Maytag MDE18PDAG Instrucciones De Instalación página 12

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DRYER VENTING REQUIREMENTS
If an Exhaust Hood Cannot be Used
The outside end of main vent should have a sweep elbow directed
downward.
* Minimum clearance above any
accumulation of snow, ice, or
debris such as leaves
If main vent travels vertically through the roof, rather than through
wall, install a 180° sweep elbow on end of vent at least 610 mm
(2 ft.) above surface of roof.
The opening in wall or roof shall have a diameter 13 mm (1⁄2")
larger than vent diameter. Vent should be centered in opening.
Do not install screening over end of vent for best performance.
12
Multiple Dryer Venting
A main vent can be used for venting a group of dryers. The 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
main vent if checked and cleaned frequently. The room where the
dryers are located should have make-up air equal to or greater than
CFM of all the dryers in the room.
Back-draft dampers are available from your distributor and should
be installed in the vent of each dryer to keep exhausted air from
returning into dryers and to keep exhaust in balance within main
vent. Unobstructed return air openings are required.
Although usually each single-load dryer should have an
unobstructed outdoor air opening of 154 cm
6.5 cm
[1 in.
] per 252 kcal [1,000 Btu]), common make-up air
2
2
openings are also acceptable. Set up common openings so the
make-up air is distributed equally to all of the dryers. Keep in mind
that the coverage area must be increased by 33% to account for
the use of registers or louvers over the openings. Also, make-up air
openings should not be installed near the location where exhaust
vents exit the building.
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.
air ow
Air Flow
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 items being dried.
A clean-out cover should be located on the main vent for periodic
cleaning of the vent system.
(24 in.
) (based on
2
2
30˚ max.

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