Installation
4
Installation
GB
Electrical connections
Before performing any work on the boiler, first disconnect it
from the electrical power supply using the external bipolar
switch and remove the fuse
230 V earth
The connection uses a 2P + E cable supplied with the appliance,
connected to the main board of the electrical unit.
Peripheral unit connection
To access peripheral unit connections carry out the following steps:
- Disconnect the boiler from the power supply
-
open the cover.
The following connections are located here:
the room thermostat
the underfloor heating thermostat
the external sensor
The E-Bus connection to link to the "remote control" unit (Pla
tine A).
Other optional boards can also be inserted for management of the
following:
room sensor
optional board (Platine B)
For further information on the accessories available, see our special
catalogues.
Room thermostat Connection
- remove shunt TA1,
- connect the TA in place of shunt TA1 on the connecting block.
230V
L
N
B
1
2
3 4
5
6
T
E-BUS
TA1
FLOOR
E-BUS
SE
TA2
L
N
B
1
2
3 4
5
6
T
E-BUS
TA1
FLOOR
E-BUS
SE
TA2