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24 V
47
114
50
51
42
34
136
+
-
OUT
X1
X2
12
11
10
9
8
7
6
5
4 3
2
1
4 3
2
1
13
12
10
9
8
7
6
5
3
2
1
X3
63
157
X8
16 Fan
32 Central heating pump
34 C.H. flow temperature sensor
42 D.H.W. temperatuure sensor
43 Air pressure switch
46 Operator gas valve
47 Modulating regulator
(MODUREG) gas valve
49 Overheat cut-off thermostat
50 Heat exchan. limit thermostat
51 Heat exchan. frost thermostat
61 C.H. selector switch
62 Time clock
63 C.H. boiler thermostat
68 Control box with P.C.B.
72 Room thermostat (not fitted)
80 Five pole terminal 240V + 24V
81 spark electrode
82 Flame sensing electrode
83 Automatic ignition control panel
84 1. gas valve operator
85 2. gas valve operator
86 automatic control reset knob
101 P.C.B.
114 Low water pressure switch
136 Flowmeter
145 C.H. Pressure switch
157 D.H.W. thermostat
164 Fault diagnostic/temperature control panel
230V ~ 50 Hz.
X6
X5
X4
83
X3
1
2
3
5
6
7
8
9
12
13
14
2
1
4
3
129
2 1
X4
6
5
4
X5
9
8 7 6
5 4
3
2 1
X7
2
1
X6
3
2
1
M
2
1
VMF7
1001
12
11 10
X1
P1
81
82
85
84
49
80
L
230V
N
16
43
32
5
5
4
2
1
3
4
d
b
80
a
LD2
L1
L2
L3
L4
L5
L6
8
1
X1
9 8 7 6 5 4 3 2 1
4
3
2
1
X4
X2
X5
13
12
10
9
7
6
5
3
2
1
2
X7
X3
L7
P2
RY1
RY2
JP1
X8
TR1
JP1 and JP4: Jumpers
JP1
Is not required
JP4
Is not required
P1 = C.H. max. output (to be set on site)
P2 = D.H.W. temperature (factory set)
61. C.H. selector switch
Heating timed
Hot water only
and hot water
NOTE:
THE TRANSFORMER ON THE P.C.B. HAS A
BUILT-IN OVERHEAT PROTECTION.
IF THIS IS OPEN, ALL LED'S WILL BE OFF BUT
THE C.H. PUMP (32) WILL RUN
SWITCH OFF THE BOILER FOR AT LEAST
20 MINUTES
CONNECTOR
A D.H.W. FLOW-
SWITCH (ON-OFF) CAN
BE CONNECTED TO
TERMINALS 1 AND 3
CONNECTOR
24V
SHORT CIRCUIT 12-13
- BOILER STARTS FOR C.H.
72
- WAITING TIME IS EXCLUDED
- MAX BURNER PRESSURE C.H.
CAN BE CHEDKED/SET WITH P1
6
5
4
2
1
230V
50Hz
9
8
7
6
5
4
3
2
1
3
1
1
X6
2AT
F1
RY4
JP4
Heating
continuous and
hot water
X2
X3
29
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