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19
Special provisions for mobile home
installations:
The exhaust vent must be securely fastened to a noncombustible
portion of the mobile home structure and must not terminate
beneath the mobile home. Terminate the exhaust vent outside.
Determine vent path:
■ Select route that will provide straightest and most direct path
outdoors.
■ Plan installation to use fewest number of elbows and turns.
■ When using elbows or making turns, allow as much room
as possible.
■ Bend vent gradually to avoid kinking.
■ Use as few 90° turns as possible.
Determine vent length and elbows needed
for best drying performance:
■ Use following “Vent System Chart” to determine type of vent
material and hood combinations acceptable to use.
NOTE: Do not use vent runs longer than those speci ed
in “Vent System Chart.” Exhaust systems longer than those
speci ed will:
■ Shorten life of dryer.
■ Reduce performance, resulting in longer drying times and
increased energy usage.
The “Vent System Chart” provides venting requirements that
will help achieve best drying performance.
Number of
90° turns
or elbows
Type
of vent
Box/louvered
hoods
Angled
hoods
0 Rigid metal 64 ft. (20 m) 58 ft. (17.7 m)
1 Rigid metal 54 ft. (16.5 m) 48 ft. (14.6 m)
2 Rigid metal 44 ft. (13.4 m) 38 ft. (11.6 m)
3 Rigid metal 35 ft. (10.7 m) 29 ft. (8.8 m)
4 Rigid metal 27 ft. (8.2 m) 21 ft. (6.4 m)
Vent System Chart
INSTALL VENT SYSTEM
12" min.
(305 mm)
12" min.
(305 mm)
Install exhaust hood
1.
Install exhaust hood and use caulking compound to seal
exterior wall opening around exhaust hood.
Connect vent to exhaust hood
2.
Vent must t over the exhaust hood. Secure vent to exhaust
hood with 4" (102 mm) clamp. Run vent to dryer location
using straightest path possible. Avoid 90° turns. Use clamps
to seal all joints. Do not use duct tape, screws, or other
fastening devices that extend into interior of vent to secure
vent, because they can catch lint.
Number of
90° turns
or elbows
Type
of vent
Box/louvered
or angled hoods
0 Rigid metal 160 ft. (48.8 m)
1 Rigid metal 150 ft. (45.7 m)
2 Rigid metal 140 ft. (42.7 m)
3 Rigid metal 130 ft. (39.6 m)
4 Rigid metal 120 ft. (36.6 m)
5 Rigid metal 110 ft. (33.5 m)
Vent System Chart
(29" Wide Long Vent WED/WGD4870
and WED/WGD4975 Models Only)
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