Viessmann BWT 221.A06, Installation And Service Instructions Manual, Page: 14 / 124

14
2
Low voltage
F4
VTS 62
PTS
PT500
PT500
61
F13
1
2
145
145
8
145
145
HK M2
71
1
2 H2
HK A1
91
1
2 H1
145
F0
ATS
Ni500
3
40
145
52
2
1
2
N
L
UP M2
77
73
M
1~
74
76
M2
VTS M2
20
230 V/ 50 Hz
1
2
1 / N / PE
NTC
20
100 W
75
2
L
N
HK M2
KM BUS distributor
1
3
2
1
3
2
1
3
2
1
3
2
L
N
N
M
1~
R
L1
N
1 / N / PE
230 V, 50 Hz
L1
N
PE
R
Mains terminals for compressor
230 V~
V
L3
3 / PE
400 V, 50 Hz
L3
N
L1 L1
L2
L2
PE
V Mains terminals for compressor
400 V~
Preparing for installation
System example, ID: 4605445_1104_01
(cont.)
5601 574 GB