Translation of the Original Operating Instructions
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5. Installation
5.1.
General installation information
During the entire process of installation, the device must not be connected to the electrical
mains.
The pump and the entire connection system have to be protected from frost.
Please also note the illustrations which are located in the text and also as an annex at the end of these operating
instructions. The figures, which are shown in brackets in the statements below, refer to the figure at the end of the
operating instructions.
All connection lines have to be perfectly tight since leaking lines may affect the performance of the pump and
cause considerable damage. If required, please use a suitable sealant to make the installation airtight.
Avoid excessive force when tightening the screwed connections, which can lead to damage. When laying the
connection pipes, you should make sure that the pump is not exposed to any form of weight, vibration or tension.
Moreover, the connection lines must not contain any kinks or an adverse slope.
5.2.
Installation of the pressure line
The pressure line conveys the liquids to be discharged from the pump to the point of withdrawal. To avoid
dynamic flow losses, one should use a pressure line having at least the same diameter as the pressure port (3) of
the pump.
The pressure line to be used for this application should be a suitable flexible hose.
Rigid pipes have proven to be the ideal pressure line for use in a permanent installation.
The pump is equipped with an integrated check valve (non-return valve). It will prevent liquid from flowing back
from the pressure line into the pump after the pump is shut down and protect the unit from being damaged by
pressure peaks.
Screw the connector (10) onto the pump as the top as shown in the illustration below.
The pressure line is to be installed to the pressure port (3) of the pump.
5.3.
Use as a submersible pump
To lower or raise the pump, please use a suitable lowering rope, but never the pressure hose
or the connection cable.
To lower the pump down into or lift it out of the liquid, one has to use a lowering rope suitable for this purpose.
Please use a rope made of stainless steel or synthetic materials such as nylon. Considering the risk of breaking
involved, ropes which tend to the formation of rust, weathering, mouldering etc must not be used. The rope does
not only have to bear the weight of the pump plus that of the water-filled pressure line and the connection cable, it
also has to resist to the strain occurring in operation.
The standard equipment of this model includes a high-grade lowering rope.
The lowering rope, the connection cable (1) and the pressure line have to be tied together at distance intervals of
about 2 m using a suitable adhesive tape or cable ties to keep them from getting entangled while the pump is
raised or lowered.
Carefully lower the pump with the lowering rope down into liquid to be discharged. Make sure that the unit will not
bump or rub against the circumference of the cavity.
The unit must be fully immersed in the liquid.
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