10
W
M
Step 3
Remove the polystyrene block (PB)
after pouring the screed� Now insert the
box into the resulting floor recess on
a mortar bed
*
(M) and install the conduits
into the openings of the box �
*
Attention!
The height of the mortar bed must be
measured so that the distance ’t’ between
the spirit level (W) and the screed (E) is
as large as the subsequent covering thick-
ness� In addition, the mortar bed must
be designed for the corresponding load
on the floor socket�
W
2
E
t
