Vaillant ecoTEC plus VUI Series User Manual

0020308121_04 Installation and maintenance instructions 89
3 2 1
NL
6
1
4
3
2
5
3
2
1
4
6
5
4
3
2
1
4
1
a
b
2
3
3
1
4
6
M
3
1
4
3
1
5
4
2
3
1
GND
PWM
RPM
+24V
6
5
4
3
2
1
4
2
3
X51
X40 X51 X35
X31
X32
X90
U2
F1
X12a X12b
X1
CH Pump
RT 230 Mains
X19
X25
X21
X23
21
X41X36
X2
X100
Opt
X16
Fan
X11
X24
X20
X26
NL NL
RT
NL
N
L
N
L
3
2
1
1
2
3
4
5
6
6
5
4
3
2
1
1
2
1
4
3
5
2
3
6
1
5
13
11
14
8
17
7
18
9
1
BUS
-
+
24V=
RT
Burner
Off
18
12
10
4
2
8
7
6
17
13
3
15
14
12
11
3
7
9
8
1
2
5
3
1
24V
230V~
X20
X2
X100
X23
X25
X26
X36
X16
X11
X1X12a
X51
X24
X41
X19
X31
4
3
5
7
6
8
9
10
11
12
13
14
23
3
2
1
21
22
17
18
20
19
15
16
1 Main PCB
2 Control panel PCB
3 Shift-load cylinder
4 Gas valve assembly
5 Fan
6 Gas valve assembly for main gas valve
7 Return temperature sensor
8 Flow temperature sensor

Vaillant ecoTEC plus VUI Series Specifications

General

Brand	Vaillant
Model	ecoTEC plus VUI Series
Category	Boiler
Language	English