Installation and operating instructions Wilo
–
SCPV pumps
14
Shaft power
P
2
≤ 4
KW
4 kW < P
2
≤
10 kW
10 kW < P
2
≤
40 kW
40 kW
≤
P
2
Recommended power
margin
25 %
20 %
15 %
10 %
Example:
•
Duty point: 100 m3/h
–
35 m
–
pump
efficiency 78 %
Pump shaft power: 12.5 kW
Electrical motor rating (including margin):
12.5 * 1.15 = 14.3 kW
IEC motor power rating available: 15 kW
Use a flange mounted motor B5 (IM 1001) which
comply with the IEC34-1 standard.
7.1.2 Coupling selection
Use a semi-flexible coupling to link the pump to the
driver.
Select the size of the coupling in accordance with
the recommendation of the coupling manufacture.
Strictly follow the coupling manufacturer
’s
instructions for the fitting of the coupling between
the pump and the motor. The alignment of the
pumps and the motor must be checked after the
installation of the pump set on its foundation and
when the piping is connected. In addition an
alignment control must take place when the
system works at its nominal temperature.
7.1.3 Pumpset assembling
Fix the pump and motor equipped with their half
coupling on the motor stool and make the
alignment of those elements. It is recommended to
fit the coupling guard supplied as accessories by
Wilo.
7.2 Installation of the complete pump set
Before any installation work is carried out, the
machine should be inspected for damage that may
have occurred during handling, transport &
storage.
Installation within a building: install the pump in a
dry, well ventilated and frost-resistant room.
Pumping machinery should have adequate access
and working room for maintenance operations.
Adequate overhead space for lifting devices and
working clearance must be provided.
Installation outside a building (outdoor
installation):
Install the pump with a suitable protection to
avoid rainfalls strong wind and particles which can
damage the pump or motor.
Avoid exposure of the pump to direct sunlight.
An appropriate solution to avoid frost must be
implemented.
CAUTIO N! Risk of material damage!
Ensure sufficient ventilation/heating if the
ambient temperature exceeds/falls below the
permitted limit values.
Carry out all welding and soldering work prior to the
installation of the pump.
CAUTIO N! Risk of material damage!
Dirt from the pipe system can destroy the pump during
operation. Flush the pipe system prior to the installation
of the pump.
Provide shut-off valves in front of and behind the
pump.
7.2.1 Foundations (Figure2)
The foundation should be sufficiently substantial to
absorb any vibration and to form a permanent, rigid
support for the base plate. The foundation must get
large dimensions.
Generally, the weight of the foundation is around 2 to 3
time the pump set weight. This is important in
maintaining the alignment of a direct connected unit. In
building the foundation, the top of the foundation
should be left approximately one inch low to allow for
grouting. Foundation bolts of the proper size should be
embedded in the concrete, located by template (refer
figure 3).
Foundation bolt
1 Erection packers
2 Finish grout
3 Concrete
A pipe sleeve about 2 ½ diameters large than the
bolt should be used to allow movement for the final
positioning of the bolts. For installations where a low
level of noise is expected, built the foundation in a pit
lined with appropriate insulation material in order to
avoid vibration transmission to the ground.
CA UTION! Risk of material damage!
Do not hold the pump by the motor/module when tightening
the screwed connections. Apply the wrench surfaces to the
suction/pressure port inserted.
NOTE
:
Leave top of foundation rough! Do not finish
with trowel.
The top surface over which the sole plate rests must be
left rough to assist in keying of the final grout and
sufficient allowance must be made for the thickness of
the steel pickings and leveling shims beneath the sole
plate, the requirement being approximately 25 mm.
