105
Internal H2 extension
Fig. 53
The internal extension is integrated into the control unit
enclosure. The following alternative functions can be
connected to relay output
sK
. The function is assigned
via coding address "53" in the
"General"
group:
■
Central fault message (code "53:0")
■
DHW circulation pump (code "53:1") (only for
weather-compensated operation)
Connect DHW circulation pumps with standalone
functions directly to the 230 V
∼
supply.
An extractor fan can be switched off via connection
aBJ
when the burner starts.
lH
Power supply for accessories and Vitotrol 100
Function description
Internal extensions
(cont.)
5792 925 GB
Functions
Содержание Vitocrossal 100 CI1
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