Hydrofluorocarbon (HFC) R-404A has been used for many years as a long-term refrigerant replacement blend for chlorofluorocarbon (CFC) R-502. R-502 was a binary, azeotropic refrigerant blend of ...
There's a simple rule in the industry that HFC-404A refrigerant needs to be used with POE oil. Yet there are reports of refrigeration systems that had been running on HCFC-22 being converted to R-404A ...
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