Wilo Actun OPTI-QS Serie Instrucciones De Instalación Y Funcionamiento página 66

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• Check that the available consulting documents (installation plans, operating space
configuration, feed conditions) are complete and correct.
• Observe all regulations, rules and laws for working with heavy and under suspended
loads. Wear appropriate protective clothing!
• Observe the locally applicable accident prevention and safety regulations of professio-
nal and trade associations.
NOTICE:
• To achieve the necessary cooling, the pump
must always be immersed when in operation.
Ensure minimum water submersion at all times!
• Do not use an additional non-return valve on
the pressure side. This would result in system
malfunction.
6.4.1. Vertical pump installation
In this installation method, the submersible pump is installed directly on the ascending
pipe. The installation depth is determined by the length of the ascending pipe. In narrow
well shafts, a centring device must be used because the pump must not come into con-
tact with the walls of the well as this could damage the cable and pump. Use hoisting
gear with sufficient bearing capacity.
The motor must not sit on the bottom of the well as this can lead to tensions and slag-
ging of the motor. This would mean that heat dissipation is no longer guaranteed and
the motor could overheat.
In addition, the pump should not be installed at the same height as the filter pipe.
The intake current can draw up sand and solid material, which would mean that the
motor cooling is no longer guaranteed. This would also result in increased wear of the
hydraulics. To prevent this, it may be necessary to use a cooling shroud or install the
pump in the vicinity of unperforated well casings.
Installation with threaded pipes
Fig. 6.: Installation
1 Unit
2 Ascending pipe
3 Supporting clamp
4 Lifting equipment
5 Connection cable
6 Minimum submersion
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7 Square timber (2x)
8 Cable clip
9 Mounting bracket
Static water level
Ls
(pump not in operation)
Dynamic water level
Ld
(pump in operation)
INSTALLATION
WILO SE 02-2019 DIN A5