LiftMaster LA500 LA500 Manual - Page 4

SAFETY UL325 MODEL CLASSIFICATIONS CLASS I - RESIDENTIAL VEHICULAR GATE OPERATOR A vehicular gate operator (or system) intended for use in a home of one-to four I single family dwellings, 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, garage, retail store or other building servicing the general public. CLASS III - INDUSTRIAL/LIMITED ACCESS VEHICULAR GATE OPERATOR III 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 location not intended to service the general public. CLASS IV- RESTRICTED ACCESS VEHICULAR GATE OPERATOR A vehicular gate operator (or system) intended for use in a guarded industrial location or building such as an airport security area or other restricted access locations not servicing the general public, in which unauthorized access is prevented via supervision by security personnel. UL325 ENTRAPMENT PROTECTION REQUIREMENTS This chart illustrates the entrapment protection requirements for the UL325 classes. GATE OPERATOR ENTRAPMENT PROTECTION UL325 Classification Swing Gate Operator Primary Type Secondary Type CLASS I-CLASS IV A B1 or B2 In order to complete a proper installation you must satisfy the entrapment protection chart shown. 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 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 • Type B1 • Type B2 - Inherent (built into the operator) entrapment sensing and at least one of the following as your secondary entrapment protection: Non-contact sensors such as photoelectric sensors, Contact sensors such as gate edges 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. 2 UL325 MODEL CLASSIFICATIONS II IV