Guidelines For Electrical Connection; Guidelines For The Electrical Control Panel; Guidelines For The Motor - Xylem LOWARA e-SV Series Additional Installation, Operation And Maintenance Instructions

en – Translation of the Original Instructions

4.5.2 Guidelines for electrical connection

1. Check that the electrical leads are protected against:
2. Check that the power supply line is provided with:

4.5.3 Guidelines for the electrical control panel

NOTICE:
The electric panel must match the ratings on the unit data plate. Improper combinations could
damage the motor.
1. Install appropriate devices for protecting the motor from overloads and short circuits:
2. Fit a system for protection against dry running to which to connect a pressure switch, or a
3. On the suction side install:
4. If required, install phase failure sensitive thermal relays.

4.5.4 Guidelines for the motor

If using a motor other than the standard motor, check that a thermal protection device has
been installed.
WARNING: Injuries hazard
The unit, equipped with a single-phase motor with automatic reset thermal overload
protection, could restart inadvertently after it has cooled down: risk of physical injury.
WARNING:
The use of units with single-phase motors with automatic reset thermal protection for
extinguishing fires and in pulverised water firefighting systems is forbidden.
NOTICE:
Only use dynamically balanced motors with half-sized key at the shaft end (IEC 60034-14), and
with normal vibration rate (N).
26
• High temperature
• Vibrations
• Collisions.
• A short circuit protection device of appropriate size
• A mains disconnection device with contact opening distance ensuring complete
disconnection for overvoltage III category conditions.
Motor
Single-phase
Three-phase
float, probes or other suitable devices.
• A pressure switch, in the case of connection to the mains water supply
• A float switch or probes, in the case of liquid drawn from a tank or basin.
Safety features
• Automatic reset thermal-ampere protection, in-built (motor protector)
• From short circuit, by the installer: aM fuses (motor start-up), or thermal
magnetic switch with C curve and Icn ≥ 4.5 kA, or other similar device.
• Thermal, by the installer: trip class 10 A overload thermal relay + aM fuses
(motor start-up), or start class 10 A motor protection thermal magnetic
switch
• From short circuit, by the installer: aM fuses (motor start-up), or thermal
magnetic switch with C curve and Icn ≥ 4.5 kA, or other similar device.
e-SV series – Additional Installation, Operation and Maintenance Instructions