Additional Connection; Connection Of Discharge Pipe; Pipework; Start-Up - Grundfos Sololift+ D-3 Notice D'installation Et D'entretien

3.3 Additional connection

Cut out the entry using a sharp knife. Cut at right
angles to the hole to ensure that the rubber sleeve I
fits tightly. Adjust the sleeve, if necessary, to the inlet
pipe. Insert the sleeve into the tank and make it
engage with the tank. Secure the sleeve by means of
clip C.
Fig. 7

3.4 Connection of discharge pipe

The discharge pipe must be of a material suitable for
grey wastewater and have an external diameter of
23 or 32 mm.
It is advisable to use a minimum ∅25 discharge pipe
according to EN 12050-3.
Fit the discharge elbow D using the clip C.

3.5 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 ∅23 mm pipe for the first 10 metres
and then ∅32 mm.
4 m
3 m
2 m
1 m
Fig. 8
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. Turn on the tap or shower and check that the
pump starts and stops correctly.
If the pump starts, Sololift+ D-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.

5. Maintenance

Sololift+ D-3 is practically maintenance-free.
However, regular use and cleaning will ensure
faultless operation and a long operating life.
To prevent unnecessary pumping, it should be
checked that the possible water taps are tight.
Cleaning the Sololift+ D-3
Sololift+ D-3 is normally kept clean through regular
use.
For systems which are used rarely, occasional
internal cleaning is recommended which is
performed as follows:
1. Switch off the electricity supply.
2. Put detergent into the washbasin or cabinet
shower, turn on the water and fill the Sololift+
D-3.
3. Let the detergent work for approx. five minutes.
1%
4. Switch on the electricity supply and turn on the
water until Sololift+ D-3 has pumped twice.
Cleaning the cabinet shower and washbasin
After cleaning the units connected, turn on the tap or
shower until Sololift+ D-3 pumps.
Periods of non-use
If the Sololift+ D-3 is not going to be used for a long
period, it is recommended to turn on the tap or
shower until Sololift+ D-3 has pumped twice, and
then turn off the water supply to all units connected.
Frost protection
It is advisable to make the lifting station frost-proof if
there is a risk of frost, e.g. in a weekend cottage
during the winter. Empty the tank, see Periods of
non-use or add antifreeze.
Before starting work on the pump,
make sure that the fuse has been
removed, the plug has been pulled out
of the socket or the electricity supply
has been switched off. Make sure that
the electricity supply cannot be
accidentally switched on.
All rotating parts must have stopped
moving.
Any repairs to the motor and electric
components must only be performed
by trained service personnel.
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