7
20013756
GB
4.
ELECTRICAL WIRING
4.1
ELECTRICAL SYSTEM,
(as set up by the manufacturer)
XP7
– 7 pole socket
XP4
– 4 pole socket
XP6
– 6 pole socket
MB
– Auxiliary terminal block
S1
– Switch for:
MAN =
manual operation
AUT =
automatic operation
OFF =
stand by
S2
– Button for:
– =
power reduction
+ =
power increase
TB
– Burner-earth
SO
– Ionisation probe
CN...
– Connectors
TA
– Ignition transformer
PA
–
Min. air pressure switch
PAM
–
Max. air pressure switch
C
– Motor capacitor
SM
– Servomotor
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 legis-
lation).
The electrical wiring carried out by the installer must be in
compliance with the rules in force in the country.
TESTING
Check the shut-down of the burner by opening the thermo-
stats, and the lock-out by opening the connector (
CN3
)
inserted in the red cable of the probe placed outside of the
control box.
NOTES
The burners have been type-approved for intermittent opera-
tion. This means they must stop at least once every 24 hours
in order to allow the electrical control box to check its effi-
ciency 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
).
20126443
BROWN
RED
BL
UE
WHITE
BLA
C
K
