Regulus 18239, Инструкция по эксплуатации

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OTC curves settings
The purpose of weather compensating control is to reduce the heating water temperature when
the outdoor temperature rises (and vice versa). This can effectively reduce overheating or
underheating of dwelling space and also increase the efficiency of system operation. From the
point of view of energy savings and thermal comfort in living rooms, it is more advantageous
to heat the building to the required room temperature with a lower heating water temperature
for a longer time than with a higher heating water temperature for a shorter time.
The basic parameters of the OTC curve, the maximum and minimum temperatures for the
zone are set by the service technician during commissioning at the service level.
It can be clearly seen in the graph below that weather compensating control does not represent
a direct relationship between the outdoor temperature and the heating water temperature, so
its expression is not a straight line.
This model example shows a system with convection radiators with a temperature gradient of
55/50°C. The outdoor design temperature is -15°C, the indoor design temperature is 20°C and
the desired indoor temperature is 22°C.
Every building is different and the correct setting is determined by heat loss, weather conditions
or altitude. However, the final settings can only be made during normal use of the building.
In the basic mode of the OTC curve setting display, only the current outdoor temperature and
the current desired heating water temperature are displayed. The desired temperature can be
changed with the plus and minus buttons.