5
EQUIVALENT DUCT LENGTH CHART
Broan Model 401
Straight Duct
3¼-in. x 10-in. x 2-ft. long
Equivalent length
2 ft.
Broan Model 406
Straight Duct
6-in. round x 2-ft. long
Equivalent length
2 ft.
Broan Model 415
7-in. Round Elbow
Equivalent length
8 ft.
Sears Model 59581
3¼-in. x 10-in. to
6-in. Round Transition
Equivalent length
5.5 ft.
Broan Model 428
3¼-in. x 10-in.
Right-angle Elbow
Equivalent length
8.5 ft.
Broan Model 429
3¼-in. x 10-in.
Right-angle Flat Elbow
Equivalent length
24 ft.
Broan Model 430
3¼-in. x 10-in.
Right-angle
Short
Eave Elbow
Equivalent length
15 ft.
Broan Model 431
3¼-in. x 10-in.
Right-angle
Long
Eave Elbow
Equivalent length
15 ft.
Sears Model 59691
6-in. Round
Wall Cap
Equivalent length
34 ft.
(6-ft. w/o damper)
Sears Model
59391
3¼-in. x
10-in.
Wall Cap
Equivalent
length
45 ft.
(7-ft. w/o damper)
Sears
Model 59091
Roof Cap
(accepts 7-in. round
or 3¼-in. x 10-in. duct)
Equivalent length
30 ft.
(7-ft. w/o damper)
W
arr
anty
Safety
Cleaning
Oper
ation
Installa
tion
Ser
vice P
ar
ts
Kenmore downdrafts are designed to perform efficiently when attached to long runs of duct. As a point of reference, this hood will func-
tion at approximately 80% of its rated air flow when 200 equivalent feet of 7" round ductwork is attached. Use this chart to calculate the
equivalent duct length of your system.
Broan Model 407
Straight Duct
7-in. round x 2-ft. long
Equivalent length
2 ft.
Broan Model 419
6-in. Round Elbow
Equivalent length
8 ft.
Broan Model 412H
3¼-in. x 10-in. to
7-in. Round
Transition
Equivalent length
5.5 ft.
Broan Model 647
7-in. Round
Wall Cap
Equivalent length
34 ft.
(6-ft. w/o damper)
Sears Model “Ducting Accessories” available by calling Sears at
1-800-4-MY-HOME
®
Broan Model “Ducting Accessories” available by calling:
1-800-558-1711.
Summary of Contents for 233.5996 Series
Page 23: ...23 ...
