28
6.13 Electrical connections and External
controls
The boiler is supplied with a mains cable. Connect the boiler
to a 230V -50Hz single phase power supply through a fused
mains switch, with at least 3 mm spacing between contacts,
fused at 3 amps.
If this cable needs to be replaced, an original spare must be
requested from Sime Ltd.
The heating control of the boiler can be achieved by connection
of a volt free room thermostat, room thermostat/timer. For
connection details see section "External timers and Room
Thermostats").
The heating control of the boiler can be achieved by connection
of either a volt free room thermostat, room thermostat/timer
or a dedicated control (listed below). For connection details
see section "External timers and Room Thermostats").
DESCRIPTION
CODE
External sensor kit (ß=3435, NTC 10KOhm at 25°C)
8094101
Power cable (dedicated)
6323875
Remote control HOME (open therm)
8092280
Remote control HOME PLUS (open therm)
8092281
m
CAUTION
Only qualified persons in compliance with the
instructions contained in this manual are permitted
to install, commission and maintain this boiler. The
installation of this boiler must be in accordance
with the relevant requirements of the current Gas
Safety(installation and use), the local building
regulations, and I.E.E. wiring regulations.
a
DANGER
Before carrying out any interventions described:
– isolate the power supply
– isolate the gas cock
– avoid contact with any hot surfaces.
To make the electrical connections:
– remove the two screws (1), pull the front panel (2) forwards
and release it from the top by lifting it
1
2
Fig. 22
– remove the screws (3) securing the control panel (4)
– move the panel (4) upwards (a) but keeping it in the side
guides (5) to the end of travel
– bring it forwards and down (b) until it is horizontal
3
a
b
5
4
Fig. 23
– insert the connection wires through the grommet (6) and
the opening (7) on the control panel
6
7
Fig. 24
– bring the control panel (4) to the original position and secure
it with the screws (3) which were removed previously
– connect the component wires to the terminal board (8)
following the indications provided on the data plate (9) and
as shown in section “Wiring diagram”.
3
4
8
9
SE
TA
6
5
4
3
2
1
Fig. 25
