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Vitocrossal 300 CU3A 26 to 199 Service
5673 649 - 18
98
Internal Extensions EA1
Legend
DE1
Digital input 1
DE2
Digital input 2
DE3
Digital input 3
0 – 10V
0 - 10V input
fÖ
Power supply
fÖ
A
A Power supply for additional
accessories
aBJ
Central fault message/
feed
pump/DHW
recirculation
pump
(potential-free)
aVG
KM BUS
Function Description
Refer to main wiring diagram on page 101.