What are HC-12a/134+® and HC-22a/502a®? HC12a/134+ and HC-22a/502a are hydrocarbon blends that were developed as effective replacements for non-ozone-depleting substitutes for CFC-12 (Freon), HFC-22 and R502. HC-12a/134+ and HC-22a/502a have zero ozone-depletion-potential (ODP) and negligible global-warming-potential (GWP), which makes them the most environmentally sound refrigerants on earth.

Do HC-12a/134+® and HC-22a/502a® Require Retrofitting? No! They are both direct drop-in replacements. They require no retrofitting or redesigning of a refrigeration system because they are completely compatible with all the materials and oils (mineral or synthetic) in all systems. The savings can be enormous!

Are HC-12a/134+® and HC-22a/502a® Safe? Very. They are non-toxic, earth-friendly compounds. As hydrocarbon blends, they are flammable, but the risk of ignition has been shown to be extremely low. Even so, a strong odor has been added to the products so that any leak in a refrigeration system can be readily detected and corrected.

How Efficient are HC-12a/134+® and HC-22a/502a®? Extremely. They are up to 30% more efficient than Freon, and far more efficient than HFC-134a. This means less wear on your refrigeration system, substantial energy savings, and reduced fuel and energy costs.

How are HC-12a/134+® and HC-22a/502a® Installed? There are no new procedures to learn. The same gauges are used, and refrigeration systems are charged in the same manner used with the refrigerant being replaced. HC-12a/134+ and HC-22a/502a are completely compatible with the synthetic oil used with HFC-134a and the organic oils in CFC-12 systems. No flushing or oil changes required.

Do HC-12a/134+® and HC-22a/502a® Offer Other Benefits?
-Hydrocarbon refrigerants do not become caustic if contaminated with moisture or oxygen.
-Hydrocarbon refrigerants are better conductors of heat and require less horsepower to compress, which reduces compressor wear and extends compressor life.
-Hydrocarbon refrigerants extend compressor winding life, produce negligible copper plating and coke formation on valves, and extremely low chemical breakdown.

Do HC-12a/134+® and HC-22a/502a® Have EPA Approval? HC-12a/134+ is acceptable as a substitute for CFC-12 in retrofitted and new industrial process refrigeration systems. The primary market for both HC-12a/134+ and HC-22a/502a, however is as second-generation replacement for HFC-134a and all other substitutes for Freon that are non-ozone depleting.
EPA's Final Rule, published April 1, 1994, states:
"In this final rule, the Agency has determined that second-generation replacements, if they are non-ozone depleting and are replacing non-ozone depleting first generation alternatives, are exempt from reporting requirements under Section 612."

Are HC-12a/134+® and HC-22a/502a® Guaranteed? They are guaranteed to perform as efficient refrigerants in all systems and not to harm refrigeration system components or other related mechanical equipment if installed and used according to factory directions.

Are HC-12a/134+® and HC-22a/502a® Organic? Yes. They are blends of naturally occurring substances distilled from crude oil. HC-12a/134+ and HC-22a/502a are manufactured without undergoing a complex chemical transformation. The production of HC-12a/134+ and HC-22a/502a generates no toxic by-products or harmful pollutants of any kind.

Information provided by OZ Technology, Inc., manufacturer and patent holder of HC-12a/134+® and HC-22a/502a®