due to its harmful effects on the ozone layer and climate change. The U.S. Environmental Protection Agency (EPA) banned the production and import of R-22 on January 1, 2020. However, you can still use R-22 in your air conditioner or heat pump system if you have it. After 2020, the only R-22 available will be recovered, recycled, or reclaimed supplies, and servicing systems that use R-22 may become more expensive.
Freon™ MO29 (R-422D) refrigerant is a low-toxicity, non-ozone depleting hydrofluorocarbon (HFC) replacement for R-22.
Compatible with traditional and new lubricants, including mineral (MO), alkylbenzene (AB), and polyolester (POE) oils, most systems retrofitting to Freon™ MO29 don't require changing the current lubricant.
This multi-purpose refrigerant works in existing medium- and low-temperature direct expansion (DX) refrigeration applications, including commercial supermarket systems. Freon™ MO29 also appropriate for stationary DX air conditioning applications, including DX water chillers.