LiftMaster 8550 8550 Manual - Page 15

Install the Door Control k 1.5 Position the bottom hole of the door control over the screw and slide down into place. 1.6 Lift the push bar up and mark the top hole. 1.7 Remove the door control from the wall and drill a 5/32 inch (4 mm) hole for the top screw. 1.8 Position the bottom hole of the door control over the screw and slide down into place. Attach the top screw. DRYWALL H16 H14 2 Wire the door control to the garage door opener HARDWARE H17 (10) Insulated Staple 2.1 Run the white and red/white wire from the door control to the garage door opener. Attach the wire to the wall and ceiling with the staples (H17) (not applicable for gang box or pre-wired installations). Do not pierce the wire with the staple as this may cause a short or an open circuit. 2.2 Strip 7/16 inch (11 mm) of insulation from the end of the wire near the garage door opener. 7/16" (11 mm) H15 GANG BOX 2.3 Connect the wire to the red and white terminals on the garage door opener. To insert or release wires from the terminal, push in the tab with screwdriver tip. RED WHITE WHITE GREY PRE-WIRED INSTALLATIONS: When wiring the door control to the garage door opener H17 make sure you use the same wires that are connected to the door control. 15