Electrical Wiring - Riello G20 Installation, Use And Maintenance Instructions

7.2

Electrical wiring

 Do not swap neutral and phase over, follow
the diagram shown carefully and carry out a
good earth connection.
 The electrical wiring carried out by the
WARNING
installer must be in compliance with the rules
in force in the country.
 The section of the conductors must be at
least 1mm
local standards and legislation).
7 pin plug (boiler)
7 pole socket (burner)
TESTING
Check the shut-down of the burner by opening the thermostats.
Electrical system
2
. (Unless requested otherwise by
230V ~ 50Hz
L N
Main switch
Fuse T6A
1 N T1 T2 S3 B4
Burner-earth
N
1 2 3 4
Valve
Black
Capacitor
Black
The burner is provided with a socket for the direct electrical
connection to the boiler's plug (Fig. 14).
Should the boiler be without plug, it is then necessary:
– remove the socket and respective cable mounted on the burn-
er;
– carry out the electrical connection direct to the wiring terminal
block of the burner as shown on the diagram Fig. 15.
h Hour counter
Remote lock-out lamp
(230V - 0.5A max.), if required
L
Terminal board
5 6 7 8 9
of control box
M
~
Motor
D5334
17 GB
TO BE COMPLETED
BY THE INSTALLER
Limit
T
thermostat
Safety
T
thermostat
CARRIED-OUT
IN THE FACTORY
Fig. 14
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