baltur TBG 450LX ME, Instruction Manual For Installation, Use And Maintenance

Page: 62 / 92

ELECTRICAL CONNECTIONS
• It is advisable to make all connections with fl exible electric wire.
• The power lines must be distanced from the hot parts.
• The burner installation is allowed only in environments with pollu-
tion degree 2 as indicated in annex M of the EN 60335-1:2008-07
regulation.
• Make sure that the power line to which the unit will be connected,
has frequency and voltage values suitable for the burner.
• The three-phase or single-phase power supply line must have a swi-
tch 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.
• For the mains supply connection is required an omnipolar switch
with a contact opening gap equal or above 3 mm in accordance with
current safety regulations.
• Refer to the wiring diagram for electrical connections (line and ther-
mostats).
• Remove the external insulating seal of the supply pipe necessary for
the connection, preventing the cable to touch metal parts.
CAUTION / WARNINGS
Only professionally qualifi ed personnel may open the burner
electrical switchboard.
• In case of phase-phase 230V electrical grids, if these latter are
unbalanced, the voltage between fl ame detection electrode and
ground can not be enough to ensure burner correct operation.
The problem is solved by using a type AR1 insulating transformer
cod.0005020028 connected as shown in the following diagram.
Ph
Ph 230
ION IN
ION PROBE
AR 1
ION
L (1)
IN (2)
tensione_elettrodi
ENGLISH
16 / 44
0006160281_202007