As a result r22 will be increasingly difficult to purchase.
What is replacing r22 refrigerant.
The big impact is for large chillers that cool skyscrapers and hospitals.
Refrigerant 507 is the azeotropic mixture comprising 50 of r 125 and 50 of r 134a.
The most common replacement to r 22 is r 410a.
R 410a is the replacement for r22.
R22 is being replaced with a new refrigerant called r410a which has been shown to have almost zero effect on the environment.
Most work okay but will result in decreased reliability and performance.
What types of refrigerant are being used to replace r22.
Some of the new designs on the market for chillers and medium temperature refrigeration replace r134a gwp of around 1 300 with r1234ze which has a gwp closer to 1.
For this reason you should only use drop ins for quick temporary repairs and have a different long term replacement plan in mind.
For decades r22 freon was the industry standard for a c refrigerant but it s now illegal to manufacture or import r22 and r142b gas into the united states.
So let s see what is the replacement for r22 refrigerant which can be used with the air conditioning compressor and with flooded evaporators.
Major changes have to be made including replacing the r22 compressor evaporator and units and in some cases the copper lines that connect these components.
Some of these are r 134a r 507 r 404a r 407c and r 410a.
To update an r 22 unit to an r 410a one for example could involve the following.
There are several refrigerants that do not cause the depletion of the ozone layer and that can be used as the alternatives for r22.
Rather if you re not going to replace your unit entirely changing your current unit so it works with a different refrigerant is a process that requires expertise and therefore a trained professional.
An integral part of this entire process is removing all of the moisture from your entire hvac system and making sure their are no leaks.
There are drop in refrigerants that can be used in place of r22.
Replacing the a c unit evaporator coil and furnace.
It is known as suva 410a puron genetron r410a az 20 forane 410a and ecofluor r410.
They re moving to 123ze z from either r123 or r134a rydkin says.
Moreover the servicing of r22 systems is now limited to the use of recycled or stockpiled quantities of freon.
R 410a is a non ozone depleting hfc refrigerant blend.
No homeowners are not required to replace their old r 22 ac systems.
Just as hcfcs replaced cfcs so too will hcfcs be replaced by hydrofluorocarbons hfcs.
These compounds lack the atmosphere damaging chlorine found in cfcs and hcfcs and are expected to mitigate further ozone depletion though they also have a high global warming potential gwp and some organizations are moving for them to be banned as well.