With the phase-down of 410a refrigerant and the introduction of A2L refrigerants to the American market, many homeowners are left with questions on what's best for them long term when switching to these new systems. One of these questions is answered in this video on if whether it's okay to add R32 refrigerant to their existing 410a system? Joshua Griffin goes through concerns, safety, and reasons why you may want to follow manufacturer guidelines before performing such a task. Follow the advice in this video before making a mistake that could cost you big time!
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Chapters
0:00 Intro: Refrigerants replacing 410a
0:35 Comparison to 410a
1:44 Can you put R32 in 410a systems?
2:22 Warranty Guidelines
3:18 Discharge Temperature
4:03 Components to be reused
4:36 EPA Regulations
5:06 In summary
5:42 Outro
#hvac #refrigerants #410 #r32

In today's video, we're going to talk about the new A2o refrigerants that are coming out that are replacing 410A refrigerant here in the U.S During the making of this video, 410A Refrigerant has begun the phase down process and some states have already approved these new A2l refrigerants. Now currently, the two that were being told that are going to replace 410A here in the US are R32 and R454b And one of the questions that you guys have been asking in our comments: section: A Lot is with these new refrigerants that are coming out. how do they compare to 410A Are the pressure significantly different and I'm being told I have not personally been able to lay hands on either one of these refrigerants. the state I live in has not approved these refrigerants yet and so I have not personally laid hands on them.

But I've been told by other folks that have R32 for example, has been used for years upon years in other countries and I'm being told that the pressures are similar, that they're somewhat close, that there's not a significant difference. Years ago, when we phased out R22, we saw a significant increase in the pressures, the working pressures of the refrigerant to be able to continue to get the same temperatures, the Delta, T and all the things that needs to work properly for the system to be able to remove heat from the home. We saw a significant increase in pressures going from R22 to R410a. But the thing is, now that we're going to these new A2l refrigerants, we're being told that the pressures are not significantly different, that they're at least somewhat close.

There's not going to be hundreds of pounds of fresher added or reduced. And so the comment that we keep getting. we did a video on R32 specifically recently and one of the comments that seems to keep popping up is hey, can I just put R32 in 410A Some of you guys have done your homework and you know that R410a is actually compressed prize of two separate refrigerants, one of them being R32 So can I put R32 in my 410A system? Will it work? Short answer is I don't know I don't know what would happen specifically would it work if you were to put it in there? but I think I can point out a few things that you should know before you were to do something like that. First of all, R32 Is Not An approved drop-in refrigerant replacement refrigerant for 410A refrigerant and so because of that, if the system were say under warranty and you were to do something like that, it would obviously void the warranty.

In fact, I'll even go one step further and say most manufacturers if you were to put any refrigerant even if it is an approved drop-in or replacement refrigerant for that original intended refrigerant to be replaced, if you were to replace it with any refrigerant approved or not approved, it's most likely go going to avoid the warranties I Just want to point that out very quickly if you're watching this video and you're thinking about doing something like that, adding anything to that system, refrigerant, oils, or lubricants leak, seal. Anything that you add to that system that the manufacturer has not approved could void your warranty next. Although the pressures are very similar, there's not a significant increase or decrease in the working pressures of R32 the temperature. The discharge temperature is significantly higher, so this will increase the wear and tear on things like the compressor If it's not intended to use that much heat and the compressor is getting hotter than it was originally intended.
compressors get hot enough right if you're using the refrigerant you're supposed to use, and then you go putting in refrigerants that are not intended to be used in that system and you are increasing the wear and tear on that system. You are making certain components hotter than they were intended to operate at, and you can have significant breakdowns just because you were to switch the refrigerant. But I will say that when you're replacing 410A with these new A2o refrigerants, we are being told that you are going to be able to reuse things like the line sets. That the line sets do not necessarily need to be replaced, that you can as long as you do what you're supposed to, such as flushing them if you have any acidity on that line from a compressor breakdown or something like that.

But as long as you're taking care of those line sets, pressure testing them, pulling a good vacuum, and all the things you're supposed to do, then you will be able to reuse the line sets and things like that. Now we've talked about that in other videos, but the last thing I will just point out if you are just somebody that likes to experiment, maybe you're a little more handy than the average homeowner, or maybe you are some sort of professional and you just want to see what it'll do, see if it'll operate or whatever I Just want to point out one last thing and that is you may be breaking EPA regulations when you are put building refrigerant that is not designed to be in that system in that system and that can come with a whole nother set of challenges. So ultimately I think the answer to the question Just in summary, if you were to ask me straight out, can I replace 410A and I put R32 in the same system and the answer in short is no, you should not do that. You could be causing yourself a lot of headaches and the little bit of money that you might be saving you might be creating more headaches and possibly more investment in the future just because you.

we're just trying to save a few bucks and put the wrong refrigerant in there I would not do it I wouldn't even try it I wouldn't even experiment with it if it were me and I would just be very careful doing things like that I Hope that helps if you are in the market for heating and air system and you're looking at these new refrigerants or still looking at 410A Let us know about that. please comment down below I'd love to hear your thoughts and what you're going through with while you're choosing making this big decision. Thanks for watching! Please hit that subscribe subscribe button. We'll see you next time.
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10 thoughts on “Can you put r32 in 410 systems? what will happen?”
  1. Avataaar/Circle Created with python_avatars bryan vicquery says:

    My home I purchased few months ago, has 2 wall units, both are r32 refrigerant. Im going to replace with splits eventually but ill see how well they work.

  2. Avataaar/Circle Created with python_avatars Garth Clark says:

    I'm DIY and ran across some data that is not clear about motor bearings. In one brand I found condesnser motor specs to show various bearing types. One in particular of the few typical types such as sleeve or ball bearing, SAB bearings. I looked them up and still cannot find what they are, sleeve or ball bearing design. Does anyone know what a SAB bearing is and if the design is longer lasting as the ball bearing types? Service area Nepean??

  3. Avataaar/Circle Created with python_avatars Sean Griffon says:

    Why are we going to these so called mildly flamable refrigerents? Heck R 290 is straight propane used in manily commercial reach in fridges.

  4. Avataaar/Circle Created with python_avatars The Outspoken Engineer says:

    A few facts………………………. R410A WORKS IN R32- units R32 WORKS IN R410A…….. R32 has a slightly higher discharge…….. Only benefits In the U.K of R32 a 5kw or 7kw unit uses smaller pipework

    R32 is an A2L in europe but not in japan……….. R32 and R410A is almost the same gas……………………………..

    Of course its on paper illegal.. But the above is true…

    hope your good sir

  5. Avataaar/Circle Created with python_avatars bob boscarato says:

    Joshua Griffin: As always you gave good advise!

  6. Avataaar/Circle Created with python_avatars RCin Fla says:

    R32 in the condenser temp range of 100 to 140 degs F is 375 – 557 psig
    R410a in the condenser temp range of 100 to 140 degs F is 343 – 542 psig.

    R32 in the evaporator temp range of 35 to 55 degs F is 110-160 psig.
    R410a in the evaporator temp range of 35 to 55 degs F is 109-157 psig

    Enthalpy [BTU/lb] is higher for R32 (good thing) by about 20%. This mostly due to slightly greater gas density of R32.

    R410a TXV's should operate okay with R32

    The higher high side pressure is main objection to replacing with R32. Any manf. warranty will go out the window if you substitute R32. Because of slightly greater density of R32, the condenser will likely be more efficient at giving up heat, keeping head pressure on compressor down. Subcooling temp should be set slightly lower. Places like Arizona in summertime is dicey on maximum head pressure.

    Don't know how much the higher density will impact compressor as to damaging reed valves. If I had no alternative, I would likely put in R32 if unit uses a scroll compressor, but again no more warranty if you do.

    Inverters VFD systems are likely more forgiving as they already limit compressor head pressure and allow low superheat conditions. They should take about 15-20% less R32 charge weight than R410a.

    Perhaps some manufacturers may give updated numbers for subcooling and charge weight to approve R32 substitution, but more likely they want to sell you a new unit.

  7. Avataaar/Circle Created with python_avatars Doug B says:

    All BS Are you in Barrhaven ?

  8. Avataaar/Circle Created with python_avatars Bobman P says:

    cool

  9. Avataaar/Circle Created with python_avatars Bruce Elias says:

    Josh your video keeps skipping and going repeating again itself again I'm not sure why

  10. Avataaar/Circle Created with python_avatars Bruce Elias says:

    Hi Josh
    How are you bro?

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