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70458301ENR6
42
© Copyright, Alliance Laundry Systems LLC - DO NOT COPY or TRANSMIT
Exhaust Requirements
Layout
Whenever possible, install tumble dryers along an
outside wall where duct length can be kept to a
minimum, and make-up air can be easily accessed.
Construction must not block the airflow at the rear of
the tumble dryer. Doing so would prevent adequate air
supply to the tumble dryer combustion chamber.
Make-Up Air
A tumble dryer is forced air exhausted and requires
provisions for make-up air to replace air exhausted by
tumble dryer.
IMPORTANT: Do not obstruct flow of combustion
and ventilation air.
Make-up air openings with louvers will restrict
airflow. The opening must be increased to compensate
for area taken up by louvers.
Make-up air openings in rooms containing tumble
dryer(s) and/or gas fired hot water heater or other
gravity vented appliances must be increased
sufficiently to prevent downdrafts in any of the vents
when all tumble dryers are in operation. Do not locate
gravity vented appliances between tumble dryer(s) and
make-up air openings. If it is necessary to duct make-
up air to tumble dryer(s), increase area of duct work by
25% to compensate for restrictions in air movement.
Venting
IMPORTANT: Installing in-line filters or lint
collectors will cause increased static pressure.
Failure to maintain the secondary lint system will
decrease tumble dryer efficiency and may void
machine warranty.
For maximum efficiency and minimum lint
accumulation, tumble dryer air must be exhausted to
the outdoors by the shortest possible route.
Proper sized exhaust ducts are essential for proper
operation. All elbows should be sweep type. Exhaust
ducts must be assembled so the interior surfaces are
smooth, so the joints do not permit the accumulation
of lint. DO NOT use plastic, thin foil or Type B
flexible ducts - rigid metal ducts are recommended.
Use exhaust ducts made of sheet metal or other
noncombustible material. DO NOT use sheet metal
screws or fasteners on exhaust pipe joints which
extend into the duct and catch lint. Use of duct tape or
pop-rivets on all seams and joints is recommended, if
allowed by local codes.
Verify that old ducts are thoroughly cleaned out before
installing new tumble dryer(s).
Required Make-Up Air Opening
(to the outside) for Each Tumble Dryer
Model Opening
025/030 Series
110 in.
2
(7,090 mm
2
)
035/055 Series
144 in.
2
(9,280 mm
2
)
T30 Series
220 in.
2
(14,180 mm
2
)
T45 Series
288 in.
2
(18,560 mm
2
)
WARNING
A drying tumble dryer produces
combustible lint. To reduce the risk of
fire, the tumble dryer must be exhausted
to the outdoors.
W057R1
To reduce the risk of fire, DO NOT use
plastic or thin foil ducting to exhaust the
tumbler.
W773
To reduce the risk of fire and
accumulation of combustible gases, DO
NOT exhaust tumble 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.
W059R1
WARNING
To reduce the risk of fire due to increased
static pressure, we do not recommend
installation of in-line secondary lint filters
or lint collectors. If secondary systems
are mandated, frequently clean the
system to assure safe operation.
W749
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