Migue, if they replace the coil with a new aluminum unit it will work with new 410A. Then you will only have to replace the condenser and coil. The rest of the airhandler is only a blower motor and heat strips basically. The good thing is the new condenser should be charged with almost all of the freon from the factory and the new 410 os much cheaper. They are basically trying to force everyone to swap to the 410 by making the 22 more expensive.
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