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DETERMINEVENTLENGTH
Maximum Exhaust Lengths:
* Rear Exhaust. The maximum length of
the rear exhaust system depends on
the type of vent, the number of elbows,
and the type of exhaust hood. Refer
to the chart below.
* Side or Bottom Exhaust. Side or
bottom exhaust adds a 90 ° turn inside
the dryer. To determine maximum
exhaust length, add one 90 ° turn to
the chart.
EXHAUST HOOD TYPE
(Uae4"
if possible)
Maximum length of 4-inch
diameter heavy metal vent.
64 ft. 58 ft.
54 ft. 48 ft.
44 ft. 38 ft.
35 ft. 29 ft.
27 ft. 21 ft.
Number of
90oTurns
0
1
2
3
4
Number of Maximum length of 4-inch
900 Turns diameter flexible metal vent.
0 36 ft. 28 ft.
1 31 ft. 23 ft.
2 27 ft. 19 ft.
3 25 ft. 17 ft.
4 23 ft. 15 ft.
If a combination of heavy metal vent and
flexible metal vent is used, use instructions
for flexible metal vent.
STANDARD OFFSET CONNECTIONS
Using 4-inch heavy metal vent:
NOTE: Do not secure exhaust vent joints
with screws. Screws can catch lint and
slow the drying process. Instead, use
clamps to secure exhaust vent joints.
STEP 1. Install a 4-inch metal elbow on
the hood and on the dryer exhaust outlet.
STEP 2. Measure the length of 4-inch
metal vent needed to connect the two
elbows.
Elbow j Wall
Exhaust
_t hood
_.Dust
tape&
clamps
NNSee
STEP2
Elbow
Ducttape&
clamps
The vent usually comes in 2-foot lengths.
Use tin snips to cut the vent 3 inches
longer than your measurement in order
to make a connection.
STEP 3. Place a clamp on each end of
vent elbow and connect elbow to dryer
outlet. Tape the joint with duct tape.
Tighten clamp.
Tape
Clamp
21
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