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2. Safety Warnings
2.1. General Instructions
Signs used to mark instructions in this manual
Safety instructions in these operating instructions,
which, if not observed, could cause a danger for persons
are marked with the general symbol in accordance with DIN
4844-W 9.
Warnings against electrical voltage are marked with the
safety symbol in accordance with DIN 4844-W 8.
2.2. General Safety Precautions
General regulations and guidelines not mentoined in the
safety warnings retain their validity.
These operating instructions contain basic instructions,
which have to be adhered to during installation, operation
and maintenance. These operating instructions must be
read from mechanic and the operator before installation
and operation of the pump and have to be kept available at
the operating place of the machine/unit at all times. Per-
sons who are not familiar with the operating instructions
shall not use this product.
Children and adolescents under age 16 shall not use
the pump and must keep away from the machine/unit
while it is operational.
The working area has to be closed off expediently
and must adhere to local workplace regulations.
Always use personal safety equipment such as safety
boots, rubber gloves, safety glasses and helmet.
Make sure that the emergency exit from the workplace
is not barricaded.
To prevent suffocation and poisoning caused by veno-
mous gases, make sure that enough oxygen exists at the
workplace.
If you have to work with welding tools or electric tools,
make sure that there is no explosion hazard.
Immediately after repair or maintenance work, all safety
and protection equipment must be reinstalled and placed in
function again.
The operator of the pump is responsible for third parties
within the work area.
Never put a hand or finger into suction inlet or dischar-
ge of the pump while the impeller is rotating.
Persons are not permitted to stay in the pumping medi-
um during operation of the pump.
All other rules and regulations and local codes covering
health and safety must be observed. In accordance with
product liability law, we point out that we shall not be liable
for damages caused by the pump due to non-observance of
the instructions and guidelines set forth in the operating in-
structions. The same product liability are valid for accesso-
ries.
3. Applications and Technical Description
3.1. Applications
If the pump is used for cleaning or maintenance of
swimming pools, make sure that no persons stay in the
swimming pool during operation of the pump and that the
pump is self-assured by a 30 mA earth leakage circuit bre-
aker.
A series pumps are designed for pumping waste water or
effluent containing sludge or soft solids.
The pumps are used for installations in public and private
sector, trade and industry.
The pumps must not be used for pumping of liquids contai-
ning great quantities of abrasive solids, like sand or stones.
Before the pumping of chemically aggressive liquids, the
resistance of the pump materials must be checked.
The pumps may be used for both temporary or permanent
installation. The installation for submerged installation can
be free-standing on a base-stand or by means of an auto-
coupling guide rail system (see under 7.).
For dry well installation of the pump in a separate sump all
models are available with a motor jacket cooling.
Special considerations must be taken when operating
pumps with variable frequency drives (invertres). The in-
verter circuit design, horsepower required by pump, motor
cooling syste, power cable length, operating voltage and
anticipated turndown ratio must be fully evaluated during
the design stage of the installation. As a minimum, properly
sized load reactors and filters must be installed between
the inverter and the pump to protect the pump motor from
damaging voltage spikes. Warranty coverage will not be
provided on any pump motor that is operated with a varia-
ble frequency drive, unless the load side of the inverter is
properly isolated from the pump.
3.2. Technical Data
Discharge
V 13...
V 23..., M 23..., M 24..., MX 24..., V 24...
Voltage
3Ph-Motor (model D)
Speed
2-pole
4-pole
6-pole
Insulation class
Motor protection
Cable
Cable type
Noise level during operation, 1,60 m from the
ground
3.3. Operating Conditions
Maximum liquid temperature: 35°C, short term up to
60°C.
Density of pumped liquid: max. 1100 kg/m
Ph-value of pumped liquid: 5 up to 11.
Level of pumped liquid: The lowest level must always be
above the top of the pump housing (volute).
Operation: The motors are designed for continuous opera-
tion (S1) with fully submerged motor, maximum 15 starts
per hour. Our standard warranty and maintenance regula-
tions refer to intermittent operation. For reduced warranty
periods and service intervals due to continuous operating
conditions please contact our service
department.
3.4. Explosive enviroments
For operation of the pumps in explosive enviroments
only models with explosion-proof motors (Ex model) must
be used.
For each individual installation the explosion classifica-
tion (Ex-class) of the pump must be approved by the local
authorities.
DN 80
DN 100
400 V
2900 rpm
1450 rpm
960 rpm
F
IP 68
10 m
H 07RN-F...
≤ 70d(B)A
3
10
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