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4 ton Ruud unit split into 2 for apt.

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  • 4 ton Ruud unit split into 2 for apt.

    We had a 4 ton condensor go out on my MIL's system, and now we have to decide what to do. One contractor wants to replace the entire system because it was split in two, and a second 1 1/2 ton condensor was added to the original 4 ton. One problem seems to be that the return air for the upstairs is on the lower floor, which is closed off as an accessory apt, currently vacant, but not always. Another problem is the two condensors on one coil/fan unit. And another problem is the split returns. Second contractor wants to replace the 4 ton condensor and leave it as is. Third wants to replace the shot 4 ton with a 2 1/2 ton to complement the other 1 1/2 ton condensor. I don't know how the thermostats are configured.

    Any thoughts? Thanks in advance.