F Wiring Diagram - Vaillant VU 246/6-5 OVZ (P-GB) ecoTEC plus 424 P Installation And Maintenance Instructions Manual

F Wiring diagram
2
1
X40 X51 X32
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
0020239015_05 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
9
L
X21
N
RT
10
L
L
X1
N
N
11
X12
7 Gas valve assembly
8 Heating pump
9 Monitoring electrode
10 Room thermostat
11 Main power supply and connection for 230 V control
12 Ignition electrode
Appendix
4
5
6
1
M
2
3
4
5
1
7
24V
230V~
8
12
35