REFRIGERANT R408a
interim alternativet to R502
HCFC based refrigerant
low and medium temperature commercial refrigeration
R 408A, an HCFC-based refrigerant, is a retrofit refrigerant option for replacing R-502 in existing low- and medium-temperature commercial refrigeration systems such as supermarket systems. It is an alternative to R402A where lower operating pressures are desired such as in older systems with limited condensing capacity. No oil change is needed in many unitary and close-coupled systems.
Replaces
R-502
Applications
Existing low- and medium-temperature commercial refrigeration equipment in supermarket systems.
Benefits
Works with existing mineral oil (MO) in many unitary and close-coupled systems.
Alkylbenzene (AB) oil is recommended for optimum oil return.
Physical properties:
Component | Chemical name | Molecular formula | Weight% |
HCFC-22 HFC-143a HFC-125 | Chlorodifluoromethane 1,1,1-Trifluoroethane Pentafluoroethane | CHClF2 CH3CF3 CHF2CF3 | 47 46 7 |
Molecular weight Boiling point Critical temperature Critical pressure Odor Form Color Vapor Pressure at 25 Vapor Density at 25 (Air = 1) Ozone Depletion Potential(ODP) Global Warming Potential(GWP) 100yr ASHARE Safety Group Classification Flammability at 1 atm. and 18 | 87.01 -45.5 83.3 4420kPa Slight ethereal Liquefied gas Clear, colorless 1044.6kPa 3.25 0.016 2650 A1/A1 Non-flammable | ||
Lubricant Recommendation
AB or MO
