Installation Of The Complete Pump Set - Wilo MISO 25-125 Manual

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.
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
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, Pg. No.3).
Foundation bolt
1 Erection packers
2 Finish grout
3 Concrete
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 insulation material in order to avoid vibration
transmission to the ground.
Installation and operating instructions WILO Mather and Platt –MISO / PISO Pumps
CAUTION! Risk of material damage!
While tightening the screws/bolts, the pump as well
as the motor should be free and not in coupled
condition. The pump or motor should not be used as
a support when tightening the screwed connections.
• 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 shown in figure 4 Pg. No.4. Therefore it is
necessary to use I-beam straight edge along with
engineer's master level.
7.2.2 Leveling 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. However
during shipment, storage it may get disturbed.
• Use I-beam straight edge and an engineer's master level
(with accuracy of 0.05 mm) for leveling the base plate. I-
beam should rest on the machined surfaces of the base
plate, or on the leveling pads if provided. These machined
surfaces 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 leveled 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 conjunctions with engineer's master level.
Level should be achieved within 0.05 mm.
• When the base plate is leveled, grout the foundation 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.(Figure 4, Pg. No. 4)
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