0020193968_05 ecoTEC exclusive Installation and maintenance instructions
59
H
Wiring diagrams
H.1
Wiring diagram 12 - 35 kW
X18
X51
X20
X1
X13
24V
230V~
24V
230V~
X41
X25
6
5
4
3
2
1
X21
6
5
4
3
16
1
12
4
X2
13
11
14
3
1
4
10
15
13
2
1
3
6
3
2
3
2
4
1
2
3
L
N
L
N
X16
L
N
1
2
3
1
2
3
19
1
20
8
17
7
18
6
4
3
1
M
16
4
3
17
5
7
8
5
4
2
1
Masse
PWM
Hallsignal
+24V
11
15
Burner Of
f
B
US
R
T
24V
X100
4
2
10
11
2
3
1
5
8
1
6
8
3
5
1
2
4
1
2
3
5
6
7
8
X30
X40 X51
X35
X31
X22
X90
2
1
T2
Fuse
X12
X25
X21
X2
Opt
X16
Fa
n
X11
TL Pump
X13
X18
CH P
ump
X24
X20
X1
X41
–
+
24V=
RT
B
U
S
Burner
of
f
X100
5
X51
L
RT
N
*
2
1
9
19
19
22
21
4
3
18
16
13
14
12
11
10
7
15
6
8
23
17
20
X24
17
3
