2.6
FITTING THE GRATINGS
If the external grating is accessible to prevent its
removal, it is recommended to fasten it to the wall
with wall plugs and screws with a diameter of 6 mm.
To fit the external two gratings please proceed as follows:
Familiarise yourself with the fitting of the grating to the
tube, before installation. Insert the cords through the
centre of the grating.
One grating fits on the outside of the tube and the other
fits inside. The air intake is the smaller hole and the
grating therefore fits on the outside of the air intake tube.
Insert the supplied cord into the hole.
Fold the outer grating in half grasping the cord with your
free hand.
Insert your arm inside the pipe with the grating and push
all the way to the outside.
Let the grating unfold and pull the cord towards you.
One grating fits on the outside of the tube and the other
fits inside.
With a little patience and manipulation the two gratings
will fit the end of the tubes.
Grasping the cord, insert your fingers between the fins
and pull the grating towards you until it is properly
positioned in the pipe, keeping the fins in a vertical
position.
Tighten the cord and fasten it to the dent on the internal
flanges.
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