American Dryer AD-120ES Clothes Dryer User Manual


 
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IMPORTANT: Make-up air must be provided from a source free of dry cleaning solvent fumes.
Make-up air that is contaminated by dry cleaning solvent fumes will result in
irreparable damage to motors and other dryer components.
NOTE: Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY.
E. EXHAUST REQUIREMENTS
1. GENERAL EXHAUST DUCT WORK INFORMATION
Exhaust duct work should be designed and installed by a qualified professional. Improperly sized duct
work will create excessive back pressure which results in slow drying, increased use of energy,
overheating of the dryer, and shutdown of the burner by the airflow (sail) switches, burner hi-limits, or
basket (tumbler) hi-heat thermostats..
CAUTION: DRYER MUST BE EXHAUSTED TO THE OUTDOORS.
CAUTION: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCT WORK CAN
CREATE A POTENTIAL FIRE HAZARD.
NOTE: When a dryer is exhausted separately, it is recommended that a back draft damper be
installed.
NOTE: When dryers are exhausted into a multiple (common) exhaust line, each dryer must be
supplied with a back draft damper.
The exhaust duct work should be laid out in such a way that the duct work travels as directly as
possible to the outdoors with as few turns as possible. Single or independent dryer venting is
recommended. When single dryer venting is used, the duct work from the dryer to the outside exhaust
outlet should not exceed twenty (20) feet. In the case of multiple (common) dryer venting, the distance
from the last dryer to the outside exhaust outlet should not exceed twenty (20) feet. The shape of the
duct work is not critical so long as the minimum cross section area is provided. It is suggested that the
use of 90º turns in ducting be avoided; use 30º and/or 45º angles instead. The radius of the elbows should
preferably be 1-1/2 times the diameter of the duct. Excluding basket/dryer elbow connections or elbows
used for outside protection from the weather, no more than two (2) elbows should be used in the exhaust
duct run. If more than two (2) elbows are used, the cross section area of the duct work must be increased in
proportion to number of elbows added.