E Connection Diagram - Vaillant ecoTEC plus VU GB 656/4-5 A Installation And Maintenance Instructions Manual

E Connection diagram
brown
14
black
black
10
orange
4
violet
2
5
black
9
red
11
green
12
red
X2
green
13
black
1
blue
17
black
3
grey
4
red
16
red
5
black
7
blue
8
black
12
black
13
black
14
X20
black
6
black
10
blue
18
red
9
15
2
Ignition unit
X14
0020214491_01 ecoTEC plus Installation and maintenance instructions
natural
Coding resistance
1210 
green/yellow
Cylinder thermostat (accessory)
"C1/C2"
1
P
Water pressure sensor
2
4
+
signal
Flow sensor
-
1 Earth
2 Hall signal
3
4 PWM signal
5 + 24 V
black
Flow Switch
Gas valve
Appendix
X11
Cylinder sensor
Fan
Flow sensor
Return sensor
Ignition electrode
Appliance earth
37