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Idiomas disponibles
Idiomas disponibles
ELECTRICAL CONNECTIONS (TBL 75LX)
The three-phase power supply line must have a switch with fuses. The regulations
further require a switch on the burner's power supply line, outside the boiler room and
in an easily accessed position. For the electrical connections (line and thermostats),
follow the wiring diagram enclosed. To carry out the connection of the burner to the
power supply line proceed as follows:
1) Remove the lid by unscrewing the 4 screws (1) in figure 1, without removing the
transparent door. In this way the burner's electrical panel can be accessed. .
2) Slacken le screws (2) and, after removing the cable float (3), pass the two 7 and 4
pole plugs through the hole (see figure
2). Connect the power supply cables (4) to the contactor, connect the cable to ground
(5) and close the cable holder.
3) Reposition the cable float as in figure 3. Turn the cam (6) so that the float exerts
sufficient pressure on the two cables, then tightethe screws that fasten the cable
float. Finally, connect the two 7 and 4-pole plugs.
IMPORTANT: the housings for the cables for the 7 and 4-pole plugs are provide
respectively for cable
Φ 9.5÷10 mm and Φ 8.5÷9 mm, this to make sure the protection rating is IP 54
(standard IEC EN60529) for the electrical panel.
4) o reclose the electrical panel lid, tighten the 4 screws (1) with a torque of about 5
Nm to ensure the correct seal. At this point to be able to access the control panel
(8), unfasten the transparent door (7), using slight touch pressure in the direction of
the arrows in figure 4, move it the short distance to separate it from the lid.
5) to properly resecure the transparent door on the panel proceed as indicated in
5:position the hooks at their hooking points and (9) slide the door in the direction
indicated by the arrow until it clicks. It is now well sealed.
Important: only qualified technicians may open the burner's electrical panel.
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.
Figure 1
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Figure 2
Figure 3
Figure 4
Figure 5
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