Oxygen and moisture contamination is the biggest killer of r410a compressors that we see today. The shell of an R22 compressor is not made thick enough to use R410A. While not recommended in all applications, it may be possible to retrofit the existing cooling system. On-site flushing methods and/or materials appear to be the main culprit in post retrofit breakdowns because of the difficulty getting all mineral oil, acid and moisture traces out of the old systems linesets. R410A differs from R22 in a number of ways. With r410a units, the Retrofitting is the process of modifying your current air conditioner so that it can become compatible with newer components. 410A runs at a much higher pressure and the wall thickness of 410A pipe is much thicker. Goodman provides general guidelines for situations when it is acceptable to install a 13 SEER or 14 SEER R-410A air conditioning unit while keeping existing R-22 indoor unit and/or line sets (guidelines do not apply to heat pump applications). I live in Dallas and depend on my AC. It's hooked up to a 5 ton Lenox coil that is substantially newer, though it must be at least 5 years old because that is when we bought the house. This new type of refrigerant is what modern HVAC systems are designed to use. Re: R22 to R410A retrofit Originally Posted by MACT Be very careful, R22 7/8" pipe is not rated for 410A use. What we found was two big York 40 ton 4-circuit air handlers coupled with eight 10 ton condensing unit. R-22 to R410A retrofit. It would probably blow apart. R438A is marketed by DuPont as ISCEON MO99, though there are other brands out there. The old R22 compressors were not so picky. the oil problems may the least of your problems. The metering device would be the wrong size also. A tech could do a poor job of installing the R22 condenser and the unit would last for 10 years or more. Jul 15, 2019 #1 Just the other day I went with my boss to check an existing R-22 installation, in order to quote a retrofit. With this in mind, do not expect an air conditioner with R22 refrigerant to just work with R410-A components. If you purchased a system after 2010, chances are it uses R410A. The mineral deposits (oil) from the R22 built up inside the line sets turn the oil of the new R410A into an alcohol and this wrecks the lubricating properties of the oil and the compressor siezes on your brand new air conditioner. R410A and R22 are COMPLETELY incompatible. The replacement for R22 is R410A. The system is on r22 now. What Is Retrofitting? The answer: No.Putting R-410A refrigerant into an AC unit that was designed to use R-22 will cause the unit to die soon after it tries to run. However those retained linesets must be flushed out properly before theyre used with the new R-410a equipment. They will not work until a professional can retrofit your unit. R22, a hydrochlorofluorocarbon, is one of the last ozone-depleting substances still commonly used. Please tell us why you want to convert your current R22 system to R410A. For owners of older R22 units who prefer to retrofit rather than replace their system, R438A is an HFC replacement which behaves similarly enough to R22 to use the same metering devices. Thread starter manusanch; Start date Jul 15, 2019; M. manusanch Well-Known Member. Now to be fair, you could technically retrofit an R-22 unit to accommodate R-410A refrigerant but that would include: There is no reason to go to R410A, if your current R22 system is working ok. Our house was built in 1996 and we have a 15 year old 4 ton York compressor that is starting to die.
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