Heating Menu / 1.3 - Equithermal Regulation
Equithermal regulation is a function that sets the temperature of the heating water according to the outdoor temperature. The lower the outdoor temperature, the higher the heating water temperature that the regulator will set according to the specified parameters.
- determines the water temperature on the equithermal curve at an outdoor air temperature of -10°C. - determines the water temperature on the equithermal curve at an outdoor air temperature of +10°C. The system calculates the other water temperatures for the current outdoor temperature from these values. The shape of the equithermal curve is displayed when the button is pressed. shifts the set curve upward or downward according to the chosen temperature. - in order to prevent frequent and sudden changes in the water temperature due to abrupt outdoor temperature fluctuations, the system averages the outdoor temperature over an adjustable time period. The memory always stores 24 outdoor temperature values. With averaging set to 24h, a new temperature is stored every hour. With 6h averaging, it is every 15 minutes, etc. The memory with the stored temperatures is cleared upon a MiniHPC restart and then gradually refilled with new values. - Purely outdoor temperature-controlled equithermal regulation is not always perfect and may result in overheating or underheating, for example, depending on solar gains through the windows, the behavior of the building's occupants, etc. If MiniHPC has access to the room temperature T1, it can adjust the equithermal curve according to that temperature.The adjustment works in such a way that if the room temperature is higher than the set in the menu 1.2 Control temperature by, MiniHPC will set a lower heating water temperature. Conversely, if the room temperature drops below that value, MiniHPC will set a higher heating water temperature.
The range of temperature adjustment depends on the setting of this offset. By default, the value is set to 0.0x°C, meaning no adjustment of the water temperature according to the room temperature T1 takes place.
If this value is set, for example, to 1.0x°C, the system will react to a 1°C drop in room temperature by increasing the water temperature by 1°C. If the room temperature drops from 25°C to 23°C, the system will increase the water temperature by 2°C.
The default water temperatures of the heating curve may not suit every building, as each building has different heat losses and gains. Therefore, it is advisable to monitor how the indoor temperature varies with different outdoor temperatures and gradually adjust the curve values to match the building's actual thermal losses so that the indoor temperature remains as stable as possible.