WIRING SCHEME
The wiring scheme to be carried out by technician are:
— Power Supply Line
— Thermostats Line
— Eventual blocking lamp and/or hour-meter
ATTENTION:
— Do not invert neutral with phase.
— Ensure a good earth connection.
.
ECO 3-ST
1
2
2 2 3 4 5 6 7 8
MA
FA
INDEX
CO
HOUR-METER
F
FUSE
FA
ANTI-INTERFERENCE FILTER
FR
PHOTORESISTANCE
IG
MAIN SWITCH
LS
SAFETY LAMP
MA
CONTROL BOX
MB
BURNER MOTOR
PB
BURNER CONNECTOR
PR
PREHEATER
SC
PLUG
TA-TC BOILER ENVIRONMENT THERMOSTAT
TR
IGNITION TRANSFORMER
TS
SAFETY THERMOSTAT
Tm
MIN. PR THERMOSTAT
VE
ELECTROMAGNETIC VALVE
ECO 3 R-ST
9
101112
Tm
PR
TR
M
MB
VE
PB
B4
S3
T2 T1 N
L1
SC
TS
CO
H
Z
TC-TA
F
LS
IG
N
N
L
N
1
2
2 2 3 4 5 6 7 8
FR
ECO 5 R N-ST
9
101112
Tm
PR
TR
M
MB
VE
PB
B4
S3
T2 T1 N
L1
SC
TS
CO
H
Z
TC-TA
F
LS
IG
N
N
L
N
MA
FR
GB
17