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View Full Version : I have a five ton R 22 hp commercial system. Can I change the evaporator expansion va


e109ehc
Nov 16, 2015, 10:40 AM
I have a five ton R 22 hp commercial system. Can I change the evaporator expansion valve and convet it to a r 410 system?

ma0641
Nov 16, 2015, 11:03 AM
Probably not. It is more than an expansion valve. In the case of HVAC systems, conversion requires replacing the R-22 compressor, evaporator and condenser with units designed to run with R-410A. Why not keep R-22 it is still available although no longer produced.