R-32

RefrigerantHQ's Pressure Charts

One of the very first steps when it comes to diagnosing your home air conditioner, refrigerator, or even your vehicle’s air conditioner is understanding the temperature and the current pressure that your system is operating at. Having these facts along with the saturation point, the subcool, and the superheat  numbers for the refrigerant you are working on are essential when it comes to really understanding what is going wrong with your system.

After a visual inspection the very next step for the most seasoned technicians is pulling out their gauges and checking the pressure and temperature. It just becomes second nature after enough calls. I have heard stories of rookie techs calling some of the pros on their team for help on a system that they’re stuck on. It doesn’t matter what the situation is. It doesn’t matter if you’re in Miami or in Fargo. It will never fail that one of the first questions the pros ask the rookie is what is your subcool and what is your superheat? Having  and understanding these numbers is key to figuring out what to do next.

But, these numbers won’t do you any good if you don’t know what refrigerant you are dealing with and what the refrigerant’s boiling point is at each pressure level. This article aims at providing you with just that information.

R-32 Pressure Chart

The HFC R-32 refrigerant is quickly becoming popular, more so then it already was. Most of you know R-32 as a necessary component in the widely popular HFC blend known as R-410A Puron. R-32 along with R-125 gets you that R-410A that is found in nearly every air conditioner today.

However, in recent years there has been a push to slowly phase down R-410A. That is because of 410A’s very high Global Warming Potential, or GWP. The higher the GWP the more harm the refrigerant does to the climate. R-410A has a GWP of over two-thousand whereas R-32 has a GWP of only six-hundred and seventy-five.

While R-32 isn’t perfect it is a lot better then R-410A. That is why we are beginning to see a rise of usage of R-32 in the European Union and here in the United States as well. I do not foresee this becoming a long term trend but only as a temporary place holder until the world finds a more suitable R-410A replacement.

If you would like to read more about R-32 refrigerant please click here to be taken to our refrigerant fact sheet.

Let’s take a look at our pressure chart:

°F °C PSI KPA
-94 -70 -9.46 -65.2
-90.4 -68 -8.77 -60.5
-86.8 -66 -8.02 -55.3
-83.2 -64 -7.19 -49.6
-79.6 -62 -6.27 -43.2
-76 -60 -5.27 -36.3
-72.4 -58 -4.17 -28.8
-68.8 -56 -2.98 -20.5
-65.2 -54 -1.67 -11.5
-61.6 -52 -0.26 -1.8
-58 -50 1.28 8.8
-54.4 -48 2.95 20.3
-50.8 -46 4.75 32.8
-47.2 -44 6.69 46.1
-43.6 -42 8.78 60.5
-40 -40 11.04 76.1
-36.4 -38 13.45 92.7
-32.8 -36 16.05 110.7
-29.2 -34 18.82 129.8
-25.6 -32 21.79 150.2
-22 -30 24.96 172.1
-18.4 -28 28.34 195.4
-14.8 -26 31.94 220.2
-11.2 -24 35.77 246.6
-7.6 -22 39.83 274.6
-4 -20 44.15 304.4
-0.4 -18 48.72 335.9
3.2 -16 53.56 369.3
6.8 -14 58.68 404.6
10.4 -12 64.09 441.9
14 -10 69.79 481.2
17.6 -8 75.81 522.7
21.2 -6 82.15 566.4
24.8 -4 88.82 612.4
28.4 -2 95.84 660.8
32 0 103.21 711.6
35.6 2 110.95 765.0
39.2 4 119.07 821.0
42.8 6 127.58 879.6
46.4 8 136.49 941.1
50 10 145.81 1005.3
53.6 12 155.57 1072.6
57.2 14 165.76 1142.9
60.8 16 176.41 1216.3
64.4 18 187.53 1293.0
68 20 199.13 1373.0
71.6 22 211.21 1456.2
75.2 24 223.81 1543.1
78.8 26 236.93 1633.6
82.4 28 250.59 1727.8
86 30 264.8 1825.7
89.6 32 279.57 1927.6
93.2 34 294.93 2033.5
96.8 36 310.89 2143.5
100.4 38 327.47 2257.8
104 40 344.67 2376.4
107.6 42 362.51 2499.4
111.2 44 381.05 2627.2
114.8 46 400.24 2759.6
118.4 48 420.15 2896.8
122 50 440.79 3039.1
125.6 52 462.17 3186.6
129.2 54 484.33 3339.3
132.8 56 507.27 3497.5
136.4 58 531.02 3661.3
140 60 555.63 3830.9
143.6 62 581.1 4006.5
147.2 64 607.49 4188.5
150.8 66 634.81 4376.9
154.4 68 663.11 4572.0
158 70 692.45 4774.3

Conclusion

There you have it folks. I hope this article was helpful and if you find that something is inaccurate here in my chart please do not hesitate to reach out to me. I have sourced this the best I could but there is always going to be conflicting data.  I’ve seen it multiple times on various refrigerants. I’ll search for a refrigerant’s pressure chart and get various results all showing different pounds per square inch temperatures.

The aim with this article is to give you accurate information so again, if you see anything incorrect please let me know by contacting me here. On top of this post we are also working on a comprehensive refrigerant pressure/temperature listing. The goal is to have every refrigerant out there listed with a pressure/temperature chart that is easily available. 

Thanks for reading,

Alec Johnson

RefrigerantHQ

Owner

facts

In an effort to build our refrigerant fact and information sheets further we have taken the time today to put together some details on the HFC R-32 refrigerant. Like in our previous fact sheets we will first go over all of the details about this refrigerant and then we will touch on some of the most notable points. Without further ado, let’s take a look:

The Facts

Name:R-32
Name - Scientific:Difluoromethane
Name (2):HFC-32
Classification:HFC Refrigerant
Chemistry:CH2F2
Chemistry (2):Carbon fluoride hydride
Chemistry (3):Methylene difluoride
Chemistry (4):Methylene fluoride
Status:Active & Growing Market.
Future:May be Phased Out in Next Ten-Twenty Years Due to GWP.
Application:Residential & Commercial Air-Conditioning.
Application (2):Industrial Refrigeration
Application (3):Key Ingredient in the R-410A Puron Blend.
Application (4):Key Ingredient to other refrigerant blends such as R-407A, R-407B, etc.
Replacement For:R-22 Freon & R-410A Puron
Ozone Depletion Potential:0
Global Warming Potential:675
Toxicity Levels:A (No Toxicity Identified.)
Flammability Levels:Class 2 - Lower Flammability
Lubricant Required:POE
Boiling Point:-52.5° Celsius or -62.0° Fahrenheit.
Critical Temperature:78.11 Celsius or 172.60° Fahrenheit
Critical Pressure:5.72 MPA or 829.62 pound-force per square inch.
Auto ignition Temperature:648° Celsius or 1,198° Fahrenheit
Manufacturers:Various Including: Honeywell, Chemours, Arkema, Mexichem, Chinese, etc.
Manufacturing Facilities:All Over Including: USA, Mexico, EU, China, and others.
Form:Gas
Color:Colorless Liquid & Vapor
EPA Certification Required:Yes, 608 certification required by January 1st, 2018.
Require Certification to Purchase?Yes, 608 certification required by January 1st, 2018.
Cylinder Color:Undefined by ASHRAE
Bulk Purchasing:CLICK FOR A QUOTE!

R-32 Pressure Chart

°F °C PSI KPA
-94 -70 -9.46 -65.2
-90.4 -68 -8.77 -60.5
-86.8 -66 -8.02 -55.3
-83.2 -64 -7.19 -49.6
-79.6 -62 -6.27 -43.2
-76 -60 -5.27 -36.3
-72.4 -58 -4.17 -28.8
-68.8 -56 -2.98 -20.5
-65.2 -54 -1.67 -11.5
-61.6 -52 -0.26 -1.8
-58 -50 1.28 8.8
-54.4 -48 2.95 20.3
-50.8 -46 4.75 32.8
-47.2 -44 6.69 46.1
-43.6 -42 8.78 60.5
-40 -40 11.04 76.1
-36.4 -38 13.45 92.7
-32.8 -36 16.05 110.7
-29.2 -34 18.82 129.8
-25.6 -32 21.79 150.2
-22 -30 24.96 172.1
-18.4 -28 28.34 195.4
-14.8 -26 31.94 220.2
-11.2 -24 35.77 246.6
-7.6 -22 39.83 274.6
-4 -20 44.15 304.4
-0.4 -18 48.72 335.9
3.2 -16 53.56 369.3
6.8 -14 58.68 404.6
10.4 -12 64.09 441.9
14 -10 69.79 481.2
17.6 -8 75.81 522.7
21.2 -6 82.15 566.4
24.8 -4 88.82 612.4
28.4 -2 95.84 660.8
32 0 103.21 711.6
35.6 2 110.95 765.0
39.2 4 119.07 821.0
42.8 6 127.58 879.6
46.4 8 136.49 941.1
50 10 145.81 1005.3
53.6 12 155.57 1072.6
57.2 14 165.76 1142.9
60.8 16 176.41 1216.3
64.4 18 187.53 1293.0
68 20 199.13 1373.0
71.6 22 211.21 1456.2
75.2 24 223.81 1543.1
78.8 26 236.93 1633.6
82.4 28 250.59 1727.8
86 30 264.8 1825.7
89.6 32 279.57 1927.6
93.2 34 294.93 2033.5
96.8 36 310.89 2143.5
100.4 38 327.47 2257.8
104 40 344.67 2376.4
107.6 42 362.51 2499.4
111.2 44 381.05 2627.2
114.8 46 400.24 2759.6
118.4 48 420.15 2896.8
122 50 440.79 3039.1
125.6 52 462.17 3186.6
129.2 54 484.33 3339.3
132.8 56 507.27 3497.5
136.4 58 531.02 3661.3
140 60 555.63 3830.9
143.6 62 581.1 4006.5
147.2 64 607.49 4188.5
150.8 66 634.81 4376.9
154.4 68 663.11 4572.0
158 70 692.45 4774.3

Thoughts on R-32

You may not know this but R-32 is one of the most popular refrigerants in the world. While you may not physically see it everyday I can assure you that it is riding in the back of your service van as you travel from customer to customer. Not sure what I mean? Well R-32 is one of the key ingredients to form R-410A Puron. So, while you may not be carrying around a cylinder of R-32 you are carrying around Puron that was made from R-32. In fact, R-32 is used in quite a bit of blends in today’s world. It is used to create various refrigerants such as: R-410A, R-407A, R-407B, R-407C, R-407D, R-407E, R-407F and R-410B. R-32 along with R-125 are some of the most versatile refrigerants used today.

While we are used to using R-32 as a blend it is also seeing a rise of usage in residential and commercial air conditioners. This rise started in the eastern countries like Japan, Korea, India, and now Australia. Japan alone has over ten million R-32 units installed and running. These countries are using R-32 as an alternative to the higher Global Warming Potential (GWP) R-410A Puron. In fact some of them just skipped right from R-22 over to R-32 and didn’t even bother with R-410A. While R-32 isn’t perfect with it’s six-hundred and seventy-five GWP it is significantly better then R-410A’s GWP of two-thousand and eighty-eight. That’s a nearly seventy percent decrease in GWP just by using R-32 over R-410A. This switch from R-410A over to R-32 has also begun to pick up speed over in the European Union. 

Over here in America though the move from 410A to 32 has been much slower. In fact you would be hard pressed to find a full residential or commercial R-32 air conditioning unit. This is mainly due to R-32 not being SNAP approved for larger air conditioning units. (SNAP approval list can be found by clicking here.) Now, I’ll be honest with you folks here. I was a bit confused when writing this article. When I looked through the EPA’s listing of refrigerants approved for home and light commercial air conditioning I didn’t find R-32 listed. However, I did find articles where R-32 units are being manufactured and used right here in the United States. The only difference that I could find was that these units being manufactured here are very small air conditioning units mainly for hotel rooms. The story from the CoolingPost can be found by clicking here. The distinction I can see here is that the smaller air conditioners used for hotels were approved by SNAP under a different application category.

While R-32 may not be listed in the EPA’s SNAP approved refrigerant it’s usage is spreading across the world. I have read many articles stating that R-32 is expected to be the standard refrigerant for home and commercial traditional split air conditioners. There are a lot of benefits to R-32, number one being reducing the carbon footprint and Global Warming Potential. Another point is that R-32 doesn’t require as high as a charge as 410A does. (Twenty percent less) So, you save money on efficiency and also when replacing the refrigerant in case of a leak or repair down the road. Another big pro on R-32 that not a lot of folks realize is that 32 is a single refrigerant. It is NOT a blended refrigerant. That simple fact can make a big difference when you go to recover, recycle, or even try to reclaim a blended refrigerant. I’ve been told by a few reclaimers that R-410A is nearly impossible to reclaim as a recovered cylinder may only contain eighty percent of one refrigerant. The reclaimer then has to tap into a virgin bottle of the missing refrigerant to get the blend back to the proper ratios. You will not have this problem with R-32.

It’s not all a bed of roses though folks. As with any refrigerant there are always upsides and downsides. In the case of R-32 the big downside is it’s safety rating. Unlike Ammonia R-717, it is not the toxicity that we need to worry about. No, in the case of R-32 it’s the flammability. Depending on where you look R-32 is either rated as a 2 or a 2L on the refrigerant flammability scale. (Our official ‘Refrigerant Toxicity & Flammability,’ article can be found by clicking here.) What this means folks is that there is risk of ignition when working with or using R-32. I’m not going to sugarcoat it here and try to sell you the refrigerant. If the refrigerant is handled improperly or if it is in too enclosed of a space then there is risk of ignition. It’s as simple as that. Obviously the larger the load of refrigerant you are dealing with the greater the risk there is. For more information on the risk of R-32 igniting click here to be taken to AirAH.org.au’s R-32 common questions page. The excerpt we’re looking for here is on page 2 under, ‘How easy is R-32 To Ignite?’

Tests carried out by Daikin and Suwa ,Tokyo University of Science show that even if combustion of R32 occurs (at concentrations of more than 320g/m3), it is not explosive and the possibility of fire spreading is extremely low. – Source

Over in the Asian countries this risk doesn’t seem to bother them and they more or less do just fine with R-32. Sure, there are always accidents but even these accidents can be non-events if everything is done properly and safely. Over here in America though there seems to be an aversion to dealing with flammable refrigerants such as R-32 and R-290. I’m not sure if this is just a fear of the unknown, resistance to change, or if there just no market for it. Perhaps in the future, the EPA will lift some restrictions on R-32 and techs will begin to get a feel for these flammable refrigerants.

I may have mentioned this before, but it should be brought up again. While R-32 is being marketed as a great alternative to R-410A you should know that R-32 cannot be dropped in as a replacement in an existing R-410A system. If you or your customer wants to go the R-32 route then they will need to purchase a new system specifically designed to run R-32. If you do not then you risk damaging your entire system by putting the wrong refrigerant in it. You wouldn’t put diesel in a Ford Focus would you? The same principle applies. Your 410A air conditioner is specifically made to handle 410A and your 32 system is specifically designed to handle 32. It is also worth mentioning that you should NOT attempt to retrofit a 410A unit over to 32. It is simply not safe. This is because of the 2L flammability rating. The components of an 410A machine were simply not built to safely handle flammable refrigerants. You can read more about reasons NOT to retrofit by clicking here.

The last thing I want to mention on R-32 is that it is not a miracle refrigerant. As we all know each refrigerants has it’s ups and downs. The only reason R-32 looks so sexy right now is it’s lower Global Warming Potential when compared to R-410A. But, when we are done with 410A, or when something sexier comes along, the world will drop R-32 just like it is beginning to drop R-410A. I don’t see 410A lasting another fifteen years with the ways thing are going. R-32 will be close behind it as well. While everyone is pushing for R-32 right now I am stand back from the crowd with skepticism. I predict R-32 will be gone in another twenty years. Is it worth it to the climate, the business owners, and the consumers to purchase a whole new generation of R-32 machines just to see them phased out in another ten or fifteen years?

As to what R-32 will be replaced with, I have no idea. Your guess is as good as mine. Perhaps we will see a natural refrigerant come to rise. There is always new technology being developed to accommodate these natural refrigerants and with these new technologies we are able to easily apply natural refrigerants where it was once impossible. One example off the top of my head is Daimler using R-744 Carbon Dioxide in automotive applications. Rewind ten years ago and no one had heard of such a thing. Now it is in quite a few Daimler model vehicles. Maybe instead of natural refrigerants the next generation of home and commercial air conditioners will see a refrigerant that just hasn’t been invented yet. Perhaps it is a new HFO refrigerant being developed in a lab right now by Chemours or Honeywell. Time will only tell.

Conclusion

Well folks that about covers it for R-32 refrigerant. No matter where you are in the world the chances are you or someone near you are using R-32 or they areusing an R-32 origin based blend. While it does have a much less Global Warming number then 410A I still do not see it standing the test of time. Six-hundred and seventy-five GWP is still just too much. For the foreseeable future though folks we should get used to seeing R-32.

Thanks for reading and if you found anything that was inaccurate or that was simply not stated please contact me and I will update this article.

Alec Johnson

RefrigerantHQ

Sources

What Is It?
HFCs, or HydroFluroCarbons, are a commonly used refrigerant classification used across the globe. Some of the most common HFC refrigerants that you may have heard of are R-134a, R-404A, R-410A, R-125, and R-32. These refrigerants are used in a variety of applications from automotive, to home air conditioners, all the way to industrial refrigeration. In recent years there has been a push to phase out HFC refrigerants due to their impact on the environment, but I’ll get into that a bit later into this article.

HFC refrigerants first started becoming popular and widespread in the early 1990’s. This came about due to the implementation of the Montreal Protocol. The Montreal Protocol was a treaty that organized and targeted the phase out of Ozone damaging refrigerants like CFCs and HCFCs. These Ozone depleting refrigerant such as R-12 and R-22 were the go to refrigerants for decades and were used all over the globe. It was in the late 1970’s and early 1980’s that scientists discovered these refrigerants were releasing Chlorine into the atmosphere when they were vented or leaked. This leaked Chlorine couldn’t break down in the atmosphere and ended up eating away at the Ozone layer. The more Chlorine that was released the faster the damage occurred.

R-134a Refrigerant
R-134a Refrigerant

There was an immediate push from various countries to phase out CFC and HCFC refrigerants. The first target was R-12 in the early 1990’s. R-12 was majorly found in car air conditioners and it was replaced by the HFC refrigerant known as R-134a. Not too many years afterward R-404A began to see popularity after replacing R-502 and recently in 2010 R-22 was phased down and intended to be replaced by the HFC R-410A.

We have been chugging away with HFCs for the past few decades and the Ozone has nearly healed from the earlier damage. But now, we have a different problem when it comes to these new refrigerants. While HFCs do not contain Chlorine they do have a very high Global Warming Potential, or GWP. GWP is a measurement that is used to measure the impact a Greenhouse Gas has on the climate and environment. The higher the number the more harmful the substance is to the climate. As a zero base for the scale R-744 or Carbon Dioxide was used. R-744 has a GWP of one. Whereas, R-134a has a GWP of one-thousand three-hundred and forty-four. Think about that difference for a moment folks and let the impact sink in.

The HFC Phase Downs

While HFCs saved the Ozone layer we now understand that they are not a sustainable alternative refrigerant due to their high GWP. The push is on now to begin phasing down or completely phasing out HFC refrigerants for lower GWP/Non Ozone depleting alternatives. Depending on where you are in the world you may have already seen the ramifications of these phase downs.

The European Union phased out R-134a on new automobiles back in 2015 and are now actively working on phasing out R-404A as well as R-410A. Their replacements have either been lower GWP HFC refrigerants such as R-32, natural refrigerants such as R-290 or R-744, or the new classification of refrigerants known as HydroFluroOlefins or HFOs. While there is not a perfect alternative yet to HFCs many companies and countries are working towards multiple alternatives. Also, in the fall of 2016 an Amendment to the Montreal Protocol was signed. This amendment, called the Kigali Amendment, was aimed at phasing down HFC refrigerants across the world. Over a hundred countries signed the document.

I won’t get into all of the details here but the United States has had an interesting table to phase out. We signed the Kigali Amendment but haven’t ratified the treaty in the Senate. The EPA planned to phase out HFCs but their regulations were over turned by a Federal Court. We now have States doing their own policies on HFCs.

Prices & Purchase Restrictions

Chances are if you have a home air conditioner or an automobile from 2015 or earlier than you are reaping the benefits of an HFC air conditioning system. Over in Europe the cost of HFCs have skyrocketed to astronomical levels due to their phase outs. It’s so bad over there that organized crime has begun to take part in black market refrigerant sales.

Here in the United States things are a lot less hectic. The price on HFC refrigerants has been pretty stable over the past few years. Sure, we’ll always have our ups and downs, especially in the summer, but we haven’t seen anything like the European price jumps.

There is one thing to note for those of you looking to do your own repairs. On January 1st, of 2018 the Environmental Protection Agency extended their refrigerant sales restriction over to HFCs. What that means is that if you are not certified with the EPA (Either 608 or 609 certified) then you are not legally able to purchase or handle HFC refrigerants. This has frustrated a lot of do-it-yourselfers who are used to doing their own repairs.

There are a couple exception to this that should be noted:

  • If you are purchasing cans of refrigerant in under one or two pound quantities then you are still able to buy without being certified.
  • If you provide a signed document to your vendor stating that you will NOT be using the refrigerant you are purchasing then you can still purchase. Basically, you have to prove that you will be retailing the refrigerant and not using it yourself.

Conclusion

In the United States HFC refrigerants are going to be around for quite a while. The transition away from them is going to be a long and slow process. We are already beginning to see some signs of with automotive manufacturers voluntarily moving away from R-134a and opting for the HFO 1234yf. On top of that some states have announced they will be doing a full phase down and phase out of HFCs. (California and New York.) There are more states expected to announce similar plans.

Regardless of what happens, HFCs will be around for the next few decades, but as time moves on we will be seeing less and less of them until they are eventually as rare as an R-12 cylinder is today.

Thanks for reading,

Alec Johnson

RefrigerantHQ

Daikin, one of the largest air-conditioning manufacturing companies in the world, has launched an air-cooled scroll R-32 chiller. This is a world first and has caught the attention of many other manufacturers and distributors. The model, known as EWAT-B, has a cooling capacity range between eighty to seven-hundred kW, provides consumers with two efficiency choices (Gold/Silver), has three sound configurations, along with a whole host of other customization options. While Daikin is a Japanese based company the EWAT-B models are compliant with the European Union efficiency standards and will most likely be seen across Europe in the near future.

The reason this is such a big deal within the industry is due to the fact that this R-32 unit will be replacing currently existing R-410A applications. As you all know, across the globe there is an effort to reduce the Global Warming Potential, or GWP. Products with a high GWP, like refrigerants, directly contribute to Global Warming by trapping Greenhouse Gases in the atmosphere. Over the years alternatives have been invented and found for some of the most common HFC refrigerants on the market today. R-134a has R-1234yf and R-404A has R-452A. (Yes, there are other alternatives out there too.) The big question on everyone’s mind though is what will be doing with R-410A? It’s the elephant in the room so to speak.

Here in the United States we’ve only been really using R-410A for about ten years now and there are so many customers still using their older R-22 systems. The thought of switching everything over again is a headache most people don’t want to deal with. Over in Europe they have been dealing with R-410A for decades and they are now looking for a more environmentally friendly alternative refrigerant.

R-32

While there isn’t a preferred R-410A alternative, R-32 is quickly becoming the band-aid or patch for the short term solutions. A lot of you may already be familiar with R-32, or have at least heard of it. That is because R-32 is actually one part of the blended refrigerant known as R-410A. Yes, that’s right we’re going back to basics and away from blends, at least with this application.

R-32, also known by it’s chemical name of Difluromethane, is a HFC refrigerant very similar to the other refrigerants that we deal with day to day. The big reason that R-32 has been chosen as a proposed successor to 410A is due to it’s Global Warming Potential. R-410A has a GWP of two-thousand and eighty-eight. R-32 has a GWP of only six-hundred and seventy-five. That is a THIRD of the GWP that 410A has. So, by switching to an R-32 unit you are right away cutting your GWP emissions by two thirds. Along with the lower GWP R-32 is slightly more efficient then R-22 and R-410A. (Around ten percent)

Like with any refrigerant there are Pros and Cons. With R-32 the big con is that it’s safety rating set by ASRAE is A2. The A is no problem as it means that the refrigerant is non-toxic. What we need to look at though is the 2. This number stands for flammability and in this the 2 means ‘mildly flammable.’ In comparison, R-410A is rated at ‘No Flame Propagation Risk.’ So there’s the kicker. You get the lower impact to the environment but you also get to deal with a flammable refrigerant. Something slightly funny that I found when researching this article was that the European Union actually relaxes standards on charge limits for flammable refrigerants so that more R-32 usage could occur.

We believe that the timely relaxation of building codes and EN standards will be effective to remove the barriers for the transition to low-GWP refrigerants (such as R32) for residential air conditioners in the EU. – Source

One big thing to mention here folks. Yes, this is a flammable refrigerant, but like with anything if we are smart about it, go through proper training, and install correctly then there is nothing to worry about. All it takes is doing the job right. There is a reason R-290 (Propane) is used as a refrigerant. It’s very efficient and inexpensive. Yes, there is risk involved, but how is that Japan, Korea, and other countries are doing just fine with it?

The last con, and somewhat big, is that since R-32 is flammable it cannot be retrofitted into an existing R-410A application. R-32 is meant for a new machine. Also, please remember that R-32 is a not a long term solution when it comes to phasing down/phase out R-410A. With R-32 we cut the GWP number but we still have a very high GWP number. R-32 will be a bump in the road as we move no further towards more advanced, cleaner, and safer future refrigerants.

Conclusion

It seems that more and more we are leaning towards our neighbors in Asia for alternative refrigerant solutions. Hydrocarbons are used widespread in Japan, Korea, and China. These countries have been dealing with flammable refrigerants for a long time now and know what they are doing. It was no surprise to see Daikin come out with this new chiller. Daikin was one of the very first companies to come out with R-32 split systems back in 2012 and they also offer R-32 window and portable units within the United States. Since December of 2017 the Daikin company has sold around twelve million R-32 units across fifty countries. Maybe you’ve installed one of them already!

Daikin is leading the way into the future, the question now is who will follow? Will the United States began seeing more widespread R-32 usage? Or, will we hold onto our R-410A for as long as we can?

Thanks for reading,

Alec Johnson

RefrigerantHQ

Sources