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Installation and operating instructions Wilo-DrainLift XXL
15
• A three-way cock (Pos. 11, accessory) can be switched over to allow the manual drainage
of both the tank as well as the pump sump by means of a diaphragm hand pump (Pos. 12).
7.4 Electrical connection
DANGER! Risk of fatal injury!
Improper electrical connections pose a risk of fatal injury due to electric shock.
• Have the electrical connection established only by an electrician approved by the local
electricity supplier and in accordance with the applicable local regulations.
• Observe the installation and operating instructions for the switchgear and the acces-
sories.
• Disconnect the mains prior to any work.
• Wire the switchgear with the Zener barrier, level sensor and pumps in accordance with the
supplied wiring diagram.
• The current type and voltage of the mains connection must correspond to the details on
the rating plate.
NOTE: To increase the operational reliability, it is mandatory for an automatic circuit
breaker (which disconnects all power leads) with K characteristic to be used.
• Earth the unit according to regulations.
• Lay the connecting cable in accordance with the applicable standards/regulations and the
wire assignments.
• Provide a residual-current-operated protection switch
≤
30 mA in accordance with the
applicable local regulations.
• The switchgear, Zener barrier and alarm must be installed in dry, overflow-proof rooms.
The national regulations are to be observed for the positioning [in Germany: VDE 0100].
• Ensure the separate supply of the alarm switchgear in accordance with the rating plate
data. Connect the alarm switchgear.
• Apply a clockwise rotating field to the switchgear.
• The technical connection conditions of the local energy supply company are to be
observed for the connection.
Fig. 9: Installation example
Backflow level (usually top edge of street)
1
Ventilation line (via roof)
2
Pressure pipe with backflow loop
3
Inlet
4
Gate valve for inlet pipe
5
Valve support for weight relief
(recommended)
6
Gate valve for pressure pipe
7
Non-return valve
8
Tank drainage pipe
9
Pump sump drainage pipe
10
Drainage pump
11
Three-way cock
12
Diaphragm hand pump
13
DrainControl 2 switchgear
14
Zener barrier
0I
1
2
3
4
5
6
7
8
9
10
11
12
13
