Riello 40 FS15 Installation, Use And Maintenance Instructions page 49

3.4 ELECTRICAL WIRING
Ionization probe
Electrode
Air pressure switch
CARRIED-OUT
IN THE FACTORY
TO BE DONE BY
THE INSTALLER
KEY TO LAY-OUT
PG – Minimum gas pressure switch
S3 – Remote lock-out signal
(230V - 0.5 A max.)
T6A – Fuse
TL – Limit thermostat
TS – Safety thermostat
V10 – Safety valve
V11 – Adjustment valve
ATTENTION:
Do not swap neutral and phase over, follow the diagram shown
carefully and carry out a good earth connection.
The section of the conductors must be at least 1mm². (Unless requested
otherwise by local standards and legislation).
The electrical wiring carried out by the installer must be in compli-
ance with the rules in force in the country.
Verify that the burner stops by operating the boiler control thermo-
stats and that the burner locks out by separating the red ionisation
probe lead connector.
NOTES
The burners have been type-approved for intermittent operation. This
means they must stop at least once every 24 hours in order to allow the
electrical control box to check its efficiency on start-up. The boiler limit ther-
mostat (TL) normally ensures the burner halts. If this does not happen a
time switch halting the burner at least once every 24 hours must be applied
in series to limit thermostat (TL).
2737
Ignition transformer
Blue
White
Black
Motor
Suppressor
Terminal board
230V
Connector
Control box
RMG 88.620A2
~
50Hz
FOR GAS LEAK CONTROL DEVICE
5 GB
ATTENTION
In the case of phase-phase feed,
a bridge must be fitted on the
control box terminal board be-
tween terminal 6 and the earth
terminal.
VERSION
(DUNGS VPS 504)
Burner
earth
D4258