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.
To be able to use R134a in an R12 system, the R12 system needs to undergo a retrofitting so that it’s able to handle and process R134a refrigerant. This also means that some refrigerant conversion needs to be done in order to drop R134a into a R12 system.
The refrigerant R134A is called tetrafluoroethane and is classified as one of the HFC gases from the other refrigerant variants. Today, R134A is commonly used in vehicle air conditioning systems, but it can also be used in refrigerators, freezers and other refrigeration equipment similar to R12.
Symptoms include difficulty in breathing, vomiting, eyes burning, and skin irritation. R12 systems use mineral oil, and mineral oil is incompatible with R134a. Once it comes into contact with the mineral oil, it can trap the oil and reduce or cease any heat transfer.
What happens if you mix R12 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.
Can 134a replace R12?
In the automotive world, the replacement for R12 was tetrafluoroethane, a hydrofluorocarbon (HFC) branded as R134a. Note that R134a is also sometimes called “Freon,” even labeled as such on the can, so it’s best to be clear and use the names R12 and R134a.
What refrigerant is compatible with 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.
Is R12 higher pressure than R134a?
R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak.
What pressure should R134a run at?
For the normal running pressure in an R134A system, the coil should run at 22 pounds per square inch at the lowest temperature, 45u221220 = 25 degrees Fahrenheit. Similarly, at the highest temperature, 60u221220 = 40 degrees Fahrenheit, the coil should run at 57 psi.
What is difference between R12 and R134a?
The main difference between the two is that R12 is the amount of time they remain in earth’s atmosphere, with the newer 134a significantly less than the old R12.
Can you mix 134a and R12?
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 should the high and low side pressure be in a R134A system?
LOW pressure gauge: When the reading is between 25 and 40 psi with the A/C running, STOP. The system is fully charged and should be cooling normally. DO NOT add any more refrigerant. If the gauge is over 50 psi, you have overcharged the system with too much refrigerant.
What PSI should I recharge my AC to?
The system should be about 25 to 30 psi on the low side and 200 to 250 psi on the high side. If the ambient temperature is higher or lower than normal (70 to 80°F) the pressures will go up or down accordingly.
What should high and low side AC pressures be?
The system should be about 25 to 30 psi on the low side and 200 to 250 psi on the high side. If the ambient temperature is higher or lower than normal (70 to 80°F) the pressures will go up or down accordingly.
What are normal operating pressures for 134a?
As an air-conditioning refrigerant in newer automobiles, the optimal running pressure for R134A is between 22 and 57 pounds per square inch.
Which is high side and low side of AC compressor?
The discharge tube or high side is the tube coming from the compressor to the condenser (radiator like device). It is much smaller in diameter than the suction tube. Low (suction)side is the larger of the two lines, high side is smaller. Suction line should be cool or cold, high side is hot.
More Answers On Can You Charge R12 With R134A
What Happens If You Put R134a in an R12 System? – techtown
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.
R12 to R134a Conversion Chart & Formula – techtown
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. Formula: (R12 Charge Specification x 0.9) – 0.25 lbs. = R134a Charge Level. As an example, let’s say the R12 charge specification is listed at 2 lbs. You would do the following: This indicates that an …
What Happens If You Put R134A in a R12 System? – The Grumpy Mechanic
Jun 20, 2021R134a has much smaller molecules and will almost certainly leak if it is placed in an R12 system. Additionally, the R12 system has lower discharge-side pressures than the R134a, so you will experience compressor seal leaks. Refrigerant leaks are extremely dangerous, especially if they come into contact in your air and home, and cause poisoning.
R12 to R134a Conversion: Formula, Chart, Step-by-Step Guide & More
Multiply the R12 charge listing by 0.9 if its unit of measurement is pounds. Subtract what you get by 0.25lbs to arrive at the required R134a charge. This is how the calculation will be assuming that the R12 charge listing is 2.5lbs: Step 1: R134a Charge Level = (R12 Charge Listing × 0.9) – 0.25lbs. Step 2: (2.5lbs × 0.9) – 0.25lbs
How to Convert Your Car AC R12 System to R134a (4 Steps)
Apr 3, 2022R134a refrigerant is lighter than R12. To ensure the right charge, you must fill the new system with between 75 and 85% of the factory-set capacity for optimal cooling. … How to Convert Car AC R12 to R134a. The steps below are how you can easily convert your R12 to R134a in an older car. This is not the right way to convert your system …
How To Convert R12 To R134a In 7 Steps: Conversion Chart & Formula
Here are the quick steps to replace the R12 with the R134a system. 1. Discharge The R-12 Refrigerant: Discharging The Refrigerant. Empty the system from the old R-12 refrigerant. Recover the R-12 refrigerant for recycling. 2. Flush The Whole System: Remove all the oil and contamination.
What would happen if you added R134A to R12?
They seem to coexist just fine, but, since mineral oil is not miscible with R-134a, you’ll need to use a suitable oil. Since you have some amount of R12 in system, that could work perfectly fine, but that depend on ratio of R12 in mixture. And, as we know, you have mixture of unknown thermal properties to be able to properly measure and …
Air-conditioning dos and don’ts: Refrigerants and the law
The advantage of ester oil is that it works with both R12 as well as R134a, so you can fill the system with it and then use either refrigerant. The three major kinds of refrigerant oil: Mineral oil for R12 systems (left), PAG oil for R134a … “You can’t get R12 anymore,” or “It’s illegal to use R12,” those things simply aren’t true.
do you charge 134 as a liquid or as a vapor
Being a pure refrigerants, R134a, R12 and R22 can be charged either way. The blends like R401A, R409A, R410A and all in the 400 series of refrigerants must be charges as a liquid. The Azeotropes in the 500 series like R502 and R507 act nearly like pure refrigerants and can be charged either way as well. That makes sense.
Can You Use R134 in a House Air Conditioner? | eHow
R134 is a member of the more recent generation of hydrofluorocarbon (HFC) refrigerants that has replaced older, ozone-depleting chemicals, such as R22 and R12. R134 was specifically designed to replace R12 used in smaller air conditioning units, such as those used in vehicles. R134 is also used in home appliances, mobile refrigeration units and …
Using R12 in a R134a A/C system – EricTheCarGuy
recover the existing charge in the system first.Whether its R12 or r134a. Then add the Red Tek replacement. No mixing of refrigerants. If you have a Walmart or auto part stores. You should be able to buy the cans of R134A and recharge the system. The machine used to remove/ recover the refrigerant is called a recovery machine. The machine that …
Can you charge a R12 AC system? – Biketouraostavalley.com
May 18, 2022The conversions work reasonably well, bu not as good with the R12. What happens if you put R134a in a R12 system? 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.
Can you put r134a in r12 air conditioner compressor?
Can you put r134a in r12 air conditioner compressor? R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to
R12 to R134a Conversion – Step by Step Complete Guide
Nov 12, 20202 R12 to R134a Conversion. 2.1 Methods of Replacement. 2.2 Compressor Replacement. 2.3 Calculate the amount of 134a Required. 3 Necessary Parts for Conversion. 4 Steps for Conversion. 4.1 Removing remaining R12. 4.2 Finding high and low service ports. 4.3 Valves and Hose.
Can I put r12 in a r134a system? – bie.curwensvillealliance.org
The oils are different and not compatible and can cause an explosion. R134a is also a smaller molecule than r12 so if you HAD a small leak with r12 that you did not fix you have an even bigger leak now. R134a is so much smaller than r12 that it will leak right through the older hoses used for r12. Also Know, how much is 134a in a r12 system?
Can I mix R134 and R12a? – RedFlagDeals.com Forums
Next, add a can of R12a from the low side fitting while running your A/C. Shut off your car and once again let out all the pressure. Start the car again and add R12A to bring the low side pressure to about 32 psi. Hot spot auto parts .ca sells R12a for about $10/can and a $10 ALL IN ONE can with oil. dye and seal.
R134a vs R12 – What is the Differences? – Rx Mechanic
Mar 9, 2022The global warming potential of R134a is 1430. On the other hand, R12 has a global warming potential of 10,910. Hence, the effect of R12 on global warming is up to 10,000 times higher than carbon dioxide. A comparison between R12 vs. R134a temperature will show that R12 has a higher temperature than R134a.
Convert Auto R12 system to R134a? (TOP 5 Tips) – Belle Haven Shell
R12 to R134a Charge Conversion Formula (pounds only) When converting from R12 to R134a refrigerant, it is advised to use a charge level between 75 and 85 percent of the original charge. There is a simple method to use to compute the difference in charge level if no conversion information is given. When the R12 charge standard is specified in …
R134a to R12a conversion – Ford Muscle Cars Tech Forum
I was trying to buy a cople of cans of R134a in order to top off my a/c system, and they told me that if I get cought with a can of r134a without a refrigeration license I’ll get fine $ 50,000. The only refrigerant they sale is the new R12a. I’ve been looking in internet, and I cannot seem to find a r134a to r12a conversion kit.
Can I add R-134a directly to my R12 system? – AC Pro
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. Or you can convert the system using one of our R-134a retrofit kits that will allow you to now add 134a refrigerant to your automotive air …
Mixing R134A with R12 – Maintenance/Repairs – Car Talk Community
Will a 12oz can or less “marry-up” R12 in a R12 system. (92 Jeep 4.0) Buying Guides; Deals; Car Reviews; Repair Shops; Community; … 2007, 4:06pm #2. You cannot mix R-12 with R-134a, they are not compatible (and neither are the compressor oils used with them). If you have a R-12 system, you either need to use R-12 (make sure you fix the …
What happens if i put r134a into an r12 air conditioning system?
They had to develop BARRIER hoses to contain r134a. Even if you have an r12 system with no leaks, flush the system properly, then recharce with r134a and the proper oil but it still has the older style hoses…..the r134a will leak out. … If shops didn’t charge an arm and a leg and a left nut and your right ear to repair A/C people wouldn’t …
Using R12 in a R134a A/C system – EricTheCarGuy
recover the existing charge in the system first.Whether its R12 or r134a. Then add the Red Tek replacement. No mixing of refrigerants. If you have a Walmart or auto part stores. You should be able to buy the cans of R134A and recharge the system. The machine used to remove/ recover the refrigerant is called a recovery machine. The machine that …
R12 to R134a Conversion – Step by Step Complete Guide
2 R12 to R134a Conversion. 2.1 Methods of Replacement. 2.2 Compressor Replacement. 2.3 Calculate the amount of 134a Required. 3 Necessary Parts for Conversion. 4 Steps for Conversion. 4.1 Removing remaining R12. 4.2 Finding high and low service ports. 4.3 Valves and Hose.
Converting from R12 to R134a – Team Chevelle
And two addaptors to screw onto you factory A/C lines, $10.00 ( for the 134 charging hoses) When you charge your A/C system. Whatever the factory charge is. REMEMBER R-134 has a different expansion rate than R-12, So you use LESS. To get it to function and be just fine, You MUST go with the 80-Per.Cent charge.
do you charge 134 as a liquid or as a vapor
Being a pure refrigerants, R134a, R12 and R22 can be charged either way. The blends like R401A, R409A, R410A and all in the 400 series of refrigerants must be charges as a liquid. The Azeotropes in the 500 series like R502 and R507 act nearly like pure refrigerants and can be charged either way as well. That makes sense.
How can I tell if I have R12 or R134a? | SR20 Forum
The exact steps required for retrofitting vary depending on the year, make and model of car, but most often the process involves changing certain system components, changing service fittings, adding R-134a-compatible refrigerant oil and charging the system with R-134a, then finally applying a new system label that states the new type of …
Can You Use R134 in a House Air Conditioner? | eHow
R134 is a member of the more recent generation of hydrofluorocarbon (HFC) refrigerants that has replaced older, ozone-depleting chemicals, such as R22 and R12. R134 was specifically designed to replace R12 used in smaller air conditioning units, such as those used in vehicles. R134 is also used in home appliances, mobile refrigeration units and …
R12 to R134a Conversion: Formula, Chart, Step-by-Step Guide & More
Multiply the R12 charge listing by 0.9 if its unit of measurement is pounds. Subtract what you get by 0.25lbs to arrive at the required R134a charge. This is how the calculation will be assuming that the R12 charge listing is 2.5lbs: Step 1: R134a Charge Level = (R12 Charge Listing × 0.9) – 0.25lbs. Step 2: (2.5lbs × 0.9) – 0.25lbs
Can you charge a R12 AC system? – Biketouraostavalley.com
The conversions work reasonably well, bu not as good with the R12. What happens if you put R134a in a R12 system? 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.
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