34
Installation
Electrical connection
Front
view
Side
view
1
2
3
4
0-10Volt
Open-
Therm
On/Off
T3
DHW
230V~
AC
230V
out
230V~
AC
230V
out
L
N
L
N
L
N
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6
Error
signal
Heat
demand
signal
LPG
On/Off
1 2 3 4 5 6 7 8 9 10 11 12 13 14
T10
General
purpose
LWCO
N
N
L
230V Pump / 3-WV.
L
230V Pump P3
230V out
230V~ AC
T4
Out
8X.44.08.00 / 05.1
1
L
N
230V DHW pump
Bus
8X.44.09.00 / 05.1
1
0-10Volt
Open-
Therm
On/Off
T3
DHW
230V~
AC
230V
out
230V~
AC
230V
out
L
N
L
N
L
N
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
1 2 3 4 5 6
Error
signal
Heat
demand
signal
LPG
On/Off
1 2 3 4 5 6 7 8 9 10 11 12 13 14
T10
General
purpose
LWCO
N
N
L
230V Pump / 3-WV.
L
230V Pump P3
230V out
230V~ AC
T4
Out
8X.44.08.00 / 05.1
1
L
N
230V DHW pump
Bus
8X.44.09.00 / 05.1
1
The boiler has 4 socket blocks for all
electrical connections.
1. High voltage supply (230V)
2. Voltage free switches (230V relays)
3. Low voltage sensors
4. Communication bus for cascaded
R40 ECO boilers
PG glands for cable duct already
assembled in the factory. For a few
connections, some PG glands are
supplied separately.
The maximum cable diameter for the
terminals is 2.5mm
2
.
Connect the cable by pushing down the
control on the terminal strip using a flat
screwdriver.