Air Handler and Condenser Different Sizes? - Ask the Expert Episode 273
"Hey Dan, will a 2-ton 14-SEER heat pump Goodman work with a 4-ton variable speed air handler Goodman split system?"
In some cases, yes. It's going to depend on what kind of Goodman air handler you got. If the air handler has a TXV rated for a 2-ton, and has the capability of running the air flow down to 800 CFM, then it should work.