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0006160250_201803
A1
APPARECCHIATURA
A3
VALVE SEAL CONTROL
B1
PHOTORESISTOR / IONISATION ELECTRODE / UV
PHOTOCELL
F1
THERMAL RELAY
FU1÷4 FUSES
H0
EXTERNAL LOCK INDICATOR LIGHT/ AUXILIARY HEATING
ELEMENT OPERATION LAMP
H1
OPERATION INDICATOR LIGHT
H17
FAN OPERATION INDICATOR LIGHT
H19
MAIN VALVE OPERATION INDICATOR LIGHT
H2
LOCK-OUT WARNING LIGHT
H23
TRANSFORMER OPERATION INDICATOR LIGHT
K1
FAN MOTOR CONTACTOR
KE
EXTERNAL CONTACTOR
MV
FAN MOTOR
P M
“MAXIMUM PRESSURE SWITCH“
P1
“HOUR METER“
PA
AIR PRESSURE SWITCH
Pm
“MINIMUM PRESSURE SWITCH“
S1
START/STOP SWITCH
S2
RELEASE BUTTON
S8
1st/2nd STAGE SWITCH
SG
MAIN SWITCH
T2
2ND STAGE THERMOSTAT
TA
IGNITION TRANSFORMER
TC
BOILER THERMOSTAT
TS
SAFETY THERMOSTAT
X1
BURNER TERMINAL BOARD
X1B/S POWER SUPPLY CONNECTOR
X2B/S 2nd STAGE CONNECTOR
X3
Pm CONNECTOR
X4
YP CONNECTOR
X8B/S VPS 504 CONNECTOR
X9
TRANSFORMER CONNECTOR
X18
SYNOPTIC CONNECTOR
Y10
AIR SERVOMOTOR
Y1/Y2 1st / 2nd STAGE SOLENOID VALVES
Z1
FILTRO
GNYE GREEN / YELLOW
BU BLUE
BN BROWN
BK
BLACK
BK*
BLACK CONNECTOR WITH OVERPRINT
Ground
L1 - L2- L3 Phases
N - Neutral
Summary of Contents for 17830010
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Page 68: ...ENGLISH 32 34 0006160250_201803 WIRING DIAGRAMS ...
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