Wilo -DrainLift M1/8 Einbau- Und Betriebsanleitung Seite 33

Fig. 11: Suction pipe connection for the diaphragm hand pump
Fig. 12: Installation example
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Installation and operating instructions Wilo-DrainLift M1/8
7.3.5 Drainage of cellars
To automatically drain the installation area of faeces lifting units, a pump sump is to be put
in place in accordance with ENb12056-4 (Fig. 12).
• Design pump (item 10) according to the delivery head of the unit. The dimensions of the
pit in the floor of the installation area should be at least 500 x 500 x 500 mm.
• By switching, a 3-way cock (item 11, accessories) allows both the tank to be manually drai-
ned as well as the pump sump using a diaphragm hand pump (Pos. 12).
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3. Bevel the suction pipe (outer Ø 50 mm) at the
suction end (approx. 30° to 45°) and push it
through the seal all the way to the floor using
a lubricant.
4. Make sure the seal has an exact fit. Secure
the suction pipe using clamps so that it
doesn't slip out of the tank opening.
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Backflow level (usually upper edge of street)
1 Ventilation pipe (over roof)
2 Pressure pipe
3 Inlet
4 Gate valve for inlet pipe
5 Fitting support for weight relief
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6 Gate valve for pressure pipe
7 Non-return valve
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8 Tank draining pipe
9 Pump sump drainage pipe
10 Drainage pump
11 3-way cock
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12 Diaphragm hand pump
13 EC-Drain LS1 switchgear
English
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