Contura C 460 Installation Instruction page 15

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The gap between the rebate in the concrete components and
the rear panel must be carefully sealed with silicone. This is
necessary to prevent the wrong kind of convection currents in
the warm air. Squeeze out a liberal amount of silicone all along
the edge of the rear panel. Any surplus pressed out when the
con crete sections are fitted can be smoothed by hand if you
first dip your finger in soapy water.
Cement the side columns in place left and right on the
marble shelf.
Use the full-threaded bolts to anchor the shelf to the plinth.
Before tightening the nut, make sure that the bolts are pushed
fully into the grooves and that the rectangular washers cover
the groove entirely.
Cement the mantelshelf in place on top of the side columns.
GB
13