do i need to add oil when adding r134a

How do I add R134a to my refrigerator? Oh and BTW: OTC recharge refrigerant in-a-can typically comes with 2 types (citing "Quest" and "Interdynamics" brands) one is R134a with ester, while the other is R134a with PAG (standard). Polyolester oil (POE oil) is a type of synthetic oil used in refrigeration compressors that is compatible with the refrigerants R-134a, R-410A and R-12. Turn on the blue (low pressure) valve a bit (not fully open) to get refrigerant into the blue hose. BMW Refrigerant and oil capacity charts || TechChoice Parts. I also noticed that most of the cans sold there contain oil, so I figured it must be harmless to add even though you don't know if you need it. What type of oil is used with 134a? It is carried throughout the system in the refrigerant. If your compressor is going into a system that has previously been installed, its important to get as much of the original oil can of oil to them, (just as a precaution and it won't hurt). Once youve got the correct type of oil, you can use the Red Angel Oil Injector to add the AC compressor oil to your system. Do I need to add oil when adding R134a? You can put to much oil in the system. New 134a rotary compressors come with a full system charge of PAG oil, which is compatible only with 134a refrigerant. In addition, there was the lubricant issue. I agree. You must remove all moisture before charging the system with refrigerant to prevent such problems. How To Add PAG Oil Into An AC System Watch on You'll find it hard to determine how much oil to add. This might seem like common sense but important enough to be reinstated to prevent accidents. However, Freon is toxic, so you need to be careful while adding. R134A is more hygroscopic than R12, so it is more prone to moisture absorption. Rick99. R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. According to my Haynes techbook, you need 4 to 5 oz. This is a push lock in type. I bought one of those re-charging kits at Advance auto and the two cans of R134 both contained oil. Nest is POO! Gloves; Safety glasses; Step 1: Turn On Your Car and A/C I need to buy some freon R134a to recharge my 2001 GC AC system. However, after evacuating and recharging I always add a 3 Oz. I only need 10 mL, so I'm looking for a way to add 1/3 oz. Slight over oiling is not a problem so I tend to be conservative. Professional AC equipment comes with provisions to add the correct amount of oil with each charge. If the compressor was bad, you should be flushing the system which will remove all the oil along with the debris. Most refrigerators also do not use Freon, so there are many consequences related to it. Its probably leaked out with the R-134, but I would try to find the leak beforehand (you can buy a dye tracer kit for relatively cheap, plus it makes a fun weekend project). Because A/C compressors have moving parts, they require oil. The AC compressor I got off Ebay has a 8 oz bottle of this PAG oil to add to the compressor. Base your oil recharge on how much oil came out during evacuation. from there I got "R12: 53 ounces=1502 grams, mineral oil 6.75 ounces=191gram". The system must be tolerant of a reasonable range here. If youre worried about not being able to add in the correct amount of refrigerant oil, you can also opt for a refrigerant that already has the oil mixed in with it. This simple fix recharges the R-134a (freon), stop leaks & gets your car A/C cold again. However, more of a concern is that the R1234YF uses a different oil in the system from R134A. Newer vehicles with R-1234yf A/C systems require a special PAG YF 46 or PAG YF 100 compressor oil, which one depends on the compressor and the requirements of the vehicle manufacturer. When an A/C system leaks refrigerant, some oil escapes also. If it's PAG, you shall recharge with PAG oil type only. This is why a qualified shop is best when an a/c system is totally empty or opened up. Unscrew the protective cap on the car's air conditioning low pressure port. I figured that since I know that oil has not been added for 13 years, the best guess would be to add the oil. I used about one can of that oil and a few cans of R134a. Opens in a new window Opens an external website Opens an external website in a new window This website stores data such as cookies to enable essential site functionality, as well as marketing, personalization, and analytics. So the difference between 1-1/6 oz, 1-2/3 oz, and measuring what comes out is not something to worry too much about. New 134a rotary compressors come with a full system charge of PAG oil, which is compatible only with 134a refrigerant. If your compressor is going into a system that has previously been installed, its important to get as much of the original oil charge out of the system as possible to protect against an oil overcharge. Your old R12 system which I assume was converted to R134a typically has a larger oil charge, like 4 oz or so. Of course, if you Of course, you should never exceed the recommended capacity of your system. You would require only the R134a refrigerant oil. If it was 0.5 oz then I might not. On top of that, its difficult to add oil to the AC system with DIY tools. Similarly, you may ask, how much refrigerant oil should I add? How do you add oil to AC recharge? Remember you only want to remove any oil left in the system; if you needed to flush the swarf of a failed compressor away i would have told you to replace the condenser (and the TXV too if dirty) and Hold the compressor so that the open end is facing upward. This is simply a comparison of a solid running R12 system and an R134a conversion. I would go with the oil. Also, the oil can help to deal with some of the moisture in the system. Bennett Auto Supply. Once youve got the correct type of oil, you can use the Red Angel Oil Injector to add the AC compressor oil to your system. You can find the Red Angel Oil Injector and other Red Angel AC products at any of our partnering auto parts stores like: and two cans of refrigerant R-134a (12 oz.) 180 ml of oil is equivalent to 6.09 oz of R-134a or 0.6 kg is equal to 1.4 lb. Things You Will Need To Top Off Your R 134a Air Conditioner. In addition, its not a good idea to mix R134a refrigerant oil with R12 oil. If I understand the math here correctly, 8 oz = 237 mL of refrigerant oil. AC work goes to the shop IMHO. Recomended amount of time to Are you adding the PAG oil in the can (I think it's a 6oz can that I got from Walmart). the oil is not a component of the refrigerant itself but added separately by the factory. This simple fix recharges the R-134a (freon), stop leaks & gets your car A/C cold again. I plan on flushing my ac system and then there will be no oil in it, so what is the best way to add oil, all in the compressor or do I have to add the certain amount into every component? Question 2: This simple fix recharges the R-134a (freon), stop leaks & gets your car A/C cold again. We stand behind the ZeroR Brand with a high-quality product, customer support and free shipping in the USA. Yes there is oil in the system to keep the compressor lubricated. The smaller the oil charge the greater the impact of lost oil. R134a Recharging Kit For this how-to tutorial we are using our ZeroR R134a AC Refrigerant Top Off Kit. Then, screw the rear cap on tightly and use a wrench to tighten it further so its secure. If so, what type and how much? So I need to add some R134A. BustedKnuckles June 29, 2008, 3:40pm #2. But I have never read how to purge the hoses in the manifold gauge set of air before I tap the R134A. So basically if leaks have occurred or work has been done before, and not done carefully, there is no way to know precisely how much oil is left, it seems. When just replacing a hose you shouldn't need to add any oil to the system. Water in the system can cause problems that includes rust and icing in the sytem (after refrigerant is in the system). 1. I have my trusty harbor Freight A/C manifold gauge set and a couple of tap cans. Oil and refrigerant capacity table for BMW vehicles. Refrigerant Capacity 0.50 0.025 kg (1.100.055 lb) in residential applications there is rarely ever a need to add oil. This becomes an issue if youre retrofitting an AC system. General Motors recommends GM lubricants only (PAG-PSD1 #19260643 for 2013/14 Cadillac XTS, and PAG-ND12 #19299051 for 2013 Cadillac ATS) with R1234yf A/C When flushing an AC system, its important to follow the instructions in the OEM service manual and add the correct amount of PAG oil. The compressor is an air conditioning system component that requires sufficient oil to function correctly. Unless youve modified the compressor or theres a leak causing the system to spill oil, theres usually no need to add oil to your cars present AC system. On top of that, adding oil to the air conditioning system using hand tools is a challenging task. The total amount of R134A that they hold is 17.6 Ozs. Don't worry none will flow out yet. Bottom line, R134a simply doesn't cool as well as R12. Share Improve this answer answered Jun 20, 2016 at 1:17 john D. 552 2 5 Add a comment Adding R134A. Furthermore, mixing R134a refrigerant oil with R12 oil is not a smart idea for a variety of reasons. Our products all have the proper ratio of oil to refrigerant already blended to replace the lost oil. You can find the Red Angel Oil Injector and other Red Angel AC products at any of our partnering auto parts stores like: AutoZone. ! oldschool June 29, 2008, 5:06pm #3. Insert a funnel that fits into the opening and slowly pour the recommended amount and type of oil. since convert R134a system refilled to about 75% of original capacity, I got refill R134A with 39.75 ounces=1127 grams. You won't necessarily need more dye as it is strong stuff. It has a Nippondenso 10 cylinder compressor. www.techchoiceparts.com. An average car might use a bit of oil (4 oz. ) In addition, its not a good idea to mix R134a refrigerant oil with R12 oil. This becomes an issue if youre retrofitting an AC system. On top of that, its difficult to add oil to the AC system with DIY tools. mcparadise June 29, 2008, 5:35pm #4. Once you confirm it, then you can add Freon by yourself. Thanks for the tip! As such you don't need to get any strange chemical in the AC system when you flush; just use R-134A with a closed loop flushing system, a few minutes for each system section. Year: 1991 Make: Honda Model: Accord Engine Size: 2.2 Refrigerant Type: r134a Country of Origin: United States . Dont be mistaken: a modern R134a system will outperform a 30-year-old R12 system. Opens in a new window Opens an external website Opens an external website in a new window This website stores data such as cookies to enable essential site functionality, as well as marketing, personalization, and analytics. You can also get the stuff from Autozone, Advanced auto parts or Pep boys, but Walmart sells it the cheapest. Below are other reasons why many decide NOT to convert from R12 to R134a: 1. If I put in refrigerant (top off), do I need to add oil too? maybe during a compressor changeout or a switch to a new refrigerant, but in normal operating and repair circumstances it would be never. Step 2: Screw on the automotive air conditioning adapter onto the end of the blue hose. In addition to refrigerant oil, certain off-the-shelf cans may include refrigerant oil. It is usually added in when the system is charged. Advance Auto Parts. You have to check the oil capacity for your system in the manual. New, R12 Rotary compressors come with a full system charge of Mineral Oil, which is compatible only with R12 refrigerant. Add the right type and amount of oil and secure the rear cap. Techniker June 24, 2010, 4:04am #11. First of all, check whether your refrigerator is eligible for the r134a. The R134a / PAG oil combo looks like a good option if someone needs to add a full 2 oz of oil, but it doesn't look like the right thing for the receiver drier replacement situation.

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