37
– connect the OpenTherm (OT) communication cables to the
terminal (4)
– connect the communication cables that may be required to
use a phone dialler for remote management to the terminal
(5)
– connect the ModBus RS485 communication cables to the
terminal (6)
– connect the 24 V power cables (2 x 0.75 mm
2
) to the terminal
(7)
5
7
6
4
Fig. 66
– secure the base (2) to the wall using the screws (8) and the
plugs (9) supplied with the main control panel
2
8
9
Fig. 67
– refit the user interface (3) on the base (2), hooking the tab (1)
on correctly.
3
2
Fig. 68
m
CAUTION
Make sure that there is no excess cable between the
base (2) and the user interface (3).
5.14 Electrical connections
m
CAUTION
The maintenance interventions described must ONLY
be carried out the professionally qualified personnel.
The installer should make the following electrical connections:
– connecting the wired power cable, supplied with the boiler, to
the 230V~50Hz mains
– connecting the outdoor probe, supplied with the appliance, to
the specific connector on the boiler
– connecting the specific connector on the boiler to the
terminals on the main control panel.
m
CAUTION
It is compulsory:
– to use an omnipolar cut-off switch, disconnect
switch, in compliance with EN standards (contact
opening of at least 3 mm)
– if the power cable is to be replaced, that ONLY
a special cable is used with a factory produced
re-wired connector, ordered as a spare part and
connected by a professionally qualified person
– to connect the earth wire to an effective earthing
system (*)
– that before any intervention on the boiler, the mains
power is disconnected by setting the main system
switch to "OFF".
(*) The manufacturer is not responsible for any damage
caused by failure to earth the appliance or failure to
observe the information provided in the wiring diagrams.
d
IT IS FORBIDDEN
To use water pipes for earthing the appliance.
The boiler is equipped with a ready wired power cable which is
to be connected to a 230V~50 Hz network.
If this cable needs to be replaced, an original spare must be
requested from
Sime
.
DESCRIPTION
CODE
Power cable (dedicated)
6127260
