Individual exhausting
of
the
dryer
is
recommended. All heat, moisture, and lint should be exhausted outside
by
attaching a pipe
of
the
proper
diameter
to
the
dryer
adapter collars and extending
it
out
through
an
outside
wall. This pipe
must
be
very
smooth
on
the
inside,
as
rough surfaces
tend
to collect lint which will eventually
clog
the
ducts and prevent
the
dryer
from exhausting properly. All elbows must be smooth
on
the
inside. All
joints must be
made
so
the
exhaust
end
of
one pipe
is
inside the
next
one
downstream.
The
addition
of
an
exhaust pipe tends to reduce
the
amount
of
air
the
blower
can exhaust. This
doe
s
not
affect
the
dryer
operation
if
held within practical limits.
For
the
most
efficient operation,
it
is recommended that
no
more
than
14
feet
of
straight
6"
diameter pipe with
two
right angle elbows be used
for
each cylinder.
When
more than two elbows
are
used, two feet
of
straight pipe
shou
ld
be removed
for
each additional elbow.
No
more than two right angle
,elbows should
be used
to
exhaust each cylinder.
If
the
exhaust pipe passes through a wall, a metal sleeve
of
slightly
larger
diameter should
be
set
in
the
wall
and
the
exhaust pipe passed through this sleeve.
This
practice is required
by
some local
codes
and
is
recom-
mended in
all cases to protect
the
wall.
This
type
of
installation should
have
a means provided
to
prevent rain
and
high winds from entering
the
exhaust
when
the
dryer
is not in use. A
hood
with a hinged
damper
can be
used
for
this purpose. Another method
would be to point
the
outlet end
of
the
pipe downward to prevent entrance
of
wind and rain. In either case,
the
outlet should be kept clear
by
at
least 24"
of
any
objects which would
cause
air restrictions.
Never
install a protective screen
over
the
exhaust outlet.
When
exhausting a
dryer
straight
up
through a roof,
the
ove
rall length
of
the
duct
has
the
same
limits as ex-
hausting through a
wall. A rain cap must be placed
on
top
of
the
exhaust
and
must
be
of
such a
type
as to
be
free
from clogging.
Th
e type using a
cone
shaped "roof"
over
the pipe
is
suitable
for
this application.
Exhausting the dryer into a
chimney
or
under
a building is not permitted. In either case there is a
danger
of
lint buildup which can
be
highly combustible.
Installation
of
several dryers where a main discharge duct is necessary, will need
the
following considerations
for
installation. Wheth
er
using
the
8" exhaust kit
or
individual 6" ducts, entrance into the main discharge
duct
should be
at
a 45
degree
angle
in
the
direction
of
discharge air flow.
NOTE:
Never
install either
the
a· kit
or
individual 6" ducts
at
a right angle into
the
main
discha
r
ge
duct.
The
follo
wing
illustration shows
the
various round main duct diameters to
use
with
the
individual
dryer
ducts.
The
main duct can be rectangular
or
round, provided adequate
air
flow
is
maintained.
For
each individual cylinder
the
total exhausting (main discharge duct plus duct outlet
from
the
dryer) should not exceed
the
equivalent
of
14
teet
and
two
elbows.
The
diameter
of
the
main discharge duct
at
the
last
dryer
must be maintained to exhaust end.
NOTE: A small diameter
duct
will restrict air
flow
, a large diameter duct will reduce
air
velocity, both
contributing to
lint build up,
An
inspection
door
should
be
provided
for
periodic clean-out
of
the
main
duct.
DIAMETER
TO
INCREA
SE
AS
SHOWN
DRYER DUCTS
MU
ST ENTER AT
A45
° ANGLE
\
JNSTALLNO
f SCREEN
OR
....__
....
/
COVER
I\
\1
EXHAUST AIR
O
UT
- Dryer Exhausting
Using
A Main Discharge Duct And a 6" X
6"
X 8" Wye On Each Dryer.
~----------------
--------
--------------------------------------~
9
To Next Page
Loading...
Need help?
General
