The Truth About The New R32 VS R410A Heat Pump Air Conditioner (4k)

Join Steve Nagy and Chris Cherry in this informative video as they explore the key differences between the phasing-out R410A systems and the new R32 Heat Pump Air Conditioner systems.
Please remember, this video is intended solely for educational purposes. Daikin did not supply any products or offer compensation for this review.
The new R32 system demonstrates enhanced quality and efficiency. With a lower Global Warming Potential (GWP), R32 is a more environmentally friendly refrigerant. Both R32 and R454B refrigerants are classified as A2L (mildly flammable), so we encourage all HVAC technicians to adhere to EPA guidelines and regulations when handling these refrigerants to ensure safety.

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[andrewsullens]

I recently installed an R-32 mini split (24k btu) in my finished basement to replace an R-410a unit. I currently live in the southeast USA. When it is 95°F outside with a humidity of 70+, the vent temperature was 44°F on R-410a and now 36°F on R-32. The R-410a system used about 915 watts running and the new system uses only 509 watts.
The new R-32 unit is so efficient that I have it running on just 3 solar panels most of the time. Also, I have an 8 year old window AC in my garage that uses R-32 and have never had an issue.
The flammability of A2L can't possibly be more than my natural gas lines running all over my home for the water heaters, central furnace and cooktop.

[spazzman]

I'm not sure if my cheap units are Daikin or Midea built, but they have R32 refrigerants. I bought and installed 2 12k 120V systems for my fairly open 1200 sq/ft. home. Winter time had 4 days where it didn't get above 15f, and summer had a few days of 108f. House temp has remained a constant 69f. The best project I've ever undertaken.

[Hoppa]

i filled up my VRV with R454b which was factory charged with 410A... All good no issues here. Machine running even more smooth. You should try this one time on the channel.

[allenazar]

My R22 is still running from 1967. Its amazing and crazy cold.

[Henry-lo]

Thanks for the tips my fellow HVAC technicians ❤❤❤

[acessford]

Hey Chris! Glad to see you on here!!!!

[tinman]

When I started in the trade, R 22 was 30 bucks a 30lb bottle

[bobshanery]

"More efficient and more reliable"

Where have you guys been past 50 years? Older machines used to run for 30 years easily 20. Today "new" systems break down in 5-10 years needing parts.. Often expensive parts. Things are not made better at all. They are made to fail. This is common with nearly everything we buy today. All made to be replaced. Manufactures did not forget how to make quality products they just refuse. Some handful of companies own nearly everything.

[dusdnd]

I think the only notable things on the new unit... it is R-32... and the fan blade. The other changes are simply incremental engineering changes that could have happened on a revised R-410a unit. I do think that 15" of overlapped coil is rather odd. Why not more? Why not less? I suspect the driving concern is storing it in a warehouse and shipping; that allows the unit to be slightly smaller which helps in those circumstances. It really doesn't matter for installation.

Now the fan blade. That is cool. There are have been two major advances in propellers in the past few decades and I was hoping that they would make their way to our systems:

1. Toroidal blades: this is the innovation I really want to see. they're much more efficient and even quieter, by far.
2. Serrated trailing edge: this is mostly considered a way to make the movement quieter, but noise is the expression of energy, so the quieter it is, the more efficient it is.

I'd like to see both.

EDIT: So, I replaced my old AC with an ASHP last year when it died. I am really happy with the system. It was just a drop in replacement... I kept my gas furnace as the air handler and for backup heat. A significant contributing factor to the failure of the AC was the zoning system and a failed damper... and a failed temperature sensor in the zoning board. So, I have been to get rid of all of that and just get a 2nd unit for the upstairs.

I was initially rather concerned about R-32. I still have some reservations, but I think I am ready for one. I was going to get an identical R-410a ASHP, but with an air handler, since it would be net new. Since it will be for upstairs, I think R-32 makes a lot of sense. The biggest reservation I have about R-32, still, is having it next to my gas burner for the furnace. Since I won't have this for the upstairs unit, R-32 seems like a no brainer. I am in an area where we get extended periods of below zero (fahrenheit) temperatures in late January and early February, so backup heat is super important to me, even though my ASHP seemed to work fine (I had the thermostat set to burn gas when it was below 5F overnight so I didn't wake up to a freezing house in the event that I somehow messed with my install... it was fine). Perhaps my concerns will prove unwarranted with two separate units and the improved performance of R-32.

[jackmen]

Today I did my first R32 mini split system at my company here in Southern California. R410A is officially over. We aren’t going to be buying any more inverters with 410A

[curtisramsey]

I'm so glad you did this video I learned alot

[BleedingEdgeHVACR]

The HVAC industry wasn’t ready for A2Ls when it launched outside the US, and it still isn’t ready today, the only circumstance when the refrigerants flammability is an issue is when techs aren’t using key best practices when brazing including;
recovering into a vacuum, purging with nitrogen after recovering, CUTTING OUT ALL COMPONENTS NOT SWEATING OUT and flowing nitrogen when actively brazing.

The problem is 99% of Techs aren’t doing these practices, which is going to result in igniting the refrigerant when brazing under some circumstances.

Otherwise A2L refrigerants like R32 and R454B are fine.

[zanashiakallis]

Those guys are the best. I love the show and I always learn something new. I’m still somewhat new to hvac but no one is doing better reviews than them. There are several channels out there and all they do is talking. While they’re sharing valuable info, they lack to show the equipments.

[sophiegrisom]

The whole flammability concern is absurd. Many houses have a natural gas meter near the compressor, but I guess the EPA never noticed those. I installed a 1.5 ton Della mini-split SEER 22 last Spring which came charged with R32. Made by Medea, like most Chinese brands. I bought to better use my solar energy, just heating and cooling the living areas, but the little guy cooled my whole 2200 ft2 house this summer, even on 110 F days. Good since my central AC died right after I got it running.

[gimmedaloottheloot]

Love to see more mini split videos. Especially a comparison of popular mini splits.

[danielwymer]

It runs on high pressure just like 410a so you’re still going to have leaky coils, only differences the new refrigerant cost three times as much, in Europe they went with propane which is low pressure just like the old R22, And the propane air conditioners have sensors, so if it detects leaking propane, it shuts the system down

[erbterb]

We need larger fans for more efficient air flow. More air per kW.
We need stacked pump mediums. One medium in the circuit inside/outside and a second medium in an inside/inside configuration. It is heat pumps all the way from absolute zero to the heat of the sun.

[Anton-xdzd]

I hope you guys will not engage reviewing and promoting cheap stuff like some others. I mean the “water hose on the condenser” lol so far so good keep the good stuff coming.

[jorgeuribe]

Tell me you’ve never worked on hvac without telling me you’ve never worked on hvac

[carstencroessmann]

So many people are afraid of a flammable Refrigerant. We have Gass or LPG in our cars sitting on a tank full of it. What should happen on a Mini Split for instance? First you need the right Ratio Gas and Air to get it ignited, second you need a spark, I doubt that there is enough gas for an explosion wants you have a tiny leak. The indoor Airhandler got only a fan and motors for the wings all controlled by a magnetic field no spark. Only the outside unit could produce a spark inside the compressor once the windings will burn or shorten but because it's a hermetically sealed system with no air present nothing will happen. Correct me if I'm wrong. I swapped a lot of R134a to LPG or pure Propan systems still running needs less Amps got more output. Rgds from Germany