Correctly Sizing an HVAC Unit Determines Whether Replacement Becomes Inevitable
https://sacramentoprecisionhvacrepair-pros-near-westacre-park6826.lumenforgex.com/posts/continuing-repairs-on-18-year-old-hvac-units-traps-you-in-escalating-failure-liability
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