1. Starting point
Our automotive client was launching a new production line requiring a precisely controlled working environment. The process demanded: full control of particulate contamination, stable temperature and humidity, room overpressure of minimum 15 Pa, ISO 7 cleanliness (Cleanroom class 10,000), and 24/7 continuity under variable production loads.
The zone covered approximately 400 m², divided into several functional rooms with different airflow and pressure requirements.
2. Key engineering challenges
Audits and analyses showed that success would depend on: designing an air system with a very large airflow (above 100,000 m³/h) while keeping the pressure balance; using absorption dehumidifiers to hold the humidity parameter regardless of weather; providing cooling capacity with genuine reserve; and achieving class-compliant filtration with a workable service regime.
3. The delivered system
Air handling and dehumidification
The system delivers a total airflow above 100,000 m³/h, with absorption dehumidifiers rated 18,000 m³/h holding stable humidity independent of outdoor conditions — critical for PVB film processing.
An 800 kW chilled water plant
The cooling system provides stable medium temperature under all conditions, capacity for high loads, a power reserve for future line expansion, and high energy efficiency in round-the-clock operation. It is equipped with an emergency by-pass, flow and temperature protections, and dedicated circuits for the air handling units and the process.
Filtration and class 10,000 cleanliness
With final H14 filtration, correct airflow distribution and room overpressures, the zone achieves stable ISO 7 cleanliness to the client’s requirements.
4. Key technical data
- Zone area: approx. 400 m²
- Cleanliness class: Cleanroom 10,000 / ISO 7
- Total airflow: above 100,000 m³/h
- Absorption dehumidifiers: 18,000 m³/h
- Chilled water plant: 800 kW
- Final filtration: H14
- Overpressure regime: per EN ISO 14644
5. The outcome
The result is a stable class 10,000 production environment meeting strict automotive requirements. The system holds its parameters 24/7, and its capacity reserves allow production to scale in the coming years. The project demonstrates that properly engineered HVAC directly affects product quality, line throughput and operating costs.
6. Planning a similar investment?
If your plant is planning a new cleanroom zone, a retrofit of existing infrastructure, or stabilisation of air parameters for automotive, battery, pharma or electronics processes — we deliver such projects end to end. See our turnkey cleanroom construction page or call +48 32 450 56 66.