Wilo Atmos GIGA-N - Setting Up the Pump by Itself (Variant B, Wilo Variant Key); Installing the Pump Unit on a Base

Installation and electrical connection en
Installation and operating instructions Wilo-Atmos GIGA-N 17
6.4 Setting up the pump by itself
(variantB, Wilo variant key)
When installing a pump by itself, the required coupling guard and baseplate of the
pump manufacturer should be used. In any case, all components must meet the CEreg-
ulations. The coupling guard must be compatible with EN953.
6.4.1 Selecting the motor
Select a motor with sufficient power.
Shaft power <4kW 4kW <P
2
<10kW
10kW <P
2
<40kW
40kW <P
2
Limit value P
2
for the motor
25% 20% 15% 10%
Table4: Motor/shaft power
Example:
▪Duty point water: Q=100m3/h; H=35m
▪Efficiency: 78%
▪Hydraulic power: 12.5kW
▪Plank the base and baseplate.
The required limit value for this duty point lies at 12.5kWx1.15=14.3kW. A motor
with a power of 15kW would be the correct choice.
Wilo recommends using a B3motor (IM1001) with base installation, which is compatible
with IEC34-1.
6.4.2 Selecting the coupling
▪To establish the connection between the pump with bearing bracket and motor, use a
flexible coupling.
▪Select the coupling size according to the recommendations of the coupling manufac-
turer.
▪Follow the instructions of the coupling manufacturer.
▪After installation on the base and connecting the pipes, check the coupling alignment
and correct it if necessary. The procedure is described in the chapter “Coupling align-
ment”.
▪After reaching the operating temperature, the coupling alignment must be checked
again.
▪Avoid accidental contact during operation. The coupling must be protected in accord-
ance with EN953.
6.5 Installing the pump unit on a base
CAUTION
Danger of property and material damage!
A missing foundation or incorrect installation of the unit on the base can lead to a
malfunction of the pump. Incorrect installation is not covered by the warranty.
• Only have the pump unit installed by qualified personnel.
• A professional from the concrete sector must be hired for all base work.
6.5.1 Base
Fig.5: Installing the unit on a base
The base must be able to support the unit installed on the baseplate indefinitely. The
base must be level to ensure there is no tension on the baseplate or unit. Wilo recom-
mends using premium, non-shrink concrete of an adequate thickness for manufactur-
ing. This would prevent vibrations from being transmitted.
The base must be able to accommodate the forces, vibrations and impact that occur.
Guidance values for dimensioning the base:
▪Approx. 1.5to 2x heavier than the unit.
▪The width and length should each be about 200mm greater than the baseplate.
The baseplate must not be strained or pulled down on the surface of the base. It must
be supported so that the original alignment is not changed.