IOM WQL524 1604 358591

19
English
4 - Installation (continued)
4.4 Water connections
WARNING
The attachments at the water inlet and outlet
shall be connected in compliance with the
instructions which can be found on the labels in
the proximity of the attachments.
Connect the water lines of the plants with the attachments of the unit
whose diameters and positions are shown by Chapter 8.
4.5 Power supply
DANGER
Before carrying out any operations on the
electrical system, make sure that the unit is
deenergised.
DANGER
It is important that the appliance is grounded.
DANGER
The company in charge of the installation shall
conform to the standards applicable to outdoor
electrical connections.
The manufacturer may not be held liable for any damage and/or
injury caused by failure to comply with these precautions.
The unit conforms to EN 60204-1.
The following connections shall be provided:
n A 3-phase and grounding connection for the power supply
circuit.
n The electrical distribution system shall meet the power absorbed
by the appliance.
n The disconnecting and magnetothermal switches must be sized to
control the starting current of the unit.
n The power supply lines and the insulation devices must be
designed in such a way that every line independent.
n It is recommended to install differential switches, to prevent any
damage caused by phase drops.
n The compressors are supplied through contactors controlled
from the control panel.
n Each motor is provided with an internal safety thermal device
and external fuses.
n The power supply cables must be inserted into dedicated
openings on the front of the unit, and the will enter the electrical
board through holes drilled on the bottom of the board.