The best replacement for R-22 Freon is usually R- 407c. It has a very low loss in capacity (0 – 5%) relative to R-22 and is less expensive than many other R-22 replacement refrigerants. If a system has R22 in it already you cannot use a replacement refrigerant to simply add to the R22 .
If your system is running on R22 most likely is using mineral oil to lubricate the compressor. There are " drop -in" R22 replacement in the market like R421a, R422B and MO99 (also MO29 for low-temp applications) but NONE of those can be mixed with R22.
Furthermore, can you use POE oil with r22? R22 Use Mineral Oil, POE oil is acceptable. Mixing is acceptable however it is preferred to use the oil that the original charge used.
RS-44b is compatible with all materials commonly used in refrigeration systems previously charged with R22. In general, materials which are compatible with R22 can be used with RS-44b.
RS-44b is a direct replacement for R22, providing an easy and long term solution. Because there is no need to use expensive and hygroscopic synthetic lubricants (POE), the risk of moisture ingress into a refrigeration system is completely avoided.
Below is a list of answers to questions that have a similarity, or relationship to, the answers on "Can you use 407c with r22?". This list is displayed so that you can easily and quickly access the available answers, without having to search first.
Unlike R22, R407C is a mixture of three refrigerants, which boil at different temperatures. R407C has a range or glide of approximately 5ºC. What will change? For the Specifier, very little apart from access to jobs requiring a refrigerant that does not contain chlorine.
RS-44 is a direct drop-in replacement for R22 in ac applications in systems with a capillary as well as an expansion device. There is no need to change the lubricant since, as with all the RS series of refrigerants, RS-44 is compatible with mineral, alkyl benzene and POE oils.
What If My AC or Heat Pump Uses R22? The ban doesn't require you to replace a functioning, R22 refrigerant AC or heat pump system. However, as the January 1, 2020 ban date approaches, you may need to evaluate your options if your air conditioning or heat pump system fails or requires emergency repairs.
Using R134a in Systems Designed for R22 If you have a home or auto air conditioner designed to work with R22 refrigerant, and the system needs a recharge, a number of issues prevent the direct substitution of R134a. R134a has a lower thermal conductivity than R22, so an R134a system needs a larger heat exchanger.
The R22 phase out date means that after January 1, 2020, HVAC systems that use R22 will be obsolete. If the repair requires adding R22 refrigerant to the system, the only options will be reclaimed and previously-produced R22 refrigerant.
R421A CANNOT be mixed with R22 in any situation. R421A is an effective refrigerant for process cooling and air-conditioning. R421A has demonstrated its effectiveness at higher temperatures with the benefit of lower discharge temperatures. Charge the equipment with R421A as a liquid.
R22 refrigerant and its HFC replacement R410A are totally incompatible. Your existing condensing unit and cooling coil are not suited to the new higher pressure refrigerant. It is possible to reuse the copper tubing lineset between the two, but we will discuss that later.
R-407C is a zero-ozone-depletion blend of HFC refrigerants R-32, R-125, and R-134a. It has been developed to approximate the properties of R-22, and will be used for many air conditioning and refrigeration applications in either new equipment or in retrofitting existing R-22 installations.
So, the R22 can be replaced by R417A in both new and existing plants. This is because, differently from R407C and R507 that require use of polyester oil, the R417A does not require a change of lubricant type since it is compatible with mineral, alkyl benzene and ester oils.
R-22 Prices On the Rise Five years ago R-22 sold for $10 per pound. Today R-22 can be as much as $50 per pound, depending on where you purchase it. Typical residential air conditioning units hold from 5 to 15 pounds of R-22. Even more, according to the EPA, production and sale of R-22 be cease completely by 2020.
For example, a 4-ton AC with a very bad refrigerant leak that's been ignored for months may need a complete fill-up, which requires approximately 16 pounds of R-22.
Forane® 407A (R-407A) is a non-ozone depleting, zeotropic blend of HFC refrigerants R-32, R-125, and R-134a. R-407A can also be used as an R22 retrofit for medium and low temperature refrigeration systems but is not intended for air-conditioning applications nor recommended for use in systems with flooded evaporators.
R22 can be bought at HVAC supply stores, HVAC service companies, and online. Personally I would never buy from a HVAC repair company since they always mark up the prices. HVAC supply companies also mark up prices but less so. To get the best prices buying online is hands down the best option.
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