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Installation
Instructions
-A WARNING
USE ONLY METAL DUCT 4" DIAMETER (102 mm
FOR CANADA). DO NOT USE DUCT LONGER THAN
SPECIFIED IN THE EXHAUST LENGTH TABLE.
Ducting longer than 150 equivalent
feet will:
• Increase the drging times and the energg cost.
• Reduce the drger life.
• Accumulate
lint, creating a potential
fire hazard.
• Total length of flexible metal duct should not
exceed 7.9' (2.4 m).
EXAMPLE ONLY
The following
chart describes an example of one
possible ductwork
installation.
The correct
exhaust
installation
is gour
responsibilitg.
Problems due to incorrect
installation
are not
covered bg the warrantg.
The length of the exhaust sgstem depends upon
the tgpe of duct, number of turns and the tgpe of
exhaust hood (wall cap), and all conditions
noted
below. Both rigid and flexible metal ducts are shown
in the table.
For satisfactorg
air movement,
the total duct length
should not exceed 150 equivalent
feet.
3
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u
.-.1
a<
EQUIVALENT
RIGID
NUMBER
EQUIVALENT
DUCT PIECES
LENGTH
X
USED
=
LENGTH
1 Ft.
X
(4)
=
/4 Ft.
_m_
tessThan4 R
Rigid Metal
Ducting
(Preferred)
Elbows
(90°/45°)
Turns Less
Than 4 Ft.
10 Ft.
X
(3)
2 Ft.
X
(1)
30 Ft.
2 Ft.
Rigid Ducting
1 Ft.
X
(5)
=
5 Ft.
_
_
4" Wall Cap
5 Ft.
X
(1)
=
5 Ft.
•-J _.
Total Ductwork
Length
=
46 Ft.
TOTAL MUST BE LESS THAN OR EQUAL TO 150 FT.
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