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DANGER: Potentially explosive
atmosphere hazard
It is prohibited to start the unit in
environments with potentially explosive
atmospheres or with combustible dusts.
DANGER: Electrical hazard
Do not use the unit in swimming pools or
similar places when people are inside.
4 Installation
DANGER:
All the hydraulic and electrical
connections must be completed by a
technician possessing the technical-
professional requirements outlined in the
current regulations.
WARNING:
Always use suitable working tools.
WARNING:
When selecting the place of installation
and connecting the unit to the hydraulic
and electric power supplies, strictly
comply with current regulations.
WARNING:
Piping must be sized to ensure safety at
the maximum operating pressure.
WARNING:
Install appropriate seals between the unit
couplings and the piping.
DANGER: Electrical hazard
Before starting work, check that the
unit is unplugged, and that the unit,
the control panel and the auxiliary
control circuit cannot restart, even
unintentionally.
DANGER: Electrical hazard
Always connect the external protection
conductor (ground) to the ground
terminal before attempting to make any
other electrical connections.
DANGER: Electrical hazard
Connect the pump unit and any electric
accessories to a socket with protection
conductor (ground).
DANGER: Electrical hazard
Check that the external protection
conductor (ground) is longer than the
phase conductors; In case of accidental
disconnection of the unit from the phase
conductors, the protection conductor
must be the last one to detach itself from
the terminal.
DANGER: Electrical hazard
Install suitable systems for protection
against indirect contact, in order to
prevent lethal electric shocks.
DANGER: Electrical hazard
Check that the power supply line is
provided with a mains disconnection
device with contact opening distance
ensuring complete disconnection for
overvoltage III category conditions.
NOTICE:
Install appropriate devices for protecting
the motor from overloads and short
circuits. For three-phase motors install
one of the following thermal protections:
•
trip class 10 A overload thermal
relay + aM fuses (motor start-up), or
•
10 A start-up thermal magnetic
switch.
en - Original instructions
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