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Dryer Exhaust Requirements . . .
Never install flexible duct in concealed spaces, such as a
wall or ceiling.
Exhaust System Materials
Exhaust system materials are not supplied with the dryer
unit.
Exhaust duct must be four inches (10.2 cm) in diameter
having no obstructions. Rigid metal duct is
recommended. Non-combustible semi-rigid flexible
metal duct is acceptable. Do not use plastic pipe or
flexible plastic pipe, because it contributes to poor drying
performance and collects lint, which can lead to a fire
hazard.
DO NOT use sheet metal screws on exhaust pipe joints or
other fastening means which extend into the duct that
could catch lint and reduce the efficiency of the exhaust
system. Secure all joints with duct tape.
NOTE: Kits described above are optional exhaust
system materials available at extra cost.
Make-Up Air Requirements
A dryer unit exhausts 214 cfm (measured at back of dryer
unit) and sufficient make-up air must be supplied to
replace air exhausted by each dryer unit.
An unobstructed opening of at least 40 square inches
(260 cm
2
) of outdoor make-up air MUST be provided for
each dryer unit. Protective louvers in the opening to the
outdoors can reduce air movement approximately 35 to
40 percent. Be sure the opening is large enough to
compensate for any louvers.
If it is necessary to duct make-up air to the dryer unit,
increase the area of the ductwork by 25 percent to
compensate for any reduction in air movement. In
addition, the make-up air duct should extend down to
within approximately two feet from the floor, directly
behind the dryer unit.
A clothes dryer produces combustible lint. To
reduce the risk of fire and combustion gas
accumulation the dryer MUST be exhausted to
the outdoors.
W116
This gas appliance contains or produces a
chemical or chemicals which can cause death
or serious illness and which are known to the
State of California to cause cancer, birth
defects, or other reproductive harm. To
reduce the risk from substances in the fuel or
from fuel combustion, make sure this
appliance is installed, operated, and
maintained according to the instructions in
this manual.
W115
To reduce the risk of fire and the
accumulation of combustion gases, DO NOT
exhaust dryer air into a window well, gas vent,
chimney or enclosed, unventilated area, such
as an attic, wall, ceiling, crawl space under a
building or concealed space of a building.
W045
To reduce the risk of fire, DO NOT use plastic
pipe or flexible plastic pipe to exhaust the
dryer.
W041
WARNING
DESCRIPTION KIT P/N
MAY BE
OBTAINED
LOCALLY
Exhaust Duct (4" Dia.) Not Available Yes
Flexible Metal Duct
(4" Dia)
521P3 Yes
Weather Hoods, with
hinged dampers (4")
Not Available Yes
Directional Exhaust Kit 528P3 No
Tape Not Available Yes
DON'T
D356IE0B
D354IE0C
DO