R600a (Iso-Butane) is refrigerant grade Iso-Butane used as a replacement for R12 and R134a. Its low-GWP hydrocarbon (HC) featuring is used in flammable refrigerant (Safety Class A3). It has been used in the operation of home refrigerators since the early 1990s, due to its physical-chemical properties, most suitable for medium/high-temperature applications. It is the refrigerant of choice for domestic and light commercial refrigeration units, including fridges and freezers, drink dispensers and stand alone display units. Because of flammability, the operator needs special training, generally used in the refrigerator industry, rarely used in the air conditioning industry.
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