What refrigerant can be mixed with R22?

The most commonly mixed refrigerants in the field are the replacements for R-22 — R-427A, R-438A, R-422D, and R-407C — which are often combined with the remaining R-22 in the system, said Maiorana.

Can R22 be mixed with other refrigerants?

Mixing R22 with R407C or any other refrigerant. According to the 609 EPA rule, mixing refrigerants is illegal and anybody caught doing so will be heavily fined. If your system is running on R22 most likely is using mineral oil to lubricate the compressor.

What refrigerant does R421A replace?

R-421A is a drop-in replacement for R22 systems. With this refrigerant there is no need to change the oil. Simply recover the R22 and recharge with R421A.

Can you mix R22 with R290?

R22 (called Freon) is widely used in air condition field because it has excellent physical property and thermal cycle ability in air condition units. But it will lead the damage of ozone layer and the effect of greenhouse. The article suggests substituting R22 with the mixed refrigerant of R290 and R152a.

What is the best replacement for R22?

R-407c
The best replacement for R-22 Freon is usually R-407c. It has a very low loss in capacity (0 – 5%) relative to R-22 and is less expensive than many other R-22 replacement refrigerants. If a system has R22 in it already you cannot use a replacement refrigerant to simply add to the R22.

What happens if you mix R22 and R134a?

R-22 systems are typically about 300 psi maximum. If you add R-22 to an R-134a system, you will not get close to the rated cooling capacity of the A/C system. In conclusion, do not mix R-22 with R-134a refrigerants, you will ruin the charge, and possibly seriously damage or destroy your A/C system.

Can R22 and R410A be mixed?

R-22 and R-410a are both refrigerants, true. They can both be used in air conditioners or heat pumps to cool your home during summer. You should never, ever try to mix them in the same system, or use them in a system not rated specifically for that kind of refrigerant.

Can I drop 407C on top of R22?

It is not recommended to drop R-407C into R-22 systems on top of the existing charge in cases of low refrigerant levels. A licensed professional should be contracted to completely remove the R-22 and as much of the mineral oil as possible.

What is a drop in replacement for R22?

R-421A is a drop-in replacement for R22 systems. With this refrigerant there is no need to change the oil.

What happens if you mix R22 and r134a?

What happens when you mix R22 with R410A?

Rather, the books I taught from say that each refrigerant reaches its own vapor pressure. If that’s so, then what R22 there is in the system can never evaporate under the higher suction pressure of R410a. It will just flood back to reduce the compressor life and will greatly reduce the system capacity. Do I have an answer?

Is it safe to use choice refrigerant r421a?

This last important fact makes R421a from Choice Refrigerant the safest product for any system that works with R22. Refrigerant Guys labs tested R421a on mid temp systems and found no particular problems.

What kind of refrigerant can you mix with R22?

There is no need to change the lubricant since, as with all the RS series of refrigerants, RS-44 is compatible with mineral, alkyl benzene and POE oils. Beside this, can you mix r22 with r134a?

What happens when you mix mineral oil with R22?

Understand this: The mineral oil in a compressor has a vapor pressure. Yet, when you introduce R22 to the mineral oil, the lower vapor pressure of the oil doesn’t lower the vapor pressure of the refrigerant. Yet, the company spokesperson assured me that mixing R410a and R22 combines their pressures and reaches a lower median.