American Dryer Non-Tilting Phase 5 ML-200 User Manual
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a. Outside Duct Work Protection
1) To protect the outside end of horizontal duct work from the weather, a 90º elbow bent downward
should be installed where the exhaust exits the building. If the duct work 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 the nearest obstruction.
IMPORTANT: DO NOT use screens or caps on the outside of opening of exhaust duct work.