New Refrigerant with old evaporator

[sageoldmann]

Joe consumer here. If I replace a 20+ year old R-22 home AC condenser with one with current new refrigerants will I have to replace the evaporator (only 2 years old) in the furnace? What is the most common refrigerant used in new home AC systems?

[The Viking]

Probably but your best option is to ask the manufacturer.

[icecube51]

if the outdoor unit is not broken, why not clean the tubes en switch to R290 ? it is the best replacement for R22. just be careful, its flameble gaz.

grtz, Ice

[icecube51]

O yeah,
here in Belgium the newest is R410a ,

grtz , Ice

[salman ahmed]

I have a problem of refrigeration system of cold store problem is, i want set temp -20 but system not reach that point. sight glass showing system under charge if i increase gas R404a discharge pressure too high above 350psi, please suggest what i do

[The MG Pony]

I have a problem of refrigeration system of cold store problem is, i want set temp -20 but system not reach that point. sight glass showing system under charge if i increase gas R404a discharge pressure too high above 350psi, please suggest what i do

I kindly suggest you do not break into another fellows thread, then make a new post of your issue with more detailed info. I will all so suggest you put it into the proper forum!