Wiring Diagram - Ferroli Optimax 25 C Instructions For Installation, Use And Maintenance Manual

Wall-mounted gas fired, pre-mix condensing combination boiler
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4.6 Wiring diagram

Key
Fan
16
Ferroli pump
32
C.h. flow temperature sensor
34
Combination gas valve
44
Overheat cut-off thermostat
49
Spark electrode
81
Ionisation electrode
82
Diverting valve
95
Water pressure switch
114
Flowmeter
136
Return sensor
186
Flue temperature sensor
191
Remove if
external
controls
fitted
230 Vac
N
230 V
L
34
34
X3
TR
F2A
1 2 3 5
CLOCK
S4965V1018
DC F02.1
32
95
12V
186
GND
OUT
136
49
T
191
114
6
5
4
4
3
10
9
8
7
6
8
7
6
3
2
1
2
1
5
4
3
2
1
4
3
2
X6
X1
X2
X7
DSP49A1100
CPD5.1
24 V.
fig. 23
Optimax 25 C
81
82
X1
L
5
10
N
4
9
3
8
2
7
1
6
X12
8
16
7
15
6
14
5
13
4
12
3
11
2
10
1
9
X11
3
6
2
5
1
4
1
2
3
4
5
6
5
1
X5
TACHO
V1
44
V2
GND
16
PWM
24V

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