Installation And Electrical Connection; Personnel Qualifications; Operator Responsibilities; Preparing The Installation - Wilo Atmos TERA-SCH Serie Einbau- Und Betriebsanleitung

6 Installation and electrical con-
nection
6.1

Personnel qualifications

6.2

Operator responsibilities

6.3

Preparing the installation

6.4 Setting up the pump by itself
(variant B, Wilo variant key)
6.4.1 Selecting the motor
Installation and operating instructions Wilo-Atmos TERA-SCH

Installation and electrical connection

Storage for more than three months
Additional precautionary measures:
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All rotating parts must be coated with a suitable protective medium to protect them
from rust.
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If the pump is to be stored for more than a year, consult the manufacturer.
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Electrical work: A qualified electrician must carry out the electrical work.
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Observe locally applicable accident prevention and safety regulations of professional
and trade associations.
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Observe all regulations for working with heavy loads and under suspended loads.
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Provide protective equipment and ensure that the protective equipment is worn by
personnel.
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Avoid pressure surges!
Pressure surges can occur in long pressure pipes. These pressure surges can lead to
the destruction of the pump!
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Structural components and foundations must be of sufficient stability in order to al-
low the device to be fixed in a secure and functional manner. The operator is re-
sponsible for the provision and suitability of the building/foundation!
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Check that the available consulting documents (installation plans, design of the op-
erating space, inflow conditions) are complete and correct.
WARNING
Risk of personal injury and property damage due to improper handling!
• Never set up the pump unit on unfortified surfaces or surfaces that cannot bear
loads.
• The pump should only be installed after completion of all welding and soldering
work.
• Flush the pipe system if required. Dirt can cause the pump to fail.
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The pumps (in the standard version) must be protected from the weather and in-
stalled in a frost/dust-free, well-ventilated environment that is not potentially ex-
plosive.
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Mount the pump in a readily accessible place. This makes it easier to complete in-
spections, maintenance (e.g. mechanical seal change) or replacement in the future.
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A travelling crane or a device for attaching hoisting gear should be installed above
the set-up site of large pumps.
When installing a pump by itself, the required coupling guard and base frame 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.
Select a motor with sufficient power.
Shaft power < 4 kW
Required addi- 25 %
tional power to
determine mo-
tor rating value
P
2
Table 7: Motor/shaft power
Example:
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Duty point water: Q = 100 m
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Efficiency: 78 %
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Hydraulic power: 12.5 kW
4 kW < P 10 kW < P
2
< 10 kW < 40 kW
20 % 15 %
3
/h; H = 35 m
en
40 kW < P
2 2
10 %
19