ST-707 Rotations Control
Example
Monday - Friday
preset: 3
00
, temp. -10
0
C (temperature change – 10
0
C)
preset: 4
00
, temp. -10
0
C (temperature change – 10
0
C)
preset: 5
00
, temp. -10
0
C (temperature change – 10
0
C)
Saturday - Sunday
preset: 16
00
, temp. 5
0
C (temperature 5
0
C)
preset: 17
00
, temp. 5
0
C (temperature 5
0
C)
preset: 18
00
, temp. 5
0
C (temperature 5
0
C)
In this case, if the preset boiler temperature is 60ºC, the temperature will drop
10ºC to 50ºC between 3 a.m. and 6 a.m. on each day from Monday to Friday.
However, the temperature will rise 5ºC to 65ºC during weekend (Saturday,
Sunday) between 4 p.m. and 7 p.m.
Step #3:
The user enables one of two preset modes (
Mode1, Mode2
) or disables the
weekly control option.
Once the mode is enabled the value of the deviation currently set is displayed
on the main page of the controller next to the preset central heating system
temperature. This, additionally, indicates that the weekly control is active.
Data deletion function is a simple method to remove all previously
saved weekly programme settings to enter new settings.
II.10. Fuel granulation
This option allows to choose the main fuel granulation, with which the
boiler is fired .
II.11. Installer's menu
The functions in the installer's menu should be set by the person
installing the boiler or by the manufacturer's service.
II.12.a) Fan coefficient
This function is used to control the fan power. The control is based on shifting
the fan performance curve up or down. If the blowing rate in the whole control
range is too low/high, the coefficient should be increased/decreased accordingly
to ensure proper efficiency of the fan operation.
Malfunctioning of the blowing system is most frequently caused by relatively
large differences between voltages supplied to individual units, which has a
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