ELEKTROBOCK BT52, Manual

Page: 11 / 20

8 REGUL PASMO
Set temperature
heating on for
100% duty cycle
Proportionality
zone
Work cycle
*Guide value - actual is calculated by the thermostat
Outdoor sensor
temperature (°C)
Required heating system
temperature (°C)
11
8. REGULATION ZONE OF REGULATION
Only when PI control is selected (constant 6 = no equitherm). The so-called The „proporti-
onal band“ indicates when the thermostat starts to limit the UT temperature (when the PI
control starts).
Selectable range
0.5 ° C to 3.0 ° C (0.1 ° C each)
.
By turning the button “ “ set the value and confirm with the button “ “.
(factory setting 2 ° C)
EQUITHERMAL CONTROL SELECTION, CONSTANT NO.6 CURVE „1-60“ SET:
Equithermal control is suitable for large objects where it is not possible to determine the reference room. The principle of
equithermal control is the optimization of the water temperature of the heating system depending on the outdoor temperature.
This dependence is expressed by the stated equithermal curves (for the required room temperature of 20 ° C), according to which we
choose the required water temperature of the heating system. The thermostat calculates the heating water temperature according
to the selected equithermal curve, which it then sends to the boiler. The boiler then regulates the heating water temperature to
the required value. It is necessary to select the steepness of the curve according to the heating system in order to avoid permanent
overheating or underheating of the building. Choosing the right curve for a given system is a long-term matter and it is necessary
to test the system at different outdoor temperatures! The internal temperature in the rooms should be adjusted, for example, by
regulation with thermostatic heads.
The water temperature of the heating system is limited to min. and max. limits, which are set in
constants No. 4 and 5! An outdoor sensor must always be connected to the boiler during this control!
When selecting this control, an outdoor sensor must be installed, which is
part of the boiler
!
If you select the desired room temperature other than 20 ° C, the thermostat calculates the automatic curve shift according
to the following equation, where the coefficient is 1:
shift = (required temperature - 20) * coefficient / 2
... where offset is the offset of the calculated heating system temperature in ° C, the required temperature is the set room
temperature and the coefficient is the value set in constant no.9 (p.12)
Note: the most commonly used curve in our conditions is about 9-11 for low temperature systems and about 15-17 for
classic heating systems.
For a clearer selection of equithermal curves and parameters, we
recommend: https://history.elektrobock.cz/Equitherm