less resistance to airflow)

Wind Driven Rain Penetration Classes

Class Effectiveness

A 1 to 0.99
B 0.989 to 0.95
C 0.949 to 0.80
D Below 0.8

Wind Driven Rain Performance

AMCA 500-L

Test Size 1m x 1m (39” x 39”) core

41-1/2”w x 41”h Nominal (1.05m x 1.04m)

Beginning point of WATER PENETRATION lies
above 1250 fpm the maximum recommended
FREE AREA VELOCITY

Pressure Drop

Static Pressure Drop (inches w.g.)