ELECTRICAL CONNECTIONS
It is advisable to make all connections with flexible electric wire.
Conductor minimum section must be 1.5 mm².
•
Electrical lines must be kept away from hot parts.
•
The burner can be installed exclusively in environments with
pollution degree 2 as specified in Annex M of Standard EN
60335-1:2008-07.
•
Make sure that the electric line to which the unit will be connected
has frequency and voltage ratings suitable for the burner.
•
The three-phase or single-phase power supply line must have
a switch with fuses. The standards also require a switch on the
burner's power line located outside the boiler room where it can
be accessed easily.
•
The main line, the relevant switch with fuses and the possible
limiter must be suitable to support the maximum current
absorbed by the burner.
•
The mains supply connection requires an omnipolar switch
with a contact opening gap equal to or greater than 3 mm in
accordance with current safety regulations.
•
Refer to the wiring diagram for electrical connections (line and
thermostats).
•
Unsheathe the external insulating cover of the power cable to
the necessary extent for the connection, thus avoiding the wire
from coming into contact with metal parts.
CAUTION / WARNING
Only professionally qualified personnel is allowed to open
the burner electrical panel.
• In case of unbalanced 230V phase-phase mains supply
systems, the voltage between the flame detector electrode and
earth might not be enough to ensure the correct operation of the
burner. The problem is eliminated using the isolation transformer
type AR1 code 0005020028 which must be connected as shown
in the following diagram.
Ph
Ph 230
ION IN
ION PROBE
AR 1
ION
L (1)
IN (2)
tensione_elettrodi
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