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E
xhaust
Requirements
And
Maintenance
10
Exhaust Requirements And Maintenance
Following
are
important
instructions
and
information
concerning
the
exhaust
requirements
for
your
dryer.
Important
Warning:
To
reduce
the
risk
of
fire,
combustion,
or
accumulation
of
combustible
gases,
DO
NOT
exhaust
dryer
air
into
an
enclosed
and
unventilated
area,
such
as
an
attic,
wall,
ceiling,
crawl
space,
chimney,
gas
vent,
or
concealed
space
of
a
building.
To
reduce
the
risk
of
fire,
DO
NOT
exhaust
the
dryer
with
plastic
or
thin
foil
ducting.
Exhaust
Requirements
and
Instructions:
1.
Venting
materials
are
not
provided
with
the
dryer
and
you
should
obtain
the
necessary
venting
materials
locally.
For
example,
the
outer
end
of
exhaust
pipe
must
have
a
weather
hood
with
hinged
dampers
to
prevent
back-draft
when
the
dryer
is
not
in
use.
2.
The
exhaust
duct
must
be
four
inches
(10.2
cm)
in
diameter
with
no
obstructions.
The
exhaust
duct
should
be
kept
as
short
as
possible.
Make
sure
to
clean
any
old
ducts
before
installing
your
new
dryer.
3.
Rigid
or
semi-rigid
metal
ducting
is
recommended
for
use
as
transition
ducting
between
the
dryer
and and
the
wall.
In
special
installations
when
it
is
impossible
to
make
a
connection
with
the
above
recommendations,
then
a
UL-listed
flexible
metal
transition
duct
may
be
used
between
the
dryer
and
wall
connection
only.
The
use
of
this
ducting
will
affect
dry
time.
4.
DO
NOT
use
sheet
metal
screws
on
exhaust
pipe
joints
or
other
fastening
means
which
extend
into
the
duct
that
could
catch
lint
and
reduce
the
efficiency
of
the
exhaust
system.
Secure
all
joints
with
duct
tape.
5.
To
maximize
operating
results,
please
observe
the
duct
length
limitations
noted
in
the
chart
above.
!
Number
of
90°
Elbows
Weather
Hood
Type
Recommended
Maximum
length
of
4"
(10.2
cm)
diameter
rigid
metal
duct
Maximum
length
of
4"
(10.2
cm)
diameter
flexible
metal
duct
NOTE
:
Deduct
6
feet
(1.8
m)
for
each
additional
elbow.
It
is
not
recommended
to
use
more
than
4
90°
elbows.
Use
Only
for
Short
Run
Installations
0
1
2
3
4
0
1
2
3
4
65
feet
(19.8
m)
55
feet
(16.8
m)
47
feet
(14.3
m)
36
feet
(11.0
m)
28
feet
(8.5
m)
45
feet
(13.7
m)
35
feet
(10.7
m)
30
feet
(9.1
m)
25
feet
(7.6
m)
20
feet
(6.1
m)
55
feet
(16.8
m)
47
feet
(14.3
m)
41
feet
(12.5
m)
30
feet
(9.1
m)
22
feet
(6.7
m)
35
feet
(10.7
m)
27
feet
(8.2
m)
21
feet
(6.4
m)
17
feet
(5.2
m)
15
feet
(4.5m)
4"
(10.2
cm)
4"
(10.2
cm)
2-1/2"
(6.35
cm)
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