Electrical Connection; Earthing; Equipotential; Power Supply Cable - Diamond OPTIMA Serie Manual Del Usuario

3.
Electrical connection should be performed in compliance with the IEC regulations, only by authorised and competent
personnel. In the first instance, examine the data shown on the technical data table of this manual, on the label and on the
electrical diagram. The envisaged connection is of the fixed type.
IMPORTANT: Ahead of each unit it is necessary to install an omnipolar main breaker, having a spacing among contacts of
at least 3mm; example:
- manual breaker of appropriate capacity, complete with fuse valves
- automatic breaker with respective magnetothermal relays.
3.1

EARTHING

It is essential to earth the unit.
To this purpose, it is necessary to connect to an efficient earthing system the terminals marked with the symbols (
on the line-receiving terminal box. The earthing system should comply with the law in force.
SPECIFIC WARNINGS
The electrical safety of this unit is assured only when it is correctly connected to an efficient earthing system as stated in
the electrical safety regulations in force; the Manufacturer declines any responsibility for the non-compliance with these
safety regulations.
It is necessary to verify this fundamental safety requisite and, in case of doubt, ask for an accurate testing of the system by
professionally qualified personnel.
The Manufacturer cannot be deemed responsible for any damages caused by the lack of unit earthing.
ATTENTION: NEVER INTERRUPT THE EARTH WIRE (Yellow-Green).
3.2

EQUIPOTENTIAL

The unit should be included within an equipotential system whose efficiency must be tested according to the law in force.
The screw marked with the label "Equipotential" is located near the terminal box on the base for models with oven, and at the
back for the remaining models.
3.3

POWER SUPPLY CABLE

The unit is supplied fitted for the following voltages:
The flexible cable for power supply connection should not have characteristics lower than the rubber insulation type
H07RN-F. The cable should be inserted through the cable clamp and firmly fastened. Furthermore, the supply voltage with
the unit functioning should not go outside the value of the nominal tension ±10%.
To have access to the terminal box in order to connect the unit to a supply network having different characteristics from those
provided for, or to replace the supply cable, you need to:
- remove the front panel (top or top + cabinet)
or
- remove the appropriate panel on the left side (cooker with electric oven)
- connect the cable to the terminal box according to need, and following the instructions shown on the provided sticker near
the terminal bord and on the present booklet.
3.4

ADVICE TO FITTERS

Activate the unit according to the use instructions, and explain its operation to the user by consulting the instruction booklet,
illustrating also any manufacturing and/or functional modifications.
Leave the instruction booklet with the user, advising that he/she should refer to it for any future consultation.
3N AC 380...415V; 3 AC 220...240V; 1N AC 220...240V 50/60 Hz.

ELECTRICAL CONNECTION

) placed