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A
VALVOLA GAS
OPE
OPE
MOD
1
2
1
2
3
4
rosa
6
T.F.
CN9
7
S.R.
T.L.
-t°
CN10
4
1
[EN] - Multi-wire diagram
"L-N" POLARISATION IS RECOMMENDED
Blu=Blue
Marrone=Brown
Nero=Black
Rosso=Red
Bianco=White
Viola=Violet
Grigio=Grey
Rosa=Pink
A = Gas valve
B = 3.15 A F fuse
C = Room thermostat jumper (voltage-free con-
tact)
MP
Control card with digital display and
integrated ignition transformer
P1
Potentiometer to select off - summer -
winter – reset / temperature heating
B
Fusibile 3.15A F
M3
P
F
3
4
5
CN2
1
CN8
1
1
7
3V
1
2
3
CN4
1
3
P2
Potentiometer to select domestic hot
water set point
P3
Potentiometer to select temperature
regulation curve
JP1
Bridge to enable knobs for calibration
JP2
Bridge to reset the heating timer and log
maximum electrical heating in calibration
JP3
Bridge to select NG - LPG
JP4
Selection of internal water tank with
sensor (JP4 inserted)
JP5
Only-heating function prearranged for
internal water tank (JP5 inserted)
JP6
Not used
F1
Fuse 2A T
F
External fuse 3.15A F
M2
Terminal board for external connections:
DHW timer
M3-M6 Terminal board for external connections
T.A.
Room thermostat
Ponticello termostato ambiente
230 V
(contatto pulito)
L
N
230 V
CN6
CN5
CN13
P1
MP
CN9
1
CN10
4
1
CN11
12
C
P.O.S.
S.B.
M6
M2
-t°
12
CN12
1
JP5
JP4
JP3
JP2
JP1
JP6
P2
P3
3
CN4
1
2
CN3
1
6
F1
CN2
1
TR1
FA1
E.A./R. Ignition/Detection electrode
TR1
Remote ignition transformer
T.F.
Fumes thermostat
S.R.
Primary circuit temperature probe (NTC)
T.L.
Limit thermostat
OPE
Gas valve operator
P
Pump
3V
3-way servomotor valve
P.O.S. DHW timer
S.B.
Water tank sensor
PA
Heating pressure switch (water)
MOD Modulator
CN1÷CN13 Connectors
(Accessories: CN6 external
sensor/control panel kit -
CN7 zone valve kit - CN8 remote
alarm kit)
START AQUA 24 BI
P.A.
MOD
2
3
1
CN11
1
Elettrodo
E.A./R.
A/R
33
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