When did R12 change R134?
Vehicles manufactured before 1994 used R12 for air conditioning. Vehicles older than 1994 started using R134A instead of R12. So what if you have a car that was made in 1994 or even earlier? Well, if you have a car that old, you have two options.
Why did R134a replace R12?
R134a systems work at higher discharge-side pressures than R12 systems, which could lead to compressor seals leaks. Additionally, since R134a is composed of much smaller molecules, it has a greater chance of leaking from an R12 system.
When to change refrigerant from R12 to R134a?
Now in order to abide by the law, the cars manufactured before 1995 needed to have a refrigerant conversion from R12 to R134a, which also led to further complexities. As R12 used a different oil that was not fit to be used with R134a, the replacement was not that simple.
What can the R134a air conditioner be used for?
The R134A is now commonly used in the air conditioning systems in vehicles, but it can also be used in fridges, freezers and other coolers similar to the applications of the R12. The R134A is sometimes also used for cooling overclocked computer systems.
How can I tell if my car is a R134a?
To tell if you have R134a, start by considering the year of your vehicle. If you have a vehicle manufactured after 1995, then you should have R134a. If your vehicle is older you may still have R134a; it just depends on if it has been converted.
What’s the difference between R12 and R12 freon?
They may sound just like similar part numbers, but there are major differences between them. For starters, R12 was the one that is on older vehicles. It goes by the brand name of Freon, and it earned a bad reputation when scientists found out that it was responsible for helping to deplete the ozone layer.
When did they start using R-134a refrigerant?
R-134a first began to see widespread usage in 1992 and took over the automotive market entirely in 1994. If you have a vehicle from 1994 or newer your air conditioning unit takes R-134a. It has been the standard automotive refrigerant for over twenty years.
Which is the best R134a Freon conversion chart?
R134a refrigerant charge jas oceania refrigerant pressure temperature chart r407c r410a r134a r404a freon r600 determining superheat subcooling Save my name, email, and website in this browser for the next time I comment. You are commenting using your WordPress.com account.
What’s the difference between R12 and R134a air conditioning?
Assorted O-Rings manufactured for R134a A/C systems. R134a refrigerant O-rings are of a different composition than those for R12 systems. R-12 O-rings are black in color. R-134a O-rings are blue or green in color. Ester oil charge for lubrication (amount varies by model year).
When did they stop using R12 refrigerants in cars?
R12 is still used in some older cars, especially those that have not been converted to a more modern and environmentally safer system. R12 refrigerants were used before 1995. So older vehicles all had this as a standard fixture if the had air conditioning units.