Freon™ 39TC (R-423A) Refrigerant

An R-12 Refrigerant Alternative for Centrifugal Chillers

Freon™ 39TC refrigerant is a hydrofluorocarbon (HFC) option with zero ozone depletion potential (ODP) used to retrofit R-12 equipment. Because R-12 is a high-ODP chlorofluorocarbon (CFC) refrigerant, it is being phased out per the Montreal Protocol. Freon™ 39TC is an excellent alternative that offers comparable cooling characteristics, discharge temperature, and performance to R-12 used in centrifugal chillers.

Original equipment manufacturers (OEM) have mandated changing lubricants to a polyolester (POE) oil for most system retrofits. Because Freon™ 39TC tolerates high residual levels of mineral oil in POE, systems don't require flushing after switching lubricants.

Features and Benefits

Freon™ 39TC offers a number of benefits when used in centrifugal chillers.

This nonflammable refrigerant:

  • Carries an ASHRAE A1 safety classification
  • Avoids expensive engineering changes 
  • Extends the life of existing chiller equipment
  • Requires less investment because current refrigerant does not need to be removed and equipment can be topped off/recharged with Freon™ 39TC during service

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

If you're looking for a low GWP alternative, consider the portfolio of Opteon™ refrigerants by Chemours.