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DUCTING REQUIREMENTS
• Use a 4-inch (10.2 cm) diameter rigid aluminum or rigid galvanized steel duct.
Do not use a smaller duct.
Ducts larger than 4 inches (10.2 cm) in diameter can result in increased lint accumulation.
Lint accumulation should be cleaned regularly.
Ifa flexible metal duct must be used, use the type with a stiff sheet metal wall. Do not use a flexible duct
with a thin foil wall. Serious blockage can result if the flexible metal duct is bent too sharply.
Never install any type of flexible duct in walls, ceilings, or other concealed spaces.
Keep the exhaust duct as straight and short as possible.
Secure joints with duct tape. Do not use screws.
• DO NOT EXHAUST DRYER INTO ANY WALL, CEILING, CRAWL SPACE, OR CONCEALED SPACE OF
A BUILDING, GAS VENT, OR ANY OTHER COMMON DUCT OR CHIMNEY.
THIS COULD CREATE A FIRE HAZARD FROM LINT EXPELLED BY THE DRYER.
,, Plasticflexibleduct can kink, sag, be punctured, reduce airflow, extend dryingtimes,and affectdryer operation.
,, Exhaust systems longer than recommended can extend drying times, affect machine operation, and
may collect lint.
,, The exhaust duct should end with an exhaust hood with a swing-out damper to prevent back drafts and
entry of wildlife. Never use an exhaust hood with a magnetic damper.
,, The hood should have at least 12 inches (30.5 cm) of clearance between the bottom of the hood and
the ground or other obstruction. The hood opening should point down.
,, Never install a screen over the exhaust outlet.
,, To avoid lint buildup, do not exhaustthe dryerdirectly intoa window well. Do not exhaustunder a house or porch.
,, Ifexhaust ductwork must run through an unheated area, the duct should be insulated and slope slightly
down towards the exhaust hood to reduce condensation and lint buildup.
,, Inspectand cleanthe interiorof the exhaust system at leastonce ayear.Unplug the powercord beforecleaning.
,, Check frequently to be sure the exhaust hood damper opens and closes freely.
,, Check once per month, and clean at least one time per year. Note: If clothes are not getting dry, then
check ducting for obstructions.
EXHAUST LENGTH CALCULATION
Table 1 RECOMMENDED MAXIMUM LENGTH
No. of 90° elbows
0
Weather Hood Type
only for short run installations
_4" (10.16 cm) _21/2" (6.35 cm)
I Metallic Flexible_ i Metallic Flexible_
14 m (46 ft.) 9 m (30 ft.) 11 m (37 ft.) 7 m (24 ft.)
11 m (38 ft.) 7.5 m (25 ft.) 9 m (30 ft.) 6 m (20 ft.)
9 m (31 ft.) 6 m (20 ft.) 6.5 m (22 ft.) 4 m (14 ft.)
7 m (24 ft.) 5 m (16 ft.) 4.5 m (15 ft.) 3 m (10 ft.)
* Do not use non-metallic flexible duct.
8 Instaling your dryer
