Vaillant ecoTEC plus VU Series Installation And Maintenance Instructions

102 Installation and maintenance instructions 0020308118_05
Validity: VUW 30/40CS/1-5 (N-GB) ecoTEC plus 840
X40 X51 X35
X31
X32
X90
U2
X12a X12b
X1
CH Pump
RT 230V Mains
X19
X25
X21
X23
X41
X36
X2
X100
Opt 1
X16
Fan
X11
X24
X27
X20
X26
X51
Opt 2
X13
X20
X2
X100
X23
X26
X36
X16
X11
X1X12a
X51
X41
X19
24V
230V~
NL NL
NL
NL
N
L
3
2
1
1
2
3
4
5
6
6
1
4
3
2
5
3
2
1
4
6
5
4
3
2
1
6
5
4
3
2
1
4
1
a
b
2
3
1
3
5
2
1
3
3
1
4
6
M
3
1
4
2
3
6
1
5
13
11
14
8
17
7
18
9
1
BUS
-
+
24V=
RT
Burner
Off
3
1
5
4
2
3
1
GND
PWM
RPM
+24V
18
12
10
4
2
8
7
6
17
13
3
15
14
N
L
2 1 3
RT
X25
6
5
4
3
2
1
5
4
9
8
7
3
2
1
6
10
12
13
4
3
2
1
5
4
3
2
1
5
4
3
2
1
X27
X24
1
2
5
4
3
2
1
5
4
3
2
1
5
7
6
8
9
10
11
12
13
14
15
16
17
26
2
1
24
20
21
23
22
25
3
4
18
19
1 Printed circuit board
2 Control panel PCB
3 Gas valve assembly
4 Fan
5 Gas valve assembly for main gas valve
6 Return temperature sensor

Vaillant ecoTEC plus VU Series Specifications

General

Type	Condensing Boiler
Installation	Wall-mounted
Heating circuit	Sealed System
ErP Rating	A
Fuel	Natural Gas
Efficiency	Up to 94%
Modulation	1:6
Warranty	2-5 years (depending on model and region)
Dimensions	720 x 440 x 338 mm