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Fig. 7: Setting up the inlet port (DN 100/DN 150)
Fig. 8: Preparation of the tank connecting pieces to be connected
Installation and operating instructions Liftson L
• Drill a hole for the inlet with a keyhole saw (DN 100 included in delivery, DN 150 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 is not 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 (anti-clockwise
rotation max. 200 rpm), until there is no more material.
NOTE: Check to make sure that the cut diameter is 124 mm for DN 100 or 175 mm for DN 150
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)
1st Moisten the inside of the seal with a lubricant
2nd Push the hose clip onto the pipe and push the inlet pipe in about approx. 20-30 mm
3rd 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 EN 12056-4 (Fig. 11).
Inlet (DN 50)
In addition to the main inlet, an inlet (DN 50) can be connected to one of the two combi-
nation connecting pieces (DN 50/DN 70) on the tank roof.
7.3.3 Ventilation (DN 70)
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 (DN 50/DN 70) to the tank roof
using the enclosed Konfix connector. For this, the bottom of the connecting piece (DN 70)
is sawed off about 15 mm above the lip (see Fig. 8). 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.
1
The connecting piece is opened by sawing off the lug bot-
tom (DN 50) 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.
Another inlet (DN 50) can be installed at the connection
point for the diaphragm hand pump.
20-30mm
English
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