Saci OPTIMA Manuel D'installation Et D'entretien page 10

6. STORAGE
All the pumps should be stored in a sheltered, dry, dust-free place, with regulated air-moisture levels when possible.
The pumps are supplied in their original packaging, where they must remain until assembly.If not, keep the suction
and discharge ports closed.
7. INSTALLATION
General
The pump should be installed as close as possible to the level of water, in order to obtain minimum run lenght
in suction and a reduction of load losses.
The pump should be installed on a solid, very smooth surface. It is necessary to perfectly fit the pump through the two
holes provided for this purpose in the support base by means of two screws or other similar methods to prevent any
possible noise or vibration that could adversely affect the pump operation.
The pump should not be installed at a geometric height of more than 3.5 metres above the water level.
In order to obtain optimum pump self-priming, it should be installed at a maximum of 2.5 metres above the water
level.
The pump should be protected from any possible flooding and correct ventilation should be ensured, but without
risking the effects of freezing. In the case of outside installation, the pump should be protected from rain and a power
supply cable in accordance with EEC standards, type H07-Requirement Number-F (in accordance with VDE 0250)
should be installed. The pump is normally supplied without an electric power cable.
Assembling the Piping
We recommend the installation of cut-off valves in both pump suction and impulsion so that the pump may
be removed from the installation without having to empty the whole circuit first.
The suction piping should be assembled with a slight inclination towards the pump to prevent air pockets forming
inside.
It is very important that both the suction and impulsion piping are independently supported and correctly fixed in place
so that the pump does not have to support their weight nor the vibration produced by the water flow though them. In
a situation where a long length of impulsion piping is used, we recommend the installation of a check valve to prevent
the water hammer produced by the return of the water causing any damage when the pump stops.
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ENGLISH