Electrical Wiring - Riello BG5 Instrucciones De Instalación, Uso Y Mantenimiento

3.6

ELECTRICAL WIRING

D7240
Main switch
230V ~ 50Hz
Fig. 12
A
3402
TESTING
Check the burner has stopped by
opening the thermostats.
Check the burner's lockout dur-
ing operation by interrupting the
flame detector.
CONTROL BOX (see fig.12)
To remove the control box from the burner it is necessary to:
disconnect all the connectors, the 7-pin plug, the high voltage
cables and the earth wire (TB);
unscrew the bolt (A) and pull the control box in the direction of the
arrow.
To install the control box it is necessary to:
screw the bolt (A) in at a torque of 1 - 1.2 Nm;
reconnect all the connectors previously disconnected.
NOTE:
The burners have been type-approved for intermittent operation.
This means they must stop at least once every 24 hours in order to al-
low the electrical control box to check its efficiency on start-up.
The boiler limit thermostat (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 (TL).
E9275
ATTENTION:
Do not swap neutral and phase over, follow the dia-
gram shown carefully and carry out a good earth con-
nection.
The cross section of the wires must be at least 1 sq. mm.
(Unless requested otherwise by local standards and legis-
lation).
The electrical wiring carried out by the installer must com-
ply with the rules in force in the country.
See "Hydraulic systems" on page
(
*
6). If any of the hydraulic systems fea-
ture the automatic shutoff device (230V
- max. 0.5A), it must be connected to
terminals N - T2 in the 7-pin plug.
CARRIED-OUT
IN THE FACTORY
TO BE DONE BY
THE INSTALLER
7 GB
KEY TO LAY-OUT:
C – Capacitor
E – Electrode
Flame detector
F –
Hour counter
h1 –
(230V ~ - 0,1A max.)
K – Thermostat enabling
start-up after preheating
Motor
MV –
Oil heater
PH –
Remote reset
RS –
SER – Safety lockout device
S3 – Remote lockout signal
(230V ~ - 0,5A max.)
Fuse
T6A –
Burner earth
TB –
TL – Limit thermostat
TS – Safety thermostat
Oil valve
V1 –
Safety lockout device
V2 –
7 pin plug
X7 –
XP7 – 7 pole socket