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4. Warranty
Our warranty only covers pumps which are installed and
operated in accordance with these installation and opera-
tion instructions and accepted codes of good practice and
being used for the applications mentioned in these instruc-
tions.
5. Transport and Storage
Never use the cable or the discharge hose/pipe to lift,
lower, transport or attach the pump. Always use the han-
dle or a rope or a chain attached to the handle.
The pump may be transported and stored in vertical
or horizontal position. Make sure that it cannot roll or fall
over. For longer periods of storage, the pump should be
protected against moisture, frost or heat.
6. Electrical Connection
Before operation, an expert check must secure that
the required electrical protection measures exist. The
connection to ground, earthing, isolating transformer, fault
current breaker or fault voltags circuit must correspond to
the guidelines set forth by the responsible power plant.
The voltage required in the technical data sheet
must correspond to the existing line voltage.
Submersible pumps used outside of buildings must
have a cable with a minimum length of 10m.
Make sure that the electrical pin-and-socket connec-
tions are installed flood- and moisture-safe. Before start-
ing operation check the cable and the plug against dam-
ages.
The end of the pump power supply cable must not be
submerged in order to prevent water from penetrating
through the cable into the motor.
7. Installation
Pay attention to the maximum depth of immersion
(see pump label).
If the pump is installed in a sump, the sump opening
must be covered with a tread-safe cover after installation.
The operator has to prevent damage through the
flooding of rooms caused by defects of the pump through
the use of appropriate measures (e.g. installation of alarm
units, backup pump or like that).
The pump may be installed with a flexible duscharge hose
or a rigid pipe, non-return valve and isolating valve. If a
flexible hose is used, make sure that the hose has the
same diameter like the pump discharge and does not
buckle.
Please make sure that couplings or rigid pipe at the top of
the discharge connector does not block the integrated
non-return valve. The pump will not obtain the full capacity
if the non-return valve is blocked.
Fix a rope or a chain to the pump handle and lower the
pump into the liquid. If the pump is installed on muddy
ground, support it on bricks to prevent it from sinking in.
The integrated float switch at the pump starts and stops
the pump automatically according to the liquid level in the
pit. If the liquid level reachs a height of 130 up to 150 mm
in the pit, the pump starts. If the liquid level lowered to a
height of 70 – 100 mm the pumps stops.
8. Start-Up
Never let the pump run dry for a long time of period,
as it will destroy the pump (danger of overheating).
Place the pump in the pit and vent the pump. Open the
isolating valves. Choose the mode of operating at the float
box.
In position AUTOMATIC, the pump operates according to
the liquid level automatically. The pump starts running if
the float switch reachs the start level and stops running if
the float switch reachs the stop level.
In position MANUAL, the pump start running irrespective
of the liquid level. The pump is not suitable for continous
operation.
Please choose the position MANUAL during increase wa-
ter inflow only. After the liquid reachs the normal liquid
level change the position of the switch to AUTOMATIC
operation, tp prevent a dry running of the pump.
9. Maintenance and Repair
In case of a defect of the pump, a repair shall be car-
ried out only by the manufacturer or through an authorized
workshop. Modifications of the pump must be confirmed
by the manufacturer. Only HOMA spare parts shall be
used.
In accordance with the product liability law we point
out that we shall not be liable for damages caused by our
product due to unauthorized repair by persons other than
the manufacturer or an authorized workshop or due to the
use of spare parts other than original HOMA parts. The
same product liability limitations are valid for accessories.
Before maintenance or repair disconnect the pump
from the power supply to avoid accidental starting of the
pump!
Before maintenance or repair make sure that all rotat-
ing parts stand still!
Before carrying out maintenance and service, the
pump must be thoroughly flushed with clean water. Rinse
the pump parts in clean water after dismanteling.
At pump types with oil chamber an overpressure can
escape with loosening of the oil chamber control screw.
Screw only when pressure balance took place.
Pumps running under normal operation conditions should
be inspected at least once a year. If the pumped liquid is
very muddy or sandy or if the pump is operating continu-
ously, the pump should be inspected every 1.000 operat-
ing hours.
