A1
CONTROL BOX
B1
Flame sensor
DW
VALVE SEAL CONTROL PRESSURE SWITCH
F1
THERMAL RELAY
FU1÷4 FUSES
H0
EXTERNAL LOCK INDICATOR LIGHT/ AUXILIARY HEATING
ELEMENT OPERATION LAMP
H1
OPERATION INDICATOR LIGHT
H2
LOCK-OUT WARNING LIGHT
H7
FAN MOTOR THERMAL SWITCH RELAY LOCK-OUT LAMP
K1
FAN MOTOR CONTACTOR
K12
BURNER LOCK-OUT AUXILIARY RELAY
K16
FLAME PRESENCE RELAY
K26
BURNER OPERATION AUXILIARY RELAY
KD
“TRIANGLE CONTACTOR“
KL
LINE CONTACTOR
KT TIMER
KY
STAR CONTACTOR
MV
FAN MOTOR
N1
”ELECTRONIC REGULATOR
PA
AIR PRESSURE SWITCH
Pm
MINIMUM PRESSURE SWITCH
PM
MAXIMUM PRESSURE SWITCH
Q1/2 DIFFERENTIAL CIRCUIT BREAKER
S1
START/STOP SWITCH
S2
RELEASE BUTTON
S4
AUT-MAN SELECTOR
S5
MIN-O-MAX MODULATION SWITCH
SG1/2 MAIN DISCONNECTING SWITCH
T2
2ND STAGE THERMOSTAT
TA
IGNITION TRANSFORMER
TC
BOILER THERMOSTAT
TS
SAFETY THERMOSTAT
X1
BURNER TERMINAL BOARD
Y10
AIR SERVOMOTOR
YP
MAIN SOLENOID VALVE
YS
SAFETY SOLENOID VALVE
Wire series colour
GNYE GREEN / YELLOW
BU BLUE
GY GREY
BN BROWN
BK BLACK
BK*
BLACK CONNECTOR WITH OVERPRINT
L1 - L2- L3 Phases
N - Neutral
Ground
CAUTION / WARNINGS
For the dimensioning of sections S1, S2 and the dimensioning
of protection devices Q1, Q2, SG1, SG2, FV1, FV2 refer to the
chapter “ELECTRICAL CONNECTIONS”.
ENGLISH
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0006160271_202007
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