Electrical Wiring; Electrical System - Riello 40 GS20/M - HEATER Manuel D'entretien

4.

ELECTRICAL WIRING

4.1 ELECTRICAL SYSTEM,

D8018
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 1mm
(Unless requested otherwise by local standards and legisla-
tion).
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) inser-
ted 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 efficien-
cy on start-up. The boiler limit thermostat (TL) normally en-
sures the burner halts. If this does not happen a time switch
halting the burner at least once every 24 hours must be ap-
plied in series to limit thermostat (TL).
2546001
(as set up by the manufacturer)
2
.
6 GB
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
MV – Fan motor
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