baltur TBML 900 ME, Instruction Manual For Installation, Use And Maintenance

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ELECTRICAL CONNECTIONS
• It is advisable to make all connections with flexible electric wire.
• The supply conductor minimum section must be 1.5 mm2.
• Conductor cross-sections not specified are to be considered as
0,75 mm².
• 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 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.
• 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
thermostats).
• Remove the external insulating seal of the supply pipe necessary
for the connection, preventing the cable to touch metal parts.
CAUTION / WARNINGS
Only professionally qualified personnel may open the burner
electrical switchboard.
AUXILIARY PUMP
In some cases (excessive distance or differences in level) the system
must be implemented with a "loop" supply circuit with an auxiliary
pump, avoiding to connect the burner pump directly to the tank.
In this case, the auxiliary pump can be started when the burner starts
and stopped when it stops.
The electrical connection of the auxiliary pump is made by connecting
the coil (230V), which controls the pump remote control switch, to ter-
minals “N” (input terminal board of the equipment) and “L1” (downstre -
am the motor remote control switch).
Always follow the instructions below:
• The auxiliary pump must be installed as close as possible to the
liquid to be sucked.
• The head must be suitable for the relative plant.
• We recommend a flow rate equal at least to that of the burner
pump.
• The connection pipes must be dimensioned based on the flow
rate of the auxiliary pump.
• Avoid electrically connecting the auxiliary pump directly to the
remote control switch of the burner.
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