Alliance Laundry Systems 907003062 User Manual

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70420801 (EN)
Exhaust Requirements
Layout
Wherever possible, install tumble dryers along an 
outside wall, where duct length can be kept to a 
minimum and makeup air can be easily accessed. 
Construction must not block the airflow at the top 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. Refer to Table 3.
IMPORTANT: Do not obstruct flow of combustion 
and ventilation air. 
Table 3 
Make-up air openings with louvers will restrict air 
flow. 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 any restriction 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 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. 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 before 
installing new tumble dryer(s).
Required Make-Up Air Opening 
(to the outside) for Each Tumble Dryer
Models
Opening
120 Pound
360 in.
2
 (2323 cm
2
)
free air
170 Pound
525 in.
2
 (3710 cm
2
)
free air
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 and accumulation 
of combustible gases, DO NOT exhaust 
tumbler air into a window well, gas vent, 
chimney or enclosed, unventilated area 
such as an attic, ceiling, crawl space under 
a building, or concealed space of a 
building.
W506
WARNING
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