English
14
WILO SE 10/2010
Emergency drain connection (diaphragm hand pump)
It is always recommended to install a diaphragm hand pump (accessory) for draining the
tank in an emergency. Four connecting pieces (
∅
50 mm) are available near the floor for
this purpose. The connection is established according to Fig. 8 with the supplied DN 50
hose section and hose clamps.
7.3.3 Basement drainage
According to EN 12056-4, a pump sump is to provided for the automatic drainage of the
installation room for faeces lifting units (Fig. 9).
• Select the pump (Pos. 10) according to the delivery head of the unit. The dimensions of the
pit in the floor of the installation room should be at least 500 x 500 x 500 mm.
Fig. 7: Ventilation connection and tank connection for two tanks
1
Hose Ø 160 x 180 mm
2
Hose clamps, 160-180/12
3
Hose, Ø 78 x 130 mm
4
Hose clamps, 80-100/12
1
2
2
3
4
4
3
280
60
Fig. 8: Emergency drain connection (diaphragm hand pump)
• The connecting piece is opened by sawing off (Pos. 1) the
base or with a suitable keyhole saw (Pos. 2).
• Remove any burrs and excess material.
• Establish the connections carefully with the supplied hose
section and hose clamps.
15
1
2
