Ammonia has a reputation for being dangerous in the conventional refrigeration industry.
Refrigerant
R717 Ammonia as a Refrigerant
History of Ammonia in the Refrigeration Industry
Ammonia (NH₃ or R717) is the refrigerant that was first used in vapor compression machines around 1870. It has thus been used in large-scale refrigeration and industrial systems for more than 100 years.
Key Data
NH₃ has the lowest TEWI (Total Equivalent Warming Impact = direct greenhouse effect of the
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