R410a Refrigerant

R410A refrigerant vs R22 Frequently asked questions

All the Frequently asked questions on R410A and R22 are answered here.Please read the answers to all questions to become expert in home refrigerant systems.

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Why R22 is replaced with R410A?

R410A is the most popular choice to replace R22 in home air conditioners because its performance is similar to R22 and it does not contain chlorine and hence it is less damaging to Ozone layer.

Popular Brand names of R410A?

GENETRON AZ-20, SUVA 410A, Forane 410A, and Puron.

Can i buy R410A Legally without certification ?

Unlike R22,R410A is not covered under refrigerant sales restriction.So any homeowner can buy cans or cylinders of R410A.You dont need to have any certification.

Can i put R410A in my R22 AC System?

No.The airconditioning cycle of R410A and R22 are same but there are some major differences.R410A operates at 60 percent higher pressure than R22 and so it puts extra pressure on all AC components.It is also not compatible with mineral oil used in R22 Systems.

What precautions we need to take to fill R410A AC Systems?

It must be taken out in liquid form from cylinder to avoid its seperation into individual components.A quick charge adapter is needed to convert refrigerant from liquid to vapor before it enters the suction line.

How to replace existing R22 systems with R410A?

You need new evaporator coil,line set and compressor.You need to remove the oil using flush kit ,Since R410a is not compatible with mineral oil.Also install suction line filter drier for around 2 days.Expansion valves must be compatible to handle extra pressure that R410A Puts on the system and use only approved mirror devices.If you cant change line set then check for kinks,bends and oil traps.Dont use Safe solder for any connection.It uses ester oil instead of mineral oil.Hence you need to remove all traces of mineral oil.Ester oil has great affinity to water.So proper evacuation must be done before startup.

Is it necessary to change R22 systems to R410A?

Manufacturers will stop producing R22 AC systems from 2010 But the R22 refrigerant will be available till 2020.After 2020,there will be complete phase.So you dont need to change your R22 system to R410A unless you are too big fan of Green planet syndrome.