Viessmann Vitoligno 300-P Service Instructions For Contractors page 99

Repairs
(cont.)
Connecting several remote control units
Version 1
B
A
A To the control unit or to the KM BUS
distributor
(in the KM BUS distributor, insert
into terminals 1 and 2)
■ Connect in accordance with the dia-
gram
■ Total length of all KM BUS cables up
to 50 m
Version 2
≤ 15 m
B
≤ 15 m
A
A To the control unit or to the KM BUS
distributor
(in the KM BUS distributor, insert
into terminals 1 and 2)
B
≤ 15 m ≤ 15 m
≤ 15 m
B B
D
C
B
≤ 15 m
C
B Vitotrol
C Socket (on site)
B Vitotrol
C Socket (on site)
D Further BUS subscribers
Troubleshooting
99