Viessmann Vitotwin 300-W Installation And Service Instructions For Contractors page 12

Preparing for installation
Preparing for installation
Electrical installation scheme
2
Vitotwin
X100
N N
PE
L
L
N 3
PE
QX1 2
S
L
X200
L 2 4
PE 3
QX2
N
2
L 1
Z
L 2 4
PE 3
QX4
N 2
L 1
F
L 2 4
PE 3
QX3
N 2
L 1 M
4
EX2
3
2
EX1
J
X301
k
ATS
2
x
B4
2
3
B41
4
X300
h
B3
2
3
H5
2
B10
B42
n
2
3
b
2
b
BSB
2
X207
3
2
1
WIRELESS
3
2
1
12
(cont.)
230 V/50 Hz
VC 100
S
6
6 18 Junction box
2 B
X1
Low voltage
6
Junction box
2 B
Low voltage
2
B3
1
2
B4
1
70
2
B41
1
71
2
B10
1
B42
2
ATS
1
6
WIRELESS
2
BSB
1
18
X1
STS B3
PTSO B4
PTSU B41
PTSU B10/42
ATS
DM
FBE
41 51
6
X301
6
X300 Control unit
6
X207
5
6
7
8
4
3 B
3 A
61
2