F Connection Diagram - Vaillant ecoTEC plus Installation And Maintenance Instructions Manual

F Connection diagram
2
1
X40 X51 X32
1 Main PCB
2 Interface PCB
3 Control system
4 Temperature sensor in the heating flow
5 Temperature sensor in the heating return
6 Fan
0020200871_00 ecoTEC plus Installation and maintenance instructions
X51
X51
X51
X35
– +
Burner 24V=
off RT BUS
X20
X30
X21
L
N
X12
RT
Burner off
X106
3
eBUS
13
6
X20
5
4
15
3
16
1
9
L
X14
N
8
L
X21
N
RT
9
L
L
X1
N
N
10
X12
7 Gas valve
8 Monitoring electrode
9 Room thermostat
10 Main power supply
11 Ignition electrode
Appendix
4
5
6
1
M
2
3
4
5
1
7
24V
230V~
11
31