Viessmann Vitotronic 200 KW2 Installation And Service Instructions Manual page 72

Components
Remote control
Version 2
C
145
A
A To control unit
B Socket (on site)
C Vitotrol 1
H If several remote control units and
additional KM BUS users are
connected, make the connections
via a socket (on−site) as shown in
the diagram.
72
(cont.)
max. 15 m
max.
D
15 m
E
B
D Vitotrol 2
E Further KM BUS users
H The total length of all KM BUS
cables must be limited to 50 m.