Installation And Electrical Connection (Motor / Pump Coupling System); Installation Of Bare Shaft Pump - Wilo -SCP Installation And Operating Instructions Manual

7 Installation and electrical connection (Motor / pump
coupling system)
DANGER! Risk of getting crushed!
The installation or removal of the product must not be
performed by one person alone. Measures should be taken
to bar persons from standing beneath a suspended load.
Furthermore, it is also prohibited to move suspended loads
over exposed workplaces where people are present. The
fastening devices should be adapted to the conditions at
hand (weather, hooking system, load, etc.) Use suitable
fastening devices to handle the weight of the product.
WARNING! Danger of personal injury!
The installation and electrical connection should be
performed only by qualified personnel in compliance with
local regulations. This section provides instructions on the
recommended methods of installing pumping sets on to
concrete foundations. Careful attention must be paid to the
customer and contractor's installation drawings during the
installation procedures to ensure that the pumping set is
accurately positioned on the correct datum levels.
*
Electrical motor selection
Shaft power
Recommended power
margin
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 foot mounted motor B3 (IM 1001) which comply with
the IEC34-1 standard.
7.1.2 C o u p l i n g 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 manufacturer. Strictly follow
the coupling manufacturer's instructions for the fitting of the
coupling between the pump and the motor. (The coupling must
comply with the standard EN349). 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. The coupling guard must
comply with the EN 953 standard in order to avoid any contact
with rotating parts during operations.
Installation and operating instructions WILO-Split Case Pumps
P ≤ 4 KW 4 kW < P
2 2
25 % 20 %
The existing accident prevention regulations must be
observed.
WARNING! Danger of electric shock!
Any hazards from electrical current should be ruled out.
Any instructions from local or general directives [e.g. IEC,
VDE etc.] or directives of the local electricity supply
companies must be observed.

7.1 Installation of bare shaft pump

It is strongly recommended to use component such as
coupling, guards, motors, base plates sup plied by WILO
to install a bare shaft pump on a base plate.
It is mandatory that those components should be CE
certified and the coupling guard must comply with the
regulation EN 953.
7.1.1 Electrical motor selection
Select an electrical motor with sufficient power margin
regarding the motor rating. The table below will guide you
in this selection*.
≤ 10 kW 10 kW < P ≤ 40 kW
2
15 %
7.1.3 Selection of a base plate
Select a base plate in accordance with the local
regulations, sufficiently large and strong to support the
pump and motor.
7.1.4 Pumpset assembling
Fix the pump and motor equipped with their half coupling
on the base plate and make the alignment of those
elements. It is recommended to fit the coupling guard
supplied as accessories by WILO.
NOTE:
If pump is supplied with coupling and motor mounted on
the base plate, please ensure proper alignment of pump
motor and coupling.
40 kW ≤ P
2
10 %
15