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EQUIVALENT
RIGID NUMBER EQUIVALENT
DUCT PIECES LENGTH X USED = LENGTH
Rigid Metal 1 Ft. X (4) = 4 Ft.
Ducting
(Preferred)
Elbows 10 Ft. X (3) = 30 Ft.
(90°/45°)
Turns Less 2 Ft. X (1) = 2 Ft.
Than 4 Ft.
Rigid Ducting 1 Ft. X (5) = 5 Ft.
4″ Wall Cap 5 Ft. X (1) = 5 Ft.
Total Ductwork Length = 46 Ft.
TOTAL MUST BE LESS THAN OR EQUAL TO 90 FT.
Installation Instructions
26
EXHAUSTING THE DRYER (cont.)
WARNING
USE ONLY METAL 4″ DUCT. DO NOT USE
DUCT LONGER THAN SPECIFIED IN THE EXHAUST
LENGTH TABLE.
Ducting longer than 90 equivalent feet will:
• Increase the drying times and the energy cost.
• Reduce the dryer life.
• Accumulate lint, creating a potential fire hazard.
EXAMPLE ONLY
The following chart describes an example of one
possible ductwork installation.
The correct exhaust installation is your
responsibility.
Problems due to incorrect installation are not
covered by the warranty.
The length of the exhaust system depends upon
the type of duct, number of turns and the type of
exhaust hood (wall cap), and all conditions noted
below.
For satisfactory air movement, the total duct length
should not exceed 90 equivalent feet.
4″
(10.2 cm)
TRANSITION
DUCTING
(DRYER TO WALL)
INSIDE WALLS/CEILING
(WALL TO WALL CAP)
WALL
CAPS
Less Than 4 Ft.