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ONE: PREPARATION
PREPARATION
2. Ensure the entire mounting surface is
completely flat. You will need the width
of one guide rail (C) on each side of the
opening face, and the height of the box
housing (A) above the opening.
If necessary, remove the trim around
the opening so the mounting surface is
completely flat.
1
3. Using your #2 Robertson bit, remove
the two screws that secure the cover
lid to the box housing (A). Carefully
remove the lid and store in a safe place
until the final stage of the installation.
1. Remove the protective plastic on the
exterior of the box housing (A).
