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Exhaust Requirements - Whirlpool 3402328 Installation Instructions Manual

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Exhaust
requirements
Fire Hazard
Do Not use non-metal, tlexlble duct.
Do Not use metal duct smaller than
10.2 cm (tour Inches) In diameter.
Do Not use exhaust hoods wlth
metal latches.
Check that exhaust system Is not
longer than specltled. Exhaust
system longer than speclfled will:
- Accumulate
Ilnt.
- Shorten the llfe ot the dryer.
- Reduce the performance,
resulting In longer drylng times
and Increased energy usage.
Failure to
r0ii0w
specltlcatlons
may
result In a tire.
Do Not exhaust dryers Into a
chimney, turnace cold alr duct,
alilc or crawl space, or any other
duct used ror ventlng.
Clean the exhaust system every
other year.
Do Not Install tlexlble duct In
enclosed walls, celllngs or floors.
Accumulated
lint could result In a
fire or cause moisture damage.
Exhaust dryers outslde to prevent
exposure to substances In gas
tuels and combustion which may
be harmful to your health.
The moisture and llnt Indoors may
cause:
- FIRE HAZARD tram llnt collected
In
dryer.
- Moisture damage to woodwork,
furniture, palnt, wallpaper, carpet,
etc.
- Housecleanlng
problems and
possible health problems.
Failure to tallow these lnstructlons
could result In a tlre or Inlury.
ixhaust materials are not supplled.
It uslng an exlstlng exhaust system,
clean llnt from entlre length ot
exhaust system. Make sure exhaust
hood Is not plugged wlth Ilnt.
The exhaust system should be
Inspected and cleaned yearly.
Replace any vlnyl or metalllzed
plastic toll exhaust duct wlth rlgld
metal or tlexlble metal duct.
Use duct tape
to seal
all joints. Do Not use
screws to secure duct.
10.2-cm (tour-
Inch) metal
exhaust duct
is
required.
Plan
installation
to
use the fewest
exhaust air tlow
better
good
number
of elbows
and turns,
i?zJ
Metal tlexlble duct
must be fully
extended
and supported
when the
dryers are in final position,
DO NOT
KINK OR CRUSH THE DUCT. The metal
flexible duct must be completely
open to allow adequate
exhaust
air
to flow.
Allow as much room as possible when
using elbows or making
turns. Bend
duct gradually
to avoid kinking.
Remove
excess flexible duct to avoid
sagging
and kinking that may cause
reduced
airflow.
The external exhaust ducts
can be
routed
straight out the back of the
dryers. Kits are available
to convert
the external
exhaust
duct to be
routed
right, left or through
the
bottom
(See Page 6). Product
dimensions
and recessed
area
requirements
are given on Page 7.
Slde or bottom exhaust:
The
maximum
length of the exhaust
system through
the side or bottom
is
4.9 m (16 feet) wlth two external
elbows and hood.
Rear exhaust:
The maximum
length of
the exhaust
system depends
on the
type of duct, the number
of elbows
and the type of exhaust
hood. The
maximum
length for both rigid and
flexible
duct is shown in the chart.
Thls chart applies only to lndlvldually
exhausted unlts.
I
EXHAUST HOOD TYPE
E!$i2
9;s
IQ2 all (4-l
I(12 cm (F
WIMUM
LENGTH OF 10.2~cm (4-inch)
DIAMEIERRIGID
MEIAL DUC
0
13.1 m (43')
12.5 m (41')
11.0 m (36')
1
10.1 m (33')
9.4
m (31')
7.9
m (26')
2
7.0
m (23')
6.4
m (21')
4.9
m (16')
I
I
I
AXIMUM
IfNGiH
OF 10.2~cm @-inch)
DIAMETER FLWBLE METAL DUC
0
9.1 m (JO')
8.8
m (29')
7.3
m (24')
1
7.3
m (24')
7.0
m (23')
5.5 m (18')
2
4.9
m (16')
4.6
m (15')
3.0
m (10')
For
exhaust systems
not covered
by
the exhaust
length chart, see
WhirtDool Service Manual,
"Exhausting
Whirlpool
Dryers," Part No. 603197,
available
from your Whirlpool
parts
distributor.
Service check:
The back pressure in
any exhaust
system used must not
exceed
0.6 inches of water column
measured
with an incline manometer
at the point that the exhaust
system
connects
to the dryers.
If dryers are Installed In a conflned
area
such as a bedroom,
bathroom
or closet, they must be exhausted
to
the outslde
and provislon
must be
made
for enough
air for combustion
and ventilation.
(Check
governing
codes and ordinances.
Also refer to
the "Recessed
area and closet
installation
instructions,"
Page 7.)
An
exhaust hood
should cap the
exhaust
duct to prevent
exhausted
air from returning
into the dryers. The
outlet hood must be at least 30.5 cm
(12 inches) from the ground
or any
object
that may be in the path of the
exhaust.
10.2-cm (four-Inch) outlet hood ls
preferred.
However,
a 6.4-cm (2-l /2-
inch) outlet exhaust
hood may be
used. (A 64cm
(2-l/2-inch)
outlet
creates
greater
back pressure than
other hoods.)
A maln exhaust duct
can be used for
exhausting
a group of dryers. Main
exhaust
duct should be sized to
remove
18.6 CCM (200 CFM) of air
per dryer. Large-capacity
lint screens
of proper
design may be used in the
main exhaust
duct if checked
and
cleaned
frequently.
The room where
the dryers are located
should have
make-up
air equal
to or greater
than
the CFM of all the dryers in the room.
airflow
-
maincolleciorducl
-
Back-drattdamper
kits
(Part No.
3391910) are available
from your
Whirlpool
dealer
and should be
installed
in each
dryer's exhaust
duct
to prevent
exhausted
air from
returning
into the dryers and to keep
the exhaust
balance
within the main
exhaust
duct. Unobstructed
air
openings
are required.
Each exhaust duct
should enter the
main duct at an angle
pointing
in the
direction
of the airflow.
Ducts
entering
from the opposite
side
should be staggered
to reduce
the
exhausted
alr from interfering
with the
other ducts,
The
maxlmum angle
of each duct
entering
the main duct should be no
more than 30".
Page 5

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