Installation and electrical connection
en
Installation and operating instructions Wilo-Atmos TERA-SCH
19
Storage for more than three months
Additional precautionary measures:
ƒ
All rotating parts must be coated with a suitable protective medium to protect them
from rust.
ƒ
If the pump is to be stored for more than a year, consult the manufacturer.
6
Installation and electrical con-
nection
6.1
Personnel qualifications
ƒ
Electrical work: A qualified electrician must carry out the electrical work.
6.2
Operator responsibilities
ƒ
Observe locally applicable accident prevention and safety regulations of professional
and trade associations.
ƒ
Observe all regulations for working with heavy loads and under suspended loads.
ƒ
Provide protective equipment and ensure that the protective equipment is worn by
personnel.
ƒ
Avoid pressure surges!
Pressure surges can occur in long pressure pipes. These pressure surges can lead to
the destruction of the pump!
ƒ
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!
ƒ
Check that the available consulting documents (installation plans, design of the op-
erating space, inflow conditions) are complete and correct.
6.3
Preparing the installation
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.
ƒ
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.
ƒ
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.
ƒ
A travelling crane or a device for attaching hoisting gear should be installed above
the set-up site of large pumps.
6.4
Setting up the pump by itself
(variant B, Wilo variant key)
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.
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
Required addi-
tional power to
determine mo-
tor rating value
P
2
25 %
20 %
15 %
10 %
Table 7:
Motor/shaft power
Example:
ƒ
Duty point water: Q = 100 m
3
/h; H = 35 m
ƒ
Efficiency: 78 %
ƒ
Hydraulic power: 12.5 kW
