harrisob
Apr 4, 2013, 10:22 AM
What are the considerations when replacing r-22 HVAC system with a r-410a HVAC system?
hvac1000
Apr 4, 2013, 12:42 PM
Replace outdoor coil/condenser assembly, copper line set and indoor coil assembly. This will make the refrigerant system all new and should take care of any contamination problems.