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Take the R12 charge specification and multiply it by 0.9. Then, subtract that result by 0.25 pounds to get the proper amount of R134a charge.

How do I convert R12 to R134a? Take the R12 charge specification and multiply it by 0.9. Then, subtract that result by 0.25 pounds to get the proper amount of R134a charge.

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.

Can I replace R12 with R134a?

R134a is a safer replacement for R12. Another major difference is the type of oil both refrigerators require. R12 is compatible with mineral oil, and most R12 systems use this. R134a uses Polyalkylene Glycol (PAG) oil.

How do you tell if you have R12 or 134a?

To tell if it has been converted you can look for a sticker on the unit under the hood, which would indicate that it is R134a. And you can also look for R134a adapters, which would be located on the charge parts.

What happens if you put R12 in a R134a system?

R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Bottom line, R134a simply doesn’t cool as well as R12. … R12 systems used mineral oil, but unfortunately mineral oil doesn’t dissolve in R134a. So, along with R134a came a new oil: Polyalkylene Glycol—or PAG oil.

What year did Freon change to 134a?

CFC-12: an Ozone-Depleting Refrigerant Automobile manufacturers began to transition to the non-ozone depleting refrigerant, HFC-134a, with 1992 model year vehicles. By the 1995 model year, all new vehicles sold in the United States with air conditioners used HFC-134a refrigerant.

What year did cars stop using Freon?

For many years, R12 was the automotive refrigerant standard. It was effective and cheap. However, scientists quickly discovered its sinister secret: It was partially responsible for the rapidly-depleting ozone layer. In 1994, it was banned from all new cars sold in the US.

What is the best R134a refrigerant?

Best – A/C PRO ACP-100 Professional Formula R-134a The A/C Pro ACP-100 is the best recharge product out there today. It is a bit pricier than the others that are out there but there are some benefits to this price increase. This product is an all in one.

What do you do prior to introducing recovered refrigerant to a motor vehicle?

Before you begin transferring recycled refrigerant into an empty storage cylinder, in order to remove non- condensable gases, the cylinder must be evacuated to at least 27 in. HG of vacuum. Refillable cylinders must be UL or DOT approved and must be hydrostacally tested and date stamped every five years.

Can you mix refrigerants?

In short, the answer is, “No!” Automotive refrigerants are volatile compounds that can have a negative effect on the environment. Combining them can have adverse effects, and cause damage to your car’s A/C system.

Can shops mix refrigerants?

The short-long-only answer is no, never. There are many reasons why it’s impractical, illegal, and not economical for a homeowner to mix refrigerant types. CFC-type refrigerants like R-22 – the most popular in the United States by far – are a single type of refrigerant. CFC stands for chlorofluorocarbons.

Do you need EPA certification for r134a?

How Can I Get Certified for R-134a? In order to be able to handle these super gases you need to be section 609 certified with the Environmental Protection Agency. This section 609 comes straight from the Clean Air Act of 1990. Today there are more than one million people certified under this section 609.

Can anybody buy refrigerant?

Regardless of what refrigerant it takes you are unfortunately not able to purchase it without being licensed and certified with the Environmental Protection Agency. If your air conditioner does take Freon, or R-22, then you will need to be Section 608 Clean Air Act certified with the EPA.

What can happen if I don’t have refrigerant certification?

Selling refrigerant to an individual or company that is not complying with this requirement could result in enforcement action against you or your company. The seller of the refrigerant is responsible for verifying that the buyer either 1) is a certified technician, or 2) employs a certified technician.

Who can purchase R-134a refrigerant?

Refrigerant can only be sold to technicians certified under the Section 608 or Section 609 technician certification programs, where individuals may only purchase refrigerant consistent with the appliances covered by their certification.

Is R134 and R134a the same?

R134 and R134a have same chemical formula and atomic weight but different chemical structures. R134 has NBP of about -19 C whereas R134a has a NBP of about -26C. And dont use capital ‘A’ in R134a …. “A” denotes that the refrigerant is non -azeotropic.

How much does R134 cost?

$150 / 30lb cylinder = $5.00 per pound. There you have it folks, $5.00 for one pound of R-134a refrigerant.

How many cans of R134a do I need?

If it blows cool but not cold air, 1 can should be enough. R134A is the refrigerant you should use if your car is not too old. Do NOT buy it with stop leak in it. It could plug up the system so bad that you will need a technician to repair the damage.

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