Propane CO₂ – Flammable refrigerant. Open fire and smoking are prohibited in the engine room in all circumstances!! – The gas detector must always be used in the engine room when the vacuum to the propane enclosure is broken. – Refrigerant must be added and emptied outside at the filter!!! – Any propane leakage in the engine room must be avoided. – In the event that propane leaks into the engine room, all power to non-Ex equipment must be cut off!!! – Use a CO₂ detector during work in the room. – Refrigerant is added and emptied at the receiver in the engine room. The hose must be placed in the ventilation during emptying. – Warning – CO₂ liquid may form dry ice if the pressure drops quickly (<5.18 bar). – Warning – CO₂ works at very high pressures, which the propane system must maintain below 30 bar. – Warning – very high pressure in all pipes, including suction pipes. Table 5: Rules for servicing propane and CO2 systems – posted on the propane enclosure