ADC AD-30x2 Series, Руководство по установке

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If the length of the duct run or quantity of elbows used exceeds
the above noted specifications, the cross-sectional area of
the ductwork may need to be increased.
IMPORTANT: For extended ductwork runs, the cross
section area of the ductwork can only be increased to an
extent. When the ductwork approaches the maximum limits
noted in this manual, a professional HVAC firm should be
consulted for proper venting information.
Multiple Dryer (Common) Venting
If it is not feasible to provide separate exhaust ducts for each
dryer, ducts from individual dryers may be channeled into a
“common main duct.” The individual ducts should enter the
bottom or side of the main duct at an angle not more than 45°
in the direction of airflow. The main duct should be tapered,
with the diameter increasing before each individual 10-inch
(25.4 cm) duct (when dryer common exhaust is used) is added.
IMPORTANT: No more than four dryers or eight tumblers
total should be connected to one main common duct.
The main duct may be any shape provided that the minimum
cross-sectional area is maintained. The illustration below
shows the minimum cross-sectional area for multiple dryer
venting. These figures must be increased if the main duct run
from the last dryer to where it exhausts to the outdoors is
unusually long (over 30 feet [9.1 meters]) or has numerous
elbows (more than one) in it.
This calculation of 45 feet (13.7 meters) compensates or
allows for the use of a maximum of two elbows. Refer to the
illustration below. IMPORTANT: The dryer exhaust duct must not be
connected to any gas vent, chimney, wall, ceiling, or
concealing space of a building.
It is recommended that exhaust or booster fans not be
used in the exhaust ductwork system.
As per the National Fuel Gas Code, “Exhaust ducts for
type 2 clothes dryers shall be constructed of sheet metal or
other noncombustible material. Such ducts shall be
equivalent in strength and corrosion resistance to ducts
made of galvanized sheet steel not less than 26 gauge
(0.0195-inches [0.50 mm]) thick.”
Single Dryer Venting (8” Duct)
IMPORTANT: A minimum exhaust duct size of 8-inches
(20.3 cm) must be used.
For an 8-inch (20.3 cm) run where a maximum of two elbows
are used (refer to the following illustration), the ductwork from
the dryer outlet must not exceed 10 feet (3.0 meters).
This calculation of 10 feet (3.0 meters) compensates or allows
for the use of a maximum of two elbows. Refer to the illustration
below.
If the length of the duct run or quantity of elbows used exceeds
the above noted specifications, the cross-sectional area of
the ductwork may need to be increased.
IMPORTANT: For extended ductwork runs, the cross
section area of the ductwork can only be increased to an
extent. When the ductwork approaches the maximum limits
noted in this manual, a professional HVAC firm should be
consulted for proper venting information.
Single Dryer Venting (10” Duct)
IMPORTANT: A minimum exhaust duct size of 10-inches
(25.4 cm) must be used for extended runs.
For a 10-inch (25.4 cm) run where a maximum of two elbows
are used (refer to the following illustration), the ductwork from
the dryer outlet must not exceed 45 feet (13.7 meters).