WEATHER HOOD
OR SWEEP ELBOW (No cap or screen)
PARAPET
MAIN COLLECTOR DUCT
WALL 
HORIZONTAL DUCT
•Main collector duct should be sized according to specifications shown below.
180˚ SWEEP
ELBOW (No cap or screen)
DUCT | 60.96 cm |
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MAIN COLLECTOR | (24") MIN. |
ROOF |
D039IE3D
VERTICAL DUCT
Number of Dryers | Minimum Diameter of | Minimum Diameter of | |
Horizontal Collector Duct | Vertical Collector Duct | ||
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2 | 17.8 cm (7 inches) | 20.3 cm (8 inches) | |
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3 | 20.3 cm (8 inches) | 22.9 cm (9 inches) | |
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4 | 22.9 cm (9 inches) | 25.4 cm (10 inches) | |
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5 | 25.4 cm (10 inches) | 27.9 cm (11 inches) | |
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6 | 27.9 cm (11 inches) | 30.5 cm (12 inches) | |
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7 | 30.5 cm (12 inches) | 32.6 cm (13 inches) | |
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8 | 30.5 cm (12 inches) | 35.6 cm (14 inches) | |
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9 | 32.6 cm (13 inches) | 38.1 cm (15 inches) | |
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10 | 35.6 cm (14 inches) | 38.1 cm (15 inches) | |
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11 | 35.6 cm (14 inches) | 40.6 cm (16 inches) | |
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NOTE: Main collector duct should be equipped with an auxiliary fan that can maintain the duct airflow at a minimum of 366 m (1200 feet) per minute. If you do not have a fan, clean the main collector duct at least twice a year.
26 | 504523 |