Sololift2 CWC-3
Installation and operating instructions
GRUNDFOS INSTRUCTIONS
Other languages
Sololift2 CWC-3
http://net.grundfos.com/qr/i/97771616
English (GB)
2
English (GB) Installation and operating instructions
Original installation and operating instructions
CONTENTS
Page
1. Symbols used in this document
2. General description
The CWC-3 is a small, compact automatic lifting
station suitable for pumping domestic wastewater
and sewage off places in private dwellings where
wastewater cannot be led directly to the sewer by
means of a natural downward slope.
3. Applications
The product is only suitable for pumping wastewater
from a cabinet shower, bidet and/or washbasin as
well as sewage from a wall-hung toilet. The compact
lifting station is designed for prewall installations.
1. Symbols used in this document
2
2. General description
2
3. Applications
2
4. Pumped liquids
3
5. Installation
3
6. Electrical connection
3
7. Service
4
7.1 Service documentation
4
7.2 Maintenance
4
7.3 Adjustment of run time
4
7.4 Service instructions
4
8. Technical data
5
9. Fault finding
6
10. Disposal
7
Warning
Prior to installation, read these installation
and operating instructions. Installation and
operation must comply with local
regulations, EN 12056-4 and accepted
codes of good practice.
Warning
The use of this product requires
experience with and knowledge of the
product.
Persons with reduced physical, sensory or
mental capabilities must not use this
product, unless they are under supervision
or have been instructed in the use of the
product by a person responsible for their
safety.
Children must not use or play with this
product.
Warning
If these safety instructions are not
observed, it may result in personal injury.
Caution
If these safety instructions are not
observed, it may result in malfunction or
damage to the equipment.
Note
Notes or instructions that make the job
easier and ensure safe operation.
Caution
If away for a long period (e.g. holidays) we
recommend that you turn off the water
supply to the toilet served by the lifting
station.
Note
This is a domestic unit.
Toilets connected to this unit can be used
like any normal toilet, and require
minimum maintenance. The unit will
operate automatically as soon as the
required level of water enters the tank.
Caution
Only the disposal of toilet paper, faecal
matter and wastewater will be covered by
warranty. Any damage due to foreign
bodies such as cotton, condoms, sanitary
towels, wet wipes, food, hair, metal, wood
or plastic objects, will not be covered by
the warranty. Solvents, acids and other
chemicals can also cause damage to the
unit, and will invalidate the warranty.
Note
Applications according to EN 12050-3.
Not for public use, only limited number of
users.
Installation with direct connection to toilet
and in the same room as sanitary
appliances.
A second toilet must be available above
the backflow level.
The product must be fastened to the floor
to prevent uplift and turning.
English (GB)
3
4. Pumped liquids
Domestic wastewater and sewage containing toilet
paper and faeces.
Ordinary liquids for cleaning of the appliances
connected. pH value: 4-10.
5. Installation
An alarm device for acoustic alarm in case of
malfunction or high level in the tank is available as
an accessory (noise level 75 dB(A)). Product
number: 97772315.
Fig. 1 Alarm device
6. Electrical connection
Make sure that the product is suitable for the supply
voltage and frequency available at the installation
site.
The electrical connection must be carried out in
accordance with local regulations.
The thermal switch cuts out the motor in case of
overtemperature and cuts it in again automatically
after cooling.
Caution
The product must not pump harsh
chemicals or solvents. See the quick
guide.
The product is designed for flush volumes
of 4, 6 and 9 litres. A 4-litre flush is
permissible only if the amount of solids in
the pumped liquid is small.
Caution
Do not pull or lift the product by the power
supply cable.
Note
The product must be accessible for
maintenance and repair.
If the product is installed behind the wall, a
service hatch of sufficient size is
necessary.
The product must be placed in a frost-free
room to prevent the pumped liquid from
freezing.
Make sure that all external pipework is
adequately insulated.
The discharge pipe must be made of rigid
material, such as copper, or of rigid PVC
with solvent-welded joints.
To prevent the transmission of vibrations
to buildings, make sure that the pipework
is thoroughly fixed and that fittings cannot
move and are not in contact with building
parts.
TM04 9469 4310
Warning
The product must be earthed. The
protective earth of the socket outlet must
be connected to the protective earth of the
pump. The plug must therefore have the
same PE connection system as that of the
socket outlet. If not, use a suitable
adapter.
The installation must include an earth
leakage circuit breaker for protection
against earth fault currents. This will
ensure protection when using a Schuko
plug or another plug with earth pin.
Warning
The product must be connected to a mains
switch with a minimum contact gap of 3
mm in all poles.
English (GB)
4
7. Service
For service kits, see www.productselection.grundfos.com.
7.1 Service documentation
Service documentation is available at www.productselection.grundfos.com.
If you have any questions, please contact the
nearest Grundfos company or service workshop.
7.2 Maintenance
The lifting station does not require any special
maintenance, but we recommend that you check
operation and pipe connections at least once a year.
Change the carbon filter once a year. See section
7.4 Service instructions.
7.3 Adjustment of run time
The default setting ensures proper operation in most
pipework. If the pipework is particularly long or short,
it may be necessary to adjust the run time.
For a guide to adjusting the run time, see
www.product-selection.grundfos.com.
7.4 Service instructions
Thanks to the product design, service is easy in case
of malfunction or blocked pump.
Digits in the following sections refer to the pictures in
the appendix at the end of this booklet.
Impeller/grinder stuck
1.1 Disconnect the power supply.
1.2 Unscrew the plug in the cover.
1.3 Insert a screwdriver (min. 110 mm) through the
plug hole and into the slot of the shaft end.
Turn the shaft right and left to free the impeller/
grinder from dirt.
1.4 Fit the plug, and switch on the power supply to
check if the impeller/grinder can rotate freely.
Operation by means of a power drill
2.1 If the product cannot be operated by electrical
power, disconnect the power supply and empty
the toilet and tank by means of a power drill.
Warning
The product must only be serviced by
trained service staff.
If the power supply cable is damaged, it
must be replaced by the manufacturer, the
manufacturer's service partner or a
similarly qualified person.
To ensure safe and reliable operation,
always use original spare parts from
Grundfos.
Note
The product must be thoroughly cleaned
before it is returned for service. Otherwise
the warranty will be void.
Warning
Before carrying out any service work,
remove the fuse, pull out the plug, or
switch off the power supply. Make sure
that the power supply cannot be
accidentally switched on.
All rotating parts must have stopped
moving.
The product must only be serviced by
trained service staff.
English (GB)
5
Pressure switch pipe blocked
3.1 If the water level in the tank is above the motor
flange, disconnect the power supply and drain
the tank by means of the drain hose.
3.2 Unscrew the cover.
3.3 Pull out the complete pressure switch.
3.4 Check and clean the pressure switch pipe.
Foreign body in tank
If the water level in the tank is above the motor
flange, disconnect the power supply and drain the
tank by means of the drain hose. See 3.1.
Unscrew the cover. See 3.2.
4.1 Remove the four screws of the motor flange.
4.2 Lift the motor flange to reduce the compression
of the O-ring. Insert a screwdriver into the notch
underneath the power supply cable and press it
down.
4.3 Lift out the complete motor-pump unit by the
handles.
4.4 Check and clean the tank and impeller/grinder.
Carbon filter
5. Replace the carbon filter once a year to ensure
sufficient filter function.
8. Technical data
Supply voltage
1 x 220-240 V - 10 %/+ 6 %, 50 Hz.
Power consumption
Max. 620 W.
Power factor
Cos φ 0.87 / 0.92.
Speed
2800 min
-1
.
Rated current
3.0 A.
Insulation class
F.
Noise level
< 70 dB(A) to 12050-2.
Flow rate
Max. 137 l/min.
System pressure
Max. pump head: 8.0 m.
Max. system head: 6.0 m.
Supply cable
1.5 m, 0.75 mm2 (H05VV-F-3G).
Net weight
7.1 kg.
Start and stop levels
Start: 72 mm above bottom.
Stop: 52 mm above bottom.
Liquid temperature
Max. 50 °C.
Ambient temperature
+5 °C to +35 °C.
Duty
S3 - 50 % - 1 min. (30 sec. on; 30 sec. off).
Marking
Approvals
Note
The pressure switch unit can be removed
separately.
Caution
Make sure that the little tube in the top of
the pipe did not become blocked when you
cleaned the pipe!
Note
Lubricate the sealing area of the pressure
switch for easier fitting.
Note
Lift the unit vertically before tilting it!
Warning
Beware of the sharp edges on the grinder.
Wear protective gloves.
Note
Instead of using a carbon filter, Sololift can
also be vented through a vent pipe. In this
case a vent valve is needed. Product
number: 98059587.
Note
The system pressure must not exceed 6 m
head to guarantee a sufficient drain of the
connected sanitary appliances.
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