Chamberlain GA400D User Manual

Introduction 4

  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. 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. Specific 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.