GE GFDN120EDWW - Manual (Page 4)

4
Installation Instructions
3 EXHAUST INFORMATION
WARNING -
IN CANADA AND IN THE
UNITED STATES, THE REQUIRED EXHAUST DUCT
DIAMETER IS 4 in (102mm). DO NOT USE DUCT
LONGER THAN SPECIFIED IN THE EXHAUST LENGTH
TABLE.
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• Increase the drying times and the energy cost.
• Reduce the dryer life.
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The correct exhaust installation is YOUR RESPONSIBILITY.
Problems due to incorrect installation are not covered by the
warranty.
Remove and discard existing plastic or metal foil transition duct
and replace with UL listed transition duct.
The MAXIMUM ALLOWABLE duct length and number of bends
of the exhaust system depends upon the type of duct, number
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noted below. The maximum duct length for rigid metal duct is
shown in the table below.
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EXHAUST SYSTEM CHECK LIST
HOOD OR WALL CAP
• Terminate in a manner to prevent back drafts or entry of birds or other wildlife.
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clogging.
• Never install a screen in or over the exhaust duct. This could cause lint build up.
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4" DIA.
4"
4" DIA.
4" DIA.
2-1/2"
RECOMMENDED MAXIMUM LENGTH
Exhaust Hood Types
Recommended
No. of 90°
Elbows
Rigid
Metal
Rigid
Metal
150 Feet
135 Feet
125 Feet
115 Feet
105 Feet
125 Feet
115 Feet
105 Feet
95 Feet
85 Feet
0
1
2
3
4
Use only for short
run installations
5 95 Feet 75 Feet
EXHAUST LENGTH
FOR LONG VENT MODELS
4" DIA.
4"
4" DIA.
4" DIA.
2-1/2"
RECOMMENDED MAXIMUM LENGTH
Exhaust Hood Types
Recommended
No. of 90°
Elbows
Rigid
Metal
Rigid
Metal
90 Feet
60 Feet
45 Feet
35 Feet
25 Feet 60 Feet
45 Feet
35 Feet
25 Feet
15 Feet 0
1
2
3
4
Use only for short
run installations
EXHAUST LENGTH
FOR NORMAL VENT MODELS