Correctly Sizing an HVAC Unit Determines Whether Replacement Becomes Inevitable
https://sacramentoprecisionhvacrepair-pros-near-westacre-park6826.lumenforgex.com/posts/extending-your-ac-unit-s-life-requires-preventive-maintenance-every-two-years
For a 2000 square foot house, you typically need a system between 3.5 and 5 tons of cooling capacity, depending on insulation, ductwork, and local climate