107
EA1 extension
Fig. 55
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 circu-
lation pump (potential-free)
aVG
KM-BUS
Digital data inputs DE1 to DE3
The following functions can alternatively be connected:
■
External operating program changeover for one
heating circuit each
■
External blocking
■
External blocking with fault message input
■
External demand with minimum boiler water temper-
ature
■
Fault message input
■
Brief operation of the DHW circulation pump
The hooked-up contacts must correspond to safety
category II.
Function description
External extension (accessories)
(cont.)
5792 925 GB
Functions
Summary of Contents for Vitocrossal 100 CI1
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