This morning, I completed the annual maintenance service on a Carrier Infinity Series heating and cooling system for one of my clients. I started by thoroughly cleaning the outdoor condenser coil to ensure optimal heat transfer. Next, I replaced the air filter and inspected the blower assembly, verifying proper airflow. I then checked the refrigerant charge, adding 8 ounces of R-410A to bring it up to the manufacturer's specification. Finally, I tested all electrical components and system controls to confirm the HVAC equipment is operating at peak efficiency and reliability. The homeowner now has a well-maintained, whole-home comfort solution.