Wilo -DrainLift M1/8 Einbau- Und Betriebsanleitung Seite 31

Fig. 9: Preparation of the tank connecting pieces to be connected
Fig. 10: Installation of inlet pipe (DNb50) at a low inlet position
Installation and operating instructions Wilo-DrainLift M1/8
NOTE: Check to make sure that the cut diameter is 124 mm for DNb100 or 175 mm for
DNb150 once in a while, since the leak-tightness of the pipe connection depends on this
decisively.
• Deburr and smooth the cut surface for a clean seal fit.
• Insert an inflow seal (Fig. 8, item 1)
1. Moisten the inside of the seal with a lubricant
2. Push the hose clip onto the pipe and push the inlet pipe in about approx. 20-30 mm
3. Firmly connect the inflow pipe and inflow seal with a hose clip.
In the inlet pipe in front of the tank, a gate valve (accessory) is required when the unit is
installed within a building in accordance with ENb12056-4 (Fig. 12).
Inlet (DNb50)
In addition to the main inlet, an inlet (DNb50) can be connected to one of the two combi-
nation connecting pieces (DNb50/DNb70) on the tank roof.
Another inlet (DNb50) can be installed at the connection point for the diaphragm hand
pump.
7.3.3 Ventilation (DNb70)
In accordance with EN 12050-1, the unit must be connected to a venting line, which vents
via the roof, and is absolutely necessary for the unit to function perfectly. The connection
is made on one of the two combination connecting pieces (DNb50/DNb70) to the tank roof
using the enclosed Konfix connector. For this, the bottom of the connecting piece (DNb70)
is sawed off about 15 mm above the lip (see Fig. 9). Remove burrs and any excess material.
Push the Konfix connector up to the inner collar and fasten with the enclosed hose clip.
Afterwards, open by pulling off the tag and pushing in the venting pipe with some lubri-
cant. Secure the venting pipe against slipping out using clamps, and always install with a
downward incline toward the unit.
The connecting piece is opened by sawing off the lug bot-
tom (DNb50) about 15 mm above the lip (Fig. 9).
Remove burrs and any excess material.
Connect carefully with the enclosed hose section and hose
clips or with a commercially available Konfix connector.
To establish the connection to the tank, see 7.3.4 Connec-
tion of an emergency disposal (Fig. 11).
Secure the inlet pipe using clamps so that it can't slip out of
the tank opening (Fig. 10).
English
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