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n Installed in a confined area:
If the dryer is installed in a confined area such as a
bathroom or closet, provision must be made for enough
air for combustion and ventilation. Check governing codes
and ordinances or refer to the “Recessed Area and Closet
Installation Instructions” in the “Location Requirements”
section.
Gas Supply Pressure Testing
A 1/8" NPT minimum plugged tapping, accessible for gauge
testing, must be installed immediately downstream of the
installed shut-off valve to the dryer.
The dryer must be disconnected from the gas supply piping
system during any pressure testing of the system at test
pressures in excess of 1/2" psig.
The expected pressures for the gas supply are listed in Inches
of Water Column in the table below:
Minimum
Maximum
Natural Gas
5.2
10.5
LP Gas
8.0
13.0
Venting Requirements
WARNING:
To reduce the risk of fire, this dryer MUST BE
EXHAUSTED OUTDOORS.
IMPORTANT: Observe all governing codes and ordinances.
n The dryer exhaust must not be connected into any gas vent,
chimney, wall, ceiling, attic, crawlspace, or a concealed space
of a building. Only rigid or flexible vent shall be used for
exhausting.
n Only a 4" (102 mm) heavy, metal exhaust vent and clamps
may be used.
n Do not use an exhaust hood with a magnetic latch.
n Use clamps to seal all joints. Do not use screws or other
fastening devices that extend into the interior of the duct
and catch lint. Do not use duct tape.
n Do not use plastic or metal foil vent.
Rigid metal vent:
n Recommended for best drying performance and to avoid
crushing and kinking.
Flexible metal vent (acceptable only if accessible to clean):
n Must be fully extended and supported in final dryer location.
n Remove excess to avoid sagging and kinking that may result
in reduced airflow and poor performance.
n Do not install in enclosed walls, ceilings, or floors.
n The total length should not exceed 7
/
ft. (2.4 m).
3
4
An exhaust hood should cap the vent to prevent rodents and
insects from entering the home or business.
Exhaust hood must be at least 12" (305 mm) from the ground
or any object that may be in the path of the exhaust (such as
flowers, rocks, or bushes).
If using an existing vent system, clean lint from the entire length
of the 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.
Plan installation to use the fewest number of elbows and turns.
Good
Better
Allow as much room as possible when using elbows or making
turns. Bend vent gradually to avoid kinking.
Vent outlet is located at the back of the dryer, at bottom center.
The vent can be routed up, down, left, right, behind the dryer,
or straight out the back of the dryer. See “Product Dimensions”
in the “Location Requirements” section.
Make-up air:
Although each single-load dryer should have an unobstructed
outdoor air opening of 24 in
(154 cm
) (based on 1 square
2
2
inch [6.5 cm
] per 1,000 Btu [252 kcal]), common make-up air
2
openings are also acceptable. Set up common openings so that
the make-up air is distributed equally to all of the dryers. Keep
in mind that the coverage area must be increased by 33% to
account for use of registers or louvers over the openings. Also,
make-up air openings should not be installed near the location
of exhaust vents exiting the building.
Vent System Length
Maximum length of vent system depends upon the type of
vent used, number of elbows, and type of exhaust hood.
The maximum length for rigid vent is shown in the chart.
Maximum Vent Length
4" (102 mm) Diameter Exhaust Hoods
2
⁄
" (63.5 mm) Angled
Box
Louvered
1
2
Vent System Chart (Rigid Metal Vent)
No. of 90°
Box Hood and
Turns
Louvered Style
Angled Hood Style
0
130 ft. (39.6 m)
129 ft. (39.3 m)
1
125 ft. (38.1 m)
119 ft. (36.3 m)
2
115 ft. (35.1 m)
109 ft. (33.2 m)
3
106 ft. (32.3 m)
100 ft. (30.5 m)
4
98 ft. (29.9 m)
92 ft. (28.0 m)
Page 11
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