LiftMaster GH GH LOGIC 3 Manual - Page 1
LiftMaster GH Manual
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L 3 ogic OWNER'S MANUAL GH INDUSTRIAL DUTY COMMERCIAL DOOR OPERATOR This Operator Features the Enhanced INTENAN MA E M E C AL E PATENT PENDING R T T SYS The Maintenance Alert System™ allows the installer to set an internal Maintenance Cycle Counter. The Logic 3 operator incorporates a self-diagnostic feature built into the (MAS) Maintenance Alert System LED. An LED on the 3-button station will signal when the set number of cycles/ months is reached or when the operator requires immediate service. INTENDED FOR PROFESSIONAL INSTALLATION ONLY Visit www.LiftMaster.com to locate a professional installing dealer in your area. 2 YEAR WARRANTY Radio Receiver Built on Board 315MHz NOT FOR RESIDENTIAL USE Serial # Box Installation Date A SAFETY DEVICE IS HIGHLY RECOMMENDED