LiftMaster RSL12U RSL12U Troubleshooting Guide Manual - Page 3

BEFORE YOU BEGIN 2016 UL COMPLIANT GATE OPERATORS New UL 325 standards for vehicular gate operators go into effect in January of 2016. The new standard will require gate operators to monitor for fault conditions of external entrapment devices. LiftMaster has not only updated their line of gate operators to meet the new UL 325 standard, they have also taken the opportunity to add a common user interface and common feature sets across the line to increase performance, safety and accessibility. All LiftMaster UL compliant gate operators will come with external monitored retro-reflective photoelectric sensors (model LMRRU). These operators contain an inherent (internal) entrapment protection system and REQUIRE the addition of an external monitored entrapment protection system (non-contact photoelectric sensor or contact edge sensor) for EACH entrapment zone prior to gate movement. A monitored device sends a pulsed signal to the operator so the operator is aware of the device. If the operator does not receive the signal from the device it will not run. An entrapment zone is every location or point of contact where a person can become entrapped between a moving gate and a stationary object. Your application may contain one or many entrapment zones. Property owners are obligated to test entrapment protection devices monthly. Use only LiftMaster approved entrapment protection devices. LiftMaster Monitored Retro-Reflective Photoelectric Sensors (Model LMRRU) 2