Jun 9, 2022 · R438A is a R-22 replacement Refrigerant. Find out all it's components and all it's characteristics such as the PT chart.

Learn how Freon™ MO99™ (R-438A) can be used as a retrofit refrigerant for R-22. Using Freon™ MO99™ does not require an oil change.

MO99 (R438A) is compatible with mineral oil and POE oil providing a quick, cost-effective R-22 replacement, and can be topped off during service without removing the entire refrigerant charge.

The hydrocarbon component in R-438A will help move mineral oil around most systems that do not have receivers. For any system that has dificulty with oil return, the addition of a few ounces of POE oil will help keep the mineral oil moving back to the compressor.

Replaces R-22 in A/C application Cools as effectively as R-22 in most systems Non-ozone depleting refrigerant for A/C retrofit installations MO & POE compatible Field proven for 10+ years with thousands of successfully retrofits globally

What is Refrigerant R-438A? R-438A, also known as Isceon MO99, is a blend of hydrofluorocarbons (HFCs). It’s a non-ozone depleting substance used to replace R-22 in direct expansion stationary air conditioning and refrigeration systems.

R-438A (MO99): Multiple Application HFC Refrigerant Blend HFC zeotropic blend of R-125 (45%), R-134a (44.2%), R-32 (8.5%), R-600 (1.7%), R-601a (0.6%), that is designed to replace R-22 in direct expansion refrigeration and AC systems. As formulated, it is non-toxic and non-flammable. IUPAC name: ASHRAE Code:

R-438A (a blend of R-32, R-125, R-134a, R-600, and R-601a) is a hydrofluorocarbon (HFC) refrigerant designed as a direct replacement for R-22 in existing air conditioning and refrigeration systems.

The Alternative to R-22 Freon? M099 is the closest match to R-22 operating pressures and mass flow rates when compared to other *no-oil change*