6.5
Electrical connections
6.5.1
Recommendations
Caution
Only qualified professionals may carry out electrical connections,
always with the power off.
Caution
Do not connect the power supply directly to the Peak rate/Off-
peak rate contact.
The connection is made on the terminal block.
Caution
To ensure the conformity of electrical installation, the appliance
must be powered by a circuit comprising an omnipolar switch with
an opening gap distance of more than 3 mm. The circuit must be
protected by fuses or circuit breakers calibrated according to the
output of the domestic hot water tank.
Caution
The equipment must be connected in accordance with European
standards and, in all cases, connections must comply with
prevailing national standards. The circuit must be protected by a
30-mA differential circuit breaker.
Caution
The electrical connection of the appliance is made with an
appropriate rigid cable with a correctly sized cross-section that
comprises a green / yellow earth conductor. Please refer to
prevailing national regulations on electrical installations. The
minimum is 3 x 2.5 mm
2
in single phase for an output of up to
3000 W.
Caution
The appliance must be connected to an alternating current
network.
Caution
Earth the appliance before making any electrical connections.
Caution
It is always necessary to check the correct torque on the terminals
before closing the cover on a domestic hot water tank fitted with
an immersion heater. The connections must be made in such a
way that no loosening or breakage of the filaments is possible due
to overheating, variations in charge or equipment vibration under
operating conditions.
Make the electrical connections of the appliance according to:
The requirements of the prevailing standards;
The instructions on the wiring diagrams provided with the appliance;
The recommendations in these instructions.
Earthing must comply with the prevailing installation standards.
The electrical power supply is done by means of a mains connection cable
(~230 V, 50 Hz) in accordance with prevailing national regulations for
electrical installations.
6.5.2
Types of connections to the distribution board
There are different types of electrical connection for the thermodynamic
water heater depending on the end user's requirements.
The cables are provided by the installer.
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