Hydraulic Connections; Electrical Connections - Pentax IPFC 109 Manual De Instrucciones

ATTENTION

5.3. Hydraulic connections

ATTENTION
ATTENTION
ATTENTION
In case of withdrawal from reservoir or collection tank, this must be dimensioned according to the maximum
water request point and to the supply possibility of the water system.

5.4. Electrical connections

ATTENTION
For every dismantling intervention that should be necessary, pre-emptively proceed to
the hydraulic and electrical insulation of the components to be dismantled.
Remember that for every dismantling and assembly operation it is a good rule to
check and, if necessary, replace, the gaskets and to fasten the flanges proceeding
progressively for nuts diametrically opposite.
The installation of the units described in this manual must be carried out by qualified
staff that has read and understood the content of this manual and the eventual attached
documentation.
In carrying out the hydraulic connections verify that:
the sections of the intake and flow piping are equal or greater than those of the
−
collectors or stub pipe or, however, such to avoid a too high speed of the flow (it is
preferable to remain below 2 m/sec.).
the intake and flow piping is perfectly aligned with the collectors of the inserted
−
unit
− the intake piping has the lowest possible number of bends and section variations
and is as short as possible
We recommend overlapping anti-vibrating elastic joints to eliminate any misalignment
and to reduce the propagation of the vibrations.
We recommend installing a float switch (the electric board is already prepared for the
connection) to prevent dry running.
In case of water withdrawal from well or, however, above water level, we recommend
mounting a bottom valve with filter on to the intake piping.
The electric connections must be carried out by qualified staff, following the electric
layouts and applying the state-of-the-art rules.
Verify that the electric power supply system is provided with an efficient earthing
system. The yellow-green earth conductors must be connected to the electric boards
before the other conductors whereas, during the disconnection phase, they must be
the last to be removed.
Verify the correspondence between voltage and frequency of the electric power supply
network and the plate data of the motor-driven pumps.
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