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49
47
114
42
34
23
X1
12
1
10
9
8
7
6
5
4
13
12
10 9
Key
23 Thermocouple
24 spark electrode
32 Central heating pump
34 C.H. flow temperature sensor
42 D.H.W. temperature sensor
46 Operator gas valve
47 Modulating regulator
(Modureg) gas valve
49 Overheat cut-off thermostat
50 Heat exchan. limit thermostat
52 D.H.W. limit thermostat
60. Extended control kob to gas valve
61 C.H. selector switch
62 Time clock
63 C.H. boiler thermostat
66 Microswitch combination
gas valve
67 Ignition transformer
68. Control box with P.C.B.
72 Room thermostat (not fitted)
80 240V + 24V roomstat terminal blocks
101 P.C.B.
114 Water pressure switch
136 Flowmeter
145 C.H. pressure switch
24 V
24
66
50
136
+
-
OUT
X2
3
4
3
2
1
X5
8
7
6
5 3
2
1
9
X3
X7
2 1
63
X8
201
61. C.H. selector switch
Heating timed and hot water
220V ~ 50 Hz.
2
1
46
N
L
67
X4
2
1
6
5
4
8
7
6
5
4
3
2
1
X6
3
2 1
M
1
2
VMF7
12
11 10
9 8 7 6 5 4 3 2 1
4
3
2
1
X1
X2
13
12
10
9
7
6
5
3
2
1
X3
P1
P2
JP1
X8
P1 = C.H. max. output
(to be set on site)
P2 = D.H.W. temperature
(factory set)
J1
Jumper links on P.C.B.
JP1
Must is not required
Hot water only
continuous and
Heating
80
L
220V
N
32
2
1
4
5
d
b
80
3
a
6
5
4
2
1
230V
X4
50Hz
9
8
7
6
5
4
3
2
1
X5
2
1
3
1
X6
X7
2AT
L7
F1
RY4
RY1
RY2
JP4
TR1
hot water
4
24V
5
72
25
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