Vaillant ecoFIT pure Series - Wiring Diagram: System Boiler (30 kW)

50 Installation and maintenance instructions ecoFIT pure 0020230533_06
F Wiring diagram: system boiler (30 kW)
X2
X14
L
N
19
10
20
16
2
4
11
13
14
18
7
17
8
X51
X51
X20
16
1
9
3
15
4
5
10
11
6
13
X51
X20
X40 X51
X30
X2
X21
X41
X22
X14
L
N
–
+
24V=
RT BUS
Burner
off
RT
230Vac
X1
FUS
X106
X32
X90
X12
X35
X21
L
N
RT 230Vac
N
L
X1
1
3
4
1
3
1
2
3
eBUS
Burner off
X106
M
5
4
2
1
2
1
2
1
N
L
L
24V
230V~
24V
230V~
X12
L
N
2
7
8
10
9
1
4
3
5
6
12
11
1 Main PCB
2 Interface PCB
3 Control system
4 Temperature sensor on the heating flow
5 Temperature sensor on the heating return
6 Fan
7 Gas valve assembly
8 Pressure sensor
9 Ionisation electrode
10 Heating pump
11 Ignition electrode
12 Main power supply and connection for 230 V control