Airedale EcoChill 6kW - 46kW - Manual (Page 80)

80 EcoChill Installation Manual 7481930_v1.6.0_08_2013
ECL-ECLH 020-202
EN
23. ELECTRICAL CONNECTIONS
The ECL units are fully factory wired and only require
connection to the power supply network, downstream
of an isolator, in accordance with the applicable wiring
standards of the country of installation.
It is recommended to check the following items:
1. The electrical network is capable of meeting the
electrical input data shown in the table below.
2. The unit is only powered up on completion of
any hydraulic and electrical works.
3. Comply with the indicated phasing and earth
requirements.
4. The power supply cable must have the appropri-
ate protection against short circuits, residual
current and earth leakage with suitable isolation
from other devices.
5. The tolerance on the power supply voltage is
±10% of the nominal voltage rating of the unit
(for three phase units a maximum imbalance of
3% between phases is permitted). If these values
are not met please contact the power supply
company.
6. For the electrical connections use double insu-
lated cables in accordance with applicable wiring
standards.
MANDATORY REQUIREMENTS
1. A magneto-thermal circuit breaker conforming
to IEC-EN standards (contact aperture minimum
3 mm) is required, with adequate protection in
accordance with the data provided in the follow-
ing table, to be installed as close as possible to
the unit.
2. An effective earth connection is required. The
manufacturer cannot be held responsible for
any damages caused by lack of, or inadequate,
earthing of the unit.
3. For three phase units check the correct cable
phasing.
The cable cross sections shown in the following cable
are the recommended values based on a maximum 50
m cable length.
For longer cable lengths or different types of cable
installations, the DESIGNER is responsible for correctly
sizing the isolator, circuit breaker, earthing protection
and cable sizes, based on:
• Length
• Type of cable
• Electrical input of the unit, distance and operat-
ing ambients.
All electrical works must be carried out by PERSONNEL WITH THE APPROPRIATE LEGAL
QUALIFICATIONS, trained and aware of the risks relating to such works.
The design of the cabling and related components must be carried out by PERSONNEL WITH
APPROPRIATE QUALIFICATIONS TO DESIGN ELECTRICAL INSTALLATIONS, following interna-
tional and national standards of the location the unit is installed, in accordance with current
legal requirements.
For installation details refer to the electrical wiring schematics supplied with the unit. The
electrical wiring schematic together with the manuals must be conserved with care and
MADE AVAILABLE FOR FUTURE REFERENCE.
The weatherproof seals of the equipment must be checked before making electrical connec-
tions and the unit most only be powered on completion of all electrical and hydraulic works.
WARNING
Verify that all terminals are tight
on power carrying conductors be-
fore first start-up and 30 days after
putting into service. Afterwards
check twice yearly.
Loose terminals can result in
overheating of cables and com-
ponents..
WARNING
Using the water piping to earth
the unit is not permitted.