INSTALLATION
CE4
(- A B +)
Bus 485
Room thermostat
TA
(voltage-free contact)
OT+
Open therm
M02
SE
Outdoor temperature sensor
SB
Storage tank probe
TB
Storage tank thermostat
make the electrical connections using the required
connector, as indicated in the detailed drawing
after making the connections, insert the connector in
its counterpart.
CE4
9
You are advised to use conductors with a section no
larger than 0.5 mm
Connecting the OT+ remote control
NOTE: if an OT+ remote control is connected to the sys-
tem and parameter P8.03= 1 (SERVICE), the boiler display will
appear as follows:
In particular, on the boiler display:
it is no longer possible to set the boiler OFF/WINTER/SUM-
MER status (which can now be set via the OT+ remote
control)
it is no longer possible to set the DHW setpoint (which
can now be set via the OT+ remote control)
the DHW setpoint value is shown in the INFO menu
the heating setpoint set on the boiler display is only used
if there are requests from TA but no requests via the OT+
remote control if parameter:
P3.11 = 1
or
P3.11 = 0 and jumper on pin 1-2 of X21 closed
to activate the COMBUSTION CONTROL function with the
OT+ remote control connected, it is necessary to tempo-
rarily disable the connection by setting parameter P8.03
= 0 (remember to reset the value of this parameter after
using the function)
Note that it is not possible, with the OT+ remote control
connected, to change the value of parameters P4.12 to P4.23
from 0 to 1.
Note: the connection of an OT+ remote control is not
permitted if the system already contains BE16 interface
boards. For the same reason, BE16 boards cannot be con-
nected if there is already an OT+ device. In this case, the
system will give the following error message: <<OTER>>.
Connecting the mains voltage
The connection to the mains supply must be made on the
M01 terminal board, as shown in the detailed drawing and
in the wiring diagram.
.
2
To connect the power supply cable
− remove the casing as explained in paragraph "2.10
Removing the casing"
− rotate the instrument panel
− insert the supply cable (not supplied) in the cable
grommet underneath the bracket, then connect it as
shown in the figure and fix it in place using the tear-
off tie, tightening it firmly.
28
230 V
L
N
M01
M01