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DRYER VENTING REQUIREMENTS
If an Exhaust Hood Cannot be Used
Multiple Dryer Venting
The outside end of main vent should have a sweep elbow
directed downward.
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(A
t
24" min.
12" min.
(610 mm)
(305 re
If main vent travels vertically through the roof, rather than
through wall, install a 180° sweep elbow on end of vent at least
2 ft. (610 mm) above surface of roof.
The opening in wall or roof shall have a diameter 1/2" (13 mm)
larger than vent diameter. Vent should be centered in opening.
*Minimum clearance above
any accumulation of snow,
ice, or debris such as leaves
Do not install screening over end of vent for best performance.
A main vent can be used for venting a group of dryers. The
main vent should be sized to remove 5663 |/min. (200 CFM)
of air per dryer. Large-capacity lint screens of proper design
may be used in main vent if checked and cleaned frequently.
The room where the dryers are located should have make-up
air equal to or greater than CFM of all the dryers in the room.
Back-draft Damper Kit, Part No. 3391910, is available from
your distributor and should be installed in the vent of each
dryer to keep exhausted air from returning into dryers and to
keep exhaust in balance within main vent. Unobstructed return
air openings are required.
Each vent should enter the main vent at an angle pointing in
the direction of the airflow. Vents entering from the opposite
side should be staggered to reduce the exhausted air from
interfering with the other vents.
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The maximum angle of each vent entering the main vent
should be no more than 30°.
Keep air openings free of dry cleaning fluid fumes. Fumes
create acids which, when drawn through the dryer heating
units, can damage dryers and items being cried.
A clean-out cover should be located on the main vent for
periodic cleaning of the vent system.
GAS SUPPLY CONNECTION
Make Gas Connection
A WARNING
Excessive Weight Hazard
Use two or more people to move and install dryer.
Failure to do so can result in back or other injury.
1. Remove red cap from gas pipe on back of dryer.
2. Connect gas supply to dryer. Use a pipe thread compound
approved for the type of gas supplied. If flexible metal
tubing is used, be certain there are no kinks.
If necessary for service, open the toe panel by removing the
2'/" hex-head screws from the bottom of the panel. Then
lift up on the panel while pulling the bottom of the panel
away from the dryer.
3. Open the shut-off valve in the gas supply line and make sure
the dryer has its own gas supply opened.
4. Test all connections by brushing on an approved
noncorrosive leak-detection solution. Bubbles will show
a leak. Correct any leaks found.
15
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