How do I convert R12 to R134a?

Here’s how to convert R12 to R134a with the factory method

  1. Discharge the R12 and recover the R12 for recycling.
  2. Add recommended amount of PAG or Ester oil.
  3. Swap out the high and low pressure switches.
  4. Attach high and low port adapters.

Can you top off R12 with R134a?

No. Federal law prohibits topping off an R12 system with a different refrigerant. Your options are to locate some R12, however you must be certified to purchase, and add it with an R-12 recharge hose.

Can you fill a R12 compressor with R134a?

Mixing R12 and R-134a refrigerants is illegal, and even if you previously bleed out the R12, the system has to be adjusted to use R-134a, or it will cause leaks, copper corrosion, and lack the lubrication required for optimal operation.

What happens if you put R134a in a R12 system?

The molecule size of R134a is smaller than that of R12, so there was concern that R134a could leak out through the hoses and flare fittings that R12 systems used. R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak.

Is R12 Freon still available?

It is illegal to manufacture new R12, but it is not illegal to sell or use R12. And many of the cylinders and cans of Freon R-12 sold for decades throughout the United States are still around.

How much does it cost to convert R12 to R134a?

If you have a professional convert the R12 to R134a, you may spend about $250 for the entire service. However, this is much more cost-effective than replacing the entire air conditioning system. If you were thinking about getting an R134a system installed, your cost would be around $2,000 to $4,000.

Is R12 colder than R134a?

R12 can blow 6 to 7 degrees cooler than R134a and is 15% more efficient. R134a systems require larger condensers and higher operating pressures than R12 systems because R134a doesn’t have as high of a heat transfer rate as R12 (which has a heavier molecular size than R134a).

Is there a drop in replacement for R12?

RS-24 is a “Drop-in” alternative for R12 which also provides a long term solution at the same time. It provides, therefore, a one change solution to the replacement of R12 at minimal expense.

Is there a replacement for R12?

There are three replacement refrigerant options for R12 systems: R134a, R401a, R401b. R134a is regarded, by manufacturers and adherents to the Montreal Protocols alike, as the best replacement refrigerant.

How can I tell if I have R12 or R134A?

when new,it was r12.if it’s been changed over,look at the hi and low side ports.see if 134a adapters are screwed down on top of the r12 fitting ports.they will be larger.i can’t see your car,take it to Autozone and they will be able to tell you if you can’t tell.

How to put R134 into a R12 system?

Recover all R12 and dispose of it correctly.

  • Remove all traces of the mineral oil.
  • Re-charge the lubricant wit a polyol ester lubricant.
  • Replace the expansion device with the appropriate device.
  • Evacuate the system and replace the filter drier with a compatible drier.
  • Re-charge with R134a to the correct charge by superheat,subcooling and sight glass.
  • How to convert R12 to R134a with 7 quick steps?

    AC flush kit

  • Complete HNBR O-ring kit for your vehicle
  • R134a retrofit kit with R-134a port adapters,oi,port caps and retrofit label
  • R134a pressure switches
  • R134a orifice tube
  • New barrier style hoses for pre-1990’s vehicle
  • New R134a accumulator/dryer
  • What do I need to convert from R12 to R134a?

    Discharge the R12 and recover the R12 for recycling.

  • Flush evaporator and condenser with AC flush kit to remove mineral oil
  • Flush AC high pressure and suction lines to remove mineral oil
  • Empty oil from compressor
  • Add specified Ester or PAG oil in the proper viscosity to the compressor,condenser and evaporator.