*
IONISATION CURRENT MINIMUM 3 μA
WITHOUT T2
A1
CONTROL BOX
A3
VALVES TIGHTNESS CONTROL
B1
PHOTORESISTANCE / IONISATIONELECTRODE
HO
EXTERNAL BLOCK LAMP
H1
OPERATION LIGHT
MV
MOTOR
P1
HOUR METER
PA
AIR PRESSURE SWITCH
PG
GAS PRESSURE SWITCH
T2
2ND STAGE THERMOSTAT
TA
IGNITION TRANSFORMER
TC
BOILER THERMOSTAT
TS
SAFETY THERMOSTAT
Y1/Y2
ELECTROVALVE
Y10
AIR SERVOMOTOR
ELECTRIC SCHEME TBG 35 P
ONLY FOR LGB 21
GB
20 / 20
0006081426_201203