SAUTER ecos501
SAUTER ecos501
Intelligent Room Control for Fan Coil Applications
The SAUTER ecos501 sets a new standard for comfort-oriented and energy-efficient room control. Developed specifically for the requirements of the French market, it controls fan coil units (FCUs) and comparable HVAC systems. It combines state-of-the-art control technology with intuitive operation and full connectivity – ideal for buildings of any size. The ecos501 meets the requirements of the French RE2020 regulation, one of the strictest European standards for energy efficiency and climate protection in buildings.
Flexible for Any Application
The ecos501 can be used universally and is suitable for 2-pipe, 2-pipe/2-wire, and 4-pipe systems. It regulates valves, electric heaters, and fan motors precisely and energy-efficiently. Thanks to its versatile inputs and outputs, it can be used in both simple and complex HVAC systems. The controller supports the SAUTER room operating units EY-RU355 and EY-RU365 and can be seamlessly integrated into existing systems.
Optimal Air Quality and Operational Safety
The ecos501 actively contributes to improving indoor air quality. In combination with CO₂ or TVOC sensors, it regulates the fresh air supply according to demand via a 0–10 V output for external air dampers. When the CO₂ level in the room rises, the damper opens automatically until the air quality returns to the optimal range. This ensures a healthy indoor climate at all times.
Furthermore, the ecos501 supports the planning and control of operating times through configurable time programs. These enable automatic switching between occupied and unoccupied periods, further reducing energy consumption.
Future-Proof and Powerful
With a 230 V power supply, DIN rail mounting, four analog and four digital outputs, three universal inputs, as well as integrated Bluetooth and web server, the ecos501 is prepared for all modern building technologies. It integrates seamlessly into the SAUTER system landscape, including modulo 6, ecos504, and SVC.
Its well-thought-out design and robust construction guarantee a long service life and low-maintenance operation. This makes the ecos501 a convincing choice both technically and economically.
Conclusion
The SAUTER ecos501 combines intelligent control, simple operation, and maximum energy efficiency in a compact device. It makes room automation smarter, more connected, and more sustainable – ensuring perfect comfort with minimal energy consumption. With its flexibility and modern communication interfaces, it is the ideal solution for all fan coil applications in forward-thinking buildings.
What does RE2020 mean – and how does the ecos501 meet these requirements?
The Réglementation Environnementale 2020 (RE2020) is France’s environmental and energy regulation for new buildings. It pursues three main objectives:
- Reducing the energy consumption of buildings, particularly through intelligent control and the efficient use of heating and cooling.
- Minimising CO₂ emissions, including through the limitation of fossil energy use.
- Improving thermal and acoustic comfort for occupants – both in summer and in winter.
The SAUTER ecos501 directly contributes to achieving these goals. Its PI control strategy ensures precise temperature regulation, thereby minimising energy losses. Through adaptive fan control, demand-controlled fresh air supply, and an energy limitation function based on outdoor temperature, the ecos501 actively supports the implementation of the RE2020 requirements.
In particular, the integrated energy limitation function fulfils a key requirement of the RE2020:
As soon as the desired room temperature is reached, the operation of the electric reheater is automatically reduced. This prevents unnecessary energy consumption and significantly lowers the annual primary energy demand (Cep,nr) in accordance with RE2020 standards.
