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6. Installation
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).
Fasten the tank to an even floor with expansion bolts.
Before installing the disposal units make sure that the all
national instrucions and the general measures for health
protection and industrial protection for the installation of
disposal units (DIN 1986) are observed. Furthermore please
pay attention to the hints below:
Install the unit in that way, that the operation and
service elements are easily accessable. Make sure that
there is enough space (approx. 50 cm) between the
horizontal inlet and any wall.
Mount a gate valve into the inlet pipe and the discharge
pipe to guarantee an easy service or demounting of the
unit .
To avoid sediment build-up in the discharge pipe, the
pipe, and the liftimg station, should be dimensioned for
a water velocity of minimum 0,7 m/s, for vertical pipes,
however, not lower than 1,0 m/s.
The incoming sewer could be ensues at the horizontal
inlet through a WC-direct connection with 180 mm, 210
mm, or 250 mm, or a DN 100 or DN 50 effluent pipe.
Vertical inlets (DN 100 / DN 40 and DN 150 / DN 40) for
service pipe lines are existing. Cut off the blanked off
the vertical or horizontal inlet and connect a incoming
sewer inlet which correspond to the diameter of the
inlet.
The diameter of the discharge pipe must be DN 80 and
should not installed in close arcs. The discharge pipe
must conduct over the sewer level, that means
constantly rising over that niveau and subsequently as a
loop directly to the collecting conduit.
To prevent a freezing of the discharge pipe please
isolate the complete discharge pipe up to the sewer
level.
Directly above the swing check valve mount a gate
valve into the discharge pipe.
For a trouble free operation of the pneumatic level
control it is absolutly necessary that the pressure hose
between tank and control box is installed without loops,
bending and constantly rising.
Cut off the blanked off end of the air vent and connect a
DN 70 vent pipe to the tank by means of the flexible
connection supplied. The vent pipe should be led out
into the open air in accordance with local regulations.
Mount the supplied pump controller flood protected on
the wall in accordance with local regulations.
A manual diaphragm pump is available as an
accessory. The pump is connected to the 1" tank port.
The manual diaphragm pump is used for draining the
tank in the event of pump failure. Above the diaphragm
pump must be fitted with a non-return valve on the
discharge side. To facilitate service of the diaphragm
pump, it is advisable to fit a 1" isolating valve to the tank
port. The pipe must conduct over the sewer level, that
means constantly rising over that niveau and
subsequently as a loop directly to the collecting conduit.
7. Start-Up
Never let the pump run dry for a long time of period, as it
will destroy the pump (danger of overheating).
Before starting the disposal unit make sure that all isolating
valves are open and check that the unit runs satisfactorily.
Make sure that the correct phase sequence was proofed at
the 3-ph models (see 5.3.).
Turn the operation switch into the position "Auto".
In combination with the pneumatic level control the pump
starts and stops according to the liquid level in the tank.
8. Maintenance and Repair
In case of a defect of the pump, a repair shall be carried
out only by the manufacturer or through an authorized
workshop. Modifications of the pump must be confirmed by
the manufacturer. Only original 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 ones. 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 rotating
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 continuously, the
pump should be inspected every 1.000 operating hours.
For long and trouble-free operation of the pump, following
points should be checked regularly:
- Nominal current (A): Check with amp-meter.
- Pump parts and impeller: Check for possible wear.
Replace defective parts.
- Ball bearings: Check the shaft for noisy or heavy operation
(turn the shaft by hand). Replace defective ball bearings. A
general overhaul of the pump is usally required in case of
defective ball bearings or poor motor function. This work
must be carried out by an authorized
service workshop.
- Cable entry: Make sure that the cable entry is watertight
and that the cables are not bent sharply and/or pinched.
Additionally at pump types with oil chamber:
- Oil level and oil condition in oil chamber:
Put the pump in horizontal position, so that the screw of the
oil chamber is above (at larger pumps: one of both screws).
Remove the screw and infer a small quantity of oil. The oil
becomes greyish white like milk if it contains water. This may
be the result of defective shaft seal.
In this case contact our Sales and Service Department.
The oil should be replaced after 3000 operating hours.
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