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English 21
Installation instructions
Planning the Ductwork
WARNING
• To prevent combustion by-products, smoke, or odors from entering the home, and to
improve efficiency, tape all duct joints securely.
• Range hoods may impede proper flow of smoke and combustion gases from furnaces,
gas water heaters, and fireplaces. To avoid drawing lethal gases into the home, follow
the manufacturer’s directions for these devices and NFPA/ASHRAE recommendations.
• Failure to install a remote blower or proper ductwork may cause a backdraft and
insufficient venting of smoke/fumes.
• DO NOT add an in-line or external blower to lengthen the duct. Even small differences
between blower air-flow rates can greatly reduce the hood’s air draw.
CAUTION
To reduce risk of fire and to properly exhaust air, duct air to the outdoors only (not into
walls, a
ttics, crawlspaces, or garages).
WARNING
During duct installation, ensure the damper flaps on top of the hood can open freely.
A B
• Building codes may require makeup
air systems to be used with ventilation
systems that move air at greater than
the specified rate (CFM), which rate
depends on locale. In designing the
system, consult an HVAC specialist for
local requirements and to ensure best
performance.
• All ductwork material (incl. screws and foil tape) must be purchased by the customer.
• Ductwork must not interfere with floor joists or wall studs.
• On dual-exhaust models, the two 8” exhausts may be merged into one 10” duct using
Dacor T
ransition Kit AHT10.
• Fasten all joints with sheet-metal screws, and seal with certified duct/foil tape.
• Typically, the blower vents through the hood top (A, above); however, the blower can
be rotated to vent through the rear (B, above). When planning ductwork, always find
the shortest, most direct route to the outside.
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