Can you mix r22 and r134a

Recover the R22 change the drier pull a good deep vac and weight in the correct amount of Ra. After the system is running check the compressor amps. The way I read the original post it appears he is referring to adding R22 to a system which already has RA in it I would never do anything like that on purpose that is. A long time ago on a really slamming day you know call after call I accidently grabbed my sun faded 22 jug and went to work on a self-contained unit with a tin can compressor lasted about 1 min.

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If you would like to submit a link or an article or other related info to the EF. Please read this Valves, Regulators, Filters, Etc. All times are GMT The time now is AM. The best replacement for Freon R22 is usually Rc. If a system already contains R22, new refrigerant cannot be used to supply R If your air conditioner is over 10 years old, it probably uses R Well, it turns out that R22 is very dangerous for the environment.

For this reason, it has been phased out in accordance with EPA regulations. R22 can no longer be imported or manufactured in the USA as of January Personally, I would never buy anything from a plumbing shop because they always mark the price. Plumbing companies also mark prices, but less. For the best prices, it is best to shop online. If your AC unit is over 8 years old, it is usually not worth converting and you just need to replace the entire R22 unit with an RA unit.

If so, the R22 in the system can never evaporate under the higher suction pressure of Ra. It only flows back to shorten compressor life and greatly reduce system capacity. No you can not. Mixed refrigerants can even lead to increased system pressures and temperatures, resulting in inefficient compressor cooling, reduced cooling, possible compressor damage, dosing unit failure, and insufficient compressor oil supply. RS44b is compatible with all materials commonly used in R22 pre-filled cooling systems.

In general, materials compatible with RS44b can be used with R The ban does not oblige the replacement of a functioning air conditioning system or an R22 refrigerant heat pump system. If a system already contains R22, new refrigerant cannot be used to add R If your air conditioner is over 10 years old, it is likely to use R R22 can no longer be imported or manufactured in the US as of January To find out what type of refrigerant the air conditioner is using, look at the label on the external compressor.

To your AC System. If your system is running on R22 most likely is using mineral oil to lubricate the compressor. If you mix RC with R22 inside your system the molecule of the HFC RC gas will not link with the oil and in just few months of operation you will have a "sludge" like lubricant formation inside the circuit. No need to say this will result in catastrophic failure of the compressor and most likely you'll need to replace the whole unit. It is still hot, but I can hold my hand on it for at least 5 seconds without getting burned.

Same with the discharge tube. I have no way of testing it, but I would think that power usage would also be lower. Besides the obvious oil issue, what is the disadvantage to running the system this way? The pressures are MUCH lower, the system runs cooler and even seems quieter and it seems like it vibrates much less, but that makes no sense to me. I have no idea about longevity as I just started using Ra in this system, but it seems like it works great.

What are your thoughts? Re: I refilled an R22 window AC with Ra and this is what happened 'filled it with compressed air' Originally Posted by frank. Re: I refilled an R22 window AC with Ra and this is what happened OK to experiment,but in my opinion the system will soon fail because of the oil issue how long it will take not sure but it will fail, unless your lucky?

Originally Posted by cadwaladr. OK to experiment,but in my opinion the system will soon fail because of the oil issue how long it will take not sure but it will fail, unless your lucky?

What do you have to lose. You paid a lot less for a. I think it will last another 10 yrs lol. From my lips to gods ears. Re: I refilled an R22 window AC with Ra and this is what happened I am not sure what kind of oil the system has in it now.