User manual CHAMBERLAIN 801221 SCHEMA

[. . . ] Floor installation (optional) Attach with concrete anchors (A) (not provided). Wall installation (optional) Fasten 2x4 to wall with lag screws (not provided). [. . . ] Wall installation (optional) Fasten 2x4 to wall with lag screws (not provided). Wall installation with extension brackets (A) (optional) Attach with concrete anchors (not provided). Using the four locking connectors, insert the new wire with the existing wire by color: white/black with white black, white with white. Insert the wire all the way into the connector; once crimped, the connector cannot be re-used. The indicator lights in both safety sensors will glow steadily if wiring connections and alignment are correct. Without a properly installed safety reversing sensor, persons (particularly small children) could be SERIOUSLY INJURED or KILLED by a closing garage door. 8 cm) board (A) (or a 2x4 laid flat) on the floor, centered under the garage door. If the door stops on the obstruction, it is not traveling far enough in the down direction. Increase the DOWN limit by turning the DOWN limit adjustment screw counterclockwise 1/4 turn. NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down position. [. . . ] Increase the DOWN limit by turning the DOWN limit adjustment screw counterclockwise 1/4 turn. NOTE: On a sectional door, make sure limit adjustments do not force the door arm beyond a straight up and down position. [. . . ]