86
2.7
ELECTRICAL CONNECTION
The boiler is supplied with an electric cable.
Should this require replacement, it must be
purchased exclusively from SIME. The elec-
tric power supply to the boiler must be
230V - 50Hz single-phase through a fused
main switch, with at least 3 mm spacing
between contacts. Respect the L and N
polarities and the earth connection.
NOTE: Device must be connected to an
efficient earthing system. SIME declines
all responsibility for injury or damage to
persons, animals or things, resulting from
the failure to provide for proper earthing
of the appliance. Always turn off the
power supply before doing any work on
the electrical panel.
2.7.1
Room stat connection
(fig. 13 pos. A)
To gain access to the electronic board con-
nector (3), remove the control panel cover
and connect the room stat to the terminals
TA (5-6) after having removed the jumper.
The thermos t at or timer -thermos t at,
recommended for better room temperatu-
re control, must be class II as specified by
standard EN 60730.1 (clean contact).
WARNING: Applying mains voltage to the
terminals of conector (3) will irreparably
damage the control board. Make sure
that any connections to be made are not
carrying mains voltage.
2.7.2
“Logica Remote Control”
connection (fig. 13 pos. B)
The electrical plant must comply with local
standards and all cables must comply with
low safety voltage requirements of EN
60730. For lengths up to 25 m, use cables
of section 0.25 mm
2
, for longer lengths up
to 50 m use cables of section 0.5 mm
2
.
First of all, assemble and wire the socket
(2), then insert the equipment which will
start-up as soon as it receives current.
To gain access to connector (3) remove the
control panel cover and connect the climate
regulator to terminals CR (6-7).
WARNING: External voltage must not be
connected to terminals 1-2-3-4 of the
"Logica Remote Control".
A telephone remote switch with a zero
potential contact or a window contact
can be connected to terminals 3-4.
Equipment for the checking of civil
plants via a telephone line includes the
model TEL 30.4 LANDIS & STAEFA.
2.7.3
External temperature sensor
connection (fig. 13 pos. C)
The cables must comply with low safety vol-
tage requirements of EN 60730. For lengths
up to 25 m, use cables of section 0.25 mm
2
,
for longer lengths up to 50 m use cables of
section 0.5 mm
2
. To gain access to boiler
connector (3) remove the control panel
cover and connect the external temperature
sensor to terminals SE (8-9).
REGOLATORE
CLIMATICO
LOGICA REMOTE
CONTROL
LOGICA REMOTE
CONTROL
SONDA
ESTERNA
2
A
B
C
3
1
Fig. 13
KEY
1
Control panel
2
“Logica Remote Control” socket
3
Conector (J2)
TA Room stat (not supplied)
CR Logica Remote Control (optional)
SE External temperature sensor (optional)
SB D.H.W. sensor
EXTERNAL
SENSOR
ROOM
STAT
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