Installation Of The Complete Pump Set - Wilo SCP Série Notice De Montage Et De Mise En Service

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 & sto-
rage.
• 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 installa-
tion):
• 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.
CAUTION! 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.
CAUTION! 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 (figures 2, 3)
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 connec-
ted 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
Installation and operating instructions Wilo-SCP
NOTE:
Leave top of foundation rough! Do not finish with
trowel.
• 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 insula-
tion material in order to avoid vibration transmis-
sion to the ground.
CAUTION! 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/pres-
sure port inserted.
• It is insufficient to check level on the machined
pads of base plate with a spirit level because it is
possible that some types of errors will not be
revealed or will be accepted as being within
acceptable limits. These distortions as showed in
figure 4. Therefore it is necessary to use I-beam
straight edge along with engineers master level.
7.2.2 Levelling and installing the base plate
CAUTION! Risk of material damage!
Pumps and drivers that are received with both
machines mounted on a common base plate are
checked for alignment before shipment. Howe-
ver during shipment, storage it may get distur-
bed.
• Use I-beam straight edge and an engineer's mas-
ter level (with accuracy of 0.02 mm / meter) for
levelling the base plate. I-beam should rest on the
machined surfaces of the base plate, or on the
levelling pads if provided. These machined surfa-
ces where level is being checked must be clean
and free from paint, burrs etc.
• Check datum position of base frame as given in
G.A. Adjust the level of the base plate by inserting
shims between the bed plate and the packer plate
until the bed plate is levelled and supported on all
the packing plates at the height required for the
connection of suction and discharge branches. For
checking the levels across two pads, I-beam type
straight edge should be used extensively in con-
junctions with engineer's master level. Level
should be achieved within 0.05 mm per 250 mm.
• When the base plate is levelled, grout the founda-
tion bolts only. Care should be taken so as not to
disturb the verticality of foundation bolts. For
grouting use rich mix of 1: 1:2 of cement, sand and
gravel below 12 mm. Alternatively quick setting
grout mix can be used.
• When the grout has set, gently but firmly tighten
the foundation bolts. Care must be taken not to
distort the base plate or loosen the foundation
bolts in the grout by excessive tightening.
• When the grout has set, gently but firmly tighten
the foundation bolts. Care must be taken not to
distort the base plate or loosen the foundation
bolts in the grout by excessive tightening.
English
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