Vitodens 200-W B2HA 112, 150 Service
85
5683 710 - 09
Function Description
Internal Extensions EA1
Legend
A1
PCB
F1
Fuse
DE1
Digital input 1
DE2
Digital input 2
DE3
Digital input 3
0 – 10 V
0 - 10 V input
fÖ
Power supply
fÖ
Power supply for additional
accessories
aBJ
Central fault message/
feed
pump/DHW
recirculation
pump
(potential-free)
aVG
KM BUS
Refer to main wiring diagram on page 90.