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Programming
Heating curve displacement
(721, 1021,1321)
Heating curve adaption
(726, 1026, 1326)
Summer/winter heating limit
(730, 1030, 1330)
82
Determination of the heating curve slope
Enter lowest calculated outside temperature according to climate zone (e.g. -1°C in
London) into the diagram (see Fig. 14 ) (e.g. vertical line at -1°C). Enter the maxi-
mum flow temperature of the heating circuit, which is reached by calculating with
-1°C outside temperature at 20°C room temperature e.g., horizontal line at 82°C).
The intersecting point gives the value for the heating curve slope.
Fig. 14: Heating curve diagram
° C
100
90
80
70
60
50
40
30
20
10
Correction of the heating curve by parallel shifting in case of generally too high or
too low room temperature.
Automatic adaptation of the heating nominal line to the actual circumstances,
due to which a correction of the heating nominal line gradient becomes obsolete.
For automatic adaptation of the heating curve a room sensor must be connected.
The value for room influence (see prog. no. 750, 1050, 1350) must be set between
1% and 99%. Should there be radiator valves in the leading room (assembly loca-
tion of the room sensor), these have to be fully opened.
As soon as the average of the outside temperatures of the last 24 hours rises 1°C
over the value set here, the heating circuit switches into summer mode. As soon
as the average of the outside temperatures of the last 24 hours drops 1°C below
the value set here, the heating circuit switches back into winter mode.
Condensing gas boiler Eurocondense three125-300 kW
4
3,5
3
2,75
0
-10
-20
Outside temperature
2,5
2,25
2
1,75
1,5
1,25
1
0,76
0,5
0,25
-30
° C
7308536-02 06.13
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