Exhaust Requirements; Mobile Home Installation - Whirlpool 3405338 Installation Instructions Manual

Exhaust
requirements
WARNING
Fire Hazard
Use a heavy metal vent.
Do not use a plastic vent.
Do not use a metal foil vent.
Failure to do so can result in death or
fire.
• Do Not use non-metal flexible vent or
exhaust hoods with magnetic latches.
• Metal exhaust vent must be four inches
in diameter.
• Do Not exhaust dryer into a chimney,
furnace, cold air vent, attic or crawl space,
or any other vent used for venting.
• Do Not install flexible vent in enclosed
walls, ceilings or floors.
Plan the exhaust vent installation
Route the vent
exhaust
outlet
The exhaust
outlet is located
at the center of
the rear of the
dryer.
The exhaust vent can be
routed up, down, left,
right or straight out the
back of the dryer. See
"Recessed area/closet
installation" section,
Panel A, for general
space requirements.
Panel C
Important: Observe all governing codes and
ordinances.
Dryer MUST BE EXHAUSTED to the outside.
Moisture and lint indoors may cause:
• lint to gather around the dryer where it can be
fuel for a fire.
• moisture damage to woodwork, furniture,
paint, wallpaper, carpet, etc.
• housecleaning problems and health problems.
Dura Safe venting products are
TM
recommended and are available from your
dealer.
Four-inch diameter vent is required.
Use a heavy metal vent. Do Not use plastic or
metal foil vent.
Rigid metal vent is recommended to prevent
crushing and kinking.
Flexible metal vent must be fully extended and
supported when the dryer is in
its final position. Remove excess
flexible vent to avoid sagging
and kinking that may result in
reduced air flow.
An exhaust hood should cap
the exhaust vent to prevent
rodents and insects from
entering the home.
Exhaust outlet hood must be
at least 12 inches from the ground or any object
that may be in the path of the exhaust (such as
flowers, rocks or bushes, etc.).
If using an existing exhaust system, clean lint
from entire length of system and make sure
exhaust hood is not plugged with lint.
Replace any plastic or metal foil vent with rigid
metal or flexible metal vent.
Use clamps to seal all joints. Do Not use duct
tape, screws or other fastening devices that
extend into the interior of the vent to secure
vent.
Service check: Back pressure in any exhaust
system used must not exceed 0.6 inches in
water column measured with an incline
manometer at the point that exhaust vent
connects to dryer.
exhaust air flow
better
acceptable
Select the route that will provide the
straightest and most direct path outdoors.
Plan the installation to use the fewest number of
elbows and turns.
When using elbows or making turns, allow as
much room as possible. Bend vent gradually to
avoid kinking.
Determine vent length
The maximum length of the exhaust system
depends upon:
• the type of vent (rigid or flexible metal).
• the number of elbows used.
1. See the exhaust vent length chart that
matches your type hood for the maximum
vent lengths you can use.
Do not use vent runs longer than
specified in exhaust vent length charts.
Exhaust systems longer than specified will:
— accumulate lint creating a potential fire
hazard.
— shorten the life of the dryer.
— reduce performance, resulting in longer
drying times and increased energy usage.
2. Determine the number of elbows you will
need.
3. In the column listing the type of metal vent
you are using (rigid or flexible), find the
maximum length of metal vent on the same
line as the number of elbows.

Mobile home installation

requirements
If codes permit, this appliance is suitable for
mobile home installations. The installation of
the dryer must conform to Manufactured
Home Construction and Safety Standard, Title
24 CFR, Part 3280 (formerly the Federal
Standard for Mobile Homes Construction and
Safety, Title 24, HUD Part 280) or latest
edition.
The dryer must be fastened to the floor.
Order Mobile Home Installation Kit, Part No.
346764, from your dealer. Kit includes the
necessary fastening hardware and detailed
installation instructions. Metal exhaust system
is also available through your dealer.
The dryer must be exhausted outside.
12" min.
floor
enclosed area
The exhaust vent must be securely fastened to
a non-combustible portion of the mobile
home structure. The exhaust system must not
terminate beneath the mobile home.
Preferred —
4"
When you have a 4" hood ...
Number of
90° elbows
0
1
2
3
4
Acceptable —
When you have a 2-1/2" hood ...
Number of
90° elbows
0
1
2
3
4
The maximum length using a 2" x 6" rectangular
vent with 2 elbows and a 2-1/2" exhaust hood is
8 feet.
For exhaust systems not covered by
exhaust vent length charts (such as multiple
unit hookups, plenums, and power-assist
fans), see Service Manual, Part No. 603197.
(To purchase the Service Manual, see your Use
and Care Guide for a toll-free telephone
number.)
outside
wall
skirting
4"
Maximum length of
4" diameter metal vent
Rigid Flexible
(fully extended)
64 ft. 36 ft.
54 ft. 31 ft.
44 ft. 27 ft.
35 ft. 25 ft.
27 ft. 23 ft.
2-1/2"
Maximum length of
4" diameter metal vent
Rigid Flexible
(fully extended)
58 ft. 28 ft.
48 ft. 23 ft.
38 ft. 19 ft.
29 ft. 17 ft.
21 ft. 15 ft.