Flexit ProNordic S240R is a high-performance air handling unit with a rotary heat exchanger, designed for commercial buildings and demanding projects in Nordic climatic conditions. With a maximum airflow of up to 3 100 m³/h it covers ventilation for large office buildings, schools, hospitals, shopping centres, fitness centres and apartment buildings. The unit is energy-efficient thanks to EC fans and quiet for the comfort of building occupants. The Siemens Climatix CS2500 control system with Modbus TCP/IP or RTU communication ensures easy integration into building management systems (BMS). Supplied as a right-hand variant with standard 400 V configuration — easily converted to left-hand and 230 V directly on site. Configuration flexibility eliminates the risk of ordering the wrong variant and saves costs when project changes occur.
Key Benefits
Performance Parameters
Flexit ProNordic S240R delivers an airflow of up to 3 100 m³/h. The top rectangular duct connection minimises pressure losses and simplifies ductwork routing in the plant room.
supply and extract
(compact for plant rooms)
Siemens Climatix CS2500 control system
Integrated control system with constant airflow or 3-speed regulation. Modbus TCP/IP or RTU communication for connection to building management systems (BMS). ProPanel (push-button, art. 112672) or ProTouch (touch-screen, art. 118257) control panel available as an accessory. Time programmes and filter alarm based on pressure differential.
Flexible design — impossible to order wrong
Supplied as a right-hand variant with 400 V configuration. Conversion to left-hand and 230 V is done directly on site. Electric heating coil (art. 118528) or water heating coil (art. 112881) is installed on site as an accessory. This flexibility eliminates the risk of ordering the wrong variant.
Large commercial buildings — schools, hospitals, apartment buildings
With an airflow of up to 3 100 m³/h, the ProNordic S240R is ideal for large commercial buildings — schools, hospitals, shopping centres, fitness facilities, larger apartment buildings and office complexes. A single unit ensures quality air even for large spaces with high hygiene requirements.
Robust construction for technical rooms
Double-walled panels with a thickness of 50 mm without thermal bridges ensure excellent thermal insulation. Thoughtful construction facilitates installation, servicing and component replacement. ePM1 55 % (F7) filtration on both supply and extract air captures fine dust and pollen and protects internal components.
Installation and transport
ProNordic S240R is designed for efficient installation in a technical room. All air connections are located on the top of the unit (rectangular duct connection), which simplifies ductwork routing.
The unit can be disassembled into individual modules — rotor module, fans and doors — reducing the weight during transport to the plant room. Compact dimensions allow the unit to be carried through a standard doorway.
Automatic bypass provides free cooling during transitional periods. Filter alarm based on pressure differential alerts when filter replacement is needed.
ProNordic is primarily installed indoors — in a technical room, AHU plant room or ceiling void within the building, protected from weather and frost.
ProPanel and ProTouch — two control options
ProPanel is a standard push-button control panel for basic operation and unit status overview. Suitable where simple control without advanced settings is sufficient.
ProTouch is a touch-screen panel with an application for local connection to the unit. It offers extended settings, visualisation of operating parameters and alarm history. Both panels are supplied separately as accessories.
Modbus TCP/IP or RTU communication enables integration into building management systems (BMS/SCADA). Siemens Climatix CS2500 supports configurable time programmes and remote diagnostics.
Technical Specifications
| Parameter | Value |
|---|---|
| Max. airflow | 3 100 m³/h (861 l/s) |
| Heat exchanger type | Rotary (regenerative) |
| Fan type | B-wheel radial with EC motors |
| Electric heating coil (optional) | Accessory — on-site installation (art. 118528) |
| Water heating coil | Accessory — on-site installation (art. S32R, 112881) |
| Rated voltage | 400 V standard / 230 V (convertible on site) |
| Duct connection | Rectangular, top-mounted |
| Filters | ePM1 55 % (F7), supply and extract (filter set art. 112575) |
| Control system | Siemens Climatix CS2500 |
| Communication | Modbus TCP/IP or RTU |
| Gross weight | ~405 kg |
| Configuration | Right-hand (convertible to left-hand on site) |
| Installation | Floor-mounted, indoor installation |
| Control panels | ProPanel (push-button, art. 112672) / ProTouch (touch-screen, art. 118257) |
| Certifications | Nordic Swan Ecolabel eligible (Svanemerket database) |
| Product no. | 172600 |
| GTIN | 7023671726003 |
ProNordic S240R vs S220R vs S260R — which model to choose?
ProNordic S240R with an airflow of up to 3 100 m³/h is designed for large commercial buildings where the capacity of the S220R (2 400 m³/h) is insufficient, but the full power of the S260R (3 900 m³/h) is not required.
For smaller spaces, consider ProNordic S220R (2 400 m³/h), ProNordic S180R (1 800 m³/h) or ProNordic S140R (1 365 m³/h). The full ProNordic range includes 14 models with airflows from 780 to 6 000 m³/h in S (top connection) and L (side connection) variants.
For residential use (family homes and flats), we recommend the Flexit Nordic range.
Reliable commercial ventilation. High performance. Professional control.
Flexit ProNordic S240R is an energy-efficient air handling unit with a rotary heat exchanger, airflow of up to 3 100 m³/h, ePM1 55 % filters and Siemens Climatix CS2500 control — flexible, reliable and ready to ship.