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en - Original instructions
• Only use dynamically balanced motors with a
half-sized key in the shaft extension (IEC
60034-14) and with normal vibration rate (N).
• The mains voltage and frequency must agree
with the specifications on the data plate.
In general, motors can operate under the following
mains voltage tolerances:
Frequency Hz
Phase ~
50
60
Use cable according to rules with 3 leads (2+earth/
ground) for single phase versions and with 4 leads
(3+earth/ground) for three phase version.
4.3 Install the pump
4.3.1 Mechanical installation
Check the following before installation:
• Use a concrete of compressive strength class
C12/15 which meets the requirements of expo-
sure class XC1 to EN 206-1.
• The mounting surface must have set and must
be completely horizontal and even.
• Observe the weights indicated.
Install the pump set
For horizontal installations, see
cal installations, see
Figure 10
Check that the foundation has been prepared in ac-
cordance with the dimensions given in the outline
drawing/general arrangement drawing.
Motor Size
Number of
Poles
Up to 112
2- and 4- pole
From 132
2- and 4- pole
Up to 112
2- and 4- pole
From 132
2- and 4- pole
1. Position the pump set on the foundation.
2. Remove the plugs covering the ports.
3. Align the pump and piping flanges on both sides
of the pump. Check the alignment of the bolts.
4. Fasten the piping with bolts to the pump. Do not
force the piping into place.
5. Use shims for height compensation, if necessa-
ry.
18
UN [V] ± %
1
220 – 240 ± 6
3
230/400 ± 10
400/690 ± 10
1
220 – 230 ± 6
3
220/380 ± 5
380/660 ± 10
Figure 9
. For verti-
Type of Fasten-
ing
Pipe assembly
without support
foot is possible
Assembly on
ground with
support foot
Pipe assembly
possible
Not allowed
6. Tighten the foundation bolts (3) evenly and firm-
ly.
Note:
• If the transmission of vibrations can be disturb-
ing, provide vibration-damping supports between
the pump and the foundation.
4.3.2 Piping checklist
Check that the following are adhered to:
• The suction lift line has been laid with a rising
slope, at positive suction head line with a down-
ward slope towards the pump.
• The nominal diameters of the pipelines are at
least equal to the nominal diameters of the pump
nozzles.
• The pipelines have been anchored in close prox-
imity to the pump and connected without trans-
mitting any stresses or strains.
CAUTION:
Welding beads, scale and other impuri-
ties in the piping damage the pump.
• Free the piping from any impurities.
• If necessary, install a filter.
• Follow the "Permitted Forces and torques on the
flanges".
The data on forces and moments apply to static
pipelines only. The values are only applicable if the
pump is bolted to a rigid and level foundation.
4.3.3 Electrical installation
1. Remove the screws of the terminal box cover.
2. Connect and fasten the power cables according
to the applicable wiring diagram.
For wiring diagrams, see
grams are also available on the back of the ter-
minal box cover.
a) Connect the ground (earth) lead.
Make sure that the ground (earth) lead is longer
than the phase leads.
b) Connect the phase leads.
3. Mount the terminal box cover.
NOTICE:
Tighten the cable glands carefully to ensure pro-
tection against cable slipping and humidity en-
tering the terminal box.
4. If the motor is not equipped with automatic reset
thermal protection, then adjust the overload pro-
tection according to the list below.
• If the motor is used with full load, then set
the value to the nominal current value of
electric pump (data plate)
• If the motor is used with partial load, then set
the value to the operating current (for exam-
ple measured with a current pincer).
• If the pump has a star-delta starting system,
then adjust the thermal relay to 58% of the
nominal current or operating current (only for
three-phase motors).
5 Commissioning, Startup,
Operation, and Shutdown
Figure 11
. The dia-
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