E. EXHAUST REQUIREMENTS
Exhaust ductwork should be designed and installed by a qualified professional. Improperly sized ductwork 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
CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors.
CAUTION: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCTWORK CAN CREATE A POTENTIAL FIRE HAZARD.
The exhaust ductwork should be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible. When single dryer venting is used, the ductwork from the dryer to the outside exhaust outlet must not exceed 10 feet. In the case of multiple (common) dryer venting, the distance from the last dryer to the outside exhaust outlet must not exceed 20 feet. The shape of the exhaust ductwork is not critical so long as the minimum
1.Single Dryer Venting
When possible, it is suggested to provide a separate exhaust duct for each dryer. The exhaust ductwork should be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible. It is suggested that the use of 90° turns in ducting be avoided; use 30° or 45° angles instead. The shape of the exhaust ductwork is not critical so long as the minimum
IMPORTANT: Exhaust back pressure measured by a manometer at the dryer’s exhaust duct area must be no less than 0 and must not exceed 0.3 inches of water column (W.C.) when both baskets (tumblers) are operating.
It is suggested that the ductwork from each dryer not exceed 10 feet with no more than two (2) elbows. If the ductwork exceeds 10 feet or has numerous elbows, the
IMPORTANT: For extended ductwork runs, the
The ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL ductwork joints must be taped to prevent moisture and lint from escaping into the building. Also, inspection doors should be installed at strategic points in the exhaust ductwork for periodic inspection and cleaning.
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork system.
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