Viessmann AWS 104, Installation And Service Instructions For Contractors

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15
Connections for the external unit
C N L
29 4 kW
COM
43 V
> 42 V
2
L1
N
1 / N / PE
230 V/ 50 Hz
COM
29
7 kW
COM
43 V
> 42 V
2
L1
N
1 / N / PE
230 V/ 50 Hz
Li No Lo Ni
29 10 kW / 13 kW
COM
12 V
Low voltage
2
L1
N
1 / N / PE
230 V/ 50 Hz
N L L N C1 C2
Connections for the internal unit
L1
N
2
L1
N
1 / N / PE
230 V/ 50 Hz
L3 L3
3 / PE
400 V/ 50 Hz
L2 L2
L1
L1
PE
Phase symmetrical
L3 L3
3 / N / PE
400 V/ 50 Hz
L2
L2
L1 L1
PE
Phase asymmetrical
N1
N3
N2 N
X40
4
4
L3 L1
1 / N / PE
230 V/ 50 Hz
L2
L1
L1
L1
PE
Phase asymmetrical
N1
N3
N2 N
4
N
N
Preparing for installation
System example 1, ID: 4605169_1005_01
(cont.)
5724 152 GB
Installation