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X9 X8
X3
X6
X4
X5
MOD
T.B.
T.L.
14
Mod. 17
230 V aux
M5
N L
230 V
IT
Schema comando
IWH02
Connettori di
CN1-X1-X9
collegamento
TR1
Trasformatore
TR2
Trasformatore di
accensione
Fusibile esterno 3.15A
F
Fusibile 2A
F1
Elettrodo accensione/
E.A./R.
rilevazione
M5
Morsettiera per
collegamenti esterni:
230V
V
Ventilatore
Valvola gas
VG
Operatore valvola gas
OPE
Modulatore
MOD
Termostato bruciatore
T.B.
T.L.
Termostato limite
30
IWH02
TR1
CN1
X7
F1=2A
X2
X1
PAD
1
3
S.S.
F.L.
-t°
1
X4
bl
bl
br
br
F= 3.15A
2
1
Pressostato analogico
PAD
differenziale
Sonda (NTC)
S.S.
temperatura circuito
sanitario
F.L.
Flussostato sanitario
TAG (*)
Termostato antigelo
Resistenza filo scaldante
RFS (*)
viola
pu
rosso
r
bk
nero
gy
grigio
pk
rosa
bl
blu
marrone
br
bianco
w
arancione
or
(*)
Solo su modelli per
installazione esterna
E.A./R.
TR2
M5
X1
EN
Control circuit diagram
IWH02
Connection fittings
CN1-X1-X9
Transformer
TR1
TR2
Ignition transformer
F
External fuse 3.15A
F1
Fuse 2A
Ignition/detection
E.A./R.
electrode
Terminal board for
M5
external connections:
230V
V
Fan
VG
Gas valve
OPE
Gas valve operator
Modulator
MOD
Burner thermostat
T.B.
Maximum temperature
T.L.
thermostat
PAD
Analogue differential
pressure switch
VG
OPE OPE
1
2
3 4
MOD
V
1 2
3
4 5
pk
3
2 1
4
X2
Mod. 11-13
230 V F= 3.15A
N L
230 V aux
M5
F
2 1
X1
Mod. 11-13-17 (*)
bl
AMP
bk
T.AG.
bl
bl
br
br
F = 3.15A
F
N L
230 V
Domestic hot water
S.S.
circuit temperature probe
(NTC)
Domestic hot water flow
F.L.
switch
TAG (*)
Anti-freeze thermostat
RFS (*)
Heating wire resistor
violet
pu
red
r
black
bk
gy
grey
pk
pink
bl
blue
br
brown
white
w
orange
or
Only on models for outdoor
(*)
installation
w
RFS
w
2
1
X1
Fig. 19
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