Quote:
Originally Posted by Craig Vernon
Since it seems we are neighbors now. : ) We are both in the same spot 13 years original Carrier unit still working when I left and only one neighbor replaced so far that I spoke with. Whoever said Carrier is cheapest unit builder could've installed is completely wrong. I have worked on heating and ac equipment for years but Ohio is a different animal. Following post.
|
Since R410A is being phased out to save the world, are you familiar enough to make recommendations to a homeowner whose HVAC needs to be replaced. Try and get another 410A system if they can find one?
And what modifications will be needed to make the transition to the next generationof refrigerants? I understand they are mildly flammable. Will the linesets have to be replaced?
This is what I found:
Lineset Is In Good Condition
No kinks, corrosion, or wear. Old or damaged copper tubing can leak with mildly flammable refrigerants like R-32 or R-454B.
Proper Flushing or Replacement of Oil and Residue
R-410A uses POE oil, while R-454B and R-32 may use different blends. The line must be thoroughly flushed with approved cleaning agents to remove any old oil or contaminants. Some manufacturers require triple evacuation and filter drier installation.
Manufacturer Approval
Some OEMs (Carrier, Lennox, Trane, etc.) may allow reuse of R-410A linesets with specific procedures. Always follow the manufacturer’s installation guide.