Freon™ 409A (R-409A) Refrigerant

An HCFC Replacement Refrigerant for R-12

As various global regulations drive the gradual phaseout of certain refrigerants, the Freon™ brand continues to develop alternative refrigerant options, including Freon™ 409A (R-409A) refrigerant.

Freon™ 409A carries an ASHRAE A1 safety classification and blends R-22, R-142b, and R-124. It can be used in medium- and low-temperature positive displacement equipment.

Used as a retrofit for R-12 in stationary positive displacement air-conditioning (AC) and refrigeration systems, Freon™ 409A works in:

  • Walk-in coolers
  • Beverage dispensers
  • Vending machines
  • Supermarket refrigeration systems

Original equipment manufacturers (OEMs) recommend using either mineral oil (MO) or alkylbenzene (AB) oil when replacing R-12 with Freon™ 409A. Many applications don't require oil replacement; consult your OEM to find out when AB oil must be used.

Features and Benefits

Freon™ 409A is a nonflammable hydrochlorofluorocarbon (HCFC) based refrigerant. It works with existing MO in many unitary and close-coupled systems, and requires 10-25% less refrigerant after retrofit. One compressor oil change to AB typically removes 50-80% of the existing MO to satisfy compressor OEM recommendations and requirements.

Regulations for the long-term use of refrigerants vary by region and application, and may change over time. For the latest information, visit the Regulations page.

If you're looking for a low global warming potential (GWP) alternative, consider Chemours’ portfolio of Opteon™ refrigerants.