3159
5
3.4
ELECTRICAL WIRING
Control box
RMG 88....
TO BE DONE BY
THE INSTALLER
CARRIED-OUT
IN THE FACTORY
D7191
ATTENTION:
Do not swap neutral and phase over, follow the diagram shown carefully and carry out a good earth con-
nection.
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 compliance with the rules in force in the country.
Verify that the burner stops by operating the boiler control thermostats and that the burner locks out by sepa-
rating 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 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 limit thermostat (
TL
).
KEY TO LAY-OUT
C
– Capacitor
CN1
– Connector SO
E
– Electrode
M
– Terminal strip
MV
– Motor
PA
– Min. air pressure
switch
PG
– Min. gas pressure
svitch
SO
– Ionisation probe
S3
– Lock-out signal
T6A
– Fuse
TA
Ignition transformer
TB
– Burner-earth
TL
– Limit thermostat
TS
– Safety thermostat
Connection
with pilot valve
Connection
without pilot valve
