Chamberlain LA412 User Manual

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  1. READ and FOLLOW all instructions.
 2.  The gate operator is intended for use with Class I 
vehicular swing gates.
     Class I denotes a vehicular gate operator (or system) 
intended for use in a home of one to four single 
family dwellings, or a garage or parking area associated 
therewith.
     Install the gate operator only when the operator is 
appropriate for the construction and the usage class of 
the gate.
 3.  Gate operating system designers, installers and users 
must take into account the possible hazards associated 
with each individual application. Improperly designed, 
installed or maintained systems can create risks 
for the user as well as the bystander. Gate system 
design and installation must reduce public exposure to 
potential hazards. Install the gate operator only when 
the operator is appropriate for the construction of the 
gate and the usage class of the gate. All exposed pinch 
points must be eliminated or guarded.
 4.  A gate operator can create high levels of force during 
normal operation. Therefore, safety features must be 
incorporated into every installation. Specifi c safety 
features include safety sensors.
 5.  The gate must be properly installed and work freely in 
both directions prior to the installation of the gate operator.
 6.  The gate must be installed in a location so that enough 
clearance is provided between the gate and adjacent 
structures when opening and closing to reduce the risk 
of entrapment. Swinging gates shall not open into public 
access areas.
 7.  
The operator is intended for use only on gates used for 
vehicles. Pedestrians must be supplied with a separate 
access opening. The pedestrian access opening 
shall be designed to promote pedestrian usage. The 
pedestrian access shall be located such that persons 
will not come in contact with the moving vehicular gate.
 8.  Pedestrians should never cross the pathway of a 
moving gate. The gate operator is not acceptable for 
use on any pedestrian gate. Pedestrians must be 
supplied with a separate pedestrian access.
 9.  For an installation utilizing non-contact sensors (safety 
sensors), see product manual on the placement of 
non-contact sensors (safety sensors) for each type of 
application.
  a. 
 
Care shall be exercised to reduce the risk of 
nuisance tripping, such as when a vehicle trips the 
safety sensor while the gate is still moving.
  b. 
 
One or more non-contact sensors (safety sensors) 
shall be located where the risk of entrapment or 
obstruction exists, such as the perimeter reachable 
by a moving gate or barrier.
 10.  For a gate operator utilizing a contact sensor such as 
an edge sensor:
  a. 
 
 A hard wired contact sensor shall be located and 
its wiring arranged so the communication between 
the sensor and the gate operator is not subject to 
mechanical damage.
  b. 
 
One or more contact sensors shall be located on 
the inside and outside leading edge of a swing gate. 
Additionally, if the bottom edge of a swing gate is 
greater than 6" (152 mm) above the ground at any 
point in its arc of travel, one or more contact sensors 
shall be located on the bottom edge.
 11.  Never mount any device that operates the gate 
operator where the user can reach over, under, around 
or through the gate to operate the controls. Controls 
are to be placed at least 6' (1.8 m) from any part of the 
moving gate:
  • 
 
 A hard wired control device shall be located and its 
wiring arranged so that communication between the 
control device and the gate operator is not subject to 
mechanical damage.
12.  Controls intended to be used to reset an operator after 
2 sequential activations of the entrapment protection 
device or devices must be located in the line of sight 
of the gate, or easily accessible controls shall have a 
security feature to prevent unauthorized use. Never 
allow anyone to hang on or ride the gate during the 
entire travel of the gate.
Introduction 4
SAFETY INSTALLATION INFORMATION