How is the high pressure of CO₂ managed?

The high pressure in CO₂ systems (up to 130 bar) enables higher capacity and greater efficiency. All components – including compressors, heat exchangers, valves, piping and receivers – are specifically designed to withstand high pressures.

Furthermore, the system always includes pressure-relief valves to protect the system during power failure.

The high pressure is primarily regulated by an electronic high-pressure valve. In the event of a valve malfunction, the system is protected by three sequential safety steps:

• Step 1: Controller Shutdown - The system controller detects the high pressure and automatically shuts down the compressors.
• Step 2: Pressure Switch Intervention - A mechanical high-pressure safety switch cuts power to the compressors if the controller fails.
• Step 3: Safety Valve Relief - As a final mechanical barrier, the safety valve pops and safely vents the excess CO₂ to the outside.