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5.2.3 Pressure pipe
DIN 19 760 part 3:
“...After breaking the discharge flow, backflow preventers must
automatically prevent the backflow of the sewage from the pressure pipe. With the activation
of the discharge, the backflow preventer must open automatically...“
This necessary non-return valve is already integrated into the pump station.
It is recommended to mount a gate valve behind the non-return valve, in order to facilitate the
cleaning and/or a possible replacement of the non-return valve
The included seal ring (o-ring DN 100) for the connection of pressure sire of the pump station
is mounted into the groove of the pressure outlet. The gate or, if no gate shall be used, the
flange piece DN 100 included in the scope of delivery shall be fixed using 4 screws M 16.
Otherwise the flange piece is mounted onto the gate. The flexible hose is plugged onto the
flange piece and fixed using both included hose clamps. Now, the pressure pipe is inserted
into the flexible hose and fixed using the 2
nd
hose clamp. The pressure pipe must be laid in a
constantly inclining manner and without unnecessary steps in a bend via the level of backed-
up water and afterwards constantly declining to the sewer junction. If necessary, pipelines and
valves must be supported using pipe clamps or consoles
5.2.4 Ventilation
The tank ventilation (DN 75) is directly connected to the breather pipe of the building or
installed through the roof.
5.2.5 Electrical connection
Safety regulations
All used electric devices must comply with the standard IEC 364 / VDE 0100, that
means, that the electrical sockets must be equipped with earthing terminals.
The electrical connection may only be effected by an electrically skilled person! The
relevant VDE regulations 0100 must be respected!
The mains to which the unit is connected must be equipped with a highly sensitive
separate earth leakage circuit breaker IA <30 mA in front of the control or, in order to
prevent a failure of the control when the earth leakage circuit breaker is activated,
one earth leakage circuit breaker per pump must be installed between the control and
the pump. In case of an installation in bath or shower rooms, the respective DIN VDE
0100 part 701 regulations must be respected.
Please respect the regulations of the EN 12 056-4.
In case of a three-phase current supply, an external protection with automatic circuit
breakers of characteristic K, in general 3-terminal mechanically blocked, must be
executed. In doing so, the complete disconnection from supply is ensured and a 2-
phase operation is excluded.
All electrical devices, such as control, alarm sensor and power socket must be
installed on a flood-proof position in dry rooms.
Attention! Prior to every assembly and disassembly of the pump or other works on
the unit, the unit must be disconnected from the mains.
Due to an overload, the motor can overheat. Never touch the heat surfaces of the
motor in case of an overheating.
In case of using an extension cable, it must comply with the included connector
cable concerning quality.
The switching box must be mounted in such a way that the blue pneumatic hose for the
pneumatic level control can be laid in a constantly inclining manner. This is indispensable to
ensure a proper function of the automatic control. The connector of the simplex unit (CEE-
and/or earthing type) is directly connected before commissioning.
