R449A 制冷剂由四种成分混合而成：R32、R125、R1234yf 和 R134a。 它属于氢氟烯烃 (HFO) 类别，是氢氟碳化合物 (HFC) 的环保替代品，具有较高的全球变暖潜值 (GWP) 和臭氧消耗潜值 (ODP)。 R449A 的 ODP 为零，GWP 低至 1397，比中低温制冷应用中常用制冷剂 R404A 和 R507 低 64%。
R449A 旨在取代新的和现有的制冷系统中的 R404A 和 R507，例如超市展示柜、冷藏室、制冰机、运输制冷和工业制冷。 它具有与 R404A 和 R507 相似的性能和容量，但具有更高的能源效率和更低的环境影响。 R449A 与 R404A 和 R507 系统中常用的多元醇酯 (POE) 油兼容。 它也是不易燃的，安全等级为 A11255。
R449A 以不同的商品名销售，例如科慕 (Chemours) 的 Opteon™ XP40、霍尼韦尔 (Honeywell) 的 Solstice® N40 和阿科玛 (Arkema) 的 Forane® 449A。 它可从世界各地的各个经销商和批发商处购买。 R449A 必须从液相中加入，以确保成分准确并避免分馏。 在处理和使用 R449A 制冷剂时，遵循制造商的说明和安全预防措施也很重要。
R449A refrigerant is a blend of four components: R32, R125, R1234yf and R134a. It belongs to the class of hydrofluoroolefins (HFOs), which are environmentally friendly alternatives to hydrofluorocarbons (HFCs) that have high global warming potential (GWP) and ozone depletion potential (ODP). R449A has zero ODP and a low GWP of 1397, which is 64% lower than R404A and R507, the common refrigerants used in low and medium temperature refrigeration applications12345.
R449A is designed to replace R404A and R507 in new and existing refrigeration systems, such as supermarket display cases, cold rooms, ice machines, transport refrigeration, and industrial refrigeration. It has similar performance and capacity to R404A and R507, but with improved energy efficiency and lower environmental impact. R449A is compatible with polyolester (POE) oils, which are commonly used in R404A and R507 systems. It is also non-flammable and has a safety classification of A112345.
R449A is marketed under different trade names, such as Opteon™ XP40 by Chemours6, Solstice® N40 by Honeywell, and Forane® 449A by Arkema. It is available from various distributors and wholesalers around the world. R449A must be charged from the liquid phase to ensure accurate composition and avoid fractionation. It is also important to follow the manufacturer’s instructions and safety precautions when handling and using R449A refrigerant
