Similar components to R-402A but contains more R-22 and less R-125. This lowers the discharge pressure closer to R-502, however the discharge temperature increases compared to R-502. This is a benefit in ice machines, where the blend is primarily used, because it improves harvest times. Although propane will improve oil circulation, it is still recommended that some mineral oil be replaced with alkylbenzene.

Part NumberDescription


Download SDS for R-402B.

Download the R-402B product information
from the NRI Refrigerant Reference Guide