What type of refrigerant is R502?
An R-502 Replacement for Limited Condensing Capacity Systems Freon™ 408A (R-408A) refrigerant is a hydrochlorofluorocarbon (HCFC) option designed to replace the hydrofluorocarbon (HFC) refrigerant R-502.
What is the blend of R502 refrigerant?
R-502 is actually an azeotropic refrigerant blend of HCFC-22 and CFC-115. In most applications, a refrigerant must be practically non-flammable and of low toxicity, and must exhibit good thermodynamic properties.
Is R502 refrigerant still available?
U.S. production stopped December 31, 1995. An azeotropic mixture used in low-and medium-temperature refrigeration applications.
Is r502 still available?
Since the phase-out of R-502 in 1995, service quantities are still available through recovery and reclaim operations.
What Suva replacement refrigerant is recommended for retrofitting r502 systems?
Suva® MP66 (R-401B) is available for R-12 systems operating at low evaporator temperatures below –15°F (–26°C) where higher capacity is needed, such as some domestic and commercial freezers and some transport refrigeration equip- ment. MP66 is also the recommended replace- ment for existing R-500 systems.
When was R502 banned?
R502 is currently the most commonly used refrigerant in commercial cold storage; it is due to be banned worldwide by January 1st, 1996, according to the Copenhagen amendment of the Montreal Protocol, and by January I st, 1995 within the European Union according to a 1992 EEC Regulation.
When was R502 made?
R22 was used in low-temperature refrigerating systems. In 1952 there was derived R502 refrigerant substituting R22 in low-temperature refrigerating facilities, which allowed reducing discharge temperature characteristic for R22 in compressors.
What type of refrigerant is R290?
Propane
R290 (Propane) is refrigerant grade propane, used as an alternative to R22 and R502 in low, medium and high temperature refrigeration and air conditioning applications.
What is Suva refrigerant?
Suva® 404A is a ternary blend of HFC-125, HFC-143a, and HFC-134a that has been developed as a long-term re- placement for R-502 and some R-22 refrigeration applications in high-, medium-, and low-temperature ranges. Suva® 404A (HP62) can also be used to retrofit existing R-502 equipment.
What oil goes with R502?
In refrigerating units charged with R502 a mineral or alkylbenzene oil is usually adopted; these lubricants have only partial miscibility in R502. Identifying alternative refrigerants with mineral or alkylbenzene lubricants having comparable miscibility can greatly simplify conversion of the refrigerating units.
Which refrigerant is better R134a or R290?
Compared to R22 and R134a, R290 results in a 40% reduction in refrigerant charge. R600a results in a 45% reduction in charge compared to R134a, and a 60% reduction compared to R12.