■STEP 2 ATTACH EXPANSION UNIT TO MAIN CONTROLLER.
CAUTION: Do not place either the main controller or the expansion unit face down. Remove the expansion unit, brace, strap, and ½” screws from the box. Slide the brace into the four guides on the back of the expansion unit on the side with the exposed connector. If the brace does not go on easily, do not force it. Turn the brace around and try the other side. Using two of the ½” screws, attach the brace to the expansion unit.
Remove the small strip of plastic from the recessed area on the right side of the main controller by prying with a flathead screwdriver between the back of the controller and the strip. Break the tabs and discard the strip.
Place the two controllers side by side, with the brace in the center. Using the brace as a guide, push the two controllers together until the connectors are fully engaged. Using two of the ½“ screws, fasten the brace to the main controller.
Remove the panel (front cover) from each controller by first loosening the screw located at the bottom center of each controller. Lift the panel up and away from the controller; the screw will still be in the panel. Remove and discard the packing material inside the panel. Using the remaining ½” screws, attach the strap between the main and expansion controllers in the middle of the front faces.
EXPANSION
E x p a n s i o n U n i t I n s t a l l a t i o n 3