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3. Installation
3.1. Permitted use
Before starting to install the equipment, make sure that you have disconnected the
electrical connection from the mains and that it cannot be reactivated accidentally.
The equipment must be installed in dry spaces protected against possible flooding, and it must also be
checked that the location of the equipment guarantees correct protection in accordance with the degree
of protection of the elements (IP rating).
It is highly recommended that the equipment be installed as close as possible to the collection point of
the liquid to be pumped, with a short length of supply pipes and ensuring that there is a positive inlet
pressure or, failing that, that the suction lift is as low as possible and is suitable for the suction capacities
of the pumps installed.
When the pumps are to be operated in negative suction, it is essential to install a foot
valve to ensure priming of the pumps, otherwise serious damage to the equipment
may occur*.
3.2. Hydraulic connections
When connecting the suction and discharge supply lines to the booster, make sure
that they do not transmit stresses and vibrations to the system, otherwise serious
damage may occur to the booster and the installation itself.
In order to avoid noise and vibration transmission between the pipes and the booster, it is advisable
to fit anti-vibration sleeves on both suction and discharge.
The diameter of the pipes determines the flow rate and pressure available at the points of use. Small
diameter pipes increase the noise level, reduce performance, intensify water hammer and increase
the risk of cavitation. For each suction pipe, a pipe of sufficiently large diameter must be chosen so
that the water velocity does not exceed 2 m/sec. To minimise pressure losses it should be as short
as possible and with few bends.
Before starting up the booster, check that all pipe joints and connections are correctly made and that
they do not allow air to enter the system.
If the booster is connected to a closed liquid recirculation circuit, it is advisable to install one or more
bleed valves at the highest points of the circuit.
*See FIGURE 2 in Annex
-EN/7-
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