Can you use r410a on a r22 system

In the manufacture of R itself will be discontinued. R refrigerant is skyrocketing in price due to government mandated reductions in production, and it is never going to get cheaper. To retrofit an R system with RA system your line set must not be more than feet in total distance.

If the line set is longer than this, you will have to replace the line set with larger lines. Brad Telker. Brad was born and raised in St Louis Missouri, where he spent the first 18 years of his life. Brad joined the cfm team in , and now as the Vice President of Commercial Sales, he focuses on business development, as well as helping contractors and engineers find creative and unique solutions to any size project.

Latest posts by Brad Telker see all. How many tons of air conditioning is this DX or… How do you fix a humidity problem? The polyethylene-based lubricating oil breaks down in the presence of water. After the new RA mechanical components are installed and all line connections brazed, the installer must connect a vacuum pump to the system, draw it down to a vacuum of microns, and hold it there for several hours, sucking out any traces of water vapor that boil out of the system in this hard vacuum.

Leaks in the system make it impossible to hold the vacuum until they are found and fixed. Once the system is dry and tight, the technician can charge the system with RA. The extensive system changes are required because R and RA refrigerants are not interchangeable and cannot be mixed in the same HVAC system.

Was that it? Does it just come down to more leaks and recovery problems? Understand this: The mineral oil in a compressor has a vapor pressure. Yet, the company spokesperson assured me that mixing Ra and R22 combines their pressures and reaches a lower median.

Is that true? Not according to the gas laws I used to teach. Rather, the books I taught from say that each refrigerant reaches its own vapor pressure.

It will just flood back to reduce the compressor life and will greatly reduce the system capacity. Do I have an answer? No, but I suspect that mixing the two refrigerants is a terrible idea. Meanwhile, hundreds, thousands and soon millions of air conditioners may be contaminated in this way.