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Installation and Operations Manual — LXL Gate Operator
2. Effect On Installation
These provisions will have several effects on gate and fence dealers:
• Gate and fence dealers should look for an indication of the Class of each operator, which
will be specified by the gate operator manufacturer.
• Fence dealer sales personnel must match the site application with the Class of operator. The
gate operator manufacturer should be contacted if there is any question about the site
application.
• Both primary and secondary safety devices must be provided and matched to both the
operator and site conditions. Although the gate operator manufacturer may provide or specify
these devices, the gate/fence dealer should insure that they are installed and correctly
matched. Any questions again should be directed to the gate operator manufacturer.
• Warning signs must be permanently affixed to the gate panel. UL-325 includes specific
requirements on the format, content, and placement of these signs.
2.1 Factors Related To Gate Construction And Installation
• Vehicular gate operators should ONLY be used on vehicular gates and never pedestrian
gates.
• A sliding gate should work smoothly with easy rolling/movement in both directions, with
all exposed pinch points eliminated or guarded, prior to the installation of the operator.
• Controls should be as far away from the gate as possible to prevent "reach-through"
occurrences.
• All openings of the horizontal slide gate must be guarded and screened from the bottom of
the gate to a minimum of 4' above the ground to prevent a 2 1/4" diameter sphere from
passing through the openings anywhere in the gate, and in that portion of the adjacent fence
that the gate covers in the open position.
• A minimum of 2 warning signs and placards must be installed and be visible in the area of
the gate.
• All high and low voltage wire runs must comply with local electrical codes.
2.2 Device-Specific Installation Instructions
There are also specific installation requirements for certain types of entrapment protection
devices. These specific requirements emphasize the care and attention that each device must be
given prior to and during installation.
For gate operators utilizing non-contact sensor devices (Type B1), instructions should be
consulted for placement for each application, care should be exercised to reduce the risk of
nuisance tripping, and one or more of these devices must be installed where the risk of
entrapment or obstruction exists.
For gate operators utilizing contact sensor devices (Type B2), several requirements are spelled
out in UL-325. One or more contact sensors shall be located:
B&B ARMR
A Division of B&B Roadway and Security Solutions
10
0054-9001UL Revision A2
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