Electrical Wiring - Riello 40 Installation, Use And Maintenance Instructions

ELECTRICAL WIRING

~ 50Hz 230V
Main switch
KEY TO LAYOUT
– Motor capacitor
C
CN1 – Ionising probe connector
– Ignition electrode
E
– Hour counter
h1
(230V - 0.1A max.)
MV – Fan motor
PA – Air pressure switch
3389
WARNING:

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 1 mm
otherwise by local standards and legislation).

The electrical wiring carried out by the installer must comply with the
rules in force in the country.
IMPORTANT
The burners have been approved for intermittent operation.
This means that they must stop once every twenty four hours
to permit the electrical control box to check its efficiency at
start-up. Normally the boiler's limit thermostat (TL) ensures
the stopping of the burner. If this is not the case, it is neces-
sary to apply in series with the (TL) a timer switch that turns
off the burner at least once every twenty-four hours.
TESTING
 Check the burner has stopped by opening the thermostats.

Check that the burner has locked out during operation by
opening the connector (CN1) inserted in the probe's red wire,
located outside the control box.
CONTROL BOX, (see fig. 2)
Black
To extract the control box from the burner it is necessary:
White

Blue to disconnect all the connectors connected to it, the 6 pin
plug, the high voltage cables and the earth wire (TB);
 undo the screw (A) and pull out the control box in the direc-
tion of the arrow.
For the installation of the control box it is necessary:

to tighten up the screw (A) with a tightening torque of 1 ÷
1.2 Nm;
 connect all the connectors that were previously disconnected.
D7057
PG – Minimum gas pressure switch
RS – Remote reset conn.
– Lockout light
SB
(230V - 0.5A max.)
SM – One stage gate conn.
SO – Ionisation probe
TB – Burner earth
5
Fig. 2
A
– Limit thermostat
TL
– Safety thermostat
TS
T6A – Fuse
– Adjustment valve
V1
– Safety valve
VS
XP6 – 6 pin plug/socket
XP7 – 7 pin/plug socket
GB
. (Unless requested
2
E9322