ELECTRICAL CONNECTIONS - WIRING DIAGRAMS
The boiler must be connected to an earthed, single-phase 230V-50 Hz mains supply by means of a three-wire
cable, ensuring that connections to the PHASE and NEUTRAL terminals are made correctly.
A omnipolar switch must be used with contacts opening to at least 3 mm.
The power lead must only be replaced by another with the following characteristics: "HAR H05 VV-F" 3 X 1.00
mm
2
. The ground wire shall be 2 cm longer than phase and neutral wires.
Installation must be made in compliance with SAFETY REGULATIONS IN FORCE.
Ground connections are compulsory. Connect the boiler to an efficient grounding system.
Voltage
Frequency
V
230
To gain access to the electrical panel which houses the power supply terminal block and any connection to a
room thermostat, proceed as follows:
● Disconnect the boiler power
supply
● Undo the two grating screws
(fig. 1)
● Undo the two jacket fixing
screws (fig. 2)
● Raise the jacket and then pull it
towards you (fig. 3)
● To access electrical and
electronic parts loosen screws A
and pull the entire panel
outwards
(fig.
downwards and undo the
screws B on the cover C (fig. 5)
fig.3
Absorbed power
Hz
MC
0,115
50
4).
Tilt
fig.1
fig.4
A
kW
MCS
0,145
A
Protection
Noise level
index
MC
IP
51
X 4D
fig.2
fig.5
c
B
36
dB (A)
MCS
46