14:53 - AEG Haustechnik
14:53 - AEG Haustechnik
14:53 - AEG Haustechnik
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For the Fitter<br />
2. Special settings<br />
Charging model is not in list or certain parameters must be changed<br />
Changes to the individual parameters are adopted immediately after they are entered. If no button<br />
is pressed for 15 minutes after a change has been made (irrespective of which parameter has been<br />
changed), the display automatically returns to the default display (time and outside temperature<br />
are shown alternately).<br />
Operating principle<br />
The following points are important in understanding the operating principle of the ELFAMATIC<br />
µC 3000:<br />
• The temperature used to calculate the output signal is not the instantaneously measured outside<br />
temperature but an average value derived from the determined instantaneous values with a<br />
trend component.<br />
• During standard operation, the ELFAMATIC µC 3000 functions in autosynchronisation mode,<br />
i.e. the timing element is synchronised with the main release automatically while taking the<br />
current time into consideration. As a result, it is no longer necessary to set the number of hours<br />
since release start (operating time). When put into operation for the first time, the controller<br />
operates in forward control mode until it receives the first LF main release pulse; this ensures<br />
that charging is performed if an additional release is given during this time.<br />
• With charging models where a permanent release is given, e.g. at the weekend (Powertherm), the<br />
ELFAMATIC µC 3000 uses the previous release times to determine the start times for main release<br />
and additional release. If the ELFAMATIC µC 3000 is put into operation on a Friday (so that it is<br />
not possible to store the release times), synchronisation could take until Monday evening. During<br />
this time, the controller operates in forward control mode in order to ensure that charging is<br />
performed.<br />
Interaction of the adjusters<br />
with the ELFAMATIC µC 3000<br />
Factory settings:<br />
Charging model 1<br />
E1 = -<strong>14</strong> °C<br />
E2 = 18 °C<br />
LSO = 15 %<br />
E3 = 7 h<br />
TEP = 20 %<br />
TSP = 85 %<br />
100 %<br />
Charging<br />
level<br />
-20 -15 -10 -5 0 5 10 15 20 25<br />
Example of charging characteristic with 2 °C<br />
outside temperature<br />
100 %<br />
80 80<br />
60 60<br />
Nominal charging level<br />
(heat content)<br />
40 40<br />
20 20<br />
0<br />
E1<br />
Example with outside temperature<br />
LSO<br />
Start point is determined by the<br />
controller on the basis of the<br />
required charging level<br />
-20 -15 -10 -5 0 5 10 15 20 25 2 4 6 8 10 12 <strong>14</strong> 16 18 20 22 24<br />
Outside temperature (°C) Operating time (h)<br />
E2 E3<br />
TSP<br />
UZ<br />
(22 h)<br />
Nominal charging level =<br />
100 % TSP<br />
Full charging<br />
of storage<br />
heater<br />
TEP<br />
100 % TEP<br />
25<br />
English