Install, inspect, and maintain HVAC systems (split units, package units, FCUs, AHUs, etc.)Perform troubleshooting and repairs of mechanical and electrical faultsHandle refrigerant charging, leak detection, and recoveryRead and interpret technical drawings and schematicsConduct preventive maintenance (PM) and service activitiesCheck and maintain airflow, temperature, and system performanceReplace defective components such as compressors, motors, filters, thermostatsEnsure compliance with safety standards and regulationsCoordinate with engineers and supervisors on-site