83
Heating program changeover
Coding
No heating program changeover
F2:0
Duration of the heating program changeover 1 to 12 hours
F2:1 to
F2:12
The heating program changeover stays
enabled for as long as the contact
remains closed, but at least as long as
the duration selected in coding address
"F2".
External blocking
The "External blocking" function is con-
nected via external extension input
"
aVD
".
In coding address "32" you can select the
influence the "Ext. blocking" signal
should have on the connected circulation
pumps.
External demand
The "External demand" function is con-
nected via external extension input
"
aVD
".
In coding address "34" you can select the
influence the "Ext. demand" signal
should have on the connected circulation
pumps.
The minimum set boiler water tempera-
ture in case of external demand is selec-
ted in coding address "9b".
Venting program
During the venting program, the circula-
tion pump will be alternately switched
ON and OFF for 30 s respectively over a
period of 20 min.
For a certain period, the diverter valve is
alternately set towards heating and
DHW heating. The burner is switched
OFF during the venting program.
The venting program is activated via
code "2F:1". The program is automati-
cally disabled after 20 min, and coding
address "2F" is set to "0".
Function description
Control functions
(cont.)
5692 799 GB
Summary of Contents for VITOLADENS 300-W
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