Types Of Refrigerant Used In Ac: A Comprehensive Guide

  • HVAC Engineer
  • Feb 22, 2024
Types Of Refrigerant Used In Ac: A Comprehensive Guide
R22, R410A… R2D2?! Find out about AC Refrigerants

In terms of maintaining our houses and places of work cool throughout the scorching summer time months, air-con programs play an important position. These programs depend on a selected sort of refrigerant to soak up warmth from the indoor air and launch it exterior, creating a cushty and funky surroundings indoors. On this article, we’ll discover the various kinds of refrigerants utilized in air-con programs, their properties, and their impression on the surroundings.

1. R-22 (Freon)

R-22, also referred to as Freon, was some of the generally used refrigerants in air-con programs for a few years. Nonetheless, it has been phased out as a consequence of its dangerous results on the ozone layer. R-22 is a hydrochlorofluorocarbon (HCFC) and is being changed by extra environmentally pleasant alternate options.

Regardless of its phase-out, some older air-con programs should still use R-22. When you’ve got an older unit, it’s endorsed to think about upgrading to a more recent system that makes use of a extra eco-friendly refrigerant.

2. R-410A

R-410A is likely one of the mostly used refrigerants in trendy air-con programs. It’s a hydrofluorocarbon (HFC) and doesn’t contribute to ozone depletion. R-410A has turn out to be the usual refrigerant for residential and business air-con programs as a consequence of its excessive power effectivity and environmental friendliness.

One of many fundamental benefits of R-410A is its potential to soak up and launch warmth extra effectively than its predecessors. This leads to improved cooling efficiency and decreased power consumption, resulting in decrease utility payments.

3. R-32

R-32 is one other HFC refrigerant that has gained reputation in recent times. It’s thought of a extra sustainable different to R-410A as a consequence of its decrease International Warming Potential (GWP). R-32 can also be extra power environment friendly and has a better warmth switch coefficient, making it a wonderful alternative for air-con programs.

Moreover, R-32 has a decrease refrigerant cost in comparison with R-410A, which suggests it requires much less refrigerant to function. This reduces the environmental impression and makes it simpler to deal with and repair the system.

4. R-290 (Propane)

R-290, or propane, is a pure refrigerant that has gained consideration for its low environmental impression. It has zero ozone depletion potential and considerably decrease GWP in comparison with artificial refrigerants. R-290 is very power environment friendly and has wonderful warmth switch properties, making it appropriate for each residential and business air-con programs.

Nonetheless, as a consequence of its flammable nature, correct security precautions have to be taken when utilizing R-290. It requires specialised gear and educated professionals for set up and upkeep.

5. R-1234yf

R-1234yf is a hydrofluoroolefin (HFO) refrigerant that’s being broadly used as a alternative for R-134a in automotive air-con programs. It has a really low GWP and doesn’t contribute to ozone depletion. R-1234yf presents related efficiency to R-134a however with improved environmental traits.

As laws turn out to be stricter concerning the usage of excessive GWP refrigerants, R-1234yf is predicted to turn out to be extra prevalent within the air-con trade.

Incessantly Requested Questions:

Q: Are all air-con programs appropriate with the brand new refrigerants?

A: Not all air-con programs are appropriate with the brand new refrigerants. It’s important to verify the producer’s pointers and seek the advice of with an expert to find out the compatibility and feasibility of retrofitting or upgrading your system.

Q: Can I nonetheless purchase R-22 refrigerant?

A: Whereas the manufacturing of R-22 has been phased out, present shares should still be accessible for buy. Nonetheless, its value has elevated considerably as a consequence of restricted provide. It’s advisable to transition to a more recent system that makes use of an accepted refrigerant.

Q: Are the brand new refrigerants costlier?

A: The price of the refrigerant itself might fluctuate relying on the kind and availability. Nonetheless, the long-term advantages of utilizing extra energy-efficient refrigerants, similar to decreased power consumption and decrease utility payments, typically outweigh the preliminary funding.

Q: How can I get rid of previous refrigerants?

A: Correct disposal of refrigerants is essential to stop environmental hurt. It is strongly recommended to contact native recycling facilities or HVAC professionals who can safely deal with and get rid of previous refrigerants in keeping with environmental laws.

Q: Can I retrofit my present air-con system to make use of a brand new refrigerant?

A: Retrofitting an present air-con system to make use of a distinct refrigerant requires cautious consideration and analysis. It’s best to seek the advice of with a licensed HVAC skilled who can assess the compatibility and feasibility of retrofitting your system.


Choosing the proper refrigerant on your air-con system isn’t solely important for optimum efficiency but in addition for minimizing the environmental impression. The phase-out of older refrigerants like R-22 has led to the event of extra eco-friendly alternate options similar to R-410A, R-32, R-290, and R-1234yf. These refrigerants provide improved power effectivity, decreased environmental impression, and adjust to stricter laws. When contemplating an air-con system, it’s essential to seek the advice of with professionals who can information you in direction of probably the most appropriate and sustainable refrigerant choice.

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