Unical ALKON 70 kW Instruction Manual download pdf (Page 30)

Instructions for the installer

3.17 - ELECTRICAL CONNECTIONS

Regulations in force

The elctrical safety of the appliance is assured only when it is

correctly earthed, according to the electrical rules in force.

The gas, D.H.W. and the CH system pipes cannot be used as

ground plates.

Ensure that the above safety electrical requirements subsist;

in case of doubt, ask for a professionally qualified technician

to check the appliance’s electrical system.

UNICAL refuses responsibility for any damages arising from

failure to earth the boiler correctly.

It is necessary that a qualified technician verifies that the

electrical system is adequate to the appliance’s maximum

absorbed power, indicated on the data plate, verifying in

particular that the section of the system’s cables is suitable

to the appliance’s maximum absorbed power.

For the appliance’s general electrical supply the use of

adaptors, multiple sockets and/or extension cords is strictly

forbidden.

The use of any power supplied equipment implies the

observance of several fundamental rules, such as:

- Do not touch the appliance with any wet part of your body

and/or barefooted;

- Do not pull the supply cables

- Do not expose the boiler to sunlight, rain, etc., unless it is

explicitly foreseen;

- Do not permit children or inexpert people to use the

appliance.

Mains electrical supply connection 230V

The boiler is provided complete with a mains supply cable

1,5 m long and with a cross section area of 3x0,75 mm2.

The electric connections of the boiler are shown in the section

named “ACTUAL WIRING DIAGRAM” (paragraph 3.18 page

33)

A mains supply of 230 V – 50 Hz is required. The wiring to the

boiler must be in accordance with the current CEI regulations.

WARNING!

We remind you that upstream of the electrical

connection, it will be necessary to foresee a

service relay (NOT SUPPLIED) which, when

the additional electrical safety devices (if

any) intervene, shuts down the electrical

supply to the on-off fuel valve fitted on the

gas supply circuit, but not to the boiler so as

to guarantee the running of the pump and

permit the boiler to cool down.

DANGER!

The electrical connections must be carried

out only by a qualified engineer.

Before carrying out the connections or any

other operation on the electrical parts,

always switch off and disconnect the

electricity supply and ensure yourself that it

cannot be accidentally turned on.

It is necessary to fit a double pole switch on the electrical

supply line, having a 3 mm contact separation in both poles,

in an easy accessible position in order to make quick and

safe the servicing operations.

FASTON BLOCKING

If necessary the faston can

be disconnected by slightly

folding up, with a point, the

blocking tongue ‘’ Á. ‘’.

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Unical ALKON 70 kW Instruction Manual Page 30

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