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1.9
ELECTRICAL CONNECTION
The appliance has an IPX5D protection degree; electrical safety of the appliance is achieved only when it is connected properly to an effi-
cient earthing system, as specified by current safety standards.
The manufacturer declines any responsibility for damage or physical injury caused by failure to connect the appliance to an ef-
ficient earthing system or failure to comply with the IEC reference standards.
Open the control panel connections compartment (Fig. 9).
To carry out electrical connections, all you have to do is open the connections compartment as follows.
1. Remove the front casing (Fig. 56).
2. Disassemble the cover (a).
3. Press the two hooks on the connections compartment cover.
4. Remove the cover (a) from the control panel (b).
At this point, it is possible to access the terminal board (c).
The compartment (d) has cable clamps and screws to be used for connection of the optional external connections.
1
Also ensure that the electrical installation corresponds to maximum absorbed power specifications as shown on the appliance data
nameplate.
Boilers are supplied complete with a special "X" type power cable without plug.
The power supply cable must be connected to a 230V ±10% / 50Hz mains supply respecting L-N
polarity and earth connection; this network must also have a multi-pole circuit breaker with
class III overvoltage category in compliance with installation regulations.
To protect from possible dispersions of DC voltage, it is necessary to provide a type A differen-
tial safety device.
20
d
1
2
c
a
b
9
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