Maytag MDE17CS - Venting Requirements and Safety

2-6
WARNING: To reduce the risk of re, this
dryer MUST BE EXHAUSTED OUTDOORS.
Adequate ventilation has to be provided
to avoid the backflow of gases into the
room from appliances burning other fuels,
including open res (i.e. available airow
into the room should match airow out from
the room).
The dryer vent must not be discharged into
a flue which is used for exhausting fumes
from appliances burning gas or other fuels,
chimney, wall, ceiling, or a concealed space
of a building, or any other vent used for
venting.
Do not use an exhaust hood with a
magnetic latch.
Do not install flexible metal vent in enclosed
walls, ceilings, or oors.
102 mm (4”) heavy metal vent and clamps
must be used.
Use clamps to seal all joints. Vent must not
be connected or secured with screws or
other fastening devices which extend into
the interior of the vent. Do not use duct
tape.
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IMPORTANT:
Observe all governing codes
and ordinances.
Use a heavy metal vent. Do not use plastic
or metal foil vent.
Rigid metal vent is recommended to avoid
crushing and kinking.
Flexible metal vent must be fully extended
and supported when the dryer is in its final
position. Remove excess flexible metal vent
to avoid sagging and kinking that will result
in reduced airflow and poor performance.
An exhaust hood should cap the vent to
keep rodents and insects from entering the
building.
Exhaust hood must be at least 305 mm
(12”) from the ground or any object that
may be in the path of the exhaust (such as
flowers, rocks, or bushes).
If using an existing vent system, clean lint
from the entire length of the system and
make sure exhaust hood is not plugged with
lint. Replace any plastic or metal foil vent
with rigid metal or flexible metal vent.
Plan installation to use the fewest number of
elbows and turns.
Allow as much room as possible when
using elbows or making turns. Bend vent
gradually to avoid kinking.
Vent outlet is located at the center of the
lower dryer back.
The vent can be routed up, down, left, right,
behind the dryer, or straight out the back of
the dryer.
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VENTING REQUIREMENTS
Multiple Dryer Venting
� A main vent can be used for venting a group of dryers. Main
vent should be sized to remove 200 CFM of air per dryer.
Large-capacity lint screens of proper design may be used in
the main vent if checked and cleaned frequently. The room
where the dryers are located should have make-up air equal
to or greater than the CFM of all the dryers in the room.
� Back-draft Damper Kit, Part No. 3391910, is available from
your Whirlpool dealer and should be installed in each dryer's
vent to prevent exhausted air from returning into the dryers
and to keep the exhaust in balance within the main vent.
Unobstructed air openings are required.
Each vent should enter the main vent at an angle pointing in the
direction of the airflow. Vents entering from the opposite side
should be staggered to reduce the exhausted air from interfering
with the other vents.
The maximum angle of each vent entering the main vent should
be no more than 30°.
Keep air openings free of dry cleaning fluid fumes. Fumes create
acids which, when drawn through the dryer heating units, can
damage dryers and loads being dried.
A clean-out cover should be located on the main vent for periodic
cleaning of the vent system.
If an exhaust hood cannot be used:
The outside end of the main vent should have a sweep elbow
directed downward. If the main vent travels vertically through the
roof, rather than through the wall, install a 180° sweep elbow on
the end of the vent at least 2 ft. (61 cm) above the highest part of
the building. The opening wall or roof shall have a diameter ¹⁄₂"
(1.3 cm) larger than the vent diameter. The vent should be
centered in the opening.
Do not install screening or cap over the end of the vent.
If using an existing vent system, clean lint from the entire length
of the system and make sure exhaust hood is not plugged with
lint. Replace any plastic or metal foil vent with rigid metal or
flexible metal vent.
Plan installation to use the fewest number of elbows and turns.
Allow as much room as possible when using elbows or making
turns. Bend vent gradually to avoid kinking.
Vent outlet is located at the center of the bottom dryer back.
The vent can be routed up, down, left, right, behind the dryer or
straight out the back of the dryer.
Vent System Length
Maximum length of vent system depends upon the type of vent
used, number of elbows and type of exhaust hood. The maximum
length for both rigid and flexible vent is shown in the chart.
For vent systems not covered by the vent specification chart, see
Whirlpool Service Manual, “Exhausting Whirlpool Dryers,” Part
No. LIT603197, available from your Whirlpool parts distributor.
If dryer is installed in a confined area, such as a bedroom,
bathroom or closet, provision must be made for enough air for
combustion and ventilation. (Check governing codes and
ordinances.) See “Recessed Area and Closet Installation
Instructions” in the “Location Requiements” section.
A 4" (10.2 cm) outlet hood is preferred. However, a 2¹⁄₂" (6.4 cm)
outlet exhaust hood may be used. A 2¹⁄₂" (6.4 cm) outlet creates
greater back pressure than other hood types. For permanent
installation, a stationary vent system is required.
9
A
B
Exhaust Air Flow
A. Better
B. Good
Rigid Metal Vent
No. of 90° turns
No. of 90° turns
Flexible Metal Vent
4" (10.2 cm) Diameter Exhaust Hoods
Maximum Vent Length
135 ft. (41.2 m)
125 ft. (38.1 m)
115 ft. (35.1 m)
106 ft. (32.3 m)
98 ft. (29.9 m)
76 ft. (23.2 m)
71 ft. (21.6 m)
67 ft. (20.4 m)
65 ft. (19.8 m)
63 ft. (19.2 m)
0
1
2
3
4
0
1
2
3
4
129 ft. (39.3 m)
119 ft. (36.3 m)
109 ft. (33.2 m)
100 ft. (30.5 m)
92 ft. (28.0 m)
62 ft. (18.9 m)
57 ft. (17.4 m)
53 ft. (16.2 m)
51 ft. (15.6 m)
49 ft. (14.9 m)
Box Hood and Louvered Style Angled Hood Style
Box Hood and Louvered Style Angled Hood Style
A. Individual dryer vent
B. Main vent
air flow
30° max.
A
B
A
A. Exhaust hood or elbow
B. Wall
C. Main collector vent
D. Horizontal vent
E. 180° sweep elbow
F. Vertical vent
G. Roof
E
B
G
C
D
2 ft. (61 cm) min. above
highest point of building
F
C
Fire Hazard
Use a heavy metal vent.
Do not use plastic vent.
Do not use metal foil vent.
Failure to follow these instructions
can result in death or fire.
WARNING