R32 systems use up to 20% less refrigerant than R410A, making them more efficient and cost less to operate. Ozone Depletion Potential of 0.
In most cases, R32 is the superior refrigerant when compared to R410A R32 has a lower GWP (global warming potential) and is easier to recycle. R32 also has lower operating and maintenance costs and is nowadays more common than R410A.
Changes to the Dangerous Goods Legislation, effective in 2021, has new categories for A2L refrigerants. R32 is a synthetic greenhouse gas. If released to the atmosphere it can contribute to climate change. R32 is a flammable refrigerant.
Toxic substances like hydrogen fluoride and carbon dioxide are created when R32, like all fluorinated refrigerants, is burnt. Asphyxiation and freeze burns are also a risk.
Why R-410A Is Being Phased Out. Because R-410A operates at such high pressures, there is an increased risk of an environmentally harmful refrigerant leak during maintenance and repair work. The R-410A phase-out means new HVAC systems will use more sustainable refrigerants.
When Will R-410A Be Phased Out Completely? The complete phase-out of R-410A will likely occur by 2036, when HFC consumption is expected to be reduced by 85%. However, businesses should prepare well in advance, as the restrictions beginning in 2025 will already limit its use significantly.
In fact, one kilogram of refrigerant R410a has the same greenhouse impact as 2 tonnes of carbon dioxide, which is the equivalent of running your car for 6 months.
One key advantage of R32 refrigerant is that it is a single component, not a blend. This makes it easier to service and recycle. Additionally, R32 refrigerant requires less volume charge compared to our existing refrigerant, R410A, thanks to its higher cooling and heating performance.
R410A systems are not built to handle flammable substances like R32, so treating R32 like an R410A replacement can have dangerous consequences for you, your home and your HVAC technician.
What refrigerant will replace R-410A in 2025? For whole-home systems, Lennox has chosen 2025 Compliant Refrigerant R-454B due to its excellent performance for ducted systems and zero ozone depletion potential. For mini-splits, we selected R-32, designed to optimize efficiency and reliability in ductless systems.
In new chiller production, HFC refrigerants like R-404A and R-410A are prohibited from 1st January 2024. The production of new equipment using R-22 ceased entirely in 2022, and the HCFC phaseout will be completed in 2030.
In general speak, Class A refrigerants are called non toxic and Class B are called toxic. Compared to all other Class A (Lower Toxicity) refrigerants such as R22, R410A, R134a, R290 (Propane) and R600a (Isobutane), R32 has the highest (safest) Acute Toxicity Exposure Limit (ATEL) of 220,000 ppm.
Regarding refrigeration oil applied to R32, there are two main issues. First issue is miscibility with R32, because incumbent refrigeration oil for R410A is rather immiscible to R32.
R-32 is the most balanced refrigerant in terms of environmental impact, energy efficiency, safety, and cost-effectiveness. Refrigerant is a medium for conveying heat.
Can a R32 system be charged with R410A or vice versa? Daikin The simple answer is no. The operating characteristics of both refrigerants are different and the systems have been designed accordingly. One example is that the compressor runs hotter for a R32 system so the compressor design will be different.
All new systems will use either R-32 or R-454B HVAC Refrigerant, replacing the older R-410A version. It might seem like a great bother until you understand the purpose of these refrigerants. Air conditioners and heat pumps use a principle called heat transfer, illustrated by an ordinary popsicle.
Is it possible to upgrade the refrigerant in an existing unit? Please note that it is not possible to transition an R410A refrigerant unit to an R32 unit. Refrigerants should only be handled by trained, qualified technicians. These experts can assist you in finding an R32-capable system.
As R-410A is phased out, A2L refrigerants are emerging as the primary alternatives due to their lower Global Warming Potential (GWP) and reduced environmental impact. Refrigerants like R-32 and R-454B are leading the charge, offering a GWP that is significantly lower than R-410A.
You will, of course, need to ensure that any equipment you use includes an R32 compliant recovery unit, an R32 specific vacuum pump, a torque wrench set to the manufacturer's recommendations on your flare joints and for pipework, stick to material that is R410A rated, as this also suitable for R32.
The two gases are also different in terms of their volumetric cooling capacity. R410A has a high VCP, which requires larger pipes. Thus, it's not as efficient as R32, whose VCP is significantly lower. Moreover, R32 has a higher pressure ratio than R410A.
Potential Drawbacks of R32
Despite the growing popularity of R32 refrigerants, there are some potential drawbacks associated with its use. These include flammability and safety concerns and retrofitting and compatibility issues.
The technological advancements and racing impact of the R32 made it the JDM hero it is today and just like the BMW E30, the R32 is considered one of the greatest performance cars of all time. Even by today's standards, it is still a very capable performance car.
R32 is not suitable as a drop-in replacement for R410A and must only be used in systems specifically designed for R32.
The chief drawback of R-410A is its Global Warming Potential. While the Montreal Protocol sought to eliminate substances with the potential to deplete the ozone layer, most refrigerants developed in response to the treaty are not altogether environmentally unharmful.
The R32 refrigerant belongs to the HFC family of refrigerants. These hydrofluorocarbons do not contribute to depletion of the ozone layer. Unlike blended refrigerants, R32 is a single component refrigerant, making it easier to reuse and recycle.