82
Internal H1 extension
Fig. 45
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 external safety valve can be linked to connection
gD
.
lH
Power supply for accessories and Vitotrol 100
Function description
Internal extensions
5839829
Functions
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