Wilo DrainLift M2/8 Notice De Montage Et De Mise En Service page 31

Fig. 7: Setting up the inlet port (DNb100/DNb150)
Fig. 8: Preparation of the tank connecting pieces to be connected
Installation and operating instructions Wilo-DrainLift M2/8
• To ensure this, screw the level control unit in the domed lid which lies the furthest away
from the entering water flow. The screwed connection of the lid of the level control
unit and inspection opening are identical and can be exchanged.
• Drill a hole for the inlet with a keyhole saw (DNb100 included in delivery, DNb150 accessory)
in one of the tank surfaces intended for this purpose (Fig. 7).
Make sure the excess material in the drill bit is removed completely!
Max. speed 200 rpm; if necessary, put the saw down once in a while to remove drilled
material. If this material isn't completely removed, the tank material heats up and starts to
melt; Interrupt the cutting process, allow to cool and clean the saw; Lower the speed, vary
the feed pressure, and then maybe change the direction of rotation (counterclockwise
rotation max. 200 rpm), until there is no more material.
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. 7, 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. 11).
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.
1
The connecting piece is opened by sawing off the lug bot-
tom (DNb50) about 15 mm above the lip (Fig. 8).
Remove burrs and any excess material.
Connect carefully with the enclosed hose section and hose
clips or with a commercially available Konfix connector.
20-30mm
English
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