A refrigerant that can be used as a direct service "drop-in" substitute for R-22 in a small appliance is R-134a. This substance is a hydrofluorocarbon (HFC) that has been adopted as a replacement for chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) in various refrigeration systems.
Freon MO99 is the gold standard for R-22 alternatives and was developed by the same scientists who engineered Freon R-22. The benefits of Freon MO99 include: Capacity — The ability of Freon MO99 to heat or cool a given space is closer to Freon R-22 than any other refrigerant on the market.
An R-22 Refrigerant Replacement for Direct Expansion Refrigeration. Freon™ MO29 (R-422D) refrigerant is a low-toxicity, non-ozone depleting hydrofluorocarbon (HFC) replacement for R-22.
R-407C is a blend of hydrofluorocarbons (HFCs) that has similar thermodynamic properties to R-22, making it suitable for use as a refrigerant in systems designed for R-22. It can be used as a drop-in replacement, which means no modifications are required in the system when transitioning from R-22 to R-407C.
It is concluded that R458A performs well as a drop-in alternative refrigerant to R22 and surpasses that of R453A, as it showed slightly less deviation in coefficient of performance.
R-22 uses simple mineral oil, non-toxic, safe, stable, etc. while R-410a uses a somewhat exotic Poly o Ester (POE) oil typically found in jet turbine engines. The refrigerant used MUST match the oil present in the system, which is one reason why you can't replace the R-22 with R410a in a system.
Among those products is Freon™ MO99™ (R-438A), a retrofit refrigerant for R-22 that does not require an oil change. Freon™ MO99™ works with: Residential and commercial air conditioning systems (rooftop and indoor packages units, direct expansion chillers, split systems)
The biggest problem of using refrigerant R404A to replace refrigerant R22 is the problem of lubricating oil. PVE ester oil must be used to replace the mineral lubricating oil for R22. Ester lubricants have high affinity with water and poor dehydration.
Using these retrofit guidelines, many R-22 systems can be retrofitted for use with Freon™ 407C in air conditioning, heat pump applications, and refrigeration applications to allow existing equipment to continue to operate safely and efficiently, even after R-22 is no longer available.
Yes. The mass flow rate and operating pressures of Freon™ MO99 are the closest of all the mineral oil compatible replacement products and will likely perform adequately in an existing R-22 system with a capillary tube expansion device.
R417A refrigerant is an HFC mixture that serves as a substitute for R22. It is compatible with traditional lubricants. In most cases, the lubricant type does not need to be changed in the event of retrofitting.
So… what refrigerant can be mixed with R-22? None. You can't mix refrigerants.
Since 2010, the most common R-22 replacement was R-410A, a refrigerant without the ozone-depleting qualities of R-22. Read this article on the refrigerant transition for a more thorough explanation of the reasoning and science behind the change.
Although the drop-in replacement of R22 to R32 reduces the performance of the A/C system, but since GWP of R32 (650) is relatively low compared to R22 (1818), the use of R32 as working fluid will significantly reduce the emission of global warming compound in the atmosphere.
Examples of Drop-In Refrigerants:
R437A and R438A: Replacements for R22 in refrigeration and air-conditioning systems. R449A or R448A: Alternatives to R404A, with significantly lower GWP. R513A: A replacement for R134a with low global warming potential (GWP)
Today, R-290 is used as a low-global warming potential (GWP) replacement for refrigerants R-22, R-404, & R-134a for certain applications.
Freon™ MO99 refrigerant is a relatively affordable and eco-friendly alternative for R22 air conditioners. You can use it to revive older systems with little to no refrigerant charge, as well as systems that need replacement components.
R-407A is a close match to R-22's capacities and flow rates, making it well suited as a retrofit for R-22 in supermarket and food storage applications. Additionally, R-407A is one of the more energy efficient R-22 retrofit options available for refrigeration applications.
The pressure can become high enough for parts of the system to rupture. At the very least, leaks will occur.
No ,R404A works at higher pressure and is much better in absorbing and releasing heat . R22 refrigerant condenser is not efficient for r404a .
The information below will try to dispel some of these myths. Arkema recommends using Forane® 427A (R427A) - The EASY RETROFIT™ for your r-22 retrofit solution. When it comes to drop-ins, the truth is that there are none. The hope of “drop-in” refrigerants has become common over the years.
R458A also serves as a true R22 replacement; no further modifications are required for use. R458A works to improve the overall performance of refrigeration and HVAC systems while reducing energy consumption.
Contractors have chosen Freon™ MO99 for millions of quick, easy, and cost-effective R-22 retrofits. Freon™ MO99 is U.S. EPA SNAP-approved, compatible with mineral oil and POE, and has the closest performance match to R-22 compared to other “no oil change” replacements.
Features and Benefits. Freon™ 407C has been a popular R-22 replacement because of its properties, which include: Similar cooling capacity, energy efficiency, and pressures as R-22 in systems. An ability to be topped off after a leak, multiple times, with minimal impact on system performance.
As of January 1, 2020, production and import of R22 refrigerant will be illegal in the United States. Of course, continued use of your air conditioner (AC) or heat pump system using R22 refrigerant is allowed.