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3�16 Electric connections
The unit leaves the factory fully wired and only needs to be
connected to the power supply and control panel.
3�16�1 Preliminary warnings
All operations of an electrical nature must be carried
out by qualified personnel having the necessary legal
requirements, trained and informed about the risks re-
lated to such operations.
All connections must be made following the regulations
in force in the country of installation.
Before carrying out any work, make sure that the power
supply is switched off.
The unit must only be powered after all plumbing and
electrical work has been completed.
References:
• refer to the wiring diagrams in this manual for the
electrical connections, especially the part concerning
the power supply terminal block
• refer to the technical rating plate located on the ap-
pliance for the power supply voltage
Make sure that:
• the characteristics of the electric network are adapt-
ed to the absorption of the apparatus, considering
also any other devices in parallel operation
• the power supply voltage and system frequency
match to the values indicated on the device's plate
data
• the cables must be appropriate for the type of instal-
lation in accordance with the applicable standards
• the cable terminals are provided with pin terminals
of a cross-section proportionate to the connecting
cables before inserting them into the terminal block
• the power supply is provide with protection against
overload and/or short-circuit
It is required:
• connect the device an efficient ground connection
Momentary high-voltage surges caused by lightning or
other causes could damage the appliance.
It is recommended to install a residual-current device.
Failure to install this device may result in electric shock.
Electrical connections must be made following the in-
structions in this manual and with the standards or
practices governing the connection of electrical equip-
ment throughout the country. Insufficient capacity or
incomplete electrical connections may result in electric
shock or fire.
The power supply line must be adequately sized to
avoid voltage drops or overheating of cables or other
devices placed on the line itself.
Use a dedicated power circuit. never use a power sup-
ply to which another appliance is also connected be-
cause of the risk of overheating, electric shock or fire.
For the electrical connection, use a cable that is long
enough to cover the entire distance without any con-
nection. Do not use extension cables. Do not apply oth-
er loads on the power supply.
After connecting the interconnection and power cables,
make sure that the cables are routed so that they do
not apply excessive forces on the covers or electrical
panels. Incomplete connection of the covers may result
in overheating of the terminals, electric shock or fire.
If you need to replace the power cable, contact only
qualified staff and in compliance with the applicable na-
tional laws.
The manufacturer is not liable for any damage caused
by the lack of earthing or failure to comply with the
specifications in the respective diagrams.
InSTALLATIOn
21
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