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Ancona AN1278 30 Inch Stainless Steel Ducted Canopy Pro Style Under Cabinet Hood

User Manual - Page 10

For AN1278.

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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 must be used to maintain
maximum airflow efficiency.
•Alwaysuserigidtypemetal/aluminumductsifavailableto
maximize airflow when connecting to provided duct.
•PleaseuseDuctRunCalculationbelowtocompute
total available duct run when using elbows, transitions
and caps.
•ALWAYS,whenpossible,reducethenumberor
transitions and turns. If long duct run is required,
increase duct size from 6 in. (15.3 cm) to 7 in. (17.7
cm) or 8 in. (20.3 cm). If a reducer is used, install a
long reducer instead of a pancake reducer. Reducing
duct size will restrict airflow and decrease airflow, thus
reduce duct size as far away from opening as possible.
•Ifturnsortransitionsarerequired,installasfaraway
from opening and as far apart, between two (2), as
possible.
•Minimummountheightbetweenstovetoptohood
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.
•Itisimportanttoinstallthehoodatthepropermounting
height. Hoods mounted too low could result in heat
damage and fire hazard; while hoods mounted too high
may be hard to reach and will lose its performance and
efficiency.
•Ifavailable,alsorefertostovetopmanufacturer’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.
•Ventworkcanterminateeitherthroughtherooforwall.Toventthroughawall,a90°elbowisneeded.
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 certied Silver Tape or Duct Tape.
•Use caulking to seal exterior wall or roof opening around the 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.
TOP VENTING
ROOF EXHAUST
TOP VENTING
WALL EXHAUST
REAR VENTING
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