Last March, my daughter moved into a 16 year old house that has the original system: Lennox HS25-651 5 ton condenser with a C23-51/65 coil. A week ago, it quit cooling -- found a leak in the outside condenser coil. The first serviceman said he could not repair it and wanted to sell a complete new R410a system. I'm trying to find someone that can try welding it up and then recharging with R22. My question: if the repair is unsuccessful, can just the condenser be replaced (with a dry R22 unit) ? How would I know what condenser would be a good match ?
I found some information online that says this Lennox combination has a SEER of 12. The dry R22 condensers (Goodman, Rheem, etc) I have seen are 13 SEER. Would this work ?
Since she is just getting started, she doesn't have a lot of money to spend. I'm hoping it can be repaired so she can save up some money for a complete replacement -- which ultimately is what will be needed.