A Comprehensive Guide to Different Types of Coolants for Commercial Air Conditioning Systems
When it comes to the maintenance, repair, and updating of HVAC systems, understanding the variety of coolants used in newer models of commercial air conditioning systems is essential. Making informed decisions about these coolants can greatly impact the efficiency and lifespan of your HVAC system. Here, we will discuss some of the most popular refrigerants currently in use and their main properties, including the older R-22 coolant that needs to be replaced with newer alternatives.
R-410A
- This coolant has been approved for use in new HVAC systems.
- R-410A is commonly referred to by brand names such as Suva® 9100, Genetron® AZ-20®, or Puron®.
- Being a hydro-fluorocarbon (HFC), it does not cause ozone depletion.
- This is the most commonly-used refrigerant for newer light-commercial and home unitary air conditioning systems.
- The operating pressures for R-410A are significantly higher than R-22, requiring compatible components.
R-22
- R-22 is no longer used for new air conditioning systems as of 2010.
- Freon® is a well-known brand name for this coolant.
- It is a hydro-chlorofluorocarbon (HCFC) that causes ozone depletion.
- Use of R-22 is prohibited in all HVAC units after 2015.
R-134a
- R-134a is widely used in refrigeration and air conditioning systems globally.
- As a hydro-fluorocarbon (HFC), it does not contribute to ozone depletion.
- It was the first non-ozone-depleting fluorocarbon coolant successfully commercialized.
- This single-component coolant is commonly used in large commercial screw chillers.
R-407C
- R-407C is known by brand names like Genetron® 407C and Suva® 407C.
- Being an HFC, it does not lead to atmospheric ozone depletion.
- Among higher-temperature hydro-fluorocarbon coolant options, R-407C is the closest match to R-22.
- It is a high-glide coolant with slightly lower efficiency but provides a simpler conversion due to similar pressures to R-22.
Choosing the Right Coolant
It is important to consult with a qualified HVAC technician or specialist to determine the most suitable coolant option for your specific air conditioning system. They will consider factors such as system compatibility, efficiency, environmental impact, and regulatory compliance. By selecting the appropriate coolant, you can ensure optimal performance and environmental responsibility for your HVAC system.
R-410A: The Ideal Coolant Option for Air Conditioning Systems
When it comes to cooling systems for both residential and light commercial use, R-410A stands out as an excellent long-term coolant choice. Its outstanding performance and low direct global warming potential (GWP) value make it a highly efficient and environmentally friendly option. Let’s explore why R-410A is preferred in new system designs and its benefits for both equipment and the environment.
Efficiency and Performance
R-410A surpasses other coolants by its ability to absorb and release a greater amount of heat compared to R-22. This feature allows the air conditioning compressor to run cooler, minimizing the risk of overheating and potential compressor burnouts. Moreover, R-410A is incredibly energy efficient and is compatible with most air conditioning systems, making it a convenient choice.
Higher Pressure, Better Quality
Operating at higher pressures than R-22, R-410A requires compressors that are built to withstand these increased pressures. This results in better-made systems that are less likely to crack, ensuring longevity and durability.
Improved Lubrication
R-410A systems utilize Polyol Ester oil (POE) for lubrication instead of the mineral oil previously used. POE oil dissolves better and provides superior lubrication, reducing wear and tear on the compressor. This ultimately extends the lifespan of the equipment, saving you money in the long run.
Environmental Friendliness
Selecting an environmentally friendly air conditioning system is an important consideration for many. R-410A systems are more sustainable and gentle on the environment, making them eligible for tax incentives or rebates in certain areas. By opting for an R-410A system, not only are you making an economically sound choice, but you are also contributing to a greener future.
With its exceptional efficiency, performance, and environmental benefits, it’s no wonder R-410A has become the coolant of choice for new air conditioning system installations. By investing in an R-410A system, you are ensuring superior cooling capabilities, longer equipment life, and a positive impact on the environment. Make the responsible choice and upgrade your air conditioning system with R-410A.