LiftMaster GH GT- Logic 4 Installation Manual - Page 1

INSTALLATION MANUAL H, J, AND HJ T AND APT L 4 ogic L3 GH THIS PRODUCT IS TO BE INSTALLED AND SERVICED BY A TRAINED DOOR SYSTEMS TECHNICIAN ONLY. Operators are shipped in C2 operating mode. Visit www.liftmaster.com to locate a professional installing dealer in your area. CONTACT INFORMATION GT 2 YEAR WARRANTY Serial # Box Installation Date THIS OPERATOR FEATURES THE ENHANCED M A E M E C AL INTENAN E PATENT PENDING R T T SYS The Maintenance Alert System™ allows the installer to set an internal Maintenance Cycle Counter. The Logic 4 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. NOT FOR RESIDENTIAL USE 315MHz Radio Receiver Built on Board