
150
EA1 extension
A1
PCB
F1
MCB/fuse
DE1
Digital input 1
DE2
Digital input 2
DE3
Digital input 3
0 – 10 V 0 – 10 V input
fÖ
Power supply
fÖ
A
Power supply for additional
accessories
aBJ
Central fault message/feed
pump/DHW circulation pump
(potential-free)
aVG
KM BUS
Function description
External extensions (accessories)
(cont.)
5585 174 GB