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In coding address "34" you can select
the influence the "Ext. demand" signal
should have on the connected circula-
tion pumps.
The minimum set boiler water tem-
perature in case of external demand
is selected in coding address "9b".
Screed drying function
The screed function enables screeds
to be dried. For this, always observe
the details specified by the screed
manufacturer.
When the screed drying function is
activated, the heating circuit pump of
the mixer circuit is switched ON and
the flow temperature will be held at
the selected profile. After completion
(30 days), the mixer circuit will again
be regulated automatically via the set
parameters.
Observe EN 1264. The report to be
provided by the heating contractor
must contain the following heat-up
details:
&
Heat-up data with respective flow
temperatures
&
Max. flow temperature achieved
&
Operating condition and outside
temperature during handover
The various temperature profiles are
adjustable via coding address "F1".
The function continues after power
failure or after the control unit has
been switched OFF. "Heating and
DHW" will be started after the screed
drying function has been terminated
or if code "F1:0" is manually adjusted.
Temperature profile 1: (EN 1264-4) code "F1:1"
Control functions
(cont.)
82
Function description
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Summary of Contents for VC3
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