Kenmore downdrafts aredesigned toperform efficiently when attached toIong runs ofduct= Asa point o freference, thishood
wiII f unction atapproximately
80% ofitsrated airflowwhen 200equivalent feetof7"round d uctwork isattached=
Use thischart
tocalculate theequivalent duct l ength o fyoursystem=
Broan Modem 401
Straight Duct
3¼qn. x lOqn. x 2-ft, long
Equivalent
length
2ft.
Broan Modem 408
Straight
Duct
8=in. round × 2-ft. long
EquivaIent length
2ft°
Broan Modem 407
Straight
Duct
7qn. round × 2-ft° long
EquivaIent
length
2ft°
Broan Modem 419
6qn. Round Elbow
EquivaIent
length
8 ft.
Broan Modem 4!5
7qn° Round Elbow
EquivaIent
length
8 ft.
Sears Model 59581
3¼=in. × lO=in° to
6qn. Round Transition
Equivalent
Iength
5.5 ft.
Broan Model 412H
3¼=in, × lO-in, to
7=inoRound
Transition
Equivalent
Iength
5.5 ft.
Broan Model 428
3¼-in, × 10-in,
Right-angme Embow
Equivalent
length
8.5 ft.
Broan _lodel 429
3¼oin, × lO-in.
Right=angle Fiat Elbow
Equivalent
Iength
24 ft.
Broan Model 430
3¼=in, × lOqn,
Right=angle
Short
Eave Embow
quivalent Iength
15ft.
Broan Model 431
3¼qn. × lO=in,
Right-angle
Long
Eave Elbow
quivaIent
length
15 ft.
_
Sears Modem 59691
64n= Round
Wall Cap
Equivalent
length
34 ft.
(6-fL w/o damper)
Broan ModeB 847
7=in° Round
Wall Cap
Equivalent
length
34 ft.
(6-fL w/o damper)
Sears Modem
59391
3¼=in° ×
lO-in,
Wamm Cap
Equivalent
length
45 ft.
(7-ft= w/o damper)
_,lodel 59091
Roof Cap
(accepts
7-in° round
or 3¼qn° × !O-in, duct)
Equivalent
length
30 ft.
(7-ft= w/o damper)
Sears Modet "Ducting
Accessories"
available
by calling Sears at
1-800-4-MY-HOME
_
Broan Model "Ducting
Accessories"
avaHabme by calling:
1=800=558=1711°
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