Coolant Chemistry Determines Whether Your Unit Survives 15 or 20 Years

https://precision-five-star-hvac.theburnward.com/accurate-load-calculation-determines-which-equipment-outlasts-the-other-by-5-years

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