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— 10 —
IMPORTANT:
•
A minimum of 6 in. (15.3 cm) round or 3-1/4 × 10 in.
(8.3 cm
× 25.4 cm)
rectangular duct (purchased separately) must be
used to maintain maximum airflow efficiency.
•Alwaysuserigidtypemetal/aluminumductsifavailableto
maximizeairflowwhenconnectingtoprovidedduct.
•PleaseuseDuctRunCalculationbelowtocompute
total available duct run when using elbows, transitions
and caps.
•ALWAYS,whenpossible,reducethenumberor
transitions and turns. If long duct run is required,
increaseductsizefrom6in.(15.3cm)to7in.(17.7
cm) or 8 in. (20.3 cm). If a reducer is used, install a
long reducer instead of a pancake reducer. Reducing
ductsizewillrestrictairflowanddecreaseairflow,thus
reduceductsizeasfarawayfromopeningaspossible.
•Ifturnsortransitionsarerequired,installasfaraway
from opening and as far apart, between two (2), as
possible.
•Minimummountheightbetweenstovetoptohood
bottom should be no less than 24-inch (61 cm) for
electric cook tops and minimum of 30-inch (76.2 cm)
for gas stove tops and no higher than 30-inch (76.2 cm)
for electric cook tops.
•Itisimportanttoinstallthehoodatthepropermounting
height. Hoods mounted too low could result in heat
damageandfirehazard;whilehoodsmountedtoohigh
may be hard to reach and will lose its performance and
efficiency.
•Ifavailable,alsorefertostovetopmanufacturer’s
height clearance requirements and recommended
hood mounting height above range.
Installation
•This range hood is factory set for venting through the roof or wall.
•Ventworkcanterminateeitherthroughtherooforwall.Toventthroughawall,a90°elbowisneeded.
IMPORTANT:
•NEVER exhaust air or terminate duct work into spaces between walls, crawl spaces, ceiling, attics or
garages. All exhaust must be ducted to the outside.
•Use metal/aluminum duct work only.
•Fasten all connections with sheet metal screws and tape all joints with certied Silver Tape or Duct Tape.
•Use caulking to seal exterior wall or roof opening around the cap.
TOP VENTING ROOF EXHAUSTTOP VENTING WALL EXHAUST
Side wall
cap
Roof cap
Duct Run
Calculation
example:
One roof cap, two
90º elbows, and
one 45º elbow use.
0ft + 9ft + 9ft + 5ft
= 23ft used.
Deduct 23ft from
30ft, 7ft maximum
available for
straight duct run.
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