
94
Internal extension H1
The internal extension is integrated into
the control unit housing. The following
alternative functions can be connected
to relay output
sK
. The function is allo-
cated via coding address "53":
■ Central fault message (coding
address "53:0")
■ DHW circulation pump (coding
address "53:1") (only for weather-
compensated operation)
■ Heating circuit pump for a heating cir-
cuit without mixer (coding address
"53:2")
■ Circulation pump for cylinder heating
(coding address "53:3")
An external safety valve can be connec-
ted to
gD
.
Function description
Extensions for external connections (accessories)
5692 760 GB
Summary of Contents for VITOCONTROL-S, WB2B
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