Electrical Connections; Important - baltur BT 250 DSG-4T Manual De Instrucciones

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 con-
nections (line and thermostats),
follow the wiring diagram enclo-
sed. 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 fi gure , 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 fl oat (3),
pass the two 7 and 4 pole plugs
through the hole (see fi gure 2).
Connect the power supply ca-
bles (4) to the contactor, connect
the cable to ground (5)
and close the cable holder.
3) Reposition the cable fl oat as in
fi gure 3. Turn the cam (6) so that
the fl oat exerts suffi cient pressu-
re on the two cables, then tighten
the screws that fasten the cable
fl oat. 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 Ø 9.5÷10
mm and Ø 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, tighten the 4 screws (1) with
a torque of about 5 Nm to ensu-
re the correct seal. At this point,
to be able to access the control
panel (8), unfasten the transpa-
rent door (7), using slight touch
pressure in the direction of the
arrows in fi gure 4, move it the
short distance to separate it
from the lid.
5) to properly resecure
transparent door
panel proceed as
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.
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the
on the
indicated
Figura 1
Figura 2
Important:
only qualifi ed technicians may
open the burner's electrical pa-
nel.
Figura 3
Figura 4
Figura 5