Mar 01 2021 Read 1601 Times Stationary refrigeration units, air conditioning units and heat pumps must use non-polluting refrigerant gases, with low global warming potential (GWP), in order to comply with stringent, European F-gas (fluorinated gas) regulations. These low GWP gases can be chosen from either among the natural gases such as carbon dioxide, ammonia and hydrocarbons or among the synthetic refrigerants among which are R1234yf and R1234ze olefins. It is therefore essential to monitor for gas leaks from these systems to ensure the safety of both people and animals and to safeguard the environment. Most major hotel chains are increasingly taking into account the safety of their guests by installing gas leak detection systems both in public and meeting areas and in bedrooms where the air conditioning system and the coolers can be positioned.