Electrical Installation Rules; Equipotential Connection - La Cimbali M39 Class GT Utilisation Et Installation

These chapters in the manual are to be used by qualified, authorized technical staff.
Prior to installation, make sure there is a circuit breaker installed with a distance between the contacts that allows for complete
disconnection when there is a category III overload and that provides protection against current leakage equal to 30 mA. The
circuit breaker must be installed on the power supply in compliance with installation rules.
If the power supply is not working properly, the machine can cause transitory voltage drops.
The electrical safety of this machine is only ensured when it is correctly connected to an efficient earthing system in compliance
with the electrical safety laws in force. This fundamental safety requirement must be verified. If in doubt, request that a qualified
electrician inspect the system. The manufacturer cannot be held responsible for any damage caused by the lack of an earthing
system on the electrical supply.
It is unadvisable to use adaptors, multiple plugs, and/or extension cords. If their use is indispensible, only use simple or multiple
adaptor plugs and extension cords that are in compliance with safety laws. Make sure these devices do not exceed the voltage
capacity marked on the simple adaptor and on extension cords, and the maximum voltage marked on the multiple adaptor.
Check that the type of connection and voltage correspond with the information on the nameplate: see illustrations chapter figure 1.
For machines with a Y connection: see illustrations chapter figure 2.
For machines with a ∆ connection: see illustrations chapter figure 3.
For machines with a single-phase connection: see illustrations chapter figure 4.
This type of connection, required by some laws, prevents differences in the electric potential level between the earthing connections
of equipment installed in the same room.
This machine is provided with a clamp underneath the base for connection to an external equipotential cable.
After installation, this type of connection MUST be made:
• Use a cable with a nominal section in compliance with the laws in force.
• Connect one end of the cable to the clamp (see illustrations chapter figure 5) and the other end to the earthing of adjacent
equipment.
Failure to follow this safety norm releases the manufacturer from any responsibility for machine breakdowns or damage to people
or property.
NOTE: DO NOT CONNECT TO THE POWER SUPPLY EARTHING BECAUSE IT IS NOT CONSIDERED AN EQUIPOTENTIAL
CABLE CONNECTION.
Bear in mind that Gruppo Cimbali S.p.A. is not responsible for damage caused by improper electrical connections,
and that the installer is responsible for any damage.

3. Electrical Installation Rules

4. Equipotential Connection

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