Controlled Products Systems Group LA400 - Manual (Page 4)

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The LA400 is intended for use with vehicular swing gates. The opener can be used in Class I, Class II and Class III applications.
CLASS I – RESIDENTIAL VEHICULAR GATE OPERATOR
A vehicular gate operator (or system) intended for use in a home of one-to four single family dwelling, or a garage
or parking area associated therewith.
CLASS II – COMMERCIAL/GENERAL ACCESS VEHICULAR GATE OPERATOR
A vehicular gate operator (or system) intended for use in a commercial location or building such as a multi-family
housing unit (five or more single family units) hotel, garages, retail store or other building servicing the general
public.
CLASS III – INDUSTRIAL/LIMITED ACCESS VEHICULAR GATE OPERATOR
A vehicular gate operator (or system) intended for use in a industrial location or building such as a factory or
loading dock area or other locations not intended to service the general public.
SAFETY ACCESSORY SELECTION
All UL325 compliant LiftMaster gate operators will accept external
entrapment protection devices to protect people from motorized gate
systems. UL325 requires that the type of entrapment protection
correctly matches each gate application. Below are the four types of
entrapment protection systems recognized by UL325 for use on this
operator.
ENTRAPMENT PROTECTION TYPES
Type A: Inherent obstruction sensing system, self-contained within the
operator. This system must sense and initiate the reverse of
the gate within two seconds of contact with a solid object.
Type B1: Connections provided for a non-contact device, such as a
photoelectric eye can be used as a secondary protection.
Type B2: Connections provided for a contact sensor. A contact device
such as a gate edge can be used for secondary protection.
Type E: Built-in audio alarm. Examples include sirens, horns or
buzzers.
NOTE: UL requires that all installations must have
warning signs placed in plain view on both sides of
the gate to warn pedestrians of the dangers of
motorized gate systems.
UL325 ENTRAPMENT PROTECTION
REQUIREMENTS
The chart above illustrates the entrapment protection requirements
for each of the three UL325 classes.
In order to complete a proper installation you must satisfy the
entrapment protection chart shown above. That means that the
installation must have one primary means of entrapment protection
and one independent secondary means of entrapment protection.
Both primary and secondary entrapment protection methods must
be designed, arranged or configured to protect against entrapments
in both the open and close directions of gate travel.
For Example: For a slide gate system that is installed on a
single-family residence (UL325 Class I) you must provide the
following: As your primary type of entrapment protection you must
provide Type A inherent (built into the operator) entrapment sensing
and at least one of the following as your secondary entrapment
protection: Type B1- Non-contact sensors such as photoelectric
eyes, Type B2- Contact sensors such as gate edges.
Primary
Type
Class
I and II
Class III A, B1 or B2
A, B1,
B2 or E
A, B1 or
B2
A
UL325 Swing and Gate Barrier
Installation (Arm) Operator
Secondary
Type
Moving Gate Can Cause
Injury or Death
KEEP CLEAR! Gate may move at any
time without prior warning.
Do not let children operate the gate or
play in the gate area.
This entrance is for vehicles only
Pedestrians must use separate entrance
Gate Operator Entrapment Protection
Class
U L 3 2 5 M O D E L C L A S S I F I C A T I O N S