Electrical connector
5.2
Connecting the cable
- Connection is performed according to the installation
scheme in the image number 7.
- The neutral (zero) line is connected to the corresponding
regular clamp (N) located on the right side of the fuse set with
the voltage trigger. The regular clamp of zero line is blue.
- Instead of the conventional regular clamp for connecting the
power cable, there are three-pole automatic fuses in the
boiler, into which the power cable is introduced. The three-pole
set of automatic fuses has been upgraded with a remote voltage trigger
so that a safety circuit is achieved which, in addition to short-term
electricity protection, responds to thermal overload (the signal from the
safety thermostat activates the voltage trigger) and at the same time
interrupts the supply of all three phases into the device.
- The phase conductors are connected to a three-pole fuse (L1,
L2,
L3)
ATTENTION!
When connecting the phase
conductors, be sure to tighten the screws in the
automatic fuses in order to achieve the best
possible connection between the cable and the
clamp. Prilikom povezivanja faznih
- Connect the line for grounding to the regular clamp which is marked
with the sign for grounding. The regular clamp of the line for
grounding of the device is green and yellow.
NOTE:
The remote voltage trigger is factory-
connected within the safety set of the device
and NO cable is connected to it subsequently.
NOTE:
The room thermostat is connected to the
additional regular clamps (5V, IN) and it interrupts
the voltage of 5V DC which comes from the
processor panel of the boiler.
-
It is necessary to use room thermostats with
independent power supply eg. Battery, or Centrometal
room thermostat EST113 R5
DANGER!
If a good connection between the cable
and the clamp is not achieved there may
come to uncontrolled heating of fuses and
their failure.
- This boiler is not intended to operate without
a room thermostat or an external control unit
Image number
7
Scheme of connection of power cable
- When introducing a power cable into the boiler, through
any selected set of entries for introduction, carefully pull
through the cable to the three-pole automatic fuses to
avoid damaging the cable sets inside the device.
NOTE!
The connection of this device must
be carried out by a person that is qualified
to perform this kind of work.
- When you are finished with the connection of the
power cable and room thermostat, it is necessary to lift
the fuse set together with the remote voltage trigger
before closing the device, that is, before installing the
front cover, in order to ensure the power supply to the
boiler.
