WIRING DIAGRAM
ELECTRICAL CONNECTIONS
Electric lines should be placed at an adequate distance from hot parts. It is recommended that all connections are performed with electrical
flexible wires. Conductor minimum section 1,5 mm2.. The power supply must have a 'clean' sine curve. If possible, use a separate power
supply unit.
MINIMUM IONISATION CURRENT 3 μA
*
OPTIONAL
**
ONLY FOR LGB 21
L1 PHASE
GROUND
N
NEUTRAL
MV
FAN MOTOR
P1
HOUR METER
TC
BOILER THERMOSTAT
TS
SAFETY THERMOSTAT
H0
EXTERNAL LOCK-OUT INDICATOR LIGHT
H1
OPERATION LAMP
TA
IGNITION TRANSFORMER
Y1/2
MONOBLOCK VALVE
B1
IONISER ELECTRODES
PG
GAS PRESSURE SWITCH
PA
AIR PRESSURE SWITCH
A1
EQUIPMENT
A3
VALVES TIGHTNESS CONTROL
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