9
4. WIRING AND CONNECTIONS DIAGRAMS
- Electrical connections should be performed according to the diagrams shown below.
- Connect the boiler to a single-phase, phase neutral, 230 V ~ 50 Hz power supply through a standard
terminal block or outlet with 2A max. fuses connected between the boiler and the power supply.
Remember that the boiler should always be provided with a good earth.
IMPORTANT: The manufacturer disclaims any liability for damage to property or persons caused by
failure to earth the boiler correctly.
Electrical connections diagram
Fig. 5
Key
IC - Boiler ON/OFF switch
TA - Room thermostat
TR - Control thermostat
TF - Flue gas thermostat
VG - Gas valve
TS - Limit thermostat manual re-set
F - Thermocouple interruptor
CA - Auxiliary contact
Note: Dotted lines indicate connections to be performed during installation.
230V
50Hz
3
1
1
3
2
4
IC
2
4
N
VG
L
TS
F
5
8
7
6
9
TA
CA
10
3
8
9
10
7
5
6
4
2
1
230V ~
N
L
50Hz
TS
IC
4
3
2
1
F
VG
TA
CA
TR
TF
TR
TF
General wiring diagram