Requirements on installation at site (to EN 12056-4 or
EN 12050-1, ...)
▪ Domestic waste water which occurs below the flood level
must be discharged into the public *er by means of a
lifting unit.
▪ Surface water which occurs below the flood level outside
the building must be discharged into the public *er
separately from the domestic waste water by means of a
lifting unit which is positioned outside the building.
If the responsible authorities have not specified a flood
level, the flood level is taken to be at least the street level
(including footways) at the connection point.
▪ The flow velocity in the discharge line must equal
between 0.7 m/s and 2.3 m/s.
▪ Lifting units must not be installed in outdoor pits.
▪ Install all electrical connections (e.g. sockets, CEE plugs)
and alarm switchgears in dry rooms protected against
flooding.
▪ The effective volume of the lifting unit must be greater
than the volumetric content of the discharge line up to
the backflow loop.
▪ Installation room:
– Sufficiently lit
– Well ventilated
– The rooms must be dimensioned so as to ensure that
there is a working area of at least 60 cm width and
height around and above all parts to be operated and
serviced.
Installation in suitable installation rooms only;
unprotected outdoor installation is impermissible!