132
Internal extensions (accessories)
Internal H1 extension
Fig. 76
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 parameter "53" in the
"General"
group:
■
Central fault message (parameter "53:0")
■
DHW circulation pump (parameter "53:1") (only for
weather-compensated operation)
Connect DHW circulation pumps with standalone
functions directly to the 230 V
∼
supply.
■
Heating circuit pump for heating circuit without mixer
(parameter "53:2")
■
Circulation pump for cylinder heating (parameter
"53:3")
An external safety valve can be connected to connec-
tion
gD
.
Function description
Internal extensions
5789 302 GB
Functions
Содержание B2TB
Страница 6: ...6 15 Keyword index 152 Index Index cont 5789 302 GB ...
Страница 12: ...12 1 4 2x 3 2 5 Fig 5 Installing the boiler Removing the front panels 5789 302 GB Installation ...
Страница 26: ...26 2 2x 4 1 5 3 Fig 19 Installing the boiler Fitting the front panels 5789 302 GB Installation ...
Страница 117: ...117 Parts lists Hydraulics 5789 302 GB Components ...
Страница 128: ...128 0008 0009 0004 0005 0006 0003 0002 0001 0007 Fig 75 Parts lists Miscellaneous 5789 302 GB Components ...
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