20 American Dryer Corp. 112144-46
To protect the outside end of the horizontal ductwork from the weather, a 90º elbow bent downward should be
installed where the exhaust exits the building. If the exhaust ductwork travels vertically up through the roof, it
should be protected from the weather by using a 180º turn to point the opening downward. In either case, allow
at least twice the diameter of the duct between the duct opening and nearest obstruction.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust
ductwork.
NOTE: Refer to the illustrations on page 21 for examples of multiple dryer (common) venting.
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