28 pounds per cubic foot but R410a is 2. Once you find the 2002 Escort AC low pressure port cap, hook up the can of refrigerant to the low pressure port. Then add freon as needed. vehicles fitted with R12 and R134a type air conditioning systems up to 2007. Evacuate the system and check for leaks, and recharge. Year: 1991 Make: Honda Model: Civic Engine Size: 1. By model year 2021, all MVACs in newly-manufactured light-duty vehicles in the United States will be designed for R1234yf use. regarding converting to 134a. Locate AC Port - How to access the AC low pressure port and low pressure port cap. Stage 1: A/C Compressor Upgrade Kits – Our easy-to-install high performance rotary compressor upgrade kits will not only help you solve and. AC Pro Car Air Conditioner Synthetic R134A Refrigerant, AC Recharge Kit with Hose and Gauge, 20 Oz, ACP200. They say if a little bit of R12 and R134A mix it shortens the life of the A/C compressor and it won't work correctly anyways. The kit is available for about $35 at most general automotive stores and has everything you need to recharge your R134a. This will start pulling vacuum. Now go bring the car to a competent AC shop and have them evacuate them system than re-charge with R134a (use 75-80% capacity of the R12). Attach the hose to the can of R-134a if the hose did not come attached. I am using R134a but it is not very cool at parking. I never had to mess with the AC on my 740s and, as such, I don't know what they used from the factory. Replace any o. Flush all remaining components with a recovery device. welcome to FTE. 1991 Civic r-12 to r-134a conversion help. 7819 compressor which Peter has used successfully in an identical set up. Take the R12 charge specification and multiply it by 0. The A/C accumulator should always be replaced after the system has been opened. It sounds like you’ve got a slow leak in your air conditioning system since adding refrigerant helped it work for a few days. Once you find the 2001 Astro AC low pressure port cap, hook up the can of refrigerant to the low pressure port. R134a has a high GWP (global warming potential) of 1430. Click Here to Buy R-410A on Amazon. #5 · Jul 23, 2013. All of your A/C connections will have "O" rings. 【PREMIUM QUALITY】 - R12 to R134A retrofit fast conversion adapter kit are made of high quality metal and plastic, solid. After 2020, any air conditioning or heat pump system using R-22 that requires servicing will have to depend on potentially expensive R-22 stockpiles or reclaimed refrigerant. I have a 1993 Silverado Extended Cab w/5. r12 compressor use mineral oil, 134a uses an esther based oil. Refrigerant Compatibility: R134a. Evacuate A/C system using air conditioning service equipment. Typically the AC. Vehicles using R-12 refrigerant will have to be brought to a dealer or air-conditioning shop for recharging as R-12 is no longer available to the public. Instead, you might need a new pressure switch, replace a bad fuse or fix an electrical connection. and R134a systems. A/C conversion. 3 Pieces BPV31 Bullet Piercing Tap Valve Kits U-Charging Hose Refrigerant Can Tap with Gauge R134a Can to R12/R22 Port 1/2 Replace for. EPA regulations require a ban on the. R-744 is the refrigerant name for carbon dioxide (CO 2) and has been in use as a refrigerant since the mid-nineteenth century reaching its peak use in the 1920s. Same goes with the receiver/dryer. 2. We installed air conditioner when taking trips to car shows per wifes orders. It is a bit noisy, though, but I think it might be the clutch. Can be used effectively in R12 or R134a refrigeration systems without major "retrofitting. Then, remove the connector and place your charging kit in a safe location. See more1. Probably because it's much cheaper for them to get. I wanted to change the compressor and expansion valve, but al. In addition to cooling, freon lubricates the compressor when it runs. Replace all the old o-rings with R134a compatible o-rings. Get cold air back into your vehicle. With R134A, you should charge to 85% of the R12 capacity. AC Compressors are found behind the front of the vehicle so that the blowing air can help cool down the Freon. PAG oil will work as well but it is for R-134A systems only. 25 lbs of R12 refrigerant. The $500 is about the same as what it would have cost me to replace the same parts and pay someone to charge it back up with 3. By David S Godwin, Air-Conditioning & Refrigeration Institute (now AHRI) 18 March 1994 •AREP Results Led To Selection Of R134a, R404A, R407C & R410A In Various Applications •Higher Pressure Refrigerants Like R410A Performed Better In Actual Systems; Adoption In Efficiency Regulated AC Applications Grew In US/EuropeCar Vehicle Air Conditioning Refrigerant Recharge A/C r134a Hose Gas Gauge. The best part is, our Ford Mustang A/C Compressor Seal products start from as little as $1. To "compensate" for this, R-134a systems have a different type of condenser, components, and operating pressures. I put a 134A type clutch cycling/pressure switch in. no leaks system held for 30 minutes. You would do the following:What is the easiest way to convert my 71' Cougar Air Conditioner from R12 to R134 Refrigerant? Thanks Steve. It's hard to do a detailed step by step on this. If the system is functioning properly, proceed to step A3. Manufacturer. CFC-12: an Ozone-Depleting Refrigerant. Mowrangler. 9. Formula: (R12 Charge Specification x 0. Air-conditioning systems in vehicles of class M1 (passenger cars. Set of 2 A/C R-12 to R-134a Low/High Side Retrofit Conversion Adapter Fitting Caps Kit Air Conditioning AC System. Procure and install a compressor and the bracket that holds it to the engine block. When the air conditioner in your 1995 GMC C1500 starts blowing hot air, you likely have a freon leak. The diagnostics will work fine with the R134a if it is charged correctly. Fill A/C compressor with PAG oil, note fill capacity in table below. They are the black o-rings painted blue. biggs » Thu Apr 29, 2010 10:36 pm. Freon™ 134a can be used to replace CFC-11, CFC-12, and HCFC-142b in many thermoplastic foam applications. An air-conditioning unit in a car is made up of 5 main components: the compressor, condenser, expansion valve, evaporator, and receiver drier. All Classic Auto Air “Smart Series” and “Daily Driver” A/C systems use exactly 24oz. 5 °C, the COP and cooling capacity of the R134a and R134a/R1234yf refrigeration systems was found to decrease. compressor. One key to the use of R-134a is the amount to use. The more you drive, the less amount of time the AC will work properly. Change or restore the filter drier. 9) – 0. This type of refrigerant is environmentally friendly and does not require any hazardous or poisonous byproducts when it’s being manufactured. Here are the numbers. Blow out the liquid line that connects the condenser to the evaporator. I am working on a S-10 air conditioner. R12 to non-CFC Conversion HFC R134a gas: And this service takes around 90 minutes and includes: Recovery and measurement of any remaining refrigerant in the system; Also, system pressure leak test up to 9 bar (approx 140psi)You will want to make sure that all of the r12 AND the old mineral oil is flushed out of the system. Purchase a can of R-134a refrigerant and a charging hose with a gauge from your local auto parts store. -Replace the Accumulator. Typically the AC recharge kit you buy will have enough capacity to add enough freon to get the AC. And an AC compressor clutch is a device that allows the compressor to engage and disengage from the engine. How to Add Freon to a 1997 Ford Contour. Change the oil in the compressor, change the drier (aytime you open the system, change the drier-cheap insurance), get a couple of charge port adapters. 25 lbs of R12 refrigerant. 75 Oz. I have yet to see any specs for an Extended Cab. The other one, the "High Side" fitting, is located on the. What do you think? Is that a good deal. The R134A charge should be 85% of the recommended R12 charge and will produce evaporation temperatures about 3F higher than R12 at the same pressure. When your compressor kicks on, add freon to the correct pressure. But they would have to charge me to evac and replace the r12. Look in between the connector terminals, there will be a screw. 12v. 7. This is 85% of the amount the system calls for R12. the "old blue" which is a visual blue still is OK but UV will detect more slow/micor leaks to reallt tigthen up the system. Close all of your valves on your manifold and hook the yellow hose up to your vacuum pump. i. When the air conditioner in your 1994 Toyota 4Runner starts blowing hot air, you likely have a freon leak. The air conditioning does not work. The conversion kit will give specific instructions on oil. R22 Replacement: What You Need to Know. 811 posts · Joined 2011. The typical cost is $10. The R134A charge should be 85% of the recommended R12 charge and will produce evaporation temperatures about 3F higher than R12 at the same pressure. 03 g/mol, a boiling point of -26. Item. The system will probably take a little more than three cans of 134. The A/C Pro ® App also provides access to the A/C spec database, for information on refrigerant oil specifications and capacities by vehicle. R12 to R134a Conversion Kit, 1Pair R12 to R134a Convert Adapters, R12 to R134A AC Retrofit Fitting Adapter Kit, R12 to R134a Adapter Fittings, Fits for Car AC Air. This R12 to R134a conversion kit features 2 adapters. If the clutch does engage manually, you are looking at some rarer issues. To ensure the right charge, you must fill the new system with between 75 and 85% of the factory-set capacity for optimal cooling. R134a refrigerant is lighter than R12. flush the system. Once you find the 1999 Taurus AC low pressure port cap, hook up the can of refrigerant to the low pressure port. Up until about 1991, all major automobile manufacturers used R-12 as a refrigerant in A/C systems. Don't just "fiddle" blindly with the switch, make the adjustment BY THE PRESSURE READING. This kit includes a remanufactured compressor which will operate with R134A Refrigerant, a drier, an evaporator orifice and the oil, seals, fittings and adapters. 1994-1995 are R-134a Factory equipped. Often most a/c systems are either overcharged or undercharged. Most refrigerants include a leak sealer that will seal small leaks in addition to filling the R134a freon. The gas has temp/ pressure characteristics that are different than R12. for refrigerant R134a, and in some cases for refrigerant R1234yf and others. mode and kick into ECON. Shop air too often has moisture in it. 0 to cool more efficiently with this Classic Auto Air R-134a A/C conversion kit! Even a novice can upgrade and convert factory-installed air-conditioning in the Fox Body to the more current 134a refrigerant with this ultra-high. Detach the refrigerant connector from the port. The leak detection is best done with a UV light and UV dye. In other words, if your system has a minor leak with R12, it will be a major leak with R134a. Year: 1991. HaPtOAD · #9 · May 11, 2009. If you drive a normal amount of time in your car and run the air conditioner an average amount, expect it to work well for three to four years before the system needs to be recharged. Since then, the industry standard has been R134a, which is an efficient replacement. These are different from R12 fittings and should not be interchanged. I think i need to convert to r-34a. Disadvantages to Converting. After determining the correct pressures using the ambient air pressure chart, monitor the pressure readings constantly while charging the system. If the system was low, your AC compressor clutch will not engage. The next step in retrofitting air-conditioning is to permanently install the components that you removed with new O-rings. It will be located on the line that runs between the AC compressor and the condenser. The high port side is the one with the small hose. This will let some of the R134 go into the system. The A/C accumulator is the refrigerant reservoir, and houses the desiccant which removes moisture in the refrigerant. New drier, new compressor and orifice tube a good flush, good. Converting from r12 to r134a. Recommended steps to converting your Ford R12 air conditioning system to 134a. Hey all, I intend to replace the Air Con and try and get the dash air working again. $ 3655. When you get the clutch cycling switch, the parts house should have a retrofit option for it. Find the high and low side service ports for the R12 air-conditioning system. When r134 first came out the procedure was to change the hi and low pressure fitting to R134 size, replace the receiver/dryer, evacuate the system, put in a can of r134 oil, a can of seal conditioner and add r134 freon. 100+ bought in past month. Replace the o-rings and add the right oil for your compressor. R134a and water have the same abilities to change the state but R134a can do this more rapidly and at a much lower temperature than water. R-12 was the standard refrigerant for vehicles for many years but as air conditioning became more and more popular the amount of R-12 Refrigerant that was released into the atmosphere grew and grew. When your compressor kicks on, add freon to the correct pressure. 00 . I am a new member that is converting my 1991 F150 AC system from R12 to 134A. The EPA has published info stating that NO major changes need to be made just to simply convert from R12 to 134-a. 1. The compressor is located in the engine compartment and is belt-driven by the engine. This is what you have to do. The most immediate is a lack of cooling power, which is caused by the fact that R134a is less thermally efficient than R12 or R12 drop in replacements. Make sure that the drier is new, and that the compressor is R134a compatible. Procure and install the condenser and fan that fit in front of the radiator. Then all you should have to do is pull a vacuum, fill it with pag oil, and charge it with r134a. A new comp. After calling about half a dozen repair shops and getting their opinions and quotes I decided to go with one that gave me a quote of $45 labor and $50 a pound for R12 (takes 1. Start the vehicles engine. The mixing of R-134a with R-1234yf will change refrigerant pressure and may result in evaporator freeze-up on pressure control systems, reducing system airflow. It includes one low side port measuring 0. 25 lbs. Blow out both compressor hoses. Typically the AC. Change or restore the filter drier. R-1234yf costs around $700 for a 10 lb. Evacuation – Using R134a equipment, evacuate the A/C system for a minimum of 40 minutes at the vacuum of -100kPa. The steps for retrofitting the system are as follows: Remove the old compressor, condenser, and receiver/dryer from the system.