R12 to r134a oil conversion chart

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Includes three cans of High Mileage R-134a with Oil and How-To CD; Comes with reusable trigger dispenser with built-in gauge and temperature dial indicator; Includes retrofit valves needed to convert the high and low-pressure ports from R-12 to R-134a and EPA-approved label; 36 oz. total fill (three 12 oz. cans) to replace lost refrigerant ... Assuming the compressor is in good shape, the owner of this 1965 Mustang can convert from R12 to R134a. Here are the steps to take to make sure the converted AC system gets nice and cold. 1. Drain the compressor oil and recharge with a full charge of R134a compatible oil such as PAG or Ester Oil. Majority of automotive manufacturers recommending PAG (Poly Alkaline Glycol) oil as the only oil replacement when retrofitting R12 automotive A/C systems to operate on R134a refrigerant. Ariazone also recommends POA oil which is fully synthetic oil and suitable for all compressors + refrigerant R12 and R134a. CONVERTING R-12 SYSTEMS TO R134a: Recommended Procedures For Sanden R-12 Compressors Retrofitted With R134a . The use of R134a in mobile A/C systems designed for R-12 refrigerant use causes higher discharge pressures (as much as 10-15%) and necessitates changing the compressor lubricant from mineral oil (5GS) to PAG oil (Sanden's SP-10 or SP-20) to ensure compatibility. The R134a changeover will require that you change: The orifice valve The condensor (R134 condensor needs to be much larger than a comparable R12) The receiver/dryer and the trinary switch on top of it. The hoses (because the r134 molecule is small enough to leak right through r12 hoses - unless you want to recharge the system every year or so). The pressure/temperature curves for R-1234yf and R-134a are very similar. As illustrated in the chart below, the curves below run together nearly throughout the curve, only slightly breaking paths at around 250 psig/150 degrees and above. Flammability/Safety. R-1234yf has been designated as MILDLY flammable. Drain the compressor oil and recharge with 134a compatible (PAG or Ester Oil) oil. This is assuming the compressor is currently functioning correctly. Replace or restore all rubber hoses with barrier hose. Install 134a charge port adapters. Charge with 134a between 70-80% of the original R12 charge amount. Replace any O-rings with 134a compatible. Drain the compressor oil and recharge with 134a compatible (PAG or Ester Oil) oil. This is assuming the compressor is currently functioning correctly. Replace or restore all rubber hoses with barrier hose. Install 134a charge port adapters. Charge with 134a between 70-80% of the original R12 charge amount. Replace any O-rings with 134a compatible. R12 to R134 A High/Low AC Fitting Port Retrofit Conversion Adapter, Quick Coupler Valve A/C 90° Fitting, High and Low Side R-12 to R-134A Retrofit with 2 PC Caps 4.3 out of 5 stars 62 $14.99 $ 14 . 99 Oct 02, 2020 · R12 to R134A Conversion There are two ways to convert the air conditioning of your vehicle to the R134A gas. One is the factory method, where you would need to replace the AC parts, and the other is to modify the existing components to use R134A. DIY: R-12 to R-134a Conversion (How-To) This DIY guide is to help those who wish to convert their working but leaking or non working A/C systems on the MK3 Supra from R-12 to R-134a. First below are a list of tools, new parts, and supplies you’ll need in order to follow this guide. Apr 14, 2013 · 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). You can also use PAG (Poly Alkylene Glycol) or Castrol Retro Oil for lubricant. R134a refrigerant (amount varies by model ... Since then, the industry standard has been R134a, which is an efficient replacement. Contrary to popular belief, most cars originally equipped with R-12 can be converted to 134a and still keep you just as cool. It seems as it was only yesterday that they said R12 is bad, and R134a is good, and know they are changing their mind again. The guy finally showed me a kit to convert form R134a to R12a, which has a moisture remover can, a sealant can, and a R12a can. With this kit, I'm supposed to be able to do the conversion without any problem. The old R-12 system took 4.25 lbs , so I'm going to start with 3.75 lbs of R-134A But what about the refrigerant oil? My new 134A compressor came with a 3 oz. charge. My original service manual states that the factory compressor should have 10.5 oz of oil. With the compressor off the vehicle, refill with new R-134a refrigerant oil in the amount called out in the Adaptation Component Chart. NOTE : SPECIAL EFFORT MUST BE USED TO KEEP ALL R-134a SYSTEM COMPONENTS CAPPED TO PREVENT MOISTURE FROM ENTERING THE A/C SYSTEM OIL. Usually blocking the cap tube. R409 can be used as a replacement for R12. You should also be aware of the following; Retrofitting Considerations: Equipment built for R-12 will be sized a bit too small compared to equipment built for R-134a. In order to do the same job, an R-134a system will need a larger compressor and larger heat exchangers. Aug 21, 2019 · HVAC files The old R-12 system took 4.25 lbs , so I'm going to start with 3.75 lbs of R-134A But what about the refrigerant oil? My new 134A compressor came with a 3 oz. charge. My original service manual states that the factory compressor should have 10.5 oz of oil. Includes three cans of High Mileage R-134a with Oil and How-To CD; Comes with reusable trigger dispenser with built-in gauge and temperature dial indicator; Includes retrofit valves needed to convert the high and low-pressure ports from R-12 to R-134a and EPA-approved label; 36 oz. total fill (three 12 oz. cans) to replace lost refrigerant ... Aupoko AC Oil Injector Tool Kit, R134A Oil Injector with Low Side Quick Coupler, R134A Refrigerant Charging Hose with Gauge, R12 to R134A Conversion Adapter for R134A Air Conditioner System 3.0 out of 5 stars 2 Since then, the industry standard has been R134a, which is an efficient replacement. Contrary to popular belief, most cars originally equipped with R-12 can be converted to 134a and still keep you just as cool. Conversion chart of R12 (26oz) to R134a said I should only use 18-20oz of R134a. When I charged close to 18oz the high side never really got above 175psi @65F or so and I decided to charge more until the high side reached closer to 250 @65F and that was when the charge bottle was empty. Converting Air Conditioning to R-134 By Rob - [email protected] (Editor's note: Please read this article on Refrigerant Recovery.)I have a 1990 Miata which I wanted to convert to R-134a from R-12. IIRC, R134a has a lot higher pressure than R12. The conversion should be pretty straight-forward, but you can't just change the fittings and dump the new refrigerant in -- you gotta flush all the old mineral oil and Freon out first, and replace the mineral oil with whatever lubricant R134a likes. The R134a changeover will require that you change: The orifice valve The condensor (R134 condensor needs to be much larger than a comparable R12) The receiver/dryer and the trinary switch on top of it. The hoses (because the r134 molecule is small enough to leak right through r12 hoses - unless you want to recharge the system every year or so). In our shop, we have a special machine just for r12 systems. This next step is necessary and a lot of people will skip it. Your A/C compressor will require an oil change. R12 and R134-A use different refrigerant oils. It is necessary to remove the air-conditioning compressor and drain out all the oil. In our shop, we have a special machine just for r12 systems. This next step is necessary and a lot of people will skip it. Your A/C compressor will require an oil change. R12 and R134-A use different refrigerant oils. It is necessary to remove the air-conditioning compressor and drain out all the oil. Jan 10, 2010 · Another difference is the the type of lubrication that will required when using R-134a. For years, most R12 compressors required a standard 525 SUS viscosity mineral oil. Mineral oil will not mix well with R-134a. They seem to coexist just fine, but, since mineral oil is not miscible with R-134a, you'll need to use a suitable oil. the refrigerant must be recovered, and needs to be unadulterated R12. also, all of the oil in the system needs to be purged, because it will gel in a R134a system. big fine if you get caught venting the gas yourself, and probable death of the compressor and valve damage if you put in R134a without properly blowing out the old oil. Apr 26, 2018 · What you need to convert R12 to R134a using the Quick/Easy. 1) R134a retrofit kit with R-134a port adapters, oi, port caps and retrofit label. 2) R134a pressure switches. Here’s how to convert R12 to R134a with the factory method. 1) Discharge the R12 and recover the R12 for recycling. Includes three cans of High Mileage R-134a with Oil and How-To CD; Comes with reusable trigger dispenser with built-in gauge and temperature dial indicator; Includes retrofit valves needed to convert the high and low-pressure ports from R-12 to R-134a and EPA-approved label; 36 oz. total fill (three 12 oz. cans) to replace lost refrigerant ... Complete R134a Recharge and Retrofit kit. ... Everything you need to recharge your AC system or retrofit from R12 to R134a; Includes 2 cans of High Mileage ... The pressure/temperature curves for R-1234yf and R-134a are very similar. As illustrated in the chart below, the curves below run together nearly throughout the curve, only slightly breaking paths at around 250 psig/150 degrees and above. Flammability/Safety. R-1234yf has been designated as MILDLY flammable.