Description
R-438A (also marketed as MO99) is a non-ozone-depleting HFC refrigerant blend engineered as a near-drop-in retrofit replacement for R-22 in medium- and high-temperature air conditioning and refrigeration systems. Supplied in a convenient 25 lb. tank, this refrigerant is well-suited for service technicians performing R-22 retrofits without the need for complete system overhauls.
Key Features
- 25 lb. tank — ideal for field service and retrofit work
- R-438A HFC blend formulated as an R-22 retrofit refrigerant
- Suitable for medium- and high-temperature AC and refrigeration applications
- Non-ozone-depleting (ODP = 0) HFC formulation
- Compatible with existing mineral oil and alkylbenzene lubricants in most R-22 systems
- Can be used without complete system oil flush in many retrofit scenarios
- Performs across a wide range of evaporator temperatures
Common Applications
- Residential and light commercial air conditioning systems
- Retrofit of existing R-22 equipment
- Medium-temperature refrigeration systems
- Split systems, package units, and window AC units originally designed for R-22
Important Notes
- For use by EPA Section 608 certified technicians only
- Always follow equipment manufacturer guidelines when performing refrigerant retrofits
- Check local, state, and federal regulations regarding refrigerant handling and disposal
- Verify system compatibility and oil miscibility before use
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