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ELECTRICAL CONNECTIONS
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 ther-
mostats), 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 re-
moving 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 con-
tactor, 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 tighten the screws that
fasten the cable float. Finally, con-
nect 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
Ö 9.5÷10 mm and Ö 8.5÷9 mm, this
to make sure the protection rating
is IP 54 (standard IEC EN60529) for
the electrical panel.
4) To reclose the electrical panel lid, ti-
ghten the 4 screws (1) with a torque
of about 5 Nm to ensure the correct
seal. At this point , to be able to ac-
cess 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.
Figura 1
Figura 2
Figura 3
29 / 59
000608044 _200705
Figura 4
Figura 5
Important: only qualified
technicians may open the
burner's electrical panel.
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