Wiring Diagrams - Vaillant ecoTEC VU 466/4 Installation And Maintenance Instructions Manual

5 Installation

5.8.5 Wiring diagrams

brown
14
black
10
orange
4
violet
2
5
black
9
11
12
X 2
green
13
black
1
blue
17
black
3
grau
4
red
16
red
5
black
7
blue
8
black
12
black
13
X20
black
14
blue
18
red
9
Igniter
X14
Fig. 5.14 Connection diagram of ecoTEC
(continued on next page)
1) You must not use both the C1/C2 and the cylinder sensor connections!
22
red
green
red
green/yellow
Cylinder thermostat (connection)
"C1-C2"
1
P Water pressure sensor
2
4
+
Flow rate sensor
Signal
-
Earth
Hall signal
1
2
PWM signal
3
4
+24V
5
natural
black
Gas valve
+
Ignition electrode
Appliance earth
Installation and maintenance instructions ecoTEC 0020029172_03
X 11
1)
Cylinder
1)
NTC sensor
Fan
Flow temperature sensor
Return temperature sensor