Coolant Chemistry Determines Whether Your Unit Survives 15 or 20 Years

https://precisionhvacrepair-after-hours-sac-near-university-park6171.urbanvellum.com/posts/identifying-which-parts-fail-between-12-and-17-years-determines-repair-versus-replacement

The refrigerant your central AC unit uses directly governs its lifespan. Systems charged with R-410A typically last 15–20 years, while those still running on R-22 face EPA phase-out constraints that accelerate replacement urgency