Viessmann C3HA, Installation And Service Instructions For Contractors

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29
Electrical installation scheme
2
L
N
4
Vitotwin
230 V/50 Hz
L 1
N
PE
PE
L
N
N
PE
L
L 2
X100
3
2
F
X200
X301
k
2
x
2
3
4
X300
h
2
3
H5
2
n
2
3
b
2
b
2
1
3
2
1
3
2
X207
DM
3 A
S
2
3
3 B
FBE
BSB
B3
B4
B41
WIRELESS
1
2
1
2
1
2
1
2
1
2
B42
B10
ATS
1
2
X1
ATS 4
6 PTSO B4
PTSU B41 7
STS B3 5
PTSU B10/42 8
Control unit
2
18
6
2 B
Junction box
Low voltage
X301
X207
X300
6
6
6
QX1
PE
L 1
N
QX2
4
3
2
Z
L 2
QX4
4
3
2
M
4
3
2
J
EX2
EX1
B4
ATS
B41
B3
B42
B10
BSB
WIRELESS
X1
Junction box
Low voltage
2 B
X301
X207
X300
18
6
6
6
L 1
N
PE
L 2
QX3
61 41 51
9 UV
2 A 230 V extension
31
3
2
1
1
2
3
4
1
2
1
2
3
1
2
3
1
2
3
1
2
Control unit
2
7
QX1
QX4
QX2
2
1
1
PE
L
N
L 2
PE
L 1
N
EX2
EX1
QX1
QX4
QX2
EX2
EX1
40
X5
X4
X3
X10
SD1 / R1L
230 V/50 Hz
1
2
3
4
1
2
3
4
L 2
PE
L 1
N
L 2
PE
L 1
N
EX
3
VC 100
71
70
S
31 SD1 / R1N
QX2
QX4
QX1
EX
230 V extension 2 A
7
X10
3
1
1
2
M
1~
Preparing for installation
Preparing for installation
(cont.)
5618 294 GB
Installation