American Dryer Corp MDG-30 installation manual Vertical Venting

VERTICAL VENTING

When vertical single venting is used the minimum duct size is 10-inches (25.4 cm) refer to Illus. B below, the ductwork from the dryer to the outside outlet cannot exceed 60 feet (18.3 meters) refer to Illus. B below. This calculation compensates for the use of a maximum of three (3) elbows including the two (2) elbows creating the 180° (turned downward) outside outlet.

Illus. B

If the length of the duct run or quantity of elbows used exceeds the above noted specifications, the cross section area of the ductwork must be increased in proportion to the number of elbows or duct run added.

IMPORTANT: For extended ductwork runs, the cross section area of the duct can only be increased to an extent. For extended ductwork runs, a professional heating, ventilating, and air-conditioning (HVAC) firm should be consulted for proper venting information.

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