No.
No
Is r-22 Freon compatible with r-134a freon?
Not unless you like the idea of destroying your AC system.
Your AC won't work any better than it did before. Two very different refrigerants, which will not blend, with different superheat points and system pressures. Not to mention that R22 won't carry PAG oil through the system as effectively as 134a, meaning you could end up starving your compressor of lubricating oil, thus burning it out.
The name.
No. the pressure are different, r22 runs at a fairly low pressure and you shouldn't be worried about blowing your gauges, but you won't be able to determine your super-heat or sub-cooling. for a about $100cdn you can buy the right gauges.
can not be used with each other
Subtract one by other as diff betw 2 and 3 3-2=1
The difference between brands of 134a refrigerant are largely in their quality control and price. In order to keep with standards, all are required to sell compatible refrigerant.
R-421A is an R22 alternative refrigerant. It is licensed under the Choice brand name ( Choice R-421A). It is a blend of 58%/42% R-125 and R-134a. It is a non-ozone depleting refrigerant, and the only 2-component refrigerant blend to replace R22. For more information, visit www.rmsgas.com.
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