Connection In Top Cover; Side Connection; Connection Of Discharge Pipe; Pipework - Grundfos Sololift+ PWC-3 Montage- Und Betriebsanleitung

3.3 Connection in top cover

Cut off the stub end in the cover using a sharp knife
or a saw with fine teeth. The edges must be cut at
right angles to the hole to ensure a good fastening of
sleeve A. Remove rough edges.
Fig. 7
Secure sleeve A by means of the metal clip D.

3.4 Side connection

Use sleeve A and metal clip D. If a side connection is
not used, it must be blanked off by means of the plug
E. Lubricate the O-ring, if necessary, before fitting it.
3.4.1 Connection of cabinet shower
Note: The top of the water trap of the cabinet shower
must be at least 150 mm above the bottom of the
Sololift+ PWC-3 tank.
Fit the inlet pipe from the cabinet shower to one of
the side connections.
It is advisable to install a strainer in the outlet grating
of the cabinet shower for collection of hair.

3.5 Connection of discharge pipe

The discharge pipe must be of a material suitable for
raw sewage and have an external diameter of 23, 28
or 32 mm.
It is advisable to use a minimum ∅25 discharge pipe
according to EN12050-3.
Fit the discharge elbow C using clip D.
The non-return valve must be fitted as shown below.
Fig. 8
Adapt the discharge elbow C, if necessary, by cutting
it.
It is advisable to fit a drain plug at the bottom of the
vertical pipe section for use in case of repair of the
discharge pipe.
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3.6 Pipework

The following drawing shows the maximum length of
vertical and horizontal discharge pipes.
It is recommended that the first part of the discharge
pipe is vertical.
All horizontal pipes must have a fall:
Discharge pipe: Minimum 1 %.
Inlet pipes: Minimum 3 %.
If the discharge pipe is more than 10 metres long, a
pipe one size bigger must be used after 10 metres,
for instance a ∅28 pipe for the first 10 metres and
then ∅32.
6 m
5 m
4 m
3 m
2 m
1 m
Fig. 9
The discharge pipe must be taken above the
backflow level (i.e. main sewer level). The pipework
from this point must be made with pipe sizes of at
least ∅40.

4. Start-up

1. Check that the installation is correct.
2. Switch on the electricity supply.
3. Flush the toilet and check that the pump starts
and stops correctly.
If the pump starts, Sololift+ PWC-3 is ready for
use.
If the pump does not start, see section 6. Fault
finding chart.
4. Check that all pipes and connections are tight.
Note: The toilet must not be used until Sololift+
PWC-3 has been connected correctly.
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