What is RS44b ( R453a ) Refrigerant and Should You Use It?
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- Опубліковано 6 січ 2025
- HVAC Shop Talk podcast represents the blue collar boys and girls in the skilled trades, especially HVAC. In this video Zack Psioda from HVAC Shop Talk talks about RS44b (r453a)
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You can use 407c without Poe oil without issues !!
Do any of the r22 imposters add poe oil to the mix?
Some contractors top off with alternate refrigerants, don't care about glide, and fractionation, besides it's illegal, I've done several 407 c with the additional %poly and doing great.
I've got 407c for several years now , added the Poe, working fine.
Do you have to evacuate the system to install the replacement
An interesting video, but it's now over 3 years old and that chart with the colored dots was either outdated or incomplete ... it did not include RS-44 or RS-44b. Obviously there are so many old R22 systems out there (I have two!), so hopefully the technology will catch up so that we don't have to replace our a/c units if they are working OK. However, A/C techs have a vested interest in persuading you that you need an new/updated system.
I have a R22 York system. I can swap the expander and compressor out for 410a components to make a ez swap. Is doing this swap better than say keeping what I have and using 407c or RS44b ?
Rich Foster your coil from your condenser and air handler will be too small for the 410a
@@vigons90 Too small? How so? York has direct replacement coil for both, in a 5 ton setup. So why would coil size be an issue in 410a?
never tried it RS44B but as you we have use 407 C many many time on refer retrofits over the past 5 years most still running ...after successful R 22 leak repairs & or esp new R 22 compressor change outs come w/ POE but otherwise sometime no oil change esp if the compressor is much lower that the evap so far no problems ......for oil return on the suction line ....Ive shy ed away for doing this to any roof top split systems w/ evap below of cource without adding 15 - 20 % POE charge or ....haven't used an product called super change shot yet > in prior to recharging 407C to help mix the 2 oils > become miss-able ??? / lot reviews says it works very well ??? so we may will see one day soon more likely .
thank you for sharing that informative video partner love to keep updated!!!
New to this topic but here is some food for thought. We have a pretty big supplier here that has 7 huge warehouses and they stock zero jugs of RS44B. They stock over 200 jugs of R407C.
Any thoughts about what that says?
This is a sharp dude. Smart guy well explained
give the EPA GVT the finger and start producing r22 and be done
any update on rs44b testing perfomance as oppossed to 407c or 421a. i did some conversions with it and so far so good. did not put any poe oil. The COP seems close to r22.
Glad to hear that it worked for you! Much better than having to replace a working system.
We are retrofitting all the systems in the military (Army) with Refrigerant (R-438A) M099. And Europe (EU) have a more strict policy than the EPA. I work in Europe, so I know the EU policies very well.Recover, replace filter drier, pull a vacuum, and charge the system with R-438A.
You cant mix refrigerants but remember 407 and 44 are mixes. My test show that another component in the mix (R22) is a nice addition to 407 to help with the moving of mineral oil. Thus no addition of POE needed. I suspect RS44b will perform the same since its is similar in makeup to 407c. And you can follow a PT chart for 407c when charging as we have not noted any deviance from its values with 22 in the mix.
It said "inadvertently", they're not telling you to mix anything. This is likely to silence fears of trace amounts of old refrigerant being left behind and mixing with the retro-fit.
Any results on the rs44b testing
Very cool video , lot of important info , thanks man
You never really hit on the rs44b stats to be inform people you informed us about all on other refrigerants
Suppossedly this is a very popular refrigerant and people buying a lot but it hasn't been around a long as 407c. From all the data provided this refrigerant seems to be good but out in the field and in high ambient it's still to be tested and proved.
Been in my air conditioning unit for a little over a month and my trailer has no shade tree just sun.It seems to run fine so far.
another great video keep it up really interesting stuff
please excuse me if you already answered my question I did not watch the complete video. what is the price? the price could be the deal maker or the deal-breaker?
P/T Chart for RS44b?
www.globalindustrial.com/site/images/Comstar15/292676-Spec-Sheet.pdf
😊 glide out the planet I'm assuming,and fractionation is the question.
I use 407c no problem so far.
Don't replace your entire systems with costs of tens of thousands, if they are working ok... find the right refrigerant for it - don't listen to the stupid technicians who come to your house, and give you a few fancy works they learned in 2 weeks training course, like "sub-cooling" or Supermassive blackholes inside your compressor that will eat all the oil from your evaporator, leading to your the protective layers of yours evaporator inside the house to turn into a big giant bear that will devour your children - because they want to make several THOUSANDS of Dollars from you for no reason, and they turn around, take out your clean R-22 freon in their recovery jars for FREE and use it to charge other people's systems for $600 or more for 2 lbs. Their talks are all non-sense about replacing the entire unit.. don't listen to them ..the decision is yours... do your homework, understand it.. it is worth it that you keep your $10,000 in your bank account or off your credit cards and spend $300 refilling it with the right substitute freon.
Most tecs ( not all) don't care about glide and fractionation, and epa laws, that's what I'm seeing,
A lot do not you are right
I have never seen the Freon police. Lol- also never heard of anyone caught venting or mixing refrigerants lol. The company I work for drops 407c on top of r22 and no call backs in 7 years. Personally in my personal system I evacuated the system and pull a vacuum to 250 microns and added no oil to the charge. Many people don’t realize refrigerant comes with oil in it straight from the tank. My Lindsey is about 15-18 feet and have no issues. I recently evacuated a system and used rs44b and achieved the same results of 407c. So all this extra no customer is gonna go for some high ass bill when it can be done cheaper and I don’t have to go back with my method. I just make sure I’m not using a txv evaporator coil. This is for educational purposes and not for debate. Maybe it clears the mind of paranoid techs. Have a nice day
Had old Chrysler added propane 12a then 134 then recovered 12 then 134 over 5 years never pumped ALWAYS worked .junked .
Have you actually done any RS-44b conversions? This video offers some good information, but it seems to be a lot of "in my opinion" and you seem to be refuting specs and claims. I have seen RS-44b videos by other a/c techs, who have done conversions for several years, without seeing any problems or reduced cooling efficiency. I'm not refuting your claims/concerns, but would like to hear of actual conversions that either turned out good ... or bad. Many thanks.
Gone to try this replacement myself on my own central air unit which is r22.
It is working just fine in my system.
Hi Steve Berry my understand RS-44b should be charge as a liquid my question is what side should charge from low or high side pipe?
lowside equals dewpoint which is superheat.Highside equals bubblepoint which is subcooling.
Suction superheat example 50f suction line temp minus 40f evap. temp equals 10f superheat/dewpoint.Subcooling example130f saturated liquid temp minus 120f liquid line temp equals10f subcooling/bubblepoint
fixed orfice superheat/dewpoint
txv subcooling/bubblepoint
I know it works I've been using it in my a/c with no problems. I replaced my outdoor unit last year and put in rs44 so I didn't have to replace my evaporator. I live in Phoenix and my house is nice and cool. I have a 21 degree split which I never got with r22. Who cares what's in it. It's in a closed system.
Were you able to find a dry charge unit last year?
What was the split difference? is it better than r22?
What was the split difference? is it better than r22?
What was the split difference? is it better than r22?
I like to check the Safety data sheets, you can see what gas blends they are.
mostly the same composition, with what appears to be gasses that are "solvents" to other oils, go figure :)
by the way, HFC 227 is used as fire suppressant and aerosol propellant in asthma inhalers and other things.
it's likely in there because of the "butane and isopentane" which is what I coined as "solvents" to the other oils..
125 is also used to minimize the flammability of R32
I like your presentation and general ideas but most of your chemistry is entirely wrong. Just because a chemical name has a hydrocarbon as part of the name does not mean they have properties of the hydrocarbon. No different than Sodium and Chlorine combine to form salt and both elements are deadly.
Which one is the best one? There can only be one!
R22 is the Best
Pressures too low. Would not work well at all in a system designed for R22
@@justinbirkhofer7220 Experience says otherwise
Joe why don't you buy a jug and try out a retrofit and see how it works.
+RedCoach Inn Ralph is trying some today, we will have to talk about it.
I think its ok biggest advantage over 407c is no need to add poe. That way theyre marketing it is to indirectly tell techs to top off r22 system with this stuff due to mass and similar density.