Maytag MDE17CS - Page 28

2-8
Multiple Dryer Venting
A main vent can be used for venting a
group of dryers. Main vent should be sized
to remove 5663 l/min (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
airflow of all the dryers in the room.
A back-draft damper kit is needed and
is available from a commercial laundry
distributor; it should be installed in the
vent of each dryer to keep exhausted air
from returning into the dryers and to keep
the exhaust in balance within the main
vent. Unobstructed return air openings are
required.
Each vent should enter the main vent at an
angle pointing in the direction of the airow.
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°.
n
n
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
610 mm (24”) above the highest part of the
building. The opening in wall or roof shall have
a diameter 13 mm (½”) 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.
For venting manual and specications go to
the Document Links Page .
30˚ max.
air ow
A. Individual dryer vent
B. Main vent
A
B
12"min.
(305mm)
24"min.
(610mm)
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
610 mm (24 " )
min. above
highest point
of building
F
C
Min. 300 mm ( 12 ") clea rance
above any accumulation
of snow, ice, or debris such
as leaves.