According to the SHECCO latest & other; Natural refrigerants - throughout the north American market growth &; Guide, North America, has become the natural refrigerant market one of the fastest growing region. Throughout the current ammonia refrigerant application in various fields, as well as many successful cases show that the ammonia has been widely used, has a high recognition of natural refrigerants, its broad development prospects. As industrial refrigeration industry the main refrigerants, refrigeration efficiency of ammonia\'s advantage lies in its highest. SHECCO report, this paper introduces the application and potential of ammonia refrigerants. The wide application of ammonia SHECCO report fully reflects the present situation of the application of natural refrigerants in North America. Food production, storage and sales: food company in Baltimore in northeast of China, mainly provide McDonald\'s burger guy, mainly use ammonia refrigeration in their factory. America\'s largest refrigerated distribution center, covers an area of 78000 square meters, also using ammonia system, cold storage in the United States also use CO2 / ammonia cascade system. Commercial refrigeration: in order to reduce the filling of ammonia, improve system security, many large cold chain in North America are using ammonia/CO2 cascade system. District heating and cooling: in downtown Chicago, installed the world\'s largest district cooling pipe network system. Ammonia water chillers, the ice house, and the water chiller provide air conditioning for the building, so as to reduce power grid peak pressure. Reprint please indicate the source (hvac), building: in order to guarantee the consistency of concrete hardening, so that the development of frozen soil, usually large ammonia refrigeration system. Winter sports: many ice in the United States and Canada use ammonia refrigeration system. In addition, a lot of the Olympic park also USES ammonia refrigeration and ice chute. Commercial and industrial refrigeration industry of ammonia by hvac industry expert feedback in North America in 2012, 51% of people think that at present the market share of more than 50% of ammonia. Ammonia is also expected to their future will continue to become the main industrial refrigeration market refrigerants, although the development of new technology and new refrigerant may affect the status of the ammonia. 84% think that ammonia in the commercial refrigeration and share is very low (0-5%), but 31% of people believe that by 2015, its share would be more than 5%. 48% of people said to ammonia in the commercial market share will be 2020 more than 5%. Ammonia - familiar and common refrigerants SHECCO North America report also points out that of all the consumers, ammonia of awareness and familiarity with the highest, it is widely applied in the north American market will continue to. When asked whether users will adopt what kind of natural refrigerants and when it will use, 67% of people said they are now using ammonia refrigeration. 63% of people think that the current policy environment is very beneficial for ammonia. (article source: hvac online)