14 American Dryer Corp. 113063-11
NOTE: It is recommended that exhaust or booster fans not be used in the exhaust ductwork system
except where necessary to maintain exhaust back pressure (in the exhaust duct) between zero
and 0.3 inch water column. Where employed, booster fans must not activate the dryer
airflow proving switch (sail switch) when the dryer is not in operation.
SINGLE DRYER VENTING
IMPORTANT: For exhaust duct runs over 30 feet (9.14 meters) a minimum size of 10-inches (25.4
cm) must be used.
HORIZONTAL VENTING
When horizontal single 8-inch (20.32 cm) venting is used, the ductwork to the outlet cannot exceed 30 feet (9.14
meters), refer to Illus. A below. This calculation of 30 feet (9.14 meters) compensates or allows for the use of
a maximum of only one (1) elbow.
Illus. A
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