A1
APPARECCHIATURA
A3
VALVE SEAL CONTROL
B1
PHOTORESISTOR / IONISATION ELECTRODE / UV
PHOTOCELL
H0
EXTERNAL LOCK INDICATOR LIGHT/ AUXILIARY
HEATING ELEMENT OPERATION LAMP
H1
OPERATION INDICATOR LIGHT
MV
FAN MOTOR
P1
"HOUR METER"
PA
AIR PRESSURE SWITCH
PG
GAS PRESSURE SWITCH
TA
IGNITION TRANSFORMER
TC
BOILER THERMOSTAT
TS
SAFETY THERMOSTAT
T2
2ND STAGE THERMOSTAT
Y1/Y2 1st / 2nd STAGE SOLENOID VALVES
Y10
AIR SERVOMOTOR
** Upon request
Without T2
Minimum ionisation current 3 μA
L1 - L2- L3 Phases
N - Neutral
Ground
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