Help CenterVELUX ACTIVE provides two main algorithms for the automatic control of an indoor climate. The two algorithms are:
1) A ventilation algorithm that automatically controls the VELUX skylights to regulate room temperature, humidity and carbon dioxide (CO2). The ventilation algorithm relies on indoor measurements made by the sensor and weather forecasts retrieved from the Internet. By using this information, the VELUX ACTIVE algorithm can decide whether ventilating the room will improve the indoor climate or whether the skylight should remain closed because the indoor climate cannot be improved.
To ensure a constant supply of fresh air, the algorithm also has an air recycling function that ventilates the room on a regular basis (every 1-6 hours) for a period of 5-15 minutes, depending on indoor and outdoor conditions.
2) A blind algorithm is designed to prevent potential overheating by closing the skylight shades to block out the sun when appropriate. The blind algorithm also relies on weather forecast information to make smart decisions based on indoor and outdoor conditions.