Coolant Chemistry Determines Whether Your Unit Survives 15 or 20 Years

https://precisionhireprosac.image-perth.org/balancing-airflow-measurement-reveals-when-your-hvac-unit-needs-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