If the new dryer is installed into an existing exhaust system you must make sure:
•
The exhaust system meets all local, state, and national codes.
•
That a flexible plastic duct is not used.
•
To inspect and clean all lint buildup from inside the existing duct.
•
The duct is not dented or crushed.
•
The exhaust hood damper opens and closes freely.
•
The static pressure in any exhaust system must not exceed 0.83 inches of water column, or be less than 0.
•
This can be measured with the dryer running with a manometer at the point where the exhaust duct
connects to the dryer. A no-heat setting should be used. The dryer tumbler should be empty and the lint filter
clean.
Exhausting
The dryer shall not be exhausted into a chimney, a wall, a ceiling, an attic, a crawl space, or a concealed space of a
building.
Exhausting the dryer to the outside will prevent large amounts of lint and moisture from being blown into the
room.
•
All dryers must be exhausted to the outside.
•
Do not assemble the duct with screws or other fastening means that extend into the duct and catch
lint.
•
The exhaust duct should be 4 inches (102 mm) in diameter.
•
The total length of flexible metal duct shall not exceed 2.4 m (7.8 ft.).
In the United States:
Use only those foil-type flexible ducts, if any, specifically identified for use with the appliance by the manufacturer
and that comply with the Outline for Clothes Dryer Transition Ducts, Subject 2158A.
In Canada:
Use only those foil-type flexible ducts, if any, specifically identified for use with the appliance by the manufacturer.
Outside the U.S. and Canada:
Refer to the local codes.
WARNING
•
The dryer must be exhausted to the outside to reduce the risk of fire when installed in an alcove or
closet.
•
NEVER USE A PLASTIC OR NON-METAL FLEXIBLE DUCT.
If your existing ductwork is plastic, non-metal, or combustible, replace it with metal.
Use only a metal exhaust duct that is non-flammable to ensure containment of the exhaust air, heat,
and lint.
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