The environmentally friendly refrigerant propane (R290) with a GWP value of 3 is a sustainable solution for many refrigeration applications. Propane has excellent qualities as a refrigerant and displays very high performance. Based on its classification as an A3 refrigerant, a corresponding safety concept is necessary. Propane is often used in MT, for cold water solutions and for heat pumps. In addition, propane refrigeration systems are also subject to BAFA guidelines for the promotion of refrigeration and air conditioning systems.