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ELECTRICAL CONNECTIONS
• It is advisable to make all connections with flexible electric wire.
• Observe applicable national and European Standards (e.g. EN
60335-1/EN 50165) regarding electrical safety.
• Carefully check the cables before commissioning.
• Incorrect wiring can damage the equipment and jeopardise system
safety.
• Avoid laying the detection cable along with the power cables or
ignition cables.
To carry out the connection of the burner to the power supply line
proceed as follows:
• Remove the cover by unscrewing the screws (1), without removing
the transparent door. In this way the burner’s electrical panel can
be accessed.
• Loosen the screws (2) and after removing the cable clamp plate
(3), make the 7 pole plug, the 4 pole plug and the modulation
control cable come through the hole. Connect the power supply
cables (4) to the contactor, connect the cable to ground (5) and
close the cable holder.
• Reposition the cable clamp plate. Turn the cam (6) so that the
plate exerts sufficient pressure on the cables, then tighten the
screws that fasten the plate. Finally, connect the related plugs and
modulation command cable, if installed.
The electric motor is equipped with thermal protector with automatic
reset that stops the unit in case of overheating.
CAUTION / WARNING
In case of lock out it is necessary to check that the motor is not
faulty and search for the possible causes of its heating.
CAUTION / WARNING
The housings for the cables for the 7 and 4-pole plugs are
provided respectively for cable Ø 9.5÷10 mm and Ø 8.5÷9
mm, this ensures the protection rating is IP 44 (Standard IEC
EN60529) for the electrical panel.
CAUTION / WARNING
Only professionally qualified personnel is allowed to open the
burner electrical panel.
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